Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6083868 | Method of producing heat-resistant catalyst support | Takeru Yoshida, Mikio Murachi | 2000-07-04 |
| 5972830 | High heat-resistant catalyst with a porous ceria support | Takeru Yoshida, Mikio Murachi, Norio Taguchi | 1999-10-26 |
| 5780875 | Hybrid optical integration assembly using optical platform | Ryuta Takahashi, Masato Shishikura, Satoru Kikuchi, Satoshi Aoki | 1998-07-14 |
| 5737467 | Resin molded optical assembly | Takeshi Kato, Kimio Tatsuno, Satoru Kikuchi, Masahiro Ojima, Yoichi Yasuda | 1998-04-07 |
| 5438444 | Optical routing system | Takashi Tayonaka, Ryoji Takeyari | 1995-08-01 |
| 5340637 | Optical device diffraction gratings and a photomask for use in the same | Makoto Okai, Akio Ohishi, Motohisa Hirao, Hiroyoshi Matsumura, Tatsuo Harada +2 more | 1994-08-23 |
| 5308995 | Semiconductor strained SL APD apparatus | Hitoshi Nakamura | 1994-05-03 |
| 5283846 | Optical isolator, optical circuit, and rare-earth-doped fiber optical amplifier | Takashi Toyonaka, Makoto Haneda, Yuichi Ono | 1994-02-01 |
| 5263517 | Toner pack for use with the developing device and method of filling up toner from the toner pack to the developing device | Takashi Ishikawa, Jiro Fukasawa | 1993-11-23 |
| 4905057 | Semiconductor devices | Akio Ohishi, Takao Kuroda, Motohisa Hirao, Hiroyoshi Matsumura | 1990-02-27 |
| 4905060 | Light emitting device with disordered region | Naoki Chinone, Hisao Nakashima, Makoto Okai | 1990-02-27 |
| 4894835 | Surface emitting type semiconductor laser | Kazuhisa Uomi, Makoto Okai, Shinji Sakano, Naoki Chinone | 1990-01-16 |
| 4885753 | Semiconductor laser device of variable wavelength type | Makoto Okai, Kazuhisa Uomi, Shinji Sakano, Naoki Chinone | 1989-12-05 |
| 4873691 | Wavelength-tunable semiconductor laser | Kazuhisa Uomi, Shinji Sakano, Makoto Okai, Naoki Chinone | 1989-10-10 |
| 4841536 | Semiconductor laser devices | Aiko Ohishi, Motohisa Hirao, Naoki Chinone, Hitoshi Nakamura, Hiroyoshi Matsumura | 1989-06-20 |
| 4819036 | Semiconductor device | Takao Kuroda, Akiyoshi Watanabe, Akio Ohishi, Hiroyoshi Matsumura | 1989-04-04 |
| 4792197 | Fabrication method and equipment for diffraction gratings | Hiroaki Inoue, Hiroyoshi Matsumura, Akira Arimoto | 1988-12-20 |
| 4775980 | Distributed-feedback semiconductor laser device | Naoki Chinone, Yoshihisa Fujisaki, Yasutoshi Kashiwada, Motohisa Hirao, Hitoshi Nakamura +4 more | 1988-10-04 |
| 4720836 | Distributed feedback semiconductor laser | Tadashi Fukuzawa, Hiroyoshi Matsumura, Hitoshi Nakamura, Kenji Hiruma | 1988-01-19 |
| 4665528 | Distributed-feedback semiconductor laser device | Naoki Chinone, Yoshihisa Fujisaki, Yasutoshi Kashiwada, Motohisa Hirao | 1987-05-12 |
| 4426700 | Semiconductor laser device | Motohisa Hirao, Atsutoshi Doi, Michiharu Nakamura, Takao Mori | 1984-01-17 |
| 4366569 | Semiconductor laser device including an arrangement for preventing laser degradation caused by excessive current flow | Motohisa Hirao, Michiharu Nakamura, Atsutoshi Doi, Yutaka Takeda, Takao Mori | 1982-12-28 |