SEIKO EPSON CORPORATION patent applications on February 6th, 2025
Patent Applications by SEIKO EPSON CORPORATION on February 6th, 2025
SEIKO EPSON CORPORATION: 20 patent applications
SEIKO EPSON CORPORATION has applied for patents in the areas of B01D53/22 (3), B41J2/165 (3), B01D63/08 (2), G03B21/20 (2), B41J11/00 (2) B01D53/22 (1), G01P3/44 (1), H01Q1/2208 (1), G09G3/3426 (1), G09G3/3291 (1)
With keywords such as: unit, gas, ink, configured, liquid, light, circuit, head, signal, and medium in patent application abstracts.
Patent Applications by SEIKO EPSON CORPORATION
20250041790. Gas Separation Apparatus_simplified_abstract_(seiko epson corporation)
Inventor(s): Satoru FUKUI of Chino (JP) for seiko epson corporation
IPC Code(s): B01D53/22
CPC Code(s): B01D53/22
Abstract: a gas separation apparatus includes a first gas chamber including: a first wall part configured to define a first space, a mixed gas supply port, and a mixed gas discharge port; a second gas chamber including a second wall part configured to define a second space, and a gas component discharge port that is configured to discharge a predetermined gas component; and a rotary fan including a base part that is hollowed, that is configured to rotate around a rotation axis, a vane part that is hollowed, that is disposed in the first space, and a first gas separation membrane that is configured to separate an inside and an outside of the vane part, and that allows the predetermined gas component to permeate therethrough.
20250041791. Gas Separation Device_simplified_abstract_(seiko epson corporation)
Inventor(s): Masahiro FURUSAWA of Chino (JP) for seiko epson corporation
IPC Code(s): B01D53/22, B01D63/08
CPC Code(s): B01D53/226
Abstract: a gas separation device includes a first separation membrane unit including a first gas separation membrane configured to separate a predetermined gas component contained in a mixed gas supplied to a first front surface, by allowing the predetermined gas component to permeate through a first back surface, which is opposite to the first front surface, and a first gas flow path section through which the separated predetermined gas component flows; a gas introduction unit that is arranged via a gap from the first front surface and that includes a gas introduction section that introduces the mixed gas toward the first gas separation membrane; and a gas exhaust unit that is arranged via a gap from the first front surface and that includes a gas exhaust section that exhausts the mixed gas introduced from the gas introduction unit.
Inventor(s): Masahiro FURUSAWA of Chino (JP) for seiko epson corporation, Kei TADACHI of Matsumoto (JP) for seiko epson corporation
IPC Code(s): B01D53/22, B01D63/08, B01D69/02, B01D69/06
CPC Code(s): B01D53/227
Abstract: a gas separation membrane unit includes: a gas separation membrane configured to separate a predetermined gas component contained in a mixed gas supplied to a first surface by allowing the predetermined gas component to permeate to a second surface that is a reverse surface of the first surface; a gas flow path part including a wall body configured to define an internal space through which the predetermined gas component separated flows; and a first convex structure protruding from at least one of the first surface of the gas separation membrane and an outer surface of the wall body.
Inventor(s): Daichi ORIHARA of Shiojiri (JP) for seiko epson corporation
IPC Code(s): B41J2/045
CPC Code(s): B41J2/0451
Abstract: a liquid ejection head includes an ejection portion ejecting a liquid in response to supply of a drive signal, a supply unit supplying the drive signal to the ejection portion, and a detection unit detecting a vibration in the ejection portion, wherein the supply unit supplies a check drive signal having a check waveform of the drive signal to the ejection portion in a first unit period started by a first latch pulse of latch pulses contained in a latch signal supplied to the supply unit and ended by a second latch pulse provided next to the first latch pulse of the latch pulses, and the detection unit detects a vibration remaining in the ejection portion in a second unit period started by the second latch pulse and ended by a third latch pulse provided next to the second latch pulse of the latch pulses.
