View source for 20250219611. Acoustic Multilayer Fi (NITTO DENKO)

= ACOUSTIC MULTILAYER FILM, HIGH FREQUENCY FILTER DEVICE, AND BULK ACOUSTIC WAVE FILTER DEVICE =

'''Abstract''':
a stress-relaxed acoustic multilayer film, and a high frequency filter device using such a stress-relaxed acoustic multilayer film are provided. the acoustic multilayer film includes two or more pairs of a first layer and a second layer, the first layer having a first specific acoustic impedance, the second layer having a specific acoustic impedance lower than the first specific acoustic impedance, and the first layer and the second layer being alternately laminated on a support substrate, wherein at least one of the first layers of the acoustic multilayer film is divided in a laminated direction by a dividing layer.

'''Inventor(s)''': [[:Category:Yuzuki AOKI of Ibaraki-shi, Osaka  JP|Yuzuki AOKI]], [[:Category:Daisuke NAKAMURA of Ibaraki-shi, Osaka  JP|Daisuke NAKAMURA]], [[:Category:Gaku TSUBURAOKA of Ibaraki-shi, Osaka  JP|Gaku TSUBURAOKA]], [[:Category:Manami KUROSE of Ibaraki-shi, Osaka  JP|Manami KUROSE]], [[:Category:Hironobu MACHINAGA of Ibaraki-shi, Osaka  JP|Hironobu MACHINAGA]]

'''CPC Classification''': [[:Category:CPC_H03H9/02133|H03H9/02133]] (IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS  (measuring, testing ; arrangements for producing a reverberation or echo sound ; impedance networks or resonators consisting of distributed impedances, e.g. of the waveguide type, ; control of amplification, e.g. bandwidth control of amplifiers, ; tuning resonant circuits, e.g. tuning coupled resonant circuits, ; networks for modifying the frequency characteristics of communication systems ))


[[Category:Patent Applications]]
[[Category:NITTO DENKO CORPORATION]]
[[Category:CPC_H03H9/02133]]
[[Category:Yuzuki AOKI of Ibaraki-shi, Osaka  JP]]
[[Category:Daisuke NAKAMURA of Ibaraki-shi, Osaka  JP]]
[[Category:Gaku TSUBURAOKA of Ibaraki-shi, Osaka  JP]]
[[Category:Manami KUROSE of Ibaraki-shi, Osaka  JP]]
[[Category:Hironobu MACHINAGA of Ibaraki-shi, Osaka  JP]]

[https://wikipatents.org/index.php?search=20250219611+rejection&title=Special%3ASearch&wprov=acrw1_-1 Search for rejections for patent application number 20250219611]


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