Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4710976 | Optical repeater monitoring system | Hiroharu Wakabayashi | 1987-12-01 |
| 4708427 | Optical submarine cable connection | Yoshihiro Ejiri, Akira Nagai, Taiichiro Nakai | 1987-11-24 |
| 4490009 | Optical fiber submarine cable | Taiichiro Nakai, Kahei Furusawa, Masanori Sato, Yoshihiro Ejiri, Makoto Nunokawa | 1984-12-25 |
| 4432605 | Optical fiber submarine cable | Yoshihiro Ejiri | 1984-02-21 |
| 4422718 | Submarine optical fiber cable | Yukio Nakagome, Kitsutaro Amano, Taiichiro Nakai, Yoshihiro Ejiri, Hitoshi Yamamoto +1 more | 1983-12-27 |
| 4411520 | Light dispersion measuring apparatus | Kiyofumi Mochizuki, Hiroharu Wakabayashi | 1983-10-25 |
| 4313224 | Monitoring system of an optical power in an optical repeater | Hiroharu Wakabayashi | 1982-01-26 |
| 4304489 | System for measuring an optical loss in a single mode optical fiber | Hiroharu Wakabayashi | 1981-12-08 |
| 4300239 | Optical repeater monitoring system | Hiroharu Wakabayashi | 1981-11-10 |
| 4296996 | Feedthrough for optical fiber | Kahei Furusawa, Akira Okada | 1981-10-27 |
| 4278850 | Monitoring system for optical transmission line repeaters | Masanori Sato, Hiroharu Wakabayashi | 1981-07-14 |
| 4257675 | Optical-fiber submarine cable and manufacturing method thereof | Yukio Nakagome, Hiroharu Wakabayashi, Makoto Nunokawa | 1981-03-24 |
| 4201959 | Automatic equalization system | Hiroharu Wakabayashi | 1980-05-06 |