Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363765 | Electronic delay circuit for firing ignition element | Eiichi Suzuki, Tugio Goto | 1994-11-15 |
| 4712477 | Electronic delay detonator | Yoichi Kurihara, Tsugio Goto | 1987-12-15 |