| 发明名称 | Liquid jet head, liquid jet apparatus, and piezoelectric element | ||
| 摘要 | [Object] There are provided a liquid jet head and a liquid jet apparatus that each include a piezoelectric element including a piezoelectric layer in which the occurrence of cracks is suppressed, and the piezoelectric element.;[Solution] The liquid jet head ejects a liquid from a nozzle aperture. The liquid jet head includes a piezoelectric element including a piezoelectric layer and an electrode provided for the piezoelectric layer. The piezoelectric layer is made of a complex oxide containing bismuth, iron, barium and titanium and having a perovskite structure, and has an average crystal grain diameter of 120 nm or more and 252 nm or less. | ||
| 申请公布号 | US8783837(B2) | 申请公布日期 | 2014.07.22 |
| 申请号 | US201213604410 | 申请日期 | 2012.09.05 |
| 申请人 | Seiko Epson Corporation | 发明人 | Isshiki Tetsuya;Takahashi Toshiaki |
| 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 liquid jet head that ejects a liquid from a nozzle aperture, the liquid jet head comprising a piezoelectric element including a piezoelectric layer and electrodes provided for the piezoelectric layer, wherein the piezoelectric layer: is made of a complex oxide containing bismuth, iron, barium, titanium, and further containing an element selected from manganese, cobalt, and chromium, has a perovskite structure, and has an average crystal grain diameter of 120 nm or more and 252 nm or less. | ||
| 地址 | Tokyo JP | ||