Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6621403 | Overload tripping device for circuit breaker | Naoshi Uchida, Katsunori Kuboyama, Jun Oyama | 2003-09-16 |
| 6577215 | Instantaneous-tripping circuit breaker | Koji Nomura, Katsunori Kuboyama, Koji Asakawa, Takeshi Emura | 2003-06-10 |
| 6512434 | Circuit breaker with shift guide | Katsunori Kuboyama, Naoshi Uchida | 2003-01-28 |