Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10610834 | Asymmetric membrane | Takashi Yamamoto, Daisuke Ohno, Yohei Abiko, Hiroaki Oka, Shuya Suenaga +2 more | 2020-04-07 |
| 8433836 | Centralized master-slave-communication control system and method with multi-channel communication on the same line | Isao Matsumoto, Hidekazu Kikuchi | 2013-04-30 |
| 5432477 | Wide frequency range amplifier apparatus | Seiichi Nishiyama, Masato Kawata, Kiyoshi Furuya | 1995-07-11 |
| 4751577 | Gain control circuit | — | 1988-06-14 |