Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9344199 | Optical receiver and light receiving method | Yuji Ishii, Tamotsu Akashi, Koji Terada | 2016-05-17 |
| 9335350 | Electronic device and current monitoring method | Hiroshi Onimaru, Yuji Ishii, Kenji Rikimaru, Hiroshi Adachi | 2016-05-10 |
| 6286550 | Valve apparatus | Seiji Yamaki, Hideo Ohtani, Hiroshi Yamamoto, Ryoji Okutsu, Koji Izumi | 2001-09-11 |
| 6120006 | Valve device | Seiji Yamaki, Ryuji Shinozaki | 2000-09-19 |