Invention Grant
- Patent Title: Piezoelectric ceramic composition and piezoelectric device
- Patent Title (中): 压电陶瓷组合物和压电装置
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Application No.: US12596117Application Date: 2008-04-17
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Publication No.: US08502435B2Publication Date: 2013-08-06
- Inventor: Masato Yamazaki , Kohei Ito , Katsuya Yamagiwa , Takeshi Mitsuoka
- Applicant: Masato Yamazaki , Kohei Ito , Katsuya Yamagiwa , Takeshi Mitsuoka
- Applicant Address: JP Aichi
- Assignee: NGK Spark Plug Co., Ltd.
- Current Assignee: NGK Spark Plug Co., Ltd.
- Current Assignee Address: JP Aichi
- Agency: Sughrue Mion, PLLC
- Priority: JP2007-110049 20070419
- International Application: PCT/JP2008/057536 WO 20080417
- International Announcement: WO2008/130011 WO 20081030
- Main IPC: H01L41/187
- IPC: H01L41/187
Abstract:
There are provided a piezoelectric ceramic composition that includes a bismuth layer-structured compound, which contains Na, Bi, Co and Ln (lanthanoide), as a main component and a piezoelectric ceramic composition that includes a compound, which contains Na, Bi, Ti, Co and Ln (lanthanoide) and has a Na0.5Bi4.5Ti4O15 type crystal structure, as a main component, wherein the piezoelectric ceramic composition has an atomic ratio of 0
Public/Granted literature
- US20100133959A1 PIEZOELECTRIC CERAMIC COMPOSITION AND PIEZOELECTRIC DEVICE Public/Granted day:2010-06-03
Information query
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