Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8508258 | Driver circuit for switching device | Katsumi Ishikawa, Sunao Funakoshi, Hidekatsu Onose | 2013-08-13 |
| 7952339 | Semiconductor circuit | — | 2011-05-31 |
| 7671462 | Power semiconductor device | Toshiaki Ishii | 2010-03-02 |
| 7557637 | Semiconductor circuit | — | 2009-07-07 |
| 7514780 | Power semiconductor device | Toshiaki Ishii | 2009-04-07 |
| 7019362 | Power MOSFET with reduced dgate resistance | Takayuki Iwasaki, Masaki Shiraishi | 2006-03-28 |
| 7005834 | Synchronous rectifier circuit and power supply | Takayuki Iwasaki, Masaki Shiraishi, Nobuyoshi Matsuura, Tomoaki Uno | 2006-02-28 |
| 6842346 | Semiconductor device | Kyouichi Takagawa, Nobuyoshi Matsuura, Masashi Koyano | 2005-01-11 |
| 6700793 | Semiconductor device | Kyouichi Takagawa, Nobuyoshi Matsuura, Masashi Koyano | 2004-03-02 |
| 6498368 | Power semiconductor device | Yosuke Inoue, Akihiro Miyauchi, Masaki Shiraishi, Mutsuhiro Mori, Atsuo Watanabe +1 more | 2002-12-24 |
| 6385025 | Insulated gate type semiconductor apparatus with a control circuit | Isao Yoshida | 2002-05-07 |
| 6323518 | Insulated gate type semiconductor device and method of manufacturing thereof | Yoshito Nakazawa, Eiji Yanokura | 2001-11-27 |
| 6245455 | Sodium-sulfur secondary battery | Kazushige Kohno, Seizi Koike, Toshiya Doi, Tomoichi Kamo, Masaru Kadoshima +1 more | 2001-06-12 |
| 6201677 | Insulated gate type semiconductor apparatus with a control circuit | Isao Yoshida | 2001-03-13 |
| 6057998 | Insulated gate type semiconductor apparatus with a control circuit | Isao Yoshida | 2000-05-02 |
| 5903034 | Semiconductor circuit device having an insulated gate type transistor | Isao Yoshida | 1999-05-11 |
| 5642252 | Insulated gate semiconductor device and driving circuit device and electronic system both using the same | Isao Yoshida, Shigeo Otaka, Tetsuo Iijima, Harutora Shono, Ken Uchid +2 more | 1997-06-24 |
| 5638246 | Semiconductor device having a protection circuit, and electronic system including the same | Isao Yoshida, Masatoshi Morikawa, Shigeo Ohtaka, Hideki Tsunoda | 1997-06-10 |
| 5629542 | Compounded power MOSFET | Shigeo Otaka, Kyouichi Takagawa | 1997-05-13 |