Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9891378 | Cascaded core multicore fiber and manufacturing method for same | Tomohiro Gonda, Ryuichi Sugizaki, Taiji SAKAMOTO, Takayoshi Mori, Masaki Wada +2 more | 2018-02-13 |
| 9695079 | Production method of optical fiber preform, and production method of optical fiber | Tomohiro Gonda, Ryo Miyabe, Ryuichi Sugizaki | 2017-07-04 |
| 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, Yukihiro TSUCHIDA, Koichi Maeda | 2017-06-27 |
| 9541707 | Method for connecting multi-core fiber, multi-core fiber, and method for manufacturing multi-core fiber | Tsunetoshi Saito, Kengo Watanabe | 2017-01-10 |
| 9121993 | Multi-core optical fiber and method of optical transmission | — | 2015-09-01 |
| 9088364 | Optical transmission system and multi-core optical fiber | — | 2015-07-21 |
| 8755659 | Optical transmission system and multi-core optical fiber | — | 2014-06-17 |
| 8737793 | Multi-core optical fiber and method of manufacturing the same | — | 2014-05-27 |
| 8532454 | Multi-core optical fiber | — | 2013-09-10 |
| 8457462 | Multi-core optical fiber | — | 2013-06-04 |
| 8425126 | Multi-core optical fiber, optical connector and method of manufacturing multi-core optical fiber | — | 2013-04-23 |
| 8335421 | Optical transmission system and multi-core optical fiber | — | 2012-12-18 |
| 8326105 | Multi-core optical fiber | — | 2012-12-04 |
| 8094985 | Multi-core holey fiber and optical transmission system | — | 2012-01-10 |
| 8041173 | Multi-core optical fiber having alignment markers | — | 2011-10-18 |
| 7773845 | Optical fiber and optical-fiber transmission line | — | 2010-08-10 |
| 7742671 | Optical fiber | Yahei Koyamada | 2010-06-22 |
| 7693379 | Holey fiber | — | 2010-04-06 |
| 7657141 | Photonic bandgap fiber | — | 2010-02-02 |
| 7613374 | Optical fiber and optical-fiber transmission line | — | 2009-11-03 |
| 7609928 | Method of connecting optical fibers | — | 2009-10-27 |
| 7492999 | Optical fiber and optical-fiber transmission line | — | 2009-02-17 |