SEIKO EPSON CORPORATION patent applications on January 30th, 2025
Patent Applications by SEIKO EPSON CORPORATION on January 30th, 2025
SEIKO EPSON CORPORATION: 29 patent applications
SEIKO EPSON CORPORATION has applied for patents in the areas of B41J2/175 (6), B41J13/10 (4), B41J2/045 (3), G06F3/12 (3), B41J29/13 (3) H02M3/156 (2), G09G3/3426 (2), B29C64/106 (1), C09D11/38 (1), H04R29/001 (1)
With keywords such as: section, circuit, liquid, image, output, device, data, path, unit, and color in patent application abstracts.
Patent Applications by SEIKO EPSON CORPORATION
Inventor(s): Manabu WATANABE of SHIOJIRI-SHI (JP) for seiko epson corporation
IPC Code(s): B29C64/106, B29C64/209, B29C64/232, B29C64/321, B29C64/386, B33Y10/00, B33Y50/00
CPC Code(s): B29C64/106
Abstract: a manufacturing method for an three dimensional molded object includes a first step of plasticizing a material to produce a plasticized material; a second step of forming the layer on a stage by moving a nozzle relative to the stage while ejecting the plasticized material from a nozzle opening; and a third step of stopping the ejection of the plasticized material during a movement time in which the nozzle relatively moves from an ejection stop position to an ejection restart position, wherein in the third step, a first control is performed to control the movement of the nozzle such that a difference between a first movement time, which is the movement time in a first case where a distance is a first distance, and a second movement time, which is the movement time in a second case where the distance is a second distance shorter than the first distance.
Inventor(s): Keigo ISHIKURA of SHIOJIRI-SHI (JP) for seiko epson corporation
IPC Code(s): B29C64/386, B29C64/106, B33Y10/00, B33Y50/00
CPC Code(s): B29C64/386
Abstract: a method of manufacturing a three-dimensional shaped article by ejecting a plasticized material from an ejection unit toward a stage to stack layers includes: (a) acquiring first data representing a shape of the three-dimensional shaped article; (b) acquiring time designation information designating a molding time in which molding of the three-dimensional shaped article is completed; (c) generating second data including information of a path of the ejection unit to the stage and information of an ejection amount of the plasticized material in the path so that molding of the three-dimensional shaped article is completed within the molding time designated based on the first data and the time designation information; and (d) controlling the ejection unit based on the second data to mold the three-dimensional shaped article.
Inventor(s): Shogo NAKADA of Matsumoto (JP) for seiko epson corporation, Taiki KONO of Ina (JP) for seiko epson corporation, Katsuhiro TAKAHASHI of Shiojiri (JP) for seiko epson corporation, Akihiro TOYA of Shiojiri (JP) for seiko epson corporation
IPC Code(s): B32B27/10, B32B5/02, B32B7/02, B32B29/02, B41J2/17
CPC Code(s): B32B27/10
Abstract: a liquid-absorbing body includes: an absorbing layer having a water-absorbing resin and having liquid-absorbing ability; and a base material layer stacked on at least one surface side of the absorbing layer, the base material layer having liquid permeability, in which the base material layer has a first layer including cellulose and a second layer positioned on a side of the first layer opposite to the absorbing layer, the second layer having a basis weight different from a basis weight of the first layer, and a2<a1, wherein a1 (g/cm) is the basis weight of the first layer and a2 (g/cm) is the basis weight of the second layer.
Inventor(s): Masaki MORI of SHIOJIRI-SHI (JP) for seiko epson corporation, Hitoshi TAKAAI of AZUMINO-SHI (JP) for seiko epson corporation
IPC Code(s): B41J2/14, B41J2/045
CPC Code(s): B41J2/14112
Abstract: a liquid ejecting head includes a first detection resistor designed to change its resistance value depending on a temperature of the liquid inside the pressure chambers in the first pressure chamber line, a second detection resistor designed to change its resistance value depending on a temperature of the liquid inside the pressure chambers in the second pressure chamber line, a wiring board, a first coupling terminal that couples one end of the first detection resistor and one end of the second detection resistor in common to the wiring board, and a second coupling terminal that couples another end of the first detection resistor and another end of the second detection resistor in common to the wiring board.
