Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE44215 | Semiconductor optoelectric device and method of manufacturing the same | Masahiro Yamamoto, Hidetoshi Fujimoto, Masayuki Ishikawa, Shinji Saito, Yukie Nishikawa +1 more | 2013-05-14 |
| 6080599 | Semiconductor optoelectric device and method of manufacturing the same | Masahiro Yamamoto, Hidetoshi Fujimoto, Masayuki Ishikawa, Shinji Saito, Yukie Nishikawa +1 more | 2000-06-27 |
| 6057565 | Semiconductor light emitting device including a non-stoichiometric compound layer and manufacturing method thereof | Hiroaki Yoshida, Masayuki Ishikawa, Hidetoshi Fujimoto, Genichi Hatakoshi | 2000-05-02 |
| 5864171 | Semiconductor optoelectric device and method of manufacturing the same | Masahiro Yamamoto, Hidetoshi Fujimoto, Masayuki Ishikawa, Shinji Saito, Yukie Nishikawa +1 more | 1999-01-26 |
| 5822349 | Semiconductor device and method of manufacturing the same | Keiji Takaoka, Mitsuhiro Kushibe, Toshihide Izumiya | 1998-10-13 |
| 5693963 | Compound semiconductor device with nitride | Hidetoshi Fujimoto, Koichi Nitta, Masayuki Ishikawa, Hideto Sugawara, Masahiro Yamamoto | 1997-12-02 |
| 5542373 | Method of manufacturing GaAs single crystals | Junichi Nishizawa | 1996-08-06 |
| 5168077 | Method of manufacturing a p-type compound semiconductor thin film containing a III-group element and a v-group element by metal organics chemical vapor deposition | Yasuo Ashizawa, Takao Noda, Mitsuhiro Kushibe, Masahisa Funemizu, Kazuhiro Eguchi +1 more | 1992-12-01 |
| 5153889 | Semiconductor light emitting device | Hideto Sugawara, Masayuki Ishikawa, Yukie Nishikawa, Shigeya Naritsuka, Kazuhiko Itaya +2 more | 1992-10-06 |
| 5048035 | Semiconductor light emitting device | Hideto Sugawara, Masayuki Ishikawa, Yukie Nishikawa, Shigeya Naritsuka | 1991-09-10 |
| 5036521 | Semiconductor laser device | Genichi Hatakoshi, Kazuhiko Itaya, Shigeya Naritsuka, Masayuki Ishikawa, Hajime OKUDA +4 more | 1991-07-30 |
| 5034957 | Semiconductor laser device | Yasuo Ohba, Yukie Nishikawa, Hajime OKUDA, Masayuki Ishikawa, Hideto Sugawara +1 more | 1991-07-23 |
| 4987097 | Method of manufacturing a semiconductor laser device | Koichi Nitta, Yukie Nishikawa, Masayuki Ishikawa, Yasuhiko Tsuburai | 1991-01-22 |
| 4922499 | Semiconductor laser device and the manufacturing method thereof | Koichi Nitta, Yukie Nishikawa, Masayuki Ishikawa, Yasuhiko Tsuburai | 1990-05-01 |
| 4893313 | Semiconductor laser device which has a double-hetero structure having an optimal layer thickness | Genichi Hatakoshi, Kazuhiko Itaya, Shigeya Naritsuka, Masayuki Ishikawa, Hajime OKUDA +4 more | 1990-01-09 |
| 4539067 | Method and apparatus for manufacturing single crystals | Syoichi Washizuka, Jisaburo Ushizawa, Tsuguo Fukuda | 1985-09-03 |
| 4397813 | Apparatus for manufacturing single crystals | Syoichi Washizuka, Jisaburo Ushizawa, Tsuguo Fukuda | 1983-08-09 |