Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5048922 | Optical fiber cable | Kiyofumi Mochizuki, Yoshinori Namihira, Yoshinao Iwamoto, Hitoshi Yamamoto | 1991-09-17 |
| 4506947 | Method and apparatus for core alignment of optical fibers | Koichi Tatekura, Hitoshi Yamamoto, Yoshihiro Ejiri | 1985-03-26 |
| 4505540 | Spliced portion housing structure for optical fiber in optical submerged repeater | Kahei Furusawa, Yoshihiro Ejiri, Hitoshi Yamamoto, Yoshihiko Yamazaki, Koichi Tatekura | 1985-03-19 |
| 4490009 | Optical fiber submarine cable | Taiichiro Nakai, Kahei Furusawa, Masanori Sato, Yasuhiko Niiro, Yoshihiro Ejiri | 1984-12-25 |
| 4469401 | Optical fiber unit for optical submarine cables | Yoshihiko Yamazaki, Hitoshi Yamamoto, Kahei Furusawa, Yoshihiro Ejiri | 1984-09-04 |
| 4349243 | Optical fiber submarine cable | Kitsutaro Amano, Taiichiro Nakai, Masanori Sato | 1982-09-14 |
| 4288144 | Optical fiber submarine cable | Taiichiro Nakai, Kahei Furusawa, Yoshihiro Ejiri | 1981-09-08 |
| 4257675 | Optical-fiber submarine cable and manufacturing method thereof | Yukio Nakagome, Yasuhiko Niiro, Hiroharu Wakabayashi | 1981-03-24 |