Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10921522 | Optical fiber member and optical fiber holder | Hiroki Hara, Masahiro Shinkai, Takashi Kikukawa, Masami Sasaki, Ryohei FUKUZAKI +3 more | 2021-02-16 |
| 4838916 | Method for making single-polorization, single mode optical fibers | Takao Edahiro, Yutaka Sasaki, Katusunari Okamoto, Masao Kawachi | 1989-06-13 |
| 4525027 | Single mode optical fibers | Katsunari Okamoto, Takao Edahiro, Akio Kawana | 1985-06-25 |
| 4372647 | Single mode optical fibers | Katsunari Okamoto, Takao Edahiro, Akio Kawana | 1983-02-08 |