Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8063600 | Thermally actuated overload tripping device | Hisao Kawata, Motohiro Shimizu | 2011-11-22 |
| 7170020 | Circuit breaker and terminal cover | Hisao Kawata, Katsunori Kuboyama | 2007-01-30 |
| 6940374 | Overload/open-phase tripping device for circuit breaker | Katsunori Kuboyama | 2005-09-06 |
| 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 |
| 6310528 | Overcurrent-tripping device for circuit breaker | Katsunori Kuboyama, Naoshi Uchida | 2001-10-30 |
| 5990434 | Switching mechanism for circuit breaker | Takumi Fujihira, Tatunori Takahashi, Naoshi Uchida, Katunori Kuboyama, Hiroaki Tosaka +2 more | 1999-11-23 |
| 5901025 | Circuit breaker | Tatsunori Takahashi, Takumi Fujihira, Naoshi Uchida, Katsunori Kuboyama, Hiroaki Tosaka +2 more | 1999-05-04 |