Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8558640 | Directional coupler | Takami Hirai, Shinsuke Yano | 2013-10-15 |
| 6828881 | Stacked dielectric filter | Yasuhiko Mizutani, Takami Hirai, Kazuhiro Kadota, Hironobu Kimura | 2004-12-07 |