Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4525027 | Single mode optical fibers | Katsunari Okamoto, Takao Edahiro, Tetsuo Miya | 1985-06-25 |
| 4372647 | Single mode optical fibers | Katsunari Okamoto, Takao Edahiro, Tetsuo Miya | 1983-02-08 |