Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10879376 | Method for manufacturing semiconductor device | Takahiro Fujii, Masayoshi Kosaki | 2020-12-29 |
| 10777674 | Semiconductor device | Toru Oka | 2020-09-15 |
| 10636663 | Method of manufacturing semiconductor device including implanting impurities into an implanted region of a semiconductor layer and annealing the implanted region | Takahiro Fujii, Masayoshi Kosaki | 2020-04-28 |
| 10510833 | Method for manufacturing semiconductor device | Takahiro Fujii, Masayoshi Kosaki | 2019-12-17 |
| 10332966 | Semiconductor device, method of manufacturing the same and power converter | Takahiro Fujii | 2019-06-25 |
| 10332754 | Method of manufacturing nitride semiconductor device | Takahiro Fujii, Masayoshi Kosaki, Tohru Oka | 2019-06-25 |
| 10083918 | Manufacturing method of semiconductor device | Takahiro Fujii, Masayoshi Kosaki | 2018-09-25 |
| 10026851 | MPS diode | Takahiro Fujii, Masayoshi Kosaki, Tohru Oka | 2018-07-17 |
| 9905432 | Semiconductor device, method for manufacturing the same and power converter | Tohru Oka, Masayoshi Kosaki, Takahiro Fujii, Yukihisa Ueno | 2018-02-27 |
| 9852925 | Method of manufacturing semiconductor device | Takahiro Fujii, Masayoshi Kosaki | 2017-12-26 |
| 9704952 | Semiconductor device and method for manufacturing semiconductor device | Masayoshi Kosaki, Takahiro Fujii, Tohru Oka, Yukihisa Ueno | 2017-07-11 |
| 7834461 | Semiconductor apparatus | Shuji Asai, Tadachika Hidaka, Naoto Kurosawa, Hirokazu Oikawa | 2010-11-16 |
| 7821037 | Heterojunction bipolar transistor | Naoto Kurosawa | 2010-10-26 |
| 7304333 | Semiconductor device | — | 2007-12-04 |
| 7038244 | Semiconductor device and method of manufacturing the same | Takashi Ishigaki, Naoto Kurosawa, Hidenori Shimawaki | 2006-05-02 |
| 6881988 | Heterojunction bipolar transistor and semiconductor integrated circuit device using the same | Hidenori Shimawaki, Koji Azuma, Naoto Kurosawa | 2005-04-19 |
| 6355947 | Heterojunction bipolar transistor with band gap graded emitter | — | 2002-03-12 |
| 5959317 | High frequency hetero junction type field effect transistor using multilayer electron feed layer | — | 1999-09-28 |