Inventor(s): Daichi ORIHARA of Shiojiri (JP) for seiko epson corporation
IPC Code(s): B41J2/045, B41J2/14
CPC Code(s): B41J2/04581
Abstract: a liquid ejection apparatus includes an ejection portion including a piezoelectric element driven by a drive signal, a first wire to which a first drive signal of the drive signal is supplied, a second wire electrically coupled to an element electrode of the piezoelectric element, and a detection circuit detecting a potential of the element electrode varying according to a vibration remaining in the piezoelectric element after driving of the piezoelectric element, wherein a first amplifier circuit of the detection circuit includes a first amplifier having a first input terminal, a second input terminal, and a first output terminal, a first resistor electrically coupling a first node electrically coupled to the first input terminal and a second node electrically coupled to the first output terminal, and a second resistor electrically coupling the first node and the second wire, and the first wire is electrically coupled to the second input terminal.
Inventor(s): Junichiro MATSUSHITA of MATSUMOTO-SHI (JP) for seiko epson corporation
IPC Code(s): B41J2/165, B41J2/14
CPC Code(s): B41J2/1652
Abstract: there is provided a liquid ejecting apparatus including: a liquid ejecting head having an ejection surface including a first nozzle row configured to eject a first ink and a second nozzle row configured to eject a second ink; and a support configured to support the liquid ejecting head in an inclined posture in which the ejection surface is inclined with respect to a horizontal plane, in which the first nozzle row is positioned above the second nozzle row with respect to a vertical direction in a state where the support supports the liquid ejecting head in the inclined posture, and a thickening resistance of the second ink is higher than a thickening resistance of the first ink.
Inventor(s): Takashi AKASE of Azumino-Shi (JP) for seiko epson corporation
IPC Code(s): B41J2/165, G06K15/00, G06K15/10
CPC Code(s): B41J2/16579
Abstract: included are: a printing head including a plurality of nozzles configured to discharge a liquid; a cleaning unit configured to perform cleaning of the printing head; a detector configured to perform a faulty-nozzle detecting process to each of the plurality of nozzles, the faulty-nozzle detecting process being a process of detecting a faulty nozzle that does not perform discharging properly; a database configured to store cause data used to determine a cause of a discharging fault of the nozzle; and a control unit, in which the control unit checks faulty nozzle information against the cause data to select cleaning to be performed by the cleaning unit, the faulty nozzle information including a position, in the printing head, of the faulty nozzle detected by the detector.
20250042174. Recording Method And Recording Apparatus_simplified_abstract_(seiko epson corporation)
Inventor(s): Yuta ASAKAWA of Azumino (JP) for seiko epson corporation
IPC Code(s): B41J2/21, B41J11/00, C09D11/54
CPC Code(s): B41J2/2117
Abstract: a recording method according to an embodiment of the present disclosure includes a treatment liquid attachment step of ejecting a treatment liquid containing an aggregating agent from an ink jet head for a treatment liquid and attaching the treatment liquid to a recording medium, and an ink attachment step of ejecting an aqueous ink composition containing a coloring material from an ink jet head for ink and attaching the ink composition to the recording medium, in which the treatment liquid attachment step and the ink attachment step are performed by scanning performed while moving the ink jet head for a treatment liquid and the ink jet head for ink with respect to the recording medium, the treatment liquid and the ink composition are attached to a same scanning region in the same scanning, the aggregating agent is a calcium salt, a content of the calcium salt with respect to a total mass of the treatment liquid is 0.35 mol/kg or less, in the treatment liquid attachment step, a range of a maximum value of an attachment amount of the calcium salt in a region of the recording medium to which the treatment liquid and the ink composition are attached is 0.6 �mol/inchor less, and in the treatment liquid attachment step and the ink attachment step, an air blowing step of blowing air onto the recording medium is provided.
