Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6084785 | Electric power converter | Hideaki Kunisada, Keizo Shimada | 2000-07-04 |
| 5959858 | Electric power conversion apparatus | Akihiko Kanouda, Yoshimi Sakurai, Kenji Kubo, Hideaki Kunisada, Keizo Shimada +1 more | 1999-09-28 |
| 5892674 | Method and apparatus for power converting AC into DC or DC into AC by converter having common phase connection | Keizo Shimada, Hideaki Kunisada | 1999-04-06 |