Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886335 | Optical fiber switch system | Hisaharu Yanagawa, Toshihiro Ochiai, Hidehisa Miyazawa, Shizuka Yamaguchi, Tsuyoshi Fumeno +1 more | 1989-12-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886335 | Optical fiber switch system | Hisaharu Yanagawa, Toshihiro Ochiai, Hidehisa Miyazawa, Shizuka Yamaguchi, Tsuyoshi Fumeno +1 more | 1989-12-12 |