| 发明名称 | Piezoelectric element, liquid ejecting head, and liquid ejecting apparatus | ||
| 摘要 | A piezoelectric element comprises a piezoelectric layer and electrodes provided to the piezoelectric layer. The piezoelectric layer has a perovskite structure that includes Bi, Fe, Ba, Ti, and Co, and the mole ratio of Co to the total amount of Co and Fe is 0.02 or more and 0.07 or less. | ||
| 申请公布号 | US8783835(B2) | 申请公布日期 | 2014.07.22 |
| 申请号 | US201113297176 | 申请日期 | 2011.11.15 |
| 申请人 | Seiko Epson Corporation | 发明人 | Takahashi Toshiaki;Sakai Tomohiro |
| 分类号 | B41J2/045 | 主分类号 | B41J2/045 |
| 代理机构 | Workman Nydegger | 代理人 | Workman Nydegger |
| 主权项 | 1. A piezoelectric element, comprising a piezoelectric layer; and electrodes provided to the piezoelectric layer, wherein the piezoelectric layer has a perovskite structure that includes Bi, Fe, Ba, Ti, and Co, and a mole ratio of Co to the total amount of Co and Fe is 0.02 or more and 0.07 or less and a general formula of the piezoelectric layer is: [a{Bi(Fe1-bCob)O3}−(1−a){BaTiO3}], wherein 0.6≦a≦0.9. | ||
| 地址 | Tokyo JP | ||