Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10193305 | Wavelength tunable laser device and laser module | Yasumasa Kawakita, Yasutaka Higa, Tatsuro Kurobe | 2019-01-29 |
| 9960572 | Semiconductor device | Masayuki Iwami, Hirotatsu Ishii, Takeyoshi Matsuda, Akihiko Kasukawa, Takuya Ishikawa +2 more | 2018-05-01 |
| 8929692 | Integrated optical device and manufacturing method of the same | Hirotatsu Ishii | 2015-01-06 |
| 8494022 | Surface emitting laser, surface emitting laser array, light source and optical module | Hitoshi Shimizu, Takeo Kageyama, Keishi Takaki | 2013-07-23 |
| 8488644 | Semiconductor laser element and manufacturing method thereof | Suguru Imai, Keishi Takaki, Kinuka Tanabe, Hitoshi Shimizu, Hirotatsu Ishii | 2013-07-16 |
| 8409998 | Method of manufacturing vertical-cavity surface emitting laser | Kageyama Takeo, Koji Hiraiwa, Yoshihiko Ikenaga | 2013-04-02 |
| 8270447 | Semiconductor light emitting element and manufacturing method thereof | Naoki Tsukiji, Keishi Takaki, Koji Hiraiwa | 2012-09-18 |
| 8204093 | Method of manufacturing vertical-cavity surface emitting laser and vertical-cavity surface emitting laser array | Keishi Takaki, Koji Hiraiwa | 2012-06-19 |
| 8178364 | Testing method of surface-emitting laser device and testing device thereof | Koji Hiraiwa, Takeo Kageyama, Keishi Takaki | 2012-05-15 |
| 8031754 | Surface emitting laser element, surface emitting laser element array, method of fabricating a surface emitting laser element | Takeo Kageyama, Kinuka Tanabe | 2011-10-04 |
| 7974327 | Surface emitting laser element array | Maiko Ariga, Takeo Kageyama, Kazuaki Nishikata | 2011-07-05 |
| 7907653 | Vertical cavity surface emitting laser device and vertical cavity surface emitting laser array | Keishi Takaki, Suguru Imai | 2011-03-15 |
| 7888145 | Method of manufacturing vertical-cavity surface-emitting laser device and vertical-cavity surface-emitting laser device | Keishi Takaki, Hitoshi Shimizu, Takeo Kageyama | 2011-02-15 |
| 7885307 | Vertical-cavity surface-emitting semiconductor laser device | Kinuka Tanabe, Yoshihiko Ikenaga, Takeo Kageyama, Koji Hiraiwa, Hirokazu Yoshikawa | 2011-02-08 |
| 7881359 | Surface-emission semiconductor laser device | Noriyuki Yokouchi | 2011-02-01 |
| 7881353 | Surface emitting laser element array | Takeo Kageyama, Keishi Takaki, Naoki Tsukiji, Hitoshzi Shimizu, Yasumasa Kawakita +1 more | 2011-02-01 |
| 7801198 | Surface emitting laser element and method of fabricating the same | Takeo Kageyama, Yasumasa Kawakita, Keishi Takaki, Peter Nyakas | 2010-09-21 |
| 7778297 | Surface emitting laser element and method of fabricating the same | Takeo Kageyama, Yasumasa Kawakita | 2010-08-17 |
| 7656924 | Surface emitting laser, and transceiver, optical transceiver, and optical communication system employing the surface emitting laser | Hitoshi Shimizu, Setiagung Casimirus, Yasukazu Shiina, Takeshi Hama | 2010-02-02 |
| 7418020 | Surface emitting laser device | Koji Hiraiwa, Takeo Kageyama, Keishi Takaki | 2008-08-26 |
| 7368316 | Surface-emission semiconductor laser device | Noriyuki Yokouchi | 2008-05-06 |
| 7215693 | Surface emitting semiconductor laser device | Tatsuyuki Shinagawa, Noriyuki Yokouchi | 2007-05-08 |
| 7061954 | Semiconductor optical waveguide structure | Kazuaki Nishikata, Akihiko Kasukawa | 2006-06-13 |
| 6914925 | Vertical cavity surface emitting semiconductor laser device | Tatsuyuki Shinagawa, Noriyuki Yokouchi | 2005-07-05 |
| 6900475 | Surface-emission semiconductor laser device | Noriyuki Yokouchi | 2005-05-31 |