Inventor(s): Masaki MORI of SHIOJIRI-SHI (JP) for seiko epson corporation, Hitoshi TAKAAI of AZUMINO-SHI (JP) for seiko epson corporation
IPC Code(s): B41J2/14, B41J2/045
CPC Code(s): B41J2/14233
Abstract: a liquid ejecting head includes a detection resistor disposed on a lower side of the piezoelectric bodies in a direction of lamination and at a position not overlapping the individual electrodes, formed from the same material as that of the individual electrodes and the common electrode, and configured to change its resistance value in response to a temperature of the liquid inside the pressure chambers. the detection resistor includes an overlapping region overlapping the common electrode and a non-overlapping region not overlapping the common electrode at a cross-section where the pressure chamber substrate is sectioned at a position where the pressure chamber is present on a plane parallel to a longitudinal direction of the pressure chambers and the direction of lamination.
Inventor(s): Satoshi CHIBA of SUWA-SHI (JP) for seiko epson corporation, Kazuhiko SATO of MATSUMOTO-SHI (JP) for seiko epson corporation, Mikinori SAWAI of ITABASHI-KU (JP) for seiko epson corporation, Kazushi KODAIRA of SHIOJIRI-SHI (JP) for seiko epson corporation, Yasuhiro HOSOKAWA of SHIOJIRI-SHI (JP) for seiko epson corporation
IPC Code(s): B41J2/165, B41J2/045, B41J2/175
CPC Code(s): B41J2/1652
Abstract: the liquid ejection device includes a liquid ejection section, a pressurizing section, a wiping section, and a detection section. the pressurizing section causes the liquid to bulge from the plurality of nozzles by pressurization. the detection section detects a nozzle with which a droplet adhering to the nozzle surface comes into contact. the control method of the liquid ejection device includes causing the liquid to bulge from the plurality of nozzle groups by the pressurization of the pressurizing section which is an ejection of liquid not related to the recording, from the plurality of nozzles based on the set dummy ejection amount.
20250033362. RECORDING DEVICE_simplified_abstract_(seiko epson corporation)
Inventor(s): Yoshihisa SAKA of SHIOJIRI-SHI (JP) for seiko epson corporation, Akihiro TOYA of SHIOJIRI-SHI (JP) for seiko epson corporation, Yoshikane TSUCHIHASHI of MATSUMOTO-SHI (JP) for seiko epson corporation
IPC Code(s): B41J2/175, B41J13/10, B41J29/02, B41J29/13, B41J29/377
CPC Code(s): B41J2/175
Abstract: it includes a recording section extending in one direction, the recording section configured to eject liquid simultaneously across an entire width of a medium m a mounting section on which a container containing a liquid is mounted, a flow path coupled to the recording section and the mounting section, and a housing that houses the recording section, the mounting section, and the flow path, wherein the housing defines a discharge space s to which the medium recorded by the recording section is discharged, the discharge space is a space outside the housing, and the flow path overlaps with the discharge space when viewed from the one direction.
Inventor(s): Shuichi NAKANO of Shiojiri-shi (JP) for seiko epson corporation, Yasuhiko KOSUGI of Matsumoto-shi (JP) for seiko epson corporation, Jun SATO of Shiojiri-shi (JP) for seiko epson corporation
IPC Code(s): B41J2/175
CPC Code(s): B41J2/17546
Abstract: in a board that includes a plurality of contact portions that are arranged to contact corresponding apparatus-side terminals when the board is mounted in a printing apparatus, some contact portions are disposed in a first region, and the remaining contact portions are disposed in a second region. the some contact portions include a first contact portion, a second contact portion, a third contact portion, and a fourth contact portion. the remaining contact portions include a fifth contact portion. the some contact portions are arranged in a first pattern in the first region and the remaining contact portions are arranged in a second pattern in the second region, and the first pattern is asymmetrical to the second pattern with respect to a first virtual line.
