Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5446645 | Inverter apparatus and uinterruptible power supply using the same | Hidefumi Shirahama, Yorito Jifuku, Akira Kobayashi, Keizo Shimada, Norikazu Tokunaga +3 more | 1995-08-29 |
| 4502286 | Constant pressure type boiling cooling system | Sadayuki Okada, Hisao Sonobe | 1985-03-05 |