Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865407 | Optical waveguide element, method of making the same and optical coupler employing optical waveguide element | Akihiro Suzuki, Makoto Suzuki, Yutaka Hattori, Kazuyuki Miyaki, Masayuki Yoshida +1 more | 1989-09-12 |
| 4855986 | Data storage and readout optical head using a single substrate having an electrooptic converging portion for adjustment of the light beam focal point | — | 1989-08-08 |
| 4816912 | Laser-beam printer with improved optical deflector | Makoto Suzuki | 1989-03-28 |
| 4812637 | Optical disc head with high signal-to-noise ratio | — | 1989-03-14 |
| 4807204 | Magneto-optical recording medium having pairs of mutually corresponding recording segments, and apparatus for recording information on the medium | Shuzo Mizutani, Riki Matsuda, Yutaka Hattori, Kazuyuki Miyaki, Shinichi Hirahata | 1989-02-21 |