Piezoelectric device, liquid ejecting head, and liquid ejecting apparatus

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9919523
APP PUB NO 20170266972A1
SERIAL NO

15452560

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A piezoelectric device includes an actuator substrate that includes a plurality of piezoelectric element rows having a plurality of piezoelectric elements, and a wiring substrate that is disposed so as to face the actuator substrate. The piezoelectric element rows include a plurality of individual electrodes disposed for each of the piezoelectric elements, and a common electrodes common to the plurality of piezoelectric elements. The wiring substrate includes a core portion disposed on a surface on the actuator substrate side, an individual wiring portion that partially covers the core portion, a common wiring portion that partially covers the core portion, and an auxiliary wiring disposed in a groove portion disposed on a first principal surface on the side opposite to the actuator substrate or on a second principal surface on the actuator substrate side. The auxiliary wiring is electrically connected to the common wiring portion. The individual electrode and the common electrode are respectively electrically connected to the individual wiring portion and the common wiring portion.

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Patent Owner(s)

  • SEIKO EPSON CORPORATION

International Classification(s)

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  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirai, Eiju Azumino, JP 141 569
Naganuma, Yoichi Matsumoto, JP 53 115
Saimen, Munehide Suwa, JP 28 71
Takabe, Motoki Shiojiri, JP 148 333
Tsukahara, Katsutomo Shiojiri, JP 35 222

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