Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4862473 | Semiconductor laser apparatus having a high harmonic generating waveguide | Toshiki Hijikata | 1989-08-29 |
| 4858215 | Integrated optical disc pickup that allows variations in the wavelength of the laser beam | Hiroaki Kudo, Haruhisa Takiguchi, Toshiki Hijikata, Shinji Kaneiwa | 1989-08-15 |
| 4856006 | Higher harmonic generating device | Toshiki Hijikata | 1989-08-08 |
| 4817104 | Semiconductor laser array device | Mototaka Taneya, Sadayoshi Matsui, Mitsuhiro Matsumoto | 1989-03-28 |