Issued Patents 2003
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661828 | Semiconductor laser device | Masaki Funabashi, Ryosuke Yatsu | 2003-12-09 |
| 6643315 | Distributed feedback semiconductor laser device and multi-wavelength laser array | Norihiro Iwai, Masaki Funabashi | 2003-11-04 |
| 6618417 | Ridge waveguide semiconductor laser diode | Michio Ohkubo, Yoshikazu Ikegami, Takeshi Namegaya | 2003-09-09 |
| 6603138 | Quantum-confinement stark effect optical modulator | Satoshi Arakawa | 2003-08-05 |
| 6580740 | Semiconductor laser device having selective absorption qualities | Masaki Funabashi, Ryosuke Yatsu | 2003-06-17 |
| 6560260 | Ridge waveguide semiconductor laser diode | Michio Ohkubo, Yoshikazu Ikegami, Takeshi Namegaya | 2003-05-06 |
| 6545296 | Semiconductor light emitting device | Toshikazu Mukaihara, Takeharu Yamaguchi | 2003-04-08 |
| 6528337 | Process of producing semiconductor layer structure | Satoshi Arakawa, Toshikazu Mukaihara, Nobumitsu Yamanaka | 2003-03-04 |