20250042183. Recording Method and Recording Apparatus_simplified_abstract_(seiko epson corporation)
Inventor(s): Yuta ASAKAWA of Azumino (JP) for seiko epson corporation
IPC Code(s): B41J11/00, B41J29/377, B41M7/00, C09D11/107
CPC Code(s): B41J11/0022
Abstract: a recording method which uses a water-based ink composition and a treatment liquid containing an aggregating agent, includes: a main scanning to eject the ink composition and the treatment liquid from an ink jet head so as to be adhered to a recording medium while the ink jet head is transferred with respect to the recording medium; a sub-scanning to transport the recording medium in a sub-scanning direction which intersects a direction of the main scanning; and a ventilation step of sending a wind to the recording medium in the main scanning. in the main scanning, by a portion of the ink jet ink head to eject the ink composition and the treatment liquid located upstream in the sub-scanning direction, the ink composition and the treatment liquid are overlapped and adhered to the same main scanning region of the recording medium by the same main scanning, and by a portion of the ink jet ink head to eject the ink composition and the treatment liquid located downstream in the sub-scanning direction, the ink composition is adhered to the recording medium, and when the ink composition is adhered thereto, the treatment liquid is not overlapped and adhered to the same main scanning region of the recording medium by the same main scanning. in addition, when the main scanning is performed, the recording medium to which the ink composition and the treatment liquid are adhered has a surface temperature of 33� c. or less.
Inventor(s): Keita HANAWA of MATSUMOTO-SHI (JP) for seiko epson corporation, Kazunori TAKABAYASHI of OKAYA-SHI (JP) for seiko epson corporation
IPC Code(s): B41J25/304, B41J2/165, B41J3/407, B41J11/06, B41J11/14, B41J29/46
CPC Code(s): B41J25/304
Abstract: a printing apparatus includes: an attachment unit configured to enable a medium support portion to be attached and detached, the medium support portion including a support face; a head; a first movement unit configured to move the head; a second movement unit configured to move the head; a control unit configured to control the first movement unit and the second movement unit; an input unit; and a notification unit. the head is configured to move to an opposed region in which the head is opposed to the support face. when a movement instruction is inputted into the input unit, the notification unit gives notification that prompts the user to detach the medium support portion, and the control unit causes the head to move from a standby position to a cleaning position, a portion of or whole of the cleaning position being included in the opposed region.
Inventor(s): Tomoaki Takahashi of Minowa-machi (JP) for seiko epson corporation, Noriyuki Murashima of Chino-shi (JP) for seiko epson corporation
IPC Code(s): G01C19/5649
CPC Code(s): G01C19/5649
Abstract: a circuit device includes a drive circuit that drives a physical quantity transducer, a detection circuit that detects a physical quantity based on a detection signal from the physical quantity transducer to output detection data of the physical quantity, a dsp that performs a digital signal process including a digital filtering process on the detection data, a storage unit that stores a program in which a plurality of instructions is written, and a cpu that operates based on the program and performs at least one of a temperature correction operation of the detection data and a failure diagnosis.
Inventor(s): Kaoru ICHINOSE of Matsumoto (JP) for seiko epson corporation, Hideo HANEDA of Shiojiri (JP) for seiko epson corporation, Tomoaki TAKAHASHI of Minowa (JP) for seiko epson corporation
IPC Code(s): G01P3/44
CPC Code(s): G01P3/44
Abstract: a circuit device is constituted by including: a detection circuit configured to include a first a/d conversion circuit that a/d converts a signal output from a sensor element to output a first digital signal and generate a detection signal in accordance with the first digital signal; a pseudo-detection circuit configured to include a second a/d conversion circuit that a/d converts a signal output from the sensor element to output a second digital signal and generate a pseudo-detection signal in accordance with the second digital signal; and a failure detection circuit configured to detect a failure of the detection circuit in accordance with a comparison result produced by comparing a value of the detection signal and a value of the pseudo-detection signal.
