Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8409998 | Method of manufacturing vertical-cavity surface emitting laser | Kageyama Takeo, Norihiro Iwai, Yoshihiko Ikenaga | 2013-04-02 |
| 8270447 | Semiconductor light emitting element and manufacturing method thereof | Naoki Tsukiji, Norihiro Iwai, Keishi Takaki | 2012-09-18 |
| 8204093 | Method of manufacturing vertical-cavity surface emitting laser and vertical-cavity surface emitting laser array | Keishi Takaki, Norihiro Iwai | 2012-06-19 |
| 8178364 | Testing method of surface-emitting laser device and testing device thereof | Takeo Kageyama, Norihiro Iwai, Keishi Takaki | 2012-05-15 |
| 7885307 | Vertical-cavity surface-emitting semiconductor laser device | Kinuka Tanabe, Yoshihiko Ikenaga, Norihiro Iwai, Takeo Kageyama, Hirokazu Yoshikawa | 2011-02-08 |
| 7418020 | Surface emitting laser device | Takeo Kageyama, Norihiro Iwai, Keishi Takaki | 2008-08-26 |
| 6177710 | Semiconductor waveguide type photodetector and method for manufacturing the same | Kazuaki Nishikata | 2001-01-23 |