Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6888728 | Switching power supply unit | Junichi Yamamoto, Katsuhiko Shimizu, Toshiyuki Zaitsu | 2005-05-03 |
| 6687143 | Rectifying circuit and switching power supply device having the same | Junichi Yamamoto, Masahiro Gamou, Katsuhiko Shimizu | 2004-02-03 |
| 6683797 | Multi-stage DC—DC converter | Toshiyuki Zaitsu | 2004-01-27 |
| 6650552 | Switching power supply unit with series connected converter circuits | Junichi Yamamoto, Katsuhiko Shimizu, Toshiyuki Zaitsu | 2003-11-18 |
| 5999420 | Switching power source | Kenichi Aonuma | 1999-12-07 |