Issued Patents All Time
Showing 25 most recent of 70 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9263267 | Silicon carbide semiconductor device and method of manufacturing the same | Jun Kawai, Kazuhiko Sugiura | 2016-02-16 |
| 9240445 | Lateral semiconductor device | Takashi Suzuki, Satoshi Shiraki, Shigeki Takahashi, Youichi Ashida, Akira Yamada | 2016-01-19 |
| 9214536 | Lateral insulated gate bipolar transistor | Shigeki Takahashi, Satoshi Shiraki, Youichi Ashida, Akio Nakagawa | 2015-12-15 |
| 8941122 | Silicon carbide semiconductor device and method of manufacturing the same | Jun Kawai, Kazuhiko Sugiura | 2015-01-27 |
| 8854033 | Current sensor, inverter circuit, and semiconductor device having the same | Satoshi Shiraki, Shigeki Takahashi, Masahiro Yamamoto, Akira Yamada, Hiroyasu Kudo +2 more | 2014-10-07 |
| 8742534 | Semiconductor device having lateral diode | Takao Yamamoto, Hisato Kato, Akio Nakagawa | 2014-06-03 |
| 8604513 | Semiconductor device having SOI substrate | Youichi Ashida, Shigeki Takahashi, Yoshiaki Nakayama, Satoshi Shiraki, Kouji Senda | 2013-12-10 |
| 8476673 | Diode | Satoshi Shiraki, Shigeki Takahashi, Shinya Sakurai, Takashi Suzuki | 2013-07-02 |
| 8354691 | Lateral insulated-gate bipolar transistor | Shigeki Takahashi, Youichi Ashida, Akio Nakagawa | 2013-01-15 |
| 8179106 | DC-DC converter | Hisato Kato, Norikazu Kanatake, Masakiyo Horie | 2012-05-15 |
| 8102025 | Semiconductor device having IGBT and diode | Yoshihiko Ozeki, Yukio Tsuzuki | 2012-01-24 |
| 8076718 | Insulated gate semiconductor device and method for producing the same | Hidefumi Takaya, Kimimori Hamada, Kyosuke Miyagi, Yasushi Okura, Akira Kuroyanagi | 2011-12-13 |
| 7692214 | Semiconductor device having IGBT cell and diode cell and method for designing the same | Yukio Tsuzuki, Kenji Kouno | 2010-04-06 |
| 7667269 | Trench gate type semiconductor device | Yukio Tsuzuki, Yoshihiko Ozeki, Kensaku Yamamoto | 2010-02-23 |
| 7616859 | Semiconductor device | Hiroki Sone, Shinji Amano, Hisato Kato | 2009-11-10 |
| 7586151 | Insulated gate semiconductor device | Hidefumi Takaya, Yasushi Okura, Akira Kuroyanagi | 2009-09-08 |
| 7498634 | Semiconductor device having IGBT and diode | Yukio Tsuzuki | 2009-03-03 |
| 7470953 | Insulated gate type semiconductor device and manufacturing method thereof | Hidefumi Takaya, Kimimori Hamada, Akira Kuroyanagi, Yasushi Okura | 2008-12-30 |
| 7456484 | Semiconductor device having IGBT and diode | Yoshihiko Ozeki, Yukio Tsuzuki | 2008-11-25 |
| 6982459 | Semiconductor device having a vertical type semiconductor element | Takashi Suzuki, Tsutomu Uesugi | 2006-01-03 |
| 6765266 | Semiconductor device with peripheral portion for withstanding surge voltage | Yoshihiko Ozeki, Yutaka Tomatsu, Haruo Kawakita | 2004-07-20 |
| 6639260 | Semiconductor device having a vertical semiconductor element | Takashi Suzuki, Tsutomu Uesugi | 2003-10-28 |
| 6603173 | Vertical type MOSFET | Yoshifumi Okabe, Yoshihiko Ozeki, Shigeki Takahashi | 2003-08-05 |
| 6448645 | Semiconductor device | Tomonori Kimura, Fumio Ohara, Masahito Mizukoshi | 2002-09-10 |
| 6384431 | Insulated gate bipolar transistor | Shigeki Takahashi, Takanori Teshima, Naohiko Hirano | 2002-05-07 |