Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9838055 | Directional coupler and wireless communication device | — | 2017-12-05 |
| 9531053 | Directional coupler and wireless communication device | Toshiyasu Fujiwara, Chengbin LIN, Takeshi Oohashi | 2016-12-27 |
| 9385411 | Directional coupler | Takeshi Ohashi | 2016-07-05 |
| 9300027 | Directional coupler | Hajime Kuwajima | 2016-03-29 |