Issued Patents All Time
Showing 1–25 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9960572 | Semiconductor device | Masayuki Iwami, Hirotatsu Ishii, Norihiro Iwai, Takeyoshi Matsuda, Takuya Ishikawa +2 more | 2018-05-01 |
| 8385379 | Optical semiconductor device and pumping light source for optical fiber amplifier | Junji Yoshida, Naoki Tsukiji, Hidehiro Taniguchi, Satoshi Irino, Hirokazu Itoh +2 more | 2013-02-26 |
| 8222639 | Nitride based semiconductor device and method of manufacturing the same | Tatsuyuki Shinagawa, Hirotatsu Ishii | 2012-07-17 |
| 8222658 | Semiconductor light emitting element and method of manufacturing therefor | Tatsuyuki Shinagawa, Hirotatsu Ishii | 2012-07-17 |
| 7564563 | Laser gyro and electronic device using the same | Noriyuki Yokouchi, Junji Yoshida, Takahisa Harayama, Takehiro Fukushima, Shuichi Tamura +2 more | 2009-07-21 |
| 7453100 | DFB laser assembly and laser module | Masaki Funabashi, Ryosuke Yatsu | 2008-11-18 |
| 7072373 | Ridge waveguide semiconductor laser diode | Michio Ohkubo, Yoshikazu Ikegami, Takeshi Namegaya, Junji Yoshida | 2006-07-04 |
| 7061954 | Semiconductor optical waveguide structure | Norihiro Iwai, Kazuaki Nishikata | 2006-06-13 |
| 6911713 | Optical device having a carrier-depleted layer | Nariaki Ikeda, Takeharu Yamaguchi, Satoshi Arakawa, Nobumitsu Yamanaka, Ryusuke Nakasaki | 2005-06-28 |
| 6829277 | Distributed feedback semiconductor laser device and laser module | Ryosuke Yatsu, Masaki Funabashi | 2004-12-07 |
| 6810063 | Semiconductor laser device | Toshikazu Mukaihara, Takeharu Yamaguchi | 2004-10-26 |
| 6782022 | Semiconductor laser device having improved output power characteristics | Masaki Funabashi, Ryosuke Yatsu | 2004-08-24 |
| 6737290 | Surface-emitting semiconductor laser device and method for fabricating the same, and surface-emitting semiconductor laser array employing the laser device | Toshikazu Mukaihara, Noriyuki Yokouchi | 2004-05-18 |
| 6738405 | Semiconductor laser | Takeharu Yamaguchi, Toshikazu Mukaihara | 2004-05-18 |
| 6731663 | Ridge waveguide type semiconductor laser device | Takeshi Namegaya | 2004-05-04 |
| 6704342 | Gain-coupled distributed-feedback semiconductor laser device | Masaki Funabashi | 2004-03-09 |
| 6690701 | Semiconductor laser device | Mikihiro Yokozeki | 2004-02-10 |
| 6674783 | Distributed feedback type semiconductor laser device and method of manufacturing the same | Masaki Funabashi | 2004-01-06 |
| 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 |