Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6909341 | Surface acoustic wave filter utilizing a layer for preventing grain boundary diffusion | Ryoichi Takayama, Hidekazu Nakanishi, Toru Sakuragawa, Yasuhiko Yokota | 2005-06-21 |
| 6891449 | Antenna duplexer | Ryoichi Takayama, Yuki Satoh, Kozo Murakami, Toru Sakuragawa | 2005-05-10 |