Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6838960 | Circuit breaker | Koji Asakawa, Hisao Kawato, Hideto Yamagata, Akihiko Kohanawa | 2005-01-04 |
| D468687 | Manual motor starter | Yoshinobu Hamada, Koji Asakawa, Tatsunori Takahashi, Katsunori Kuboyama, Junichi Iwase +1 more | 2003-01-14 |
| 5223789 | AC/DC current detecting method | Shoji Katsuyama, Hideki Koyama | 1993-06-29 |