Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4894836 | Semiconductor device | Takahiro Suyama, Masafumi Kondo, Kosei Takahashi | 1990-01-16 |
| 4890293 | Semiconductor laser device | Mototaka Taneya, Kosei Takahashi, Sadayoshi Matsui, Mitsuhiro Matsumoto, Hiroyuki Hosoba | 1989-12-26 |
| 4887274 | Deterioration-resistant superlattice semiconductor laser device | Takahiro Suyama, Kosei Takahashi, Masafumi Kondo | 1989-12-12 |
| 4862470 | Semiconductor laser device | Takahiro Suyama, Kosei Takahashi, Masafumi Kondo | 1989-08-29 |
| 4860297 | Quantum well semiconductor laser device | Takahiro Suyama, Kohsei Takahashi, Masafumi Kondo, Saburo Yamamoto | 1989-08-22 |
| 4852111 | Semiconductor laser device | Takahiro Suyama, Kosei Takahashi, Masafumi Kondo | 1989-07-25 |
| 4845724 | Semiconductor laser device having optical guilding layers of unequal resistance | Takahiro Suyama, Kosei Takahashi, Masafumi Kondo | 1989-07-04 |
| 4841533 | Semiconductor laser device having a graded index waveguide | Takahiro Suyama, Masafumi Kondo, Kohsei Takahashi, Saburo Yamamoto | 1989-06-20 |
| 4835783 | Semiconductor laser | Takahiro Suyama, Kohsei Takahashi, Masafumi Kondo, Saburo Yamamoto | 1989-05-30 |
| 4824518 | Method for the production of semiconductor devices | Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto | 1989-04-25 |
| 4806994 | Semiconductor device | Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto | 1989-02-21 |
| 4807235 | Semiconductor laser device | Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto, Masafumi Kondo | 1989-02-21 |
| 4787089 | Quantum well semiconductor laser device | Kohsei Takahashi, Takahiro Suyama, Masafumi Kondo, Saburo Yamamoto | 1988-11-22 |
| 4769822 | Semiconductor laser device | Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto, Masafumi Kondo | 1988-09-06 |
| 4761790 | Optical semiconductor device | Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto | 1988-08-02 |
| 4759024 | Semiconductor laser device having an oscillation wavelength in the visible short-wavelength region | Takahiro Suyama, Kosei Takahashi, Saburo Yamamoto | 1988-07-19 |
| 4750183 | Semiconductor laser device | Kohsei Takahashi, Takahiro Suyama, Masafumi Kondo, Saburo Yamamoto | 1988-06-07 |
| 4746181 | Optical semiconductor device | Takahiro Suyama, Saburo Yamamoto | 1988-05-24 |
| 4745612 | Separate confinement heterostructure semiconductor laser device | Takahiro Suyama, Kohsei Takahashi, Masafumi Kondo, Saburo Yamamoto | 1988-05-17 |
| 4737959 | Semiconductor laser array device | Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto | 1988-04-12 |
| 4723253 | Semiconductor laser array | Takahiro Suyama, Saburo Yamamoto | 1988-02-02 |
| 4720833 | Semiconductor laser apparatus | Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto | 1988-01-19 |
| 4693207 | Apparatus for the growth of semiconductor crystals | Takahiro Suyama, Kohsei Takahashi, Saburo Yamamoto | 1987-09-15 |
| 4694460 | Stripe geometry semiconductor laser device | Takahiro Suyama, Saburo Yamamoto | 1987-09-15 |
| 4691214 | Optical semiconductor apparatus | Takahiro Suyama, Saburo Yamamoto | 1987-09-01 |