Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805547 | Anchor for hooking, severing and holding marine cable | Akira Matsuzaki, Yoshihiro Ejiri, Yoshiro Yamaguchi | 1989-02-21 |
| 4708427 | Optical submarine cable connection | Yoshihiro Ejiri, Akira Nagai, Yasuhiko Niiro | 1987-11-24 |
| 4490009 | Optical fiber submarine cable | Kahei Furusawa, Masanori Sato, Yasuhiko Niiro, Yoshihiro Ejiri, Makoto Nunokawa | 1984-12-25 |
| 4422718 | Submarine optical fiber cable | Yukio Nakagome, Kitsutaro Amano, Yasuhiko Niiro, Yoshihiro Ejiri, Hitoshi Yamamoto +1 more | 1983-12-27 |
| 4349243 | Optical fiber submarine cable | Kitsutaro Amano, Masanori Sato, Makoto Nunokawa | 1982-09-14 |
| 4345816 | Optical fiber introducing equipment for optical submerged repeater | Masanori Sato, Kahei Furusawa, Hitoshi Yamamoto, Yoshihiko Yamazaki, Yoshihiro Ejiri | 1982-08-24 |
| 4295707 | Feed through for optical submerged repeater | Kahei Furusawa, Yoshihiro Ejiri | 1981-10-20 |
| 4288144 | Optical fiber submarine cable | Kahei Furusawa, Makoto Nunokawa, Yoshihiro Ejiri | 1981-09-08 |