Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11156767 | Optical fiber and optical transmission system | Azusa Urushibara, Taiji SAKAMOTO, Masaki Wada, Takashi Yamamoto, Takayoshi Mori | 2021-10-26 |
| 10955622 | Connection device, optical connector manufacturing device, connection method, and method for manufacturing optical connector | Takashi Matsui, Masaki Wada, Yoko YAMASHITA | 2021-03-23 |
| 10871648 | Optical fiber design method | Takashi Matsui, Kyozo Tsujikