Issued Patents All Time
Showing 1–2 of 2 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 |
| 4742613 | Cable core self-aligning apparatus | Shizuka Yamaguchi, Yoshihiko Ueno, Isamu Kinoshita | 1988-05-10 |