| 4887274 |
Deterioration-resistant superlattice semiconductor laser device |
Toshiro Hayakawa, Takahiro Suyama, Kosei Takahashi |
1989-12-12 |
| 4862470 |
Semiconductor laser device |
Takahiro Suyama, Kosei Takahashi, Toshiro Hayakawa |
1989-08-29 |
| 4860297 |
Quantum well semiconductor laser device |
Toshiro Hayakawa, Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto |
1989-08-22 |
| 4852111 |
Semiconductor laser device |
Toshiro Hayakawa, Takahiro Suyama, Kosei Takahashi |
1989-07-25 |
| 4845724 |
Semiconductor laser device having optical guilding layers of unequal resistance |
Toshiro Hayakawa, Takahiro Suyama, Kosei Takahashi |
1989-07-04 |
| 4841533 |
Semiconductor laser device having a graded index waveguide |
Toshiro Hayakawa, Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto |
1989-06-20 |
| 4835783 |
Semiconductor laser |
Takahiro Suyama, Toshiro Hayakawa, Kohsei Takahashi, Saburo Yamamoto |
1989-05-30 |
| 4807235 |
Semiconductor laser device |
Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto, Toshiro Hayakawa |
1989-02-21 |
| 4787089 |
Quantum well semiconductor laser device |
Toshiro Hayakawa, Kohsei Takahashi, Takahiro Suyama, Saburo Yamamoto |
1988-11-22 |
| 4769822 |
Semiconductor laser device |
Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto, Toshiro Hayakawa |
1988-09-06 |
| 4750183 |
Semiconductor laser device |
Kohsei Takahashi, Toshiro Hayakawa, Takahiro Suyama, Saburo Yamamoto |
1988-06-07 |
| 4745612 |
Separate confinement heterostructure semiconductor laser device |
Toshiro Hayakawa, Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto |
1988-05-17 |
