Issued Patents All Time
Showing 51–75 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5292685 | Method for producing a distributed feedback semiconductor laser device | Kazuhiko Inoguchi, Satoshi Sugahara, Hiroaki Kudo, Chitose Nakanishi, Haruhisa Takiguchi | 1994-03-08 |
| 5280493 | Quantum wire laser | Haruhisa Takiguchi, Hiroaki Kudo, Satoshi Sugahara | 1994-01-18 |
| 5182758 | Periodic gain-type semiconductor laser device | Fumihiro Konushi, Toshiyuki Okumura, Haruhisa Takiguchi | 1993-01-26 |
| 5140653 | Optical head for a laser printer | — | 1992-08-18 |
| 4994140 | Method capable of forming a fine pattern without crystal defects | Akita Kenzo, Yoshimasa Sugimoto, Hiroshi Hidaka | 1991-02-19 |
| 4939737 | Scanning apparatus with refracting area of variable refractive index | Sadayoshi Matsui, Mitsuhiro Matsumoto | 1990-07-03 |
| 4914669 | Semiconductor laser array apparatus | Sadayoshi Matsui, Mitsuhiro Matsumoto, Hiroyuki Hosoba | 1990-04-03 |
| 4903274 | Semiconductor laser array device | Mitsuhiro Matsumoto, Sadayoshi Matsui, Hiroyuki Hosoba | 1990-02-20 |
| 4901328 | Semiconductor VSIS laser | Sadayoshi Matsui, Haruhisa Takiguchi, Shinji Kaneiwa | 1990-02-13 |
| 4890293 | Semiconductor laser device | Kosei Takahashi, Toshiro Hayakawa, Sadayoshi Matsui, Mitsuhiro Matsumoto, Hiroyuki Hosoba | 1989-12-26 |
| 4878223 | Semiconductor laser array device | Taiji Morimoto, Hiroyuki Hosoba, Mitsuhiro Matsumoto, Sadayoshi Matsui | 1989-10-31 |
| 4872174 | Semiconductor laser device having a grating structure | Sadayoshi Matsui, Mitsuhiro Matsumoto, Hiroyuki Hosoba, Haruhisa Takiguchi, Hiroaki Kudo | 1989-10-03 |
| 4870651 | Semiconductor light-emitting apparatus | Mitsuhiro Matsumoto, Sadayoshi Matsui | 1989-09-26 |
| 4856015 | Semiconductor laser array device | Sadayoshi Matsui, Mitsuhiro Matsumoto, Hiroyuki Hosoba | 1989-08-08 |
| 4853936 | Index guided semiconductor laser device | Sadayoshi Matsui, Shinji Kaneiwa, Taiji Morimoto, Masahiro Yamaguchi, Mitsuhiro Matsumoto | 1989-08-01 |
| 4847847 | Semiconductor laser array | Sadayoshi Matsui, Mitsuhiro Matsumoto | 1989-07-11 |
| 4823353 | Semiconductor laser array apparatus | Mitsuhiro Matsumoto, Sadayoshi Matsui | 1989-04-18 |
| 4819245 | Semiconductor laser device having substriped channels for forming an active layer which is thin in an inside portion | Taiji Morimoto, Hiroshi Hayashi, Saburo Yamamoto | 1989-04-04 |
| 4817104 | Semiconductor laser array device | Seiki Yano, Sadayoshi Matsui, Mitsuhiro Matsumoto | 1989-03-28 |
| 4815088 | Semiconductor laser array device | Mitsuhiro Matsumoto, Sadayoshi Matsui | 1989-03-21 |
| 4813051 | Semiconductor laser array device | Mitsuhiro Matsumoto, Hidenori Kawanishi, Sadayoshi Matsui | 1989-03-14 |
| 4811351 | Semiconductor laser array device | Sadayoshi Matsui, Mitsuhiro Matsumoto, Hidenori Kawanishi | 1989-03-07 |
| 4799225 | Semiconductor laser array device | Sadayoshi Matsui, Mitsuhiro Matsumoto | 1989-01-17 |
| 4791651 | Semiconductor laser array device | Mitsuhiro Matsumoto, Sadayoshi Matsui | 1988-12-13 |
| 4780175 | Method for the production of an optical phase-shifting board | Mitsuhiro Matsumoto, Sadayoshi Matsui | 1988-10-25 |