Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9024330 | Semiconductor device and manufacturing method thereof | Yukihiko Watanabe, Sachiko Aoi, Masahiro Sugimoto, Shinichiro Miyahara | 2015-05-05 |
| 8952449 | Semiconductor device having both IGBT area and diode area | Masaki Koyama, Yasushi Ookura, Tatsuji Nagaoka, Takahide Sugiyama, Sachiko Aoi +1 more | 2015-02-10 |
| 8723220 | Semiconductor device | — | 2014-05-13 |
| 8716746 | Semiconductor device | Masaki Koyama, Yasushi Ookura, Tatsuji Nagaoka, Takahide Sugiyama, Sachiko Aoi +1 more | 2014-05-06 |
| 8686467 | Semiconductor device comprising semiconductor substrate and having diode region and IGBT region | Shinya Iwasaki | 2014-04-01 |
| 8531857 | Power supply device and method for driving the same | Jun Saito, Gehan Anil Joseph Amaratunga, Florin Udrea | 2013-09-10 |
| 8471291 | Semiconductor device | — | 2013-06-25 |
| 8384211 | Semiconductor apparatus with improved efficiency of thermal radiation | — | 2013-02-26 |
| 8362519 | Semiconductor device | — | 2013-01-29 |
| 8330185 | Semiconductor device having semiconductor substrate including diode region and IGBT region | — | 2012-12-11 |
| 8299496 | Semiconductor device having semiconductor substrate including diode region and IGBT region | Tatsuji Nagaoka | 2012-10-30 |
| 8248116 | Method of driving reverse conducting semiconductor device, semiconductor device and power supply device | Jun Saito | 2012-08-21 |
| 7952143 | Semiconductor device having IGBT and diode | Yukihiro Hisanaga | 2011-05-31 |