Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8941912 | Ytterbium-doped optical fiber, fiber laser and fiber amplifier | Shoji Tanigawa, Tomofumi Arai, Kentaro Ichii | 2015-01-27 |
| 8363313 | Ytterbium-doped optical fiber, fiber laser, and fiber amplifier | Kentaro Ichii, Shoji Tanigawa | 2013-01-29 |