Issued Patents All Time
Showing 26–50 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7846820 | Nitride semiconductor device and process for producing the same | Akihiko Ishibashi, Toshiya Yokogawa, Toshitaka Shimamoto, Yasutoshi Kawaguchi, Isao Kidoguchi | 2010-12-07 |
| 7816696 | Nitride semiconductor device and method for manufacturing same | Gaku Sugahara, Naomi Anzue, Akihiko Ishibashi, Toshiya Yokogawa | 2010-10-19 |
| 7759684 | Nitride semiconductor light emitting device and method for fabricating the same | Atsunori Mochida | 2010-07-20 |
| 7738525 | Semiconductor laser and method for fabricating the same | Daisuke Ueda, Masaaki Yuri, Kenichi Matsuda | 2010-06-15 |
| 7704860 | Nitride-based semiconductor device and method for fabricating the same | Toshitaka Shimamoto, Yasutoshi Kawaguchi, Akihiko Ishibashi, Isao Kidoguchi, Toshiya Yokogawa | 2010-04-27 |
| 7653099 | Semiconductor laser device which is capable of stably emitting short-wavelength laser light | Toshiya Yokogawa, Hiroyoshi Yajima | 2010-01-26 |
| 7622749 | Semiconductor light-emitting element and method for fabricating the same | Toshiya Yokogawa, Atsushi Yamada | 2009-11-24 |
| 7606276 | Nitride semiconductor device and method for fabricating the same | Akihiko Ishibashi, Toshiya Yokogawa | 2009-10-20 |
| 7501667 | Nitride semiconductor light-emitting device | Toshiya Yokogawa, Akihiko Ishibashi | 2009-03-10 |
| 7407421 | Light source, optical pickup, and electronic apparatus | Isao Kidoguchi, Yasuo Kitaoka, Hiroyoshi Yajima, Keiji Ito, Akihiko Ishibashi +1 more | 2008-08-05 |
| 7396697 | Semiconductor light-emitting device and method for manufacturing the same | Toshiya Yokogawa, Atsushi Yamada | 2008-07-08 |
| 7366508 | Radio access point testing method and testing apparatus | Shinya Oota, Yoshihiro Kanomata, Arata Nakagoshi | 2008-04-29 |
| 7353020 | Radio access point testing apparatus and method of testing radio access point | Akihiro Saitou, Masao Yamaya | 2008-04-01 |
| 7221690 | Semiconductor laser and process for manufacturing the same | Toshiya Yokogawa | 2007-05-22 |
| 7160748 | Method for fabricating nitride semiconductor, method for fabricating nitride semiconductor device, and nitride semiconductor device | Akihiko Ishibashi, Ayumu Tsujimura, Nobuyuki Otsuka, Gaku Sugahara, Ryoko Miyanaga +4 more | 2007-01-09 |
| 7108745 | Formation method for semiconductor layer | Ayumu Tsujimura, Isao Kidoguchi, Yuzaburo Ban | 2006-09-19 |
| 7056756 | Nitride semiconductor laser device and fabricating method thereof | Gaku Sugahara, Akihiko Ishibashi, Toshiya Yokogawa | 2006-06-06 |
| 7005680 | Semiconductor light-emitting device including a divided electrode having a plurality of spaced apart conductive members | Nobuyuki Otsuka, Gaku Sugahara, Yasutoshi Kawaguchi | 2006-02-28 |
| 6977186 | Method for manufacturing semiconductor laser optical device | Gaku Sugahara, Ryoko Miyanaga | 2005-12-20 |
| 6958493 | Method for fabricating semiconductor light emitting device | Toshitaka Shimamoto, Gaku Sugahara | 2005-10-25 |
| 6940100 | Group III-V nitride semiconductor light-emitting device which allows for efficient injection of electrons into an active layer | Ayumu Tsujimura, Akihiko Ishibashi, Isao Kidoguchi, Yuzaburo Ban, Masakatsu Suzuki | 2005-09-06 |
| 6921678 | Method for fabricating nitride semiconductor, method for fabricating nitride semiconductor device, and nitride semiconductor device | Akihiko Ishibashi, Ayumu Tsujimura, Nobuyuki Otsuka, Gaku Sugahara, Ryoko Miyanaga +4 more | 2005-07-26 |
| 6911351 | Method of fabricating nitride semiconductor, method of fabricating nitride semiconductor device, nitride semiconductor device, semiconductor light emitting device and method of fabricating the same | Isao Kidoguchi, Akihiko Ishibashi, Ryoko Miyanaga, Gaku Sugahara, Masakatsu Suzuki +4 more | 2005-06-28 |
| 6884648 | Method for fabricating semiconductor light emitting device | Toshitaka Shimamoto, Gaku Sugahara | 2005-04-26 |
| 6806109 | Method of fabricating nitride based semiconductor substrate and method of fabricating nitride based semiconductor device | Hiroyuki Furuya, Toshiya Yokogawa, Akihiko Ishibashi | 2004-10-19 |