Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9722388 | Multi-core optical amplifying fiber device and multi-core optical fiber amplifier | Masateru Tadakuma, Koichi Maeda, Yukihiro TSUCHIDA, Shigehiro Takasaka | 2017-08-01 |
| 9695079 | Production method of optical fiber preform, and production method of optical fiber | Tomohiro Gonda, Katsunori Imamura, Ryo Miyabe | 2017-07-04 |