Inventor(s): Hirokazu YANAGIHARA of Chino (JP) for seiko epson corporation
IPC Code(s): B41J2/18, B41J2/175, B41J2/19
CPC Code(s): B41J2/18
Abstract: a liquid ejecting apparatus includes one or more liquid ejecting heads each including a filter provided in a middle of a flow path through which liquid is supplied to nozzles, a liquid storage portion storing the liquid to be supplied to the liquid ejecting head, a circulation mechanism circulating the liquid between the liquid ejecting head and the liquid storage portion, and a controller controlling the circulation mechanism. the one or more liquid ejecting heads include a first liquid ejecting head including a first filter, and the controller performs, with respect to the first liquid ejecting head, a first circulation cleaning process in which a first circulation operation of circulating the liquid at a first flow rate is performed and then a second circulation operation of circulating the liquid at a second flow rate higher than the first flow rate is performed.
20250033380. RECORDING DEVICE_simplified_abstract_(seiko epson corporation)
Inventor(s): Yuji MISAWA of MATSUMOTO-SHI (JP) for seiko epson corporation, Toshihiro IMAE of MATSUMOTO-SHI (JP) for seiko epson corporation
IPC Code(s): B41J11/00, B41J2/01, B41J2/165, B41J2/17, B41J2/175, B41J3/60, B41J13/00, B41J13/10, B41J25/24, B41J25/308
CPC Code(s): B41J11/005
Abstract: a recording device has: a recording head configured to perform recording on a medium; a medium storage below the recording head configured to store the medium to be recoded; a supply path comprising a first curved supply path curved so as to be convex upward and transporting the medium fed out of the medium storage in a reversed direction via the first curved supply path; and a reversing path comprising a second curved path curved so as to be convex downward and transporting the recorded medium into a direction including a vertically upward component via second curved path from a direction including a vertically downward component; wherein the supply path joins the reversing path, and the first curved path and the second curved path overlap when viewed horizontally.
20250033386. RECORDING DEVICE_simplified_abstract_(seiko epson corporation)
Inventor(s): Satoshi NAKATA of MATSUMOTO-SHI (JP) for seiko epson corporation, Hirokazu ANADA of MATSUMOTO-SHI (JP) for seiko epson corporation
IPC Code(s): B41J13/10, B41J29/13
CPC Code(s): B41J13/103
Abstract: a recording device includes a placement section configured to pivot about a first pivot shaft between a use state and a stored state, the placement section being configured to support a medium to be recorded on by a recording section; a housing that accommodates the recording section and in which is formed a sheet feeding port; a cover section configured to pivot about a second pivot shaft between a covering state that covers at least a part of the sheet feeding port and an open state that opens up the sheet feeding port; and an interlocking section that pivots the cover section, and that pivots the cover section, wherein the cover section in the open state is in a posture along the placement section in the stored state and the sheet feeding port is between the first pivot shaft and the second pivot shaft.
20250033390. RECORDING DEVICE_simplified_abstract_(seiko epson corporation)
Inventor(s): Kazuhito NODA of SHIOJIRI-SHI (JP) for seiko epson corporation
IPC Code(s): B41J29/02, B41J29/12, B65H29/24
CPC Code(s): B41J29/02
Abstract: the recording device has a recording section that records an image on a medium by ejecting liquid onto the medium; a supply section that supplies liquid to the recording section; a substrate unit; and a frame to which the substrate unit is attached, wherein the frame is located between the supply section and the substrate unit, and the substrate unit is attached to the frame so as to define a flow space through which air flows between the substrate unit and the frame.
Inventor(s): Atsushi MUKAIDA of MATSUMOTO-SHI (JP) for seiko epson corporation, Akinobu NAKAHATA of SHIOJIRI-SHI (JP) for seiko epson corporation
IPC Code(s): B41J29/13, B41J13/03, B65H5/06
CPC Code(s): B41J29/13
Abstract: in a state in which the first cover and the second cover are closed, an end portion of a first path forming member in a second direction and an end portion of a second path forming member in a first direction overlap each other when viewed from a medium width direction, the end portion of the first path forming member in the second direction is positioned in the second direction with respect to an end portion of the second cover in the first direction and the end portion of the second path forming member in the first direction is positioned in the second direction with respect to an end portion of the first cover in the second direction. when the closed first cover is opened, the end portion of the first path forming member in the second direction moves toward the inside of a medium transport device.
