Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5354352 | Contact material for vacuum circuit breakers | Tsutomu Okutomi, Atsushi Yamamoto, Mikio Okawa, Kiyofumi Otobe | 1994-10-11 |
| 5294761 | Vacuum interrupter | Tsutomu Okutomi, Hideo Suzuki, Shinzo Sugai, Kazuya Tujimoto, Hiroshi Watanabe +3 more | 1994-03-15 |