Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5274205 | Gas blast, puffer type circuit breaker with improved nozzle | Masanori Tsukushi, Akira Hashimoto, Yukio Kurosawa, Kunio Hirasawa, Fumihiro Endo +1 more | 1993-12-28 |
| 5153518 | Synthetic equivalent test circuit of circuit breaker | Isao Takahashi, Yukio Kurosawa, Kastuichi Kashimura, Kunio Hirasawa | 1992-10-06 |