Inventor(s): Yoichiro NISHIMURA of KITAKYUSHU-SHI (JP) for seiko epson corporation
IPC Code(s): B65H29/12, B41J13/10, H04N1/00
CPC Code(s): B65H29/125
Abstract: a medium discharge device includes a discharge drive roller configured to contact a first surface of a medium, a discharge driven roller that is configured to contact a second surface of the medium and nip the medium between itself and the discharge drive roller, a driven roller shaft, and a discharge assisting member configured to contact the second surface of the medium to be discharged, that has a larger diameter than the discharge driven roller, and that rotates integrally with the discharge driven roller. the discharge driven roller has a shaft hole through which the driven roller shaft passes, an inner peripheral surface of the shaft hole and an outer peripheral surface of the driven roller shaft slide with rotation of the discharge driven roller, and a quick-drying lubricant is used between the inner peripheral surface of the shaft hole and the outer peripheral surface of the driven roller shaft.
Inventor(s): Sena GOZU of Shiojiri (JP) for seiko epson corporation
IPC Code(s): C09D11/38, B41J2/175, C09D11/322, C09D11/40
CPC Code(s): C09D11/38
Abstract: a recording apparatus having an ink storage body, an ink supply section, an ink jet head, and an ink composition, wherein the ink storage body has an ink pouring port through which the ink composition is poured and a liquid level display section displaying an ink liquid level of the ink composition stored in the ink storage body, the ink jet head is supplied with the ink composition from the ink storage body via the ink supply section and ejects the ink composition to cause the ink composition to adhere to a recording medium, and the ink composition is a water-based, red-based ink containing an azo-based pigment, an acetylene glycol-based surfactant a with an hlb value of less than 10 and an acetylene glycol-based surfactant b with an hlb value of 10 or more.
Inventor(s): Tomokazu UMENO of Shiojiri (JP) for seiko epson corporation
IPC Code(s): G01P15/125, G01P15/08
CPC Code(s): G01P15/125
Abstract: a physical quantity sensor includes an element substrate, a movable body, and a fixed body. the movable body includes a suspender, a torsion spring coupled to the suspender, and a rotor that is coupled to the torsion spring and that includes a first electrode finger. the fixed body includes a stator bar that includes a second electrode finger. the rotor includes a longitudinal rotor bar extending in a y-axial direction and a traversal rotor bar extending in an x-axial direction. the longitudinal rotor bar is provided with a slit.
Inventor(s): Toshiaki MIYAO of CHINO-SHI (JP) for seiko epson corporation, Toshiyuki NOGUCHI of SHIOJIRI-SHI (JP) for seiko epson corporation, Takuya IKEDA of SHIOJIRI-SHI (JP) for seiko epson corporation
IPC Code(s): G02B27/01
CPC Code(s): G02B27/0172
Abstract: a virtual image display device includes an image element, a projection optical system configured to project an image formed on the image element, a case configured to house the image element and the projection optical system in a positioned state, and an optical appearance component on which image light emitted from the projection optical system is incident. the optical appearance component includes a first bonding surface and a second bonding surface which extend in mutually intersecting directions and are each bonded to the case, and the second bonding surface includes two portions provided at separated positions with the case interposed therebetween.
20250036017. ILLUMINATOR AND PROJECTOR_simplified_abstract_(seiko epson corporation)
Inventor(s): Shigekazu AOKI of MATSUMOTO-SHI (JP) for seiko epson corporation, Shoichi UCHIYAMA of SHIMOSUWA-MACHI (JP) for seiko epson corporation
IPC Code(s): G03B21/20, H04N9/31
CPC Code(s): G03B21/208
Abstract: an illuminator includes a light source that emits light; a collimator that parallelizes the light emitted from the light source; a first lens array that receives the light parallelized by the collimator and includes multiple first lenslets; a second lens array that receives light emitted from the first lens array and includes multiple second lenslets; and a light condenser that focuses light emitted from the second lens array at an illuminated region. the light emitted from each of at least two of the first lenslets is incident on one of the second lenslets. a focal plane of the multiple second lenslets is located in an optical path along which the light travels and located upstream from an imaginary plane containing multiple contact points where the first lenslets adjacent to each other in the first lens array are in contact with each other.
