Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10033154 | Semiconductor optical element, semiconductor laser element, and method for manufacturing semiconductor optical element and semiconductor laser element, and method for manufacturing semiconductor laser module and semiconductor element | Kouhei Kinugawa, Hidehiro Taniguchi, Masafumi Tajima, Hirotatsu Ishii | 2018-07-24 |
| 9478944 | Semiconductor laser element and method of manufacturing semiconductor laser element | Hidehiro Taniguchi, Hirotatsu Ishii | 2016-10-25 |
| 8842707 | Semiconductor laser element and method of manufacturing semiconductor laser element | Hidehiro Taniguchi, Hirotatsu Ishii | 2014-09-23 |
| 8030224 | Manufacturing method of semiconductor device, semiconductor device, communication apparatus, and semiconductor laser | Hidehiro Taniguchi, Etsuji Katayama | 2011-10-04 |
| 7072373 | Ridge waveguide semiconductor laser diode | Michio Ohkubo, Yoshikazu Ikegami, Akihiko Kasukawa, Junji Yoshida | 2006-07-04 |
| 6731663 | Ridge waveguide type semiconductor laser device | Akihiko Kasukawa | 2004-05-04 |
| 6618417 | Ridge waveguide semiconductor laser diode | Michio Ohkubo, Yoshikazu Ikegami, Akihiko Kasukawa | 2003-09-09 |
| 6560260 | Ridge waveguide semiconductor laser diode | Michio Ohkubo, Yoshikazu Ikegami, Akihiko Kasukawa | 2003-05-06 |
| 5327445 | Quantum-well type semiconductor laser device | Narihito Matsumoto, Akihiko Kasukawa, Hiroshi Okamoto | 1994-07-05 |