Invention Grant
- Patent Title: Multilayer piezoelectric element and injector using the same
- Patent Title (中): 多层压电元件和注射器使用相同
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Application No.: US13728184Application Date: 2012-12-27
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Publication No.: US08648517B2Publication Date: 2014-02-11
- Inventor: Takeshi Okamura , Masaki Terazono , Tomohiro Kawamoto , Takafumi Tsurumaru , Shigenobu Nakamura , Ken Yamamoto
- Applicant: Kyocera Corporation
- Applicant Address: JP Kyoto
- Assignee: Kyocera Corporation
- Current Assignee: Kyocera Corporation
- Current Assignee Address: JP Kyoto
- Agency: DLA Piper LLP (US)
- Priority: JP2005-175719 20050615; JP2005-188986 20050628; JP2005-283682 20050929; JP2005-283684 20050929; JP2005-313865 20051028; JP2006-089697 20060329; JP2006-089698 20060329; JP2006-152288 20060531; JP2006-152289 20060531
- Main IPC: H01L41/083
- IPC: H01L41/083

Abstract:
A multilayer piezoelectric element includes a plurality of piezoelectric layers and a plurality of metal layers stacked alternately. The plurality of metal layers include a plurality of low-filled metal layers having a lower filling rate of metal composing the metal layers than oppositely disposed metal layers adjacent to each other in a stacking direction. The plurality of metal layers may include a plurality of thin metal layers having a smaller thickness than oppositely disposed metal layers adjacent to each other in a stacking direction. Where the plurality of metal layers are composed mainly of an alloy, the plurality of metal layers may include a plurality of high-ratio metal layers having a higher ratio of a component constituting the alloy than oppositely disposed metal layers adjacent to each other in a stacking direction.
Public/Granted literature
- US20130161421A1 Multilayer Piezoelectric Element and Injector Using the Same Public/Granted day:2013-06-27
Information query
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