Inventor(s): Hisashi HIRAYAMA of MATSUMOTO-SHI (JP) for seiko epson corporation
IPC Code(s): G06F3/12
CPC Code(s): G06F3/1208
Abstract: an image processing method for acquiring image data and causing a display device to display a color setting unit for configuring a setting for a color of the image data is provided, the image processing method including: causing a color conversion profile designation unit to be displayed in the color setting unit, the color conversion profile designation unit being for designating a color conversion profile, when the image data includes only first image data representing a first image with a plurality of colors including a color other than a special color; and causing the color conversion profile designation unit and an amount-of-color-material designation unit to be displayed, the amount-of-color-material designation unit being for designating an amount of a plurality of color materials used in a printing device, when the image data includes the first image data and second image data representing a second image with the special color.
Inventor(s): Kazuya MORISHITA of MATSUMOTO-SHI (JP) for seiko epson corporation
IPC Code(s): G06F3/12
CPC Code(s): G06F3/1236
Abstract: a copier includes a main controller, a first communication switching circuit, and a first controller and a second controller that are configured to communicate with the main controller via the first communication switching circuit. the main controller is configured to perform first connection processing of transmitting a first connection command to the first controller and second connection processing of transmitting a second connection command to the second controller. the main controller is configured to, when receiving first response information from the first controller and not receiving second response information from the second controller, perform first reconnection processing of causing the first communication switching circuit to disconnect communication and then causing the first communication switching circuit to connect communication, and, after performing the first reconnection processing, perform the first connection processing again.
20250037673. Circuit Device And Display System_simplified_abstract_(seiko epson corporation)
Inventor(s): Sebdani mahmood MAZROUEI of Markham (CA) for seiko epson corporation, Kumar anandabairavasamy ANAND of Richmond (CA) for seiko epson corporation, Stanislav ZAOZERSKII of Markham (CA) for seiko epson corporation, Yasutoshi AKIBA of Chino (JP) for seiko epson corporation
IPC Code(s): G09G3/34, G09G3/36
CPC Code(s): G09G3/3426
Abstract: a circuit device controls a display device including light source elements and a display panel. the circuit device includes a luminance analysis circuit and a dimmer circuit. the luminance analysis circuit performs luminance analysis on image data of an input image to output luminance information. the dimmer circuit performs local dimming processing for dimming each of the light source elements based on the luminance information and global dimming processing using a global dimming parameter based on a sensor output of an ambient light sensor, to determine light source luminance information indicating light-emission luminance of each of the light source elements. the dimmer circuit performs dimming processing in which a speed to change the light-emission luminance in the global dimming processing is slower than a speed to change the light-emission luminance in the local dimming processing.
20250037674. Circuit Device And Display System_simplified_abstract_(seiko epson corporation)
Inventor(s): Sebdani mahmood MAZROUEI of Markham (CA) for seiko epson corporation, Kumar anandabairavasamy ANAND of Richmond (CA) for seiko epson corporation, Stanislav ZAOZERSKII of Richmond (CA) for seiko epson corporation, Yasutoshi AKIBA of Chino (JP) for seiko epson corporation
IPC Code(s): G09G3/34, G09G3/00
CPC Code(s): G09G3/3426
Abstract: a circuit device includes a luminance analysis circuit and a dimmer circuit. the luminance analysis circuit performs luminance analysis on image data of an input image to output luminance information. the dimmer circuit determines light source luminance information indicating light-emission luminance of each of light source elements according to the luminance information. the dimmer circuit determines the light-emission luminance of the light source element from the luminance information of a pixel by using a weight corresponding to a distance between the pixel and the light source element. the dimmer circuit sets an attenuation degree of the weight with respect to the distance to a first attenuation degree when a global dimming parameter is a first value. the dimmer circuit sets the attenuation degree to a second attenuation degree higher than the first attenuation degree when the global dimming parameter is a second value smaller than the first value.
