- 专利标题： Multilayer piezoelectric ceramic and method for manufacturing same, multilayer piezoelectric element, as well as piezoelectric vibration device
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申请号： US16833251申请日： 2020-03-27
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公开(公告)号： US11631801B2公开(公告)日： 2023-04-18
- 发明人: Tomohiro Harada , Takayuki Goto , Ryo Ito , Hiroyuki Shimizu , Sumiaki Kishimoto
- 申请人： TAIYO YUDEN CO., LTD.
- 申请人地址： JP Tokyo
- 专利权人： TAIYO YUDEN CO., LTD.
- 当前专利权人： TAIYO YUDEN CO., LTD.
- 当前专利权人地址： JP Tokyo
- 代理机构： Law Office of Katsuhiro Arai
- 优先权： JPJP2019-066822 20190329,JPJP2020-052705 20200324
- 主分类号： H01L41/187
- IPC分类号： H01L41/187 ; H01L41/277 ; H01L41/083 ; H01L41/047
摘要：
A multilayer piezoelectric ceramic is constituted by: piezoelectric ceramic layers which do not contain lead as a constituent element, have a perovskite compound expressed by the composition formula LixNayK1−x−yNbO3 (where 0.02
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