发明授权
- 专利标题： Piezoelectric ceramic and piezoelectric device using same
- 专利标题（中）： 压电陶瓷和压电器件使用相同
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申请号： US09593545申请日： 2000-06-14
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公开(公告)号： US06391814B1公开(公告)日： 2002-05-21
- 发明人: Taeko Tsubokura , Takeo Tsukada , Takeshi Nomura
- 申请人： Taeko Tsubokura , Takeo Tsukada , Takeshi Nomura
- 优先权： JP11-188338 19990702
- 主分类号： H01F400
- IPC分类号： H01F400
摘要：
A piezoelectric ceramic having a carbon content after sintering of less than 37 ppm by weight and a piezoelectric device such as a ceramic resonator, ceramic filter, piezoelectric element, piezoelectric buzzer, piezoelectric transformer, and ultrasonic vibrator using the same.
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