Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5237208 | Apparatus for parallel operation of triport uninterruptable power source devices | Yasuhiro Kawata, Hidehiro Koike | 1993-08-17 |
| 4893069 | Ferroresonant three-phase constant AC voltage transformer arrangement with compensation for unbalanced loads | Kosuke Harada, Akihiko Katsuki | 1990-01-09 |
| 4862059 | Ferroresonant constant AC voltage transformer | Mitsuo Iwanaga, Hiromichi Yokomizo | 1989-08-29 |