20250044499. LIGHT SOURCE DEVICE AND PROJECTOR_simplified_abstract_(seiko epson corporation)
Inventor(s): Norio IMAOKA of TAKAMORI-MACHI (JP) for seiko epson corporation, Yuichiro IWAMA of AZUMINO-SHI (JP) for seiko epson corporation
IPC Code(s): F21V8/00, G03B21/20
CPC Code(s): G02B6/0083
Abstract: a light source device of the present disclosure includes a light source unit including a first coupling part which is disposed in the gap and electrically couples the first and second light emitting element groups, and a first regulatory member which is disposed between a light guide member and a base substrate, and regulates a position of a light guide member with respect to a support member. the first light emitting element group has a configuration in which a plurality of first light emitting elements is coupled in series so that a current flows along a first direction, and the second light emitting element group has a configuration in which a plurality of second light emitting elements is coupled in series so that a current flows along a second direction opposite to the first direction. the first regulatory member is disposed to overlap the first coupling part.
20250044501. LIGHT SOURCE DEVICE AND PROJECTOR_simplified_abstract_(seiko epson corporation)
Inventor(s): Yuichiro IWAMA of AZUMINO-SHI (JP) for seiko epson corporation, Norio IMAOKA of NAGANO-KEN (JP) for seiko epson corporation
IPC Code(s): F21V8/00, G02B21/16
CPC Code(s): G02B6/0093
Abstract: a light source device including: a support member includes a groove in which a light guide member is disposed, a light source substrate and the support member are in contact with each other with a convex portion, and the convex portion is disposed on at least one of an opposed surface opposed to a first surface of the light source substrate and the first surface of the light source substrate to separate a light emitting element from the support member and a light guide member.
Inventor(s): Kosuke TABAYASHI of AZUMINO-SHI (JP) for seiko epson corporation, Norikazu KADOTANI of AZUMINO-SHI (JP) for seiko epson corporation
IPC Code(s): G02B26/00, G03B21/20
CPC Code(s): G02B26/008
Abstract: a wavelength conversion device includes a rotating plate, a wavelength converter disposed further on the outer side than an opening in a radial direction of the rotating plate, a rotating body coupled to the rotating plate, a driving source configured to rotate the rotating plate and the rotating body centering on a rotation axis, a suction part configured by combining the rotating plate and the rotating body, provided on an inner side of the opening of the rotating plate, and communicating with, via the opening, a space on a side opposite to the driving source with respect to the rotating plate, a plurality of fins rotated together with the rotating plate, and a plurality of flow paths provided among the fins and configured to cause an air flow flowing into an inside of the suction part via the opening to flow to the outside of the rotating body.
20250044597. VIRTUAL-IMAGE DISPLAY DEVICE_simplified_abstract_(seiko epson corporation)
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: a first display unit including a first image element, a first projection optical system, and a first mirror; a second display unit including a second image element, a second projection optical system, and a second mirror; a coupling member configured to couple the first display unit and the second display unit; a penetration-type fitting structure formed at an attaching section and at a support portion, the attaching section being formed at the first display unit, the support portion being provided at the coupling member; and a photocurable-type adhesive material held between the attaching section and the support portion, in which an additional light transmitting structure is formed at one of the attaching section and the support portion, and the light transmitting structure is configured to cause light to reach a boundary region between the attaching section and the support portion.
Inventor(s): Toshiyuki KASAI of Okaya-shi (JP) for seiko epson corporation, Takeshi Nomura of Shiojiri-shi (JP) for seiko epson corporation
IPC Code(s): G09G3/3291, G09G3/3233
CPC Code(s): G09G3/3291
Abstract: an electro-optical device is provided with a plurality of data lines, a plurality of potential lines supplied with a predetermined potential, a driving transistor controlling a current level according to the voltage between the gate and the source, a first storage capacitor which holds the voltage between the gate and a source of the driving transistor, and a light-emitting element. one data line among the plurality of data lines and one potential line among the plurality of potential lines are arranged to be adjacent to each other, and a second storage capacitor holding the potential of the one data line is formed by the one data line and the one potential line.
