Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6778417 | Electric-power supplying devices switching between a synchronous rectification and a diode rectification by gradually altering a switching pulse | Kazuhiko Itakura, Hiroshi Shimamori, Tsunehiro Ohno | 2004-08-17 |
| 6169675 | DC/DC converter with improved operation of plural parallel synchronous rectifiers | Hiroshi Shimamori, Shigeharu Yamashita | 2001-01-02 |
| 6040987 | DC-DC converter unit | Kenji Kudo, Kohji Kuwabara, Shigeharu Yamashita, Norikazu Katsuyama | 2000-03-21 |
| 5726869 | Synchronous rectifier type DC-to-DC converter in which a saturable inductive device is connected in series with a secondary-side switching device | Shigeharu Yamashita, Tetsuya Yamamoto, Shinichi Otsu, Hiroshi Shimamori, Sentarou Tokimi | 1998-03-10 |