Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886951 | Power supply for a magnetron having a rectifying circuit, switching circuit, and transformer | Takahiro Matsumoto, Haruo Suenaga, Kazuho Sakamoto, Takashi Niwa, Daisuke Bessyo +2 more | 1989-12-12 |
| 4851629 | High-frequency heating device | Daisuke Bessyo, Kazuho Sakamoto, Shigeru Kusunoki, Takahiro Matsumoto | 1989-07-25 |
| 4812960 | Power feeding apparatus | Kazuho Sakamoto, Takao Shitaya, Shigeru Kusunoki, Takashi Niwa, Takahiro Matsumoto +1 more | 1989-03-14 |