Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10879376 | Method for manufacturing semiconductor device | Takaki Niwa, Takahiro Fujii | 2020-12-29 |
| 10636663 | Method of manufacturing semiconductor device including implanting impurities into an implanted region of a semiconductor layer and annealing the implanted region | Takahiro Fujii, Takaki Niwa | 2020-04-28 |
| 10510833 | Method for manufacturing semiconductor device | Takaki Niwa, Takahiro Fujii | 2019-12-17 |
| 10332754 | Method of manufacturing nitride semiconductor device | Takaki Niwa, Takahiro Fujii, Tohru Oka | 2019-06-25 |
| 10083918 | Manufacturing method of semiconductor device | Takahiro Fujii, Takaki Niwa | 2018-09-25 |
| 10026851 | MPS diode | Takaki Niwa, Takahiro Fujii, Tohru Oka | 2018-07-17 |
| 9905432 | Semiconductor device, method for manufacturing the same and power converter | Takaki Niwa, Tohru Oka, Takahiro Fujii, Yukihisa Ueno | 2018-02-27 |
| 9852925 | Method of manufacturing semiconductor device | Takahiro Fujii, Takaki Niwa | 2017-12-26 |
| 9704952 | Semiconductor device and method for manufacturing semiconductor device | Takaki Niwa, Takahiro Fujii, Tohru Oka, Yukihisa Ueno | 2017-07-11 |
| 9269778 | Semiconductor apparatus including N-type semiconductor layer | Takahiro Fujii | 2016-02-23 |
| 8420516 | Method for producing n-type group III nitride semiconductor | Hiroshi Miwa | 2013-04-16 |
| 7981744 | Field-effect transistor, semiconductor device, a method for manufacturing them, and a method of semiconductor crystal growth | Koji Hirata, Masanobu Senda, Naoki Shibata | 2011-07-19 |
| 7750351 | Epitaxial substrate for field effect transistor | Hiroyuki Sazawa, Koji Hirata, Hajime Okumura | 2010-07-06 |
| 7554132 | Electronic device containing group-III element based nitride semiconductors | Koji Hirata | 2009-06-30 |
| 7432538 | Field-effect transistor | Koji Hirata | 2008-10-07 |