Invention Publication
- Patent Title: LAMINATED PIEZOELECTRIC ELEMENT
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Application No.: EP20887314.1Application Date: 2020-10-29
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Publication No.: EP4061010A1Publication Date: 2022-09-21
- Inventor: KAGAWA, Yusuke , ASHIKAWA, Teruo , HIRAGUCHI, Kazuo
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo 106-8620 26-30, Nishiazabu 2-chome Minato-ku
- Agency: Klunker IP Patentanwälte PartG mbB
- Priority: JP2019204572 20191112
- International Announcement: WO2021095546 20210520
- Main IPC: H04R17/00
- IPC: H04R17/00 ; H01L41/047 ; H01L41/083 ; H01L41/09 ; H01L41/18
Abstract:
An object of the present invention is to provide a laminated piezoelectric element in which piezoelectric films are laminated, capable of easily performing connection of an electrode layer of each piezoelectric film and an external device. The piezoelectric film includes a piezoelectric layer and a laminated sheet in which an electrode layer and a protective layer are laminated, piezoelectric layers are arranged between the laminated sheets facing the electrode layer, the laminated sheet includes a protruding portion protruding from the piezoelectric layer, the protruding portion is provided with a lead-out wire attached to a surface between the electrode layer and the protective layer, and the object is achieved by contacting the lead-out wire and connecting electrode layers having a same polarity of each piezoelectric film.
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