| 发明名称 |
Piezoelectric composition, piezoelectric ceramic, transducer, and ultrasonic motor |
| 摘要 |
A piezoelectric composition includes a compound represented by a general expression Bi4Ti3O12-SrBi4Ti4O15 as a main component; and Mn or a Mn compound as an additive. A Mn content is less than 1.0% by mass based on a main component amount.
|
| 申请公布号 |
US8564180(B2) |
申请公布日期 |
2013.10.22 |
| 申请号 |
US201113038814 |
申请日期 |
2011.03.02 |
| 申请人 |
FURUKAWA MASAHITO;TANAKA DAISUKE;TAKENAKA TADASHI;NAGATA HAJIME;HIRUMA YUJI;TDK CORPORATION |
发明人 |
FURUKAWA MASAHITO;TANAKA DAISUKE;TAKENAKA TADASHI;NAGATA HAJIME;HIRUMA YUJI |
| 分类号 |
H01L41/187 |
主分类号 |
H01L41/187 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
