Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8049581 | Piezoelectric filter and method for manufacturing the same | Tomohiro Iwasaki, Keiji Onishi | 2011-11-01 |
| 8022794 | Micromachine switch, filter circuit, duplexer circuit, and communication device | Takehiko Yamakawa, Keiji Onishi | 2011-09-20 |
| 7986198 | Frequency-variable acoustic thin film resonator, filter and communication apparatus using the same | Takehiko Yamakawa, Keiji Onishi | 2011-07-26 |
| 7893793 | Film bulk acoustic wave resonator and method for manufacturing the same | Tomohiro Iwasaki, Keiji Onishi, Takehiko Yamakawa, Tomohide Kamiyama | 2011-02-22 |