Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9563403 | Random number generating device | Michihito Ueda, Yu Nishitani, Yukihiro Kaneko | 2017-02-07 |
| 7160748 | Method for fabricating nitride semiconductor, method for fabricating nitride semiconductor device, and nitride semiconductor device | Akihiko Ishibashi, Yoshiaki Hasegawa, Nobuyuki Otsuka, Gaku Sugahara, Ryoko Miyanaga +4 more | 2007-01-09 |
| 7108745 | Formation method for semiconductor layer | Yoshiaki Hasegawa, Isao Kidoguchi, Yuzaburo Ban | 2006-09-19 |
| 6940100 | Group III-V nitride semiconductor light-emitting device which allows for efficient injection of electrons into an active layer | Yoshiaki Hasegawa, 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, Yoshiaki Hasegawa, 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 |
| 6858877 | Nitride semiconductor, method for manufacturing the same and nitride semiconductor device | Yasutoshi Kawaguchi, Akihiko Ishibashi, Nobuyuki Otsuka | 2005-02-22 |
| 6777253 | Method for fabricating semiconductor, method for fabricating semiconductor substrate, and semiconductor light emitting device | Akihiko Ishibashi, Yasutoshi Kawaguchi, Nobuyuki Otsuka, Kiyoshi Ohnaka | 2004-08-17 |
| 6764871 | Method for fabricating a nitride semiconductor device | Yasutoshi Kawaguchi, Akihiko Ishibashi | 2004-07-20 |
| 6720586 | 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 | 2004-04-13 |
| 6614059 | Semiconductor light-emitting device with quantum well | Yoshiaki Hasegawa, Akihiko Ishibashi, Isao Kidoguchi, Yuzaburo Ban, Masakatsu Suzuki | 2003-09-02 |
| 6611005 | Method for producing semiconductor and semiconductor laser device | Yoshiaki Hasegawa, Akihiko Ishibashi, Isao Kidoguchi, Yuzaburo Ban | 2003-08-26 |
| 6586774 | Method for fabricating nitride semiconductor, method for fabricating nitride semiconductor device, and nitride semiconductor device | Akihiko Ishibashi, Yoshiaki Hasegawa, Nobuyuki Otsuka, Gaku Sugahara, Ryoko Miyanaga +4 more | 2003-07-01 |
| 6562129 | Formation method for semiconductor layer | Yoshiaki Hasegawa, Isao Kidoguchi, Yuzaburo Ban | 2003-05-13 |
| 6466597 | Semiconductor laser device | Masahiro Kume, Yuzaburo Ban, Kenji Harafuji, Isao Kidoguchi, Satoshi Kamiyama +3 more | 2002-10-15 |
| 6392979 | Optical pickup and optical disk apparatus using the same | Kazuhisa Yamamoto, Yasuo Kitaoka, Masahiro Kume | 2002-05-21 |
| 6324200 | Semiconductor laser device | Satoshi Kamiyama, Masahiro Kume, Ryoko Miyanaga, Isao Kidoguchi, Yuzaburo Ban +2 more | 2001-11-27 |
| 6265287 | Method for producing semiconductor layer for a semiconductor laser device | Yoshiaki Hasegawa, Akihiko Ishibashi, Isao Kidoguchi, Yuzaburo Ban | 2001-07-24 |
| 6072762 | Optical disk recording/reproducing method and apparatus for preventing wave length shift during recording and reproducing operations | Masahiro Kume, Yuzaburo Ban, Isao Kidoguchi, Satoshi Kamiyama, Akihiko Ishibashi +2 more | 2000-06-06 |
| 6030849 | Methods of manufacturing semiconductor, semiconductor device and semiconductor substrate | Yoshiaki Hasegawa, Akihiko Ishibashi, Nobuyuki Uemura, Yuzaburo Ban, Masahiro Kume +2 more | 2000-02-29 |
| 5817410 | Nonlinear optical composites using linear transparent substances and method for producing the same | Masaru Yoshida, Ichiro Tanahashi, Yoshio Manabe, Tsuneo Mitsuyu | 1998-10-06 |
| 5663974 | Semiconductor laser | Kazuhiro Okawa, Satoshi Kamiyama, Tsuneo Mitsuyu | 1997-09-02 |
| 5499260 | Semiconductor laser and a method for fabricating the same | Yasuhito Takahashi | 1996-03-12 |
| 5339326 | Reflector for semiconductor laser end-face and method of manufacturing the same | Kazuhiro Ohkawa | 1994-08-16 |