Inventor(s): Yuki Yamamoto of Chino-shi (JP) for seiko epson corporation
IPC Code(s): H02M3/156, H03F1/32, H03F3/45
CPC Code(s): H02M3/156
Abstract: a semiconductor circuit device includes a differential amplifier circuit and a switching signal output circuit. the differential amplifier circuit outputs a current based on an output voltage of a switching regulator. the switching signal output circuit outputs a switching signal for a switching device based on a voltage at an output node of the differential amplifier circuit and a voltage corresponding to an inductor current flowing through an inductor. the differential amplifier circuit includes a first output-stage transistor and a second output-stage transistor. the first output-stage transistor is provided between a first power supply node and a first node and outputs the current. the second output-stage transistor is provided between the first node and the output node and has a gate to which a first bias voltage is input.
Inventor(s): Yuki Yamamoto of Chino-shi (JP) for seiko epson corporation
IPC Code(s): H02M3/156, H02M1/00, H03F1/32, H03F3/45
CPC Code(s): H02M3/156
Abstract: a semiconductor circuit device includes a current detecting circuit that converts an inductor current into a voltage and outputs the voltage as a current detection voltage, a differential amplifier circuit that amplifies a difference between a voltage corresponding to the output voltage and a reference voltage, a level shifter, and a comparing circuit that compares the current detection voltage with a level-shifted voltage and outputs a switching signal for a switching device. the differential amplifier circuit includes a mos transistor provided between a power supply node and an output node. the level shifter level-shifts a voltage at the output node of the differential amplifier circuit to a low potential side and outputs the level-shifted voltage.
Inventor(s): Naoki OGASAWARA of Matsumoto (JP) for seiko epson corporation
IPC Code(s): H04L9/32
CPC Code(s): H04L9/3247
Abstract: an information processing device includes a first cpu core; a second cpu core having an operating frequency higher than that of the first cpu core; and a program storage section configured to store a first module, a second module, a third module having a capacity size larger than that of the second module, a second module electronic signature, and a third module electronic signature, wherein the first cpu core is configured to, by executing the first module, perform a second module verification process of verifying the second module based on the second module electronic signature and the second cpu core is configured to, by executing the second module, perform a third module verification process of verifying the third module based on the third module electronic signature.
Inventor(s): Hisashi HIRAYAMA of MATSUMOTO-SHI (JP) for seiko epson corporation
IPC Code(s): H04N1/60, G06F3/12, G06F3/14, G06T5/92, G06T7/90
CPC Code(s): H04N1/60
Abstract: an embodiment of the present disclosure includes: acquiring image data including first image data representing a first image with a plurality of colors including a color other than a special color and second image data representing a second image with the special color; acquiring an amount of representative color material indicating an amount of a plurality of color materials used for printing by a printing device; converting the first image data into first amount-of-color-material data representing a color of the first image by an amount of a plurality of color materials, based on a color conversion profile, and converting the second image data into second amount-of-color-material data representing a color of the second image by an amount of a plurality of color materials, based on the amount of representative color material; and combining the first amount-of-color-material data and the second amount-of-color-material data and thus generating third amount-of-color-material data.
Inventor(s): Takao KATAYAMA of Matsumoto (JP) for seiko epson corporation, Akihiro FUKUZAWA of Hino (JP) for seiko epson corporation, Isamu MORIYA of Chino (JP) for seiko epson corporation
IPC Code(s): H04R29/00, H03F1/52, H03F1/56, H03F3/217, H03M1/10, H04R3/04
CPC Code(s): H04R29/00
Abstract: a semiconductor device includes: a test signal generation circuit that modulates a test signal to generate fifth and sixth modulated signals; a first amplification circuit that outputs a third and fourth amplified signals that are obtained by amplifying the fifth and sixth modulated signal to the first and second output terminal; a second amplification circuit that outputs seventh and eighth amplified signal s that are obtained by amplifying the fifth and sixth modulated signals to the third and fourth output terminals; a first peak frequency detection circuit that measures a potential difference between the first and second output terminals to detect a first peak frequency; a second peak frequency detection circuit that measures a potential difference between the third and fourth output terminals to detect a second peak frequency; and a determination circuit that determines whether or not a difference between the first and second peak frequency is included in a predetermined reference frequency difference range.
