Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10439514 | Power conversion circuit | Yoh Takano | 2019-10-08 |
| 10211144 | Semiconductor device having a plurality of top surface connection terminals | Junichi Kimura, Ryosuke Usui, Tomohide Ogura, Atsushi Watanabe | 2019-02-19 |
| 10050138 | Nitride semiconductor device | Daisuke Shibata, Kenichiro Tanaka, Masahiro Ishida | 2018-08-14 |
| 9595606 | Field-effect transistor | Kenichiro Tanaka, Masahiro Ishida, Tetsuzo Ueda | 2017-03-14 |
| 9401402 | Nitride semiconductor device and nitride semiconductor substrate | Masahiro Ishida | 2016-07-26 |
| 8422527 | Nitride based semiconductor device and fabrication method for the same | Daisuke Nakagawa, Yoshinori Tanaka, Masahiro Murayama, Takao Fujimori | 2013-04-16 |
| 8405067 | Nitride semiconductor element | Jun Shimizu, Yasuhiro Yamada, Naohide Wakita, Masahiro Ishida | 2013-03-26 |
| 8198639 | Method of manufacturing light emitting device with a pair of ridge protection electrodes | — | 2012-06-12 |
| 8155162 | Nitride semiconductor laser device and method of manufacturing the same | Yuji Ishida | 2012-04-10 |
| 8144743 | Nitride based semiconductor device and fabrication method for the same | Daisuke Nakagawa, Yoshinori Tanaka, Masahiro Murayama, Takao Fujimori | 2012-03-27 |
| 7939429 | Nitride semiconductor device and method of manufacturing the same | — | 2011-05-10 |
| 7885303 | Nitride semiconductor laser device and method of manufacturing the same | Yuji Ishida | 2011-02-08 |
| 7876798 | Nitride semiconductor laser device | — | 2011-01-25 |
| 7792171 | Nitride semiconductor laser device | Daisuke Nakagawa | 2010-09-07 |
| 7566639 | Manufacturing method for nitride semiconductor device and nitride semiconductor light emitting device obtained with the same | — | 2009-07-28 |
| 7550757 | Semiconductor laser and method for manufacturing semiconductor laser | Hiroaki Ohta | 2009-06-23 |
| 7256416 | Semiconductor light emitting device | — | 2007-08-14 |