发明名称 PIEZOELECTRIC DEVICE
摘要 In a piezoelectric device, an identification pattern provided on a main face of a piezoelectric body is covered with an electrode, so as to inhibit the identification pattern from generating particles, while the identification pattern makes the polarity of the piezoelectric device discernible by the appearance thereof.
申请公布号 US2014319973(A1) 申请公布日期 2014.10.30
申请号 US201414182589 申请日期 2014.02.18
申请人 TDK CORPORATION 发明人 MOTANI Ryuta;NAGATA Kazuo;HOMMA Mitsunao
分类号 H01L41/047;G11B33/14 主分类号 H01L41/047
代理机构 代理人
主权项 1. A piezoelectric device comprising: a piezoelectric body having a pair of main faces opposing each other; an electrode arranged on the main face of the piezoelectric body; and an identification pattern disposed on the main face of the piezoelectric body and covered with the electrode.
地址 Tokyo JP