Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10978367 | Semiconductor device and method for manufacturing the same | Takashi Hasegawa, Kouichi Saitou | 2021-04-13 |
| 10439034 | Semiconductor device and method for manufacturing same | Takashi Hasegawa, Kouichi Saitou | 2019-10-08 |
| 10439027 | Silicon carbide semiconductor device and method for manufacturing the same | — | 2019-10-08 |
| 10283595 | Silicon carbide semiconductor substrate used to form semiconductor epitaxial layer thereon | — | 2019-05-07 |
| 9711353 | Method for manufacturing compound semiconductor epitaxial substrates including heating of carrier gas | — | 2017-07-18 |
| 9543427 | Semiconductor device and method for fabricating the same | Haruyuki Sorada, Tsuneichiro Sano | 2017-01-10 |
| 9362370 | Silicon carbide semiconductor device having nitrogen-containing silicon alloy for ohmic contact to P-type impurity region | Tsutomu Kiyosawa, Takayuki Wakayama | 2016-06-07 |
| 9318600 | Silicon carbide semiconductor device and method for manufacturing same | — | 2016-04-19 |
| 9269765 | Semiconductor device having gate wire disposed on roughened field insulating film | — | 2016-02-23 |
| 9209294 | Semiconductor device and method for manufacturing same | Tsutomu Kiyosawa, Yuki Tomita | 2015-12-08 |
| 9087894 | Semiconductor device and method of manufacturing the device | Tsutomu Kiyosawa | 2015-07-21 |
| 8791002 | Semiconductor device and fabrication method for the same | — | 2014-07-29 |
| 8754422 | Semiconductor device and process for production thereof | Kenya Yamashita, Masahiko Niwayama | 2014-06-17 |
| 8748901 | Silicon carbide semiconductor element | Kunimasa Takahashi, Masahiko Niwayama, Masao Uchida | 2014-06-10 |
| 8748977 | Semiconductor device and method for producing same | — | 2014-06-10 |
| 8729608 | Semiconductor device and method of manufacturing the device | — | 2014-05-20 |
| 8686439 | Silicon carbide semiconductor element | Kunimasa Takahashi, Masahiko Niwayama, Masao Uchida | 2014-04-01 |
| 8653535 | Silicon carbide semiconductor device having a contact region that includes a first region and a second region, and process for production thereof | Masahiko Niwayama, Ryo Ikegami | 2014-02-18 |
| 8530943 | Semiconductor device | Kenya Yamashita | 2013-09-10 |
| 8476733 | Semiconductor element and manufacturing method therefor | Kunimasa Takahashi | 2013-07-02 |
| 7982224 | Semiconductor device with silicon carbide epitaxial layer including dopant profiles for reducing current overconcentration | Osamu Kusumoto, Koichi Hashimoto | 2011-07-19 |
| 7829416 | Silicon carbide semiconductor device and method for producing the same | Kazuya Utsunomiya, Masashi Hayashi | 2010-11-09 |
| 7772098 | Method for manufacturing semiconductor device | Osamu Kusumoto, Kunimasa Takahashi | 2010-08-10 |
| 7718519 | Method for manufacturing silicon carbide semiconductor element | Kunimasa Takahashi | 2010-05-18 |
| 7465996 | Semiconductor device and method for fabricating the same | Yoshihiro Satou | 2008-12-16 |