Invention Grant
- Patent Title: Multilayer piezoelectric ceramic and method for manufacturing same, multilayer piezoelectric element, as well as piezoelectric vibration apparatus
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Application No.: US16814804Application Date: 2020-03-10
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Publication No.: US11889767B2Publication Date: 2024-01-30
- Inventor: Gouki Watanabe , Ryo Ito , Takayuki Goto , Hiroyuki Shimizu , Sumiaki Kishimoto
- Applicant: TAIYO YUDEN CO., LTD.
- Applicant Address: JP Tokyo
- Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee: TAIYO YUDEN CO., LTD.
- Current Assignee Address: JP Tokyo
- Agency: Law Office of Katsuhiro Arai
- Priority: JP 19046703 2019.03.14 JP 19048177 2019.03.15
- Main IPC: H01L41/187
- IPC: H01L41/187 ; H10N30/853 ; C04B35/495 ; C04B37/00 ; H10N30/20 ; H10N30/50 ; H10N30/053 ; H10N30/87
Abstract:
A multilayer piezoelectric ceramic is such that: its piezoelectric ceramic layers do not contain lead as a constituent element, and have a perovskite compound expressed by the composition formula LixNayK1-x-yNbO3 (where 0.02
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