Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882479 | Optical rotary encoder using dual frequency beat difference | Motohito Hino | 1989-11-21 |
| 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 |
| 4852106 | Optical system for producing controlled beat frequency | Motohito Hino | 1989-07-25 |