Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10246366 | Method of manufacturing optical fiber base material and method of manufacturing optical fiber | Nobuo Oozeki, Kentaro Ichii | 2019-04-02 |
| 8941912 | Ytterbium-doped optical fiber, fiber laser and fiber amplifier | Shoji Tanigawa, Teruno Nakaguma, Kentaro Ichii | 2015-01-27 |
| 8774590 | Ytterbium-doped optical fiber | Kentaro Ichii, Shoji Tanigawa | 2014-07-08 |