Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5234242 | Submarine cable grapnel | Takashi Mizuguchi, Kazuomi Yamamura, Kikuo Shirai | 1993-08-10 |
| 4805547 | Anchor for hooking, severing and holding marine cable | Akira Matsuzaki, Taiichiro Nakai, Yoshiro Yamaguchi | 1989-02-21 |
| 4708427 | Optical submarine cable connection | Akira Nagai, Taiichiro Nakai, Yasuhiko Niiro | 1987-11-24 |
| 4653846 | Optical fiber hermetic fixing structure of feedthrough for optical submarine repeater | Yoshihiko Yamazaki, Kahei Furusawa | 1987-03-31 |
| 4595284 | Method and apparatus for measuring distribution of elongation in an optical cable | Koichi Tatekura, Kiyofumi Mochizuki | 1986-06-17 |
| 4506947 | Method and apparatus for core alignment of optical fibers | Koichi Tatekura, Hitoshi Yamamoto, Makoto Nunokawa | 1985-03-26 |
| 4505540 | Spliced portion housing structure for optical fiber in optical submerged repeater | Kahei Furusawa, Makoto Nunokawa, Hitoshi Yamamoto, Yoshihiko Yamazaki, Koichi Tatekura | 1985-03-19 |
| 4490009 | Optical fiber submarine cable | Taiichiro Nakai, Kahei Furusawa, Masanori Sato, Yasuhiko Niiro, Makoto Nunokawa | 1984-12-25 |
| 4469401 | Optical fiber unit for optical submarine cables | Yoshihiko Yamazaki, Hitoshi Yamamoto, Kahei Furusawa, Makoto Nunokawa | 1984-09-04 |
| 4432605 | Optical fiber submarine cable | Yasuhiko Niiro | 1984-02-21 |
| 4422718 | Submarine optical fiber cable | Yukio Nakagome, Kitsutaro Amano, Taiichiro Nakai, Yasuhiko Niiro, Hitoshi Yamamoto +1 more | 1983-12-27 |
| 4389086 | Feedthrough terminal comprising a guide member defined for at least one optical fiber cable between a tube and a rod | Kahei Furusawa, Yoshihiko Yamazaki, Tadayoshi Matsuzaki, Hiroyuki Nakashima, Osamu Harada | 1983-06-21 |
| 4345816 | Optical fiber introducing equipment for optical submerged repeater | Taiichiro Nakai, Masanori Sato, Kahei Furusawa, Hitoshi Yamamoto, Yoshihiko Yamazaki | 1982-08-24 |
| 4295707 | Feed through for optical submerged repeater | Taiichiro Nakai, Kahei Furusawa | 1981-10-20 |
| 4288144 | Optical fiber submarine cable | Taiichiro Nakai, Kahei Furusawa, Makoto Nunokawa | 1981-09-08 |
| 4270029 | Selection system for digital signal repeaters | Masanori Sato, Hiroharu Wakabayashi, Hitoshi Yamamoto | 1981-05-26 |