Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624579 | Magnetron drive power supply | Kenji Yasui, Takeshi Kitaizumi, Yoshiaki Ishio, Hideki Omori, Kazuho Sakamoto +4 more | 2003-09-23 |
| 6624401 | Magnetron drive power supply | Takeshi Kitaizumi, Hideaki Moriya, Emiko Ishizaki | 2003-09-23 |
| 6388899 | Inverter circuit | Yoshiaki Ishio, Kenji Yasui | 2002-05-14 |
| 6362463 | High frequency heating apparatus | Daisuke Bessyo, Kenji Yasui, Kazuho Sakamoto, Makoto Mihara, Shinichi Sakai +4 more | 2002-03-26 |
| 5977530 | Switching power supply for high frequency heating apparatus | Daisuke Bessho, Kenji Yasui, Yoshiaki Ishio, Hideki Omori, Makoto Mihara +1 more | 1999-11-02 |
| 4999762 | High voltage power source device | Kazuho Sakamoto, Takashi Niwa, Takahiro Matsumoto | 1991-03-12 |
| 4967051 | High-frequency heating apparatus having start control device for magnetron power supply circuit | Naoyoshi Maehara, Kazuho Sakamoto, Takashi Niwa, Kimiaki Yamaguchi, Takahiro Matsumoto | 1990-10-30 |
| 4900989 | Magnetron feeding apparatus and method of controlling the same | Naoyoshi Maehara, Kazuho Sakamoto, Takahiro Matsumoto, Takashi Niwa, Daisuke Bessyo | 1990-02-13 |
| 4888461 | High-frequency heating apparatus | Teruhisa Takano, Hitoshi Kurita, Yasuteru Fujii, Masashi Yano | 1989-12-19 |
| 4886951 | Power supply for a magnetron having a rectifying circuit, switching circuit, and transformer | Takahiro Matsumoto, Naoyoshi Maehara, Kazuho Sakamoto, Takashi Niwa, Daisuke Bessyo +2 more | 1989-12-12 |