Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4706300 | Optical heterodyne detection pulse receiving system and method | Minoru Shikada, Katsumi Emura | 1987-11-10 |
| 4289373 | Bidirectional optical fiber transmission system | Shigetoki Sugimoto | 1981-09-15 |
| 4285570 | Light branching device | Teiji Uchida | 1981-08-25 |