Issued Patents All Time
Showing 51–71 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7088594 | Resonant converter and control method thereof | Takashi Sase, Tetsuya Nagayama, Tadahiko Hashimoto | 2006-08-08 |
| 7049711 | Uninterruptible power system | Fumikazu Takahashi, Minehiro Nemoto, Masahiro Hamaogi | 2006-05-23 |
| 6977448 | Backup power supply | Satoru Masuyama, Masato Isogai, Ryouhei Saga, Kenichi Onda, Norikazu Tokunaga | 2005-12-20 |
| 6879137 | Power-supply device | Takashi Sase, Koji Tateno, Katsunori Hayashi, Shinichi Yoshida | 2005-04-12 |
| 6798180 | Power-supply device | Takashi Sase, Koji Tateno, Katsunori Hayashi, Shinichi Yoshida | 2004-09-28 |
| 6603671 | Synchronized rectifier voltage step down DC-DC converter and control circuit therefor | Norikazu Tokunaga, Kenichi Onda, Takeshi Onaka, Ryouhei Saga | 2003-08-05 |
| 6580597 | Voltage regulator module for micro processor and CPO using a super capacitor | Kenichi Onda, Norikazu Tokunaga, Mikiya Nohara, Ryouhei Saga, Morinobu Endo | 2003-06-17 |
| 6567261 | DC-DC step-down converter with super capacitor | Kenichi Onda, Norikazu Tokunaga, Mikiya Nohara, Ryouhei Saga, Morinobu Endo | 2003-05-20 |
| 6489756 | DC-DC converter with switchable control mode | Kenichi Onda, Norikazu Tokunaga, Ryouhei Saga | 2002-12-03 |
| 5959858 | Electric power conversion apparatus | Yoshimi Sakurai, Kenji Kubo, Hideyasu Umetsu, Hideaki Kunisada, Keizo Shimada +1 more | 1999-09-28 |
| 5768117 | Power supply system for supplying electric power to a load through plural converters | Tadashi Takahashi, Kenichi Onda, Masayoshi Sato, Hideaki Horie, Katsunori Hayashi | 1998-06-16 |
| 5642269 | Power supply apparatus having separate plural outputs | Tadashi Takahashi, Kazuhiro Takizawa, Tetsuya Obara, Makoto Kawamura, Masami Joraku +1 more | 1997-06-24 |
| 5638264 | Parallelized power supply system providing uninterrupted operation | Katsunori Hayashi, Tadashi Takahashi, Hideaki Horie, Kenichi Onda, Yasuo Abe +1 more | 1997-06-10 |
| 5610449 | Electric power unit | Tadashi Takahashi, Kazuhiro Takizawa, Tetsunosuke Nakamura, Masami Joraku | 1997-03-11 |
| 5559682 | Multi-output DC-DC convertor | Tadashi Takahashi, Hideaki Horie, Kenichi Onda, Syuya Hagiwara | 1996-09-24 |
| 5502430 | Flat transformer and power supply unit having flat transformer | Tadashi Takahashi, Kenichi Onda, Hideaki Horie, Syuya Hagiwara, Noriyuki Uchiyama +1 more | 1996-03-26 |
| 5412558 | Semiconductor integrated circuit unit | Naoki Sakurai, Mutsuhiro Mori, Hidetoshi Arakawa, Kenichi Onda, Hideki Miyazaki | 1995-05-02 |
| 5280228 | Inverter circuit | Hideki Miyazaki, Kouzou Watanabe, Kenichi Onda | 1994-01-18 |
| 5253156 | Semiconductor integrated circuit unit | Naoki Sakurai, Mutsuhiro Mori, Hidetoshi Arakawa, Kenichi Onda, Hideki Miyazaki | 1993-10-12 |
| 5057721 | Level shift circuit for controlling a driving circuit | Hideki Miyazaki, Kozo Watanabe, Kenichi Onda, Yasuo Matsuda | 1991-10-15 |
| 5008586 | Solid state current sensing circuit and protection circuit | Hideki Miyazaki, Kenichi Onda, Yasuo Matsuda | 1991-04-16 |