Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12025843 | Optical processing structure of optical fiber | Takahiro TOMIYASU, Hirotatsu Ishii, Kenichi Suyama, Kouji MOCHIDUKI | 2024-07-02 |
| 11171462 | Fiber laser apparatus | Kosuke Kashiwagi, Akira Fujisaki | 2021-11-09 |
| 10862262 | Optical fiber laser device | Koji Kajiwara, Takeshi Takagi, Kousuke Kashiwagi, Kazuaki Hyuga | 2020-12-08 |
| 10530117 | Optical fiber laser device | Koji Kajiwara, Takeshi Takagi, Kousuke Kashiwagi, Kazuaki Hyuga | 2020-01-07 |
| 10141708 | Fiber laser apparatus and method of aligning laser light irradiation position | Kosuke Kashiwagi, Akira Fujisaki | 2018-11-27 |
| 9690050 | Laser unit and optical fiber laser | Kousuke Kashiwagi, Kanji Tanaka | 2017-06-27 |
| 9281654 | Raman amplifier, optical repeater, and Raman amplification method | Youichi Akasaka, Shu Namiki | 2016-03-08 |
| 9190802 | Optical fiber laser equipment | Taizo Miyato, Kosuke Kashiwagi, Akira Fujisaki, Koji Kajiwara | 2015-11-17 |
| 8811434 | Fiber laser apparatus and method of detecting failure of fiber laser apparatus | Taizo Miyato, Kosuke Kashiwagi, Akira Fujisaki | 2014-08-19 |
| 8437074 | Raman amplifier, optical repeater, and Raman amplification method | Youichi Akasaka, Shu Namiki | 2013-05-07 |
| 8340482 | Optical fiber holding apparatus | Yoshihiro Arashitani, Toshio Miyahara, Masanobu Nakamura | 2012-12-25 |
| 7936795 | Cascade Raman laser | — | 2011-05-03 |
| 7787733 | Optical fiber configuration for dissipating stray light | David J. DiGiovanni, Michael Fishteyn, Clifford Headley | 2010-08-31 |
| 7769298 | Light source in optical transmission system, waveform shaper, optical pulse train generator and optical reproduction system | Koji Igarashi, Atsushi Oguri, Shu Namiki, Osamu Aso, Masateru Tadakuma | 2010-08-03 |
| 7760978 | Optical fiber configuration for dissipating stray light | David J. DiGiovanni, Michael Fishteyn, Clifford Headley | 2010-07-20 |
| 7692852 | Raman amplifier, optical repeater, and Raman amplification method | Youichi Akasaka, Shu Namiki | 2010-04-06 |
| 7548368 | Raman amplifier, optical repeater, and raman amplification method | Youichi Akasaka, Shu Namiki | 2009-06-16 |
| 7447444 | Light source in optical transmission system, waveform shaper, optical pulse train generator, and optical reproduction system | Koji Igarashi, Atsushi Oguri, Shu Namiki, Osamu Aso, Masateru Tadakuma | 2008-11-04 |
| 7440167 | Optical fiber for Raman amplification, optical fiber coil, Raman amplifier, and optical communication system | Yuki Taniguchi, Ryuichi Sugizaki, Atsushi Oguri, Takeshi Yagi | 2008-10-21 |
| 7437046 | Optical fiber configuration for dissipating stray light | David J. DiGiovanni, Michael Fishteyn, Clifford Headley | 2008-10-14 |
| 7400442 | Optical signal amplifier | Shunichi Matsushita, Shu Namiki | 2008-07-15 |
| 7248399 | Optical fiber for Raman amplification, optical fiber coil, Raman amplifier, and optical communication system | Yuki Taniguchi, Ryuichi Sugizaki, Atsushi Oguri, Takeshi Yagi | 2007-07-24 |
| 7224513 | Pumping light source having amplification-band extending function for Raman amplification, Raman amplifier using the same, and method and program for setting amplification band extension | Atsushi Oguri, Shu Namiki | 2007-05-29 |
| 7206123 | Raman amplifier, pump source for use in a raman amplifier and method for amplifying an optical signal | Jake Bromage, Lynn Nelson, Shu Namiki | 2007-04-17 |
| 7199919 | Tunable multimode wavelength division multiplex Raman pump and amplifier, and a system, method, and computer program product for controlling tunable Raman pumps, and Raman amplifiers | Shu Namiki, Junji Yoshida, Naoki Tsukiji | 2007-04-03 |