Issued Patents All Time
Showing 26–50 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4841533 | Semiconductor laser device having a graded index waveguide | Toshiro Hayakawa, Takahiro Suyama, Masafumi Kondo, Kohsei Takahashi | 1989-06-20 |
| 4835783 | Semiconductor laser | Takahiro Suyama, Toshiro Hayakawa, Kohsei Takahashi, Masafumi Kondo | 1989-05-30 |
| 4824518 | Method for the production of semiconductor devices | Toshiro Hayakawa, Takahiro Suyama, Kohsei Takahashi | 1989-04-25 |
| 4819245 | Semiconductor laser device having substriped channels for forming an active layer which is thin in an inside portion | Taiji Morimoto, Mototaka Taneya, Hiroshi Hayashi | 1989-04-04 |
| 4819244 | Semiconductor laser device | Hiroshi Hayashi, Taiji Morimoto | 1989-04-04 |
| 4817109 | External resonator type semiconductor laser apparatus | Nobuybuki Miyauchi, Osamu Yamamoto, Hiroshi Hayashi, Shigeki Maei | 1989-03-28 |
| 4815089 | Semiconductor laser | Nobuyuki Miyauchi, Shigeki Maei, Osamu Yamamoto, Taiji Morimoto, Hiroshi Hayashi | 1989-03-21 |
| 4807235 | Semiconductor laser device | Takahiro Suyama, Kohsei Takahashi, Toshiro Hayakawa, Masafumi Kondo | 1989-02-21 |
| 4806994 | Semiconductor device | Toshiro Hayakawa, Takahiro Suyama, Kohsei Takahashi | 1989-02-21 |
| 4803695 | Semiconductor laser apparatus having an external reflecting means | Osamu Yamamoto, Hiroshi Hayashi | 1989-02-07 |
| 4792962 | A ring-shaped resonator type semiconductor laser device | Nobuyuki Miyauchi, Hiroshi Hayashi, Osamu Yamamoto | 1988-12-20 |
| 4792960 | Semiconductor laser | Hiroshi Hayashi, Taiji Morimoto, Seiki Yano | 1988-12-20 |
| 4791636 | Semiconductor laser device and a method for driving the same | Osamu Yamamoto, Taiji Morimoto, Hiroshi Hayashi, Nobuyuki Miyauchi, Shigeki Maei | 1988-12-13 |
| 4791649 | Semiconductor laser device | Taiji Morimoto, Noboyuki Miyauchi, Shigeki Maei | 1988-12-13 |
| 4787089 | Quantum well semiconductor laser device | Toshiro Hayakawa, Kohsei Takahashi, Takahiro Suyama, Masafumi Kondo | 1988-11-22 |
| 4777637 | Interferometric semiconductor laser device | Hiroshi Hayashi, Osamu Yamamoto | 1988-10-11 |
| 4773077 | Internal reflection interferometric semiconductor laser apparatus | Osamu Yamamoto, Hiroshi Hayashi | 1988-09-20 |
| 4773076 | Internal reflector interferometric semiconductor laser device | Osamu Yamamoto, Hiroshi Hayashi | 1988-09-20 |
| 4771432 | Semiconductor laser which reduces the coherency of the oscillation spectrum | Seiki Yano, Sadayoshi Matsui, Hiroshi Hayashi | 1988-09-13 |
| 4769822 | Semiconductor laser device | Takahiro Suyama, Kohsei Takahashi, Toshiro Hayakawa, Masafumi Kondo | 1988-09-06 |
| 4768201 | Semiconductor laser array | Mototaka Taneya, Sadayoshi Matsui, Seiki Yano | 1988-08-30 |
| 4761790 | Optical semiconductor device | Toshiro Hayakawa, Takahiro Suyama, Kohsei Takahashi | 1988-08-02 |
| 4759024 | Semiconductor laser device having an oscillation wavelength in the visible short-wavelength region | Toshiro Hayakawa, Takahiro Suyama, Kosei Takahashi | 1988-07-19 |
| 4754462 | Semiconductor laser device with a V-channel and a mesa | Taiji Morimato, Hiroshi Hayashi | 1988-06-28 |
| 4750185 | Semiconductor laser array device | Shigeki Maei, Hiroshi Hayashi | 1988-06-07 |