20250046262. Circuit Device And Display System_simplified_abstract_(seiko epson corporation)
Inventor(s): Sebdani mahmood MAZROUEI of Markham (CA) for seiko epson corporation, Stanislav ZAOZERSKII of Richmond (CA) for seiko epson corporation, Kumar anandabairavasamy ANAND of Richmond (CA) 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, a dimmer circuit, a first color correction circuit, and a second color correction circuit. the luminance analysis circuit performs luminance analysis and resolution reduction on image data of an input image to output luminance information having resolution lower than that of the input image. the dimmer circuit determines, according to the luminance information, light source luminance information indicating light-emission luminance at which each of light source elements emits light. the first color correction circuit performs color correction on first split image data corresponding to a first area of a display panel, based on the light source luminance information. the second color correction circuit performs color correction on second split image data corresponding to a second area of the display panel, based on the light source luminance information.
20250046982. RESPONDER AND POSITIONING SYSTEM_simplified_abstract_(seiko epson corporation)
Inventor(s): Kimio NAGASAKA of HOKUTO-SHI (JP) for seiko epson corporation
IPC Code(s): H01Q1/22, H01Q3/26, H01Q3/42
CPC Code(s): H01Q1/2208
Abstract: a responder that receives an interrogation wave from an interrogator and transmits a response wave to the interrogator, includes at least one antenna receiving the interrogation wave, a time-series information converter measuring a quadrature phase amplitude of the interrogation wave received by the antenna and converting the quadrature phase amplitude into time-series information, a memory storing the time-series information, and a transmission controller controlling to transmit the response wave from the antenna based on the time-series information stored in the memory, wherein the transmission controller reads out the time-series information in an order reverse to an order of the storage in the memory and generates the response wave.
Inventor(s): Yoichiro NISHIMURA of KITAKYUSHU-SHI (JP) for seiko epson corporation
IPC Code(s): H04N1/00
CPC Code(s): H04N1/00525
Abstract: a medium-discharging device includes: a device main body including a medium-discharging section that discharges a medium; a medium-receiving tray that receives the medium discharged by the medium-discharging section; and a pressing member that is configured to be attached to and detached from to the device main body and presses the medium discharged by the medium-discharging section against the medium-receiving tray in a state in which the pressing member is attached to the device main body, in which the pressing member is configured to switch, in the state in which the pressing member is attached to the device main body, between a first state in which the pressing member comes into contact with the medium-receiving tray and a second state in which the pressing member retreats upward so as to be apart from the medium-receiving tray.
SEIKO EPSON CORPORATION patent applications on February 6th, 2025
- SEIKO EPSON CORPORATION
- B01D53/22
- CPC B01D53/22
- Seiko epson corporation
- B01D63/08
- CPC B01D53/226
- B01D69/02
- B01D69/06
- CPC B01D53/227
- B41J2/045
- CPC B41J2/0451
- B41J2/14
- CPC B41J2/04581
- B41J2/165
- CPC B41J2/1652
- G06K15/00
- G06K15/10
- CPC B41J2/16579
- B41J2/21
- B41J11/00
- C09D11/54
- CPC B41J2/2117
- B41J29/377
- B41M7/00
- C09D11/107
- CPC B41J11/0022
- B41J25/304
- B41J3/407
- B41J11/06
- B41J11/14
- B41J29/46
- CPC B41J25/304
- G01C19/5649
- CPC G01C19/5649
- G01P3/44
- CPC G01P3/44
- F21V8/00
- G03B21/20
- CPC G02B6/0083
- G02B21/16
- CPC G02B6/0093
- G02B26/00
- CPC G02B26/008
- G02B27/01
- CPC G02B27/0172
- G09G3/3291
- G09G3/3233
- CPC G09G3/3291
- G09G3/34
- G09G3/00
- CPC G09G3/3426
- H01Q1/22
- H01Q3/26
- H01Q3/42
- CPC H01Q1/2208
- H04N1/00
- CPC H04N1/00525
(Ad) Transform your business with AI in minutes, not months
Trusted by 1,000+ companies worldwide
