Issued Patents All Time
Showing 51–75 of 80 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908830 | Buried type semiconductor laser device | Haruhisa Takiguchi, Shinji Kaneiwa, Hiroaki Kudo, Sadayoshi Matsui | 1990-03-13 |
| 4891816 | Integrated semiconductor laser device | Taiji Morimoto, Shinji Kaneiwa, Masahiro Yamaguchi | 1990-01-02 |
| 4873115 | Method of sythesizing carbon film and carbon particles in a vapor phase | Mitsuo Matsumura | 1989-10-10 |
| 4862472 | Semiconductor laser device | Haruhisa Takiguchi, Shinji Kaneiwa, Hiroaki Kudo, Chitose Sakane | 1989-08-29 |
| 4852961 | Nonlinear optical waveguide device including grating for changing of the wavelength of light | Osamu Yamamoto | 1989-08-01 |
| 4852116 | Semiconductor laser device | Haruhisa Takiguchi, Shinji Kaneiwa, Hiroaki Kudo | 1989-07-25 |
| 4849985 | Distributed feedback semiconductor laser device | Haruhisa Takiguchi, Shinji Kaneiwa, Hiroaki Kudo | 1989-07-18 |
| 4841534 | Buried type semiconductor laser device | Haruhisa Takiguchi, Shinji Kaneiwa, Hiroaki Kudo, Sadayoshi Matsui | 1989-06-20 |
| 4839900 | Buried type semiconductor laser device | Haruhisa Takiguchi, Shinji Kaneiwa, Hiroaki Kudo, Sadayoshi Matsui | 1989-06-13 |
| 4820019 | Optical device | Haruhisa Takiguchi, Shinji Kaneiwa | 1989-04-11 |
| 4819240 | Light modulator | Haruhisa Takiguchi, Shinji Kaneiwa, Sadayoshi Matsui | 1989-04-04 |
| 4813069 | Computer system having automatic answering telephone function | Nobuo Tanaka, Satoshi Tominaga, Hisao Okada | 1989-03-14 |
| 4806454 | Method for the formation of a diffraction grating | Haruhisa Takiguchi, Shinji Kaneiwa, Sadayoshi Matsui | 1989-02-21 |
| 4805183 | Distributed feedback semiconductor laser device | Hiroaki Kudo, Haruhisa Takiguchi, Shinji Kaneiwa | 1989-02-14 |
| 4803690 | Semiconductor laser | Haruhisa Takiguchi, Shinji Kaneiwa, Sadayoshi Matsui | 1989-02-07 |
| 4799227 | Semiconductor laser device having a buried heterostructure | Shinji Kaneiwa, Haruhisa Takiguchi, Sadayoshi Matsui | 1989-01-17 |
| 4771434 | Semiconductor laser device with an integrated light-detecting area | Haruhisa Takiguchi, Shinji Kaneiwa, Sadayoshi Matsui | 1988-09-13 |
| 4745615 | Semiconductor laser device with a diffraction grating | Shinji Kaneiwa, Haruhisa Takiguchi, Sadayoshi Matsui | 1988-05-17 |
| 4745616 | Semiconductor laser device with a diffraction grating | Shinji Kaneiwa, Haruhisa Takiguchi, Sadayoshi Matsui | 1988-05-17 |
| 4738729 | Amorphous silicon semiconductor solar cell | Mitsuo Matsumura, Hideo Yamamoto, Kunio Asai, Osamu Nakamura, Yoshinobu Okayasu | 1988-04-19 |
| 4730329 | Semiconductor laser device | Haruhisa Takiguchi, Shinji Kaneiwa, Sadayoshi Matsui | 1988-03-08 |
| 4726851 | Amorphous silicon semiconductor film and production process thereof | Mitsuo Matsumura | 1988-02-23 |
| 4716570 | Distributed feedback semiconductor laser device | Haruhisa Takiguchi, Shinji Kaneiwa, Sadayoshi Matsui | 1987-12-29 |
| 4696216 | Acoustic output device for personal computer | Takeoki Asahi | 1987-09-29 |
| 4692206 | Method for producing a semiconductor laser device having a buried heterostructure | Shinji Kaneiwa, Haruhisa Takiguchi, Sadayoshi Matsui | 1987-09-08 |