Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691521 | Vacuum circuit breaker with improved contact assembly | Katsuhiro Komuro, Yoshitaka Kojima, Yukio Kurosawa, Tooru Tanimizu, Yoshimi Hakamata +1 more | 1997-11-25 |
| 5379014 | Vacuum circuit breaker | Takashi Sato, Yukio Kurosawa, Kouji Suzuki, Akira Hashimoto | 1995-01-03 |