Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4984884 | Method for measuring dispersion characteristics of an optical fiber | Shiro Ryu, Yukio Horiuchi | 1991-01-15 |
| 4977564 | Controller for semiconductor laser light source | Shiro Ryu | 1990-12-11 |