Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8464557 | Method of producing optical fiber preform and optical fiber | Tadashi Takahashi, Takeshi Yagi | 2013-06-18 |
| 6901196 | Optical fiber having a lower bending loss | Fumio Takahashi, Hideya Moridaira | 2005-05-31 |
| 6795628 | Broadband optical fiber | — | 2004-09-21 |