Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9653589 | Semiconductor multi-layer substrate, semiconductor device, and method for manufacturing the same | Kazuyuki UMENO, Keishi Takaki, Ryosuke Tamura, Shinya Ootomo | 2017-05-16 |
| 9276066 | Semiconductor multi-layer substrate and semiconductor element | Ryosuke Tamura, Kazuyuki UMENO, Keishi Takaki, Ryohei Makino, Jiang Li | 2016-03-01 |
| 8884393 | Nitride compound semiconductor device and manufacturing method thereof | Takuya Kokawa, Masayuki Iwami, Kazuyuki UMENO, Sadahiro Kato | 2014-11-11 |
| 8222639 | Nitride based semiconductor device and method of manufacturing the same | Hirotatsu Ishii, Akihiko Kasukawa | 2012-07-17 |
| 8222658 | Semiconductor light emitting element and method of manufacturing therefor | Hirotatsu Ishii, Akihiko Kasukawa | 2012-07-17 |
| 8093626 | Normally-off field effect transistor using III-nitride semiconductor and method for manufacturing such transistor | Yuki Niiyama, Shinya Ootomo, Takehiko Nomura, Seikoh Yoshida, Hiroshi Kambayashi | 2012-01-10 |
| 7215693 | Surface emitting semiconductor laser device | Norihiro Iwai, Noriyuki Yokouchi | 2007-05-08 |
| 6914925 | Vertical cavity surface emitting semiconductor laser device | Norihiro Iwai, Noriyuki Yokouchi | 2005-07-05 |
| 6839369 | Surface emitting semiconductor laser device | Norihiro Iwai, Noriyuki Yokouchi | 2005-01-04 |
| 6829274 | Surface emitting semiconductor laser device | Natsumi Ueda, Noriyuki Yokouchi | 2004-12-07 |
| 6700914 | Vertical cavity surface emitting laser device | Noriyuki Yokouchi, Masato Tachibana, Natsumi Ueda | 2004-03-02 |
| 6636543 | Semiconductor device and surface emitting semiconductor laser device | Norihiro Iwai, Noriyuki Yokouchi | 2003-10-21 |