Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9722388 | Multi-core optical amplifying fiber device and multi-core optical fiber amplifier | Masateru Tadakuma, Koichi Maeda, Shigehiro Takasaka, Ryuichi Sugizaki | 2017-08-01 |
| 9692201 | Optical-fiber-bundle structure, rare-earth-doped multi-core fiber, connection structure therefor, method for exciting rare-earth-doped multi-core fibers, and multi-core-optical-fiber amplifier | Kengo Watanabe, Tsunetoshi Saito, Koichi Maeda, Katsunori Imamura | 2017-06-27 |
| 9423559 | Multi-core amplification optical fiber | Yu Mimura | 2016-08-23 |
| 9225141 | Multi-core amplification optical fiber and multi-core optical fiber amplifier | Koichi Maeda, Yu Mimura, Hiroshi Matsuura, Kengo Watanabe, Tsunetoshi Saito +4 more | 2015-12-29 |
| 8787720 | Optical fiber | Kazunori Mukasa | 2014-07-22 |
| 8437594 | Holey fiber | Kazunori Mukasa | 2013-05-07 |
| 8315494 | Optical fiber | Kazunori Mukasa | 2012-11-20 |