Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11935744 | Method for manufacturing nitride semiconductor device | Ken Nakata | 2024-03-19 |
| 10622470 | Process of forming nitride semiconductor device | — | 2020-04-14 |
| 10505013 | Process of forming epitaxial substrate having N-polar gallium nitride | — | 2019-12-10 |
| 10038086 | Process for forming a high electron mobility transistor | Ken Nakata, Tsuyoshi Kouchi, Keiichi Yui | 2018-07-31 |
| 9355843 | Semiconductor device and method of manufacturing the same | Keiichi Yui, Ken Nakata, Tsuyoshi Kouchi | 2016-05-31 |
| 9123534 | Semiconductor device and method of manufacturing the same | Keiichi Yui, Ken Nakata, Tsuyoshi Kouchi | 2015-09-01 |
| 9029873 | Semiconductor device including an aluminum nitride layer having a calculated area-averaged circularity and a method of manufacturing the device | Ken Nakata, Keiichi Yui, Tsuyoshi Kouchi, Hiroyuki Ichikawa | 2015-05-12 |
| 8993416 | Method of manufacturing semiconductor device | Keiichi Yui, Ken Nakata, Hiroyuki Ichikawa | 2015-03-31 |
| 8987015 | Method for fabricating semiconductor device | Keiichi Yui, Akira Furuya, Ken Nakata, Takamitsu Kitamura | 2015-03-24 |
| 8754419 | Semiconductor device | Ken Nakata, Keiichi Yui, Takamitsu Kitamura | 2014-06-17 |
| 8742426 | Semiconductor device | Ken Nakata, Keiichi Yui | 2014-06-03 |
| 8648389 | Semiconductor device with spacer layer between carrier traveling layer and carrier supplying layer | — | 2014-02-11 |
| 8629479 | Semiconductor device | Ken Nakata, Keiichi Yui | 2014-01-14 |
| 8546813 | Semiconductor substrate and semiconductor device | Keiichi Yui, Ken Nakata, Takamitsu Kitamura | 2013-10-01 |
| 8283240 | Method for fabricating semiconductor device | Keiichi Yui, Ken Nakata, Takamitsu Kitamura, Akira Furuya | 2012-10-09 |
| 8247796 | Semiconductor device | Ken Nakata | 2012-08-21 |
| 8232557 | Semiconductor substrate with AlGaN formed thereon and semiconductor device using the same | Ken Nakata | 2012-07-31 |
| 7947578 | Method for fabricating semiconductor device | Ken Nakata, Tsuyoshi Kouichi | 2011-05-24 |