| 发明名称 | Piezoelectric laminate, surface acoustic wave device, thin-film piezoelectric resonator, and piezoelectric actuator | ||
| 摘要 | A piezoelectric laminate including a base and a first piezoelectric layer formed above the base and including potassium sodium niobate. The first piezoelectric layer is shown by a compositional formula (KaNa1-a)xNbO3, “a” and “x” in the compositional formula being respectively 0.1<a<1 and 1≦x≦1.2. | ||
| 申请公布号 | US9148116(B2) | 申请公布日期 | 2015.09.29 |
| 申请号 | US200912556232 | 申请日期 | 2009.09.09 |
| 申请人 | Seiko Epson Corporation | 发明人 | Ueno Mayumi;Higuchi Takamitsu;Kijima Takeshi |
| 分类号 | B41J2/45;H03H9/02;H01L41/08;H01L41/187;H01L41/318 | 主分类号 | B41J2/45 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. An inkjet recording head including a piezoelectric actuator, the piezoelectric actuator comprising: a lower electrode; a piezoelectric layer formed above the lower electrode and having a compositional formula (KaNa1-a)xNbO3; and an upper electrode formed above the piezoelectric layer; wherein “a” is 0.56<a<0.85 and “x” is 1.04<x≦1.08. | ||
| 地址 | JP | ||