Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661234 | Failure determining apparatus of gas-insulated electrical appliance | Hiroshi Doi, Yasuhiro Maeda, Hirohide Aoki, Hiroyuki Hama, Naoyuki Kajita +1 more | 2003-12-09 |
| 4945256 | Device for producing even closing of a circuit breaker | Shoji Tada, Toshiko Sugio | 1990-07-31 |