Inventor(s): Takao KATAYAMA of Matsumoto (JP) for seiko epson corporation, Akihiro FUKUZAWA of Hino (JP) for seiko epson corporation, Isamu MORIYA of Chino (JP) for seiko epson corporation
IPC Code(s): H04R29/00, G01K13/00, H03F3/183, H04R3/04
CPC Code(s): H04R29/001
Abstract: a semiconductor device includes: a test signal generation circuit that, modulates a test signal to generate third and fourth modulated signals; an amplification circuit that, outputs a third amplified signal obtained by amplifying the third modulated signal to a first output terminal and outputs a fourth amplified signal obtained by amplifying the fourth modulated signal to a second output terminal; a peak frequency detection circuit that, measures a potential difference between the first and second output terminals to detect a peak frequency at which an impedance of a sound reproduction device reaches a peak; and a determination circuit that, determines whether or not the peak frequency is included in a reference frequency range determined based on a frequency band of the test signal and temperature information of the sound reproduction device.
20250040068. Three-Phase Power Supply Switching Unit_simplified_abstract_(seiko epson corporation)
Inventor(s): Yukinori SOMA of Shiojiri (JP) for seiko epson corporation
IPC Code(s): H05K5/02, H02M5/293, H05K1/18
CPC Code(s): H05K5/0217
Abstract: the three-phase power supply switching unit includes an electrical board on which either a first wiring unit or a second wiring unit is mounted, wherein the electrical board has an input section and an output section, a first wiring unit has a first input connection section, a first output connection section, and a first wiring that, when the first wiring unit is mounted on the electrical board, connects the first input connection section and the first output connection section so that y-connection three-phase ac that was input to the input section is output as single-phase ac from the output section, and a second wiring unit has a second input connection section, a second output connection section, and a second wiring that, when the second wiring unit is mounted on the electrical board, connects the second input connection section and the second output connection section so that delta connection three-phase ac that was input to the input section is output as single-phase ac from the output section.
SEIKO EPSON CORPORATION patent applications on January 30th, 2025
- SEIKO EPSON CORPORATION
- B29C64/106
- B29C64/209
- B29C64/232
- B29C64/321
- B29C64/386
- B33Y10/00
- B33Y50/00
- CPC B29C64/106
- Seiko epson corporation
- CPC B29C64/386
- B32B27/10
- B32B5/02
- B32B7/02
- B32B29/02
- B41J2/17
- CPC B32B27/10
- B41J2/14
- B41J2/045
- CPC B41J2/14112
- CPC B41J2/14233
- B41J2/165
- B41J2/175
- CPC B41J2/1652
- B41J13/10
- B41J29/02
- B41J29/13
- B41J29/377
- CPC B41J2/175
- CPC B41J2/17546
- B41J2/18
- B41J2/19
- CPC B41J2/18
- B41J11/00
- B41J2/01
- B41J3/60
- B41J13/00
- B41J25/24
- B41J25/308
- CPC B41J11/005
- CPC B41J13/103
- B41J29/12
- B65H29/24
- CPC B41J29/02
- B41J13/03
- B65H5/06
- CPC B41J29/13
- B65H29/12
- H04N1/00
- CPC B65H29/125
- C09D11/38
- C09D11/322
- C09D11/40
- CPC C09D11/38
- G01P15/125
- G01P15/08
- CPC G01P15/125
- G02B27/01
- CPC G02B27/0172
- G03B21/20
- H04N9/31
- CPC G03B21/208
- G06F3/12
- CPC G06F3/1208
- CPC G06F3/1236
- G09G3/34
- G09G3/36
- CPC G09G3/3426
- G09G3/00
- H02M3/156
- H03F1/32
- H03F3/45
- CPC H02M3/156
- H02M1/00
- H04L9/32
- CPC H04L9/3247
- H04N1/60
- G06F3/14
- G06T5/92
- G06T7/90
- CPC H04N1/60
- H04R29/00
- H03F1/52
- H03F1/56
- H03F3/217
- H03M1/10
- H04R3/04
- CPC H04R29/00
- G01K13/00
- H03F3/183
- CPC H04R29/001
- H05K5/02
- H02M5/293
- H05K1/18
- CPC H05K5/0217
