Issued Patents 2017
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9843085 | Directional coupler | Keisuke Katabuchi, Yasushi Yunoki | 2017-12-12 |
| 9722567 | Variable-frequency resonance circuit and variable-frequency filter | Yasushi Yunoki, Keisuke Katabuchi | 2017-08-01 |
| 9685688 | Directional coupler | Keisuke Katabuchi, Yasushi Yunoki | 2017-06-20 |
| 9543632 | Directional coupler | Keisuke Katabuchi, Yasushi Yunoki | 2017-01-10 |