Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6055255 | Semiconductor laser device and method for producing the same | Ken Ohbayashi, Mitsuhiro Matsumoto | 2000-04-25 |
| 6023484 | Semiconductor laser device | Mitsuhiro Matsumoto | 2000-02-08 |
| 5909425 | Optical information reproduction apparatus having a semiconductor laser device light source | Mitsuhiro Matsumoto, Mototaka Taneya | 1999-06-01 |
| 5491106 | Method for growing a compound semiconductor and a method for producing a semiconductor laser | Akinori Seki, Hiroyuki Hosoba, Toshio Hata, Masafumi Kondo, Sadayoshi Matsui | 1996-02-13 |
| 5360762 | Semiconductor laser device, and a method for producing a compound semiconductor device including the semiconductor laser device | Kosei Takahashi, Masahiro Hosoda, Atsuo Tsunoda, Sadayoshi Matsui | 1994-11-01 |
| 5271028 | Semiconductor laser device | Masafumi Kondo, Shinji Kaneiwa, Toshio Hata, Hiroyuki Hosoba, Sadayoshi Matsui | 1993-12-14 |
| 5255279 | Semiconductor laser device, and a method for producing a compound semiconductor device including the semiconductor laser device | Kosei Takahashi, Masahiro Hosoda, Atsuo Tsunoda, Sadayoshi Matsui | 1993-10-19 |
| RE34356 | Semiconductor laser array | Toshiro Hayakawa, Saburo Yamamoto | 1993-08-24 |
| 5111470 | Semiconductor laser device and a method of fabricating the same | Hiroyuki Hosoba, Akinori Seki, Toshio Hata, Masafumi Kondou, Sadayoshi Matsui | 1992-05-05 |
| 5042044 | Semiconductor laser device, a semiconductor wafer | Masaki Kondo, Kazuaki Sasaki, Taiji Morimoto, Mitsuhiro Matsumoto, Hiroyuki Hosoba +3 more | 1991-08-20 |
| 5027169 | Semiconductor device with substrate misorientation | Kosei Takahashi, Masahiro Hosoda, Atsuo Tsunoda, Masafumi Kondo | 1991-06-25 |
| 5022036 | Semiconductor laser device | Masafumi Kondo, Kazuaki Sasaki, Masahiro Hosoda, Kosei Takahashi, Toshiro Hayakawa | 1991-06-04 |
| 5001522 | Optical semiconductor device | Kosei Takahashi, Toshiro Hayakawa, Masafumi Kondo | 1991-03-19 |
| 4984244 | Semiconductor laser device | Saburo Yamamoto, Taiji Morimoto, Kazuaki Sasaki, Masaki Kondo, Masafumi Kondo | 1991-01-08 |
| 4941024 | Semiconductor apparatus | Toshiro Hayakawa, Saburo Yamamoto | 1990-07-10 |
| 4907239 | Semiconductor laser device | Toshiro Hayakawa, Kosei Takahashi, Masafumi Kondo | 1990-03-06 |
| 4905246 | Semiconductor laser device | Toshiro Hayakawa, Kosei Takahashi, Masafumi Kondo | 1990-02-27 |
| 4901326 | Semiconductor laser device | Toshiro Hayakawa, Masafumi Kondo, Kosei Takahashi | 1990-02-13 |
| 4899349 | Semiconductor laser device | Toshiro Hayakawa, Kohsei Takahashi, Masafumi Kondo, Saburo Yamamoto | 1990-02-06 |
| 4894836 | Semiconductor device | Toshiro Hayakawa, Masafumi Kondo, Kosei Takahashi | 1990-01-16 |
| 4887274 | Deterioration-resistant superlattice semiconductor laser device | Toshiro Hayakawa, Kosei Takahashi, Masafumi Kondo | 1989-12-12 |
| 4862470 | Semiconductor laser device | Kosei Takahashi, Masafumi Kondo, Toshiro Hayakawa | 1989-08-29 |
| 4860297 | Quantum well semiconductor laser device | Toshiro Hayakawa, Kohsei Takahashi, Masafumi Kondo, Saburo Yamamoto | 1989-08-22 |
| 4852111 | Semiconductor laser device | Toshiro Hayakawa, Kosei Takahashi, Masafumi Kondo | 1989-07-25 |
| 4845724 | Semiconductor laser device having optical guilding layers of unequal resistance | Toshiro Hayakawa, Kosei Takahashi, Masafumi Kondo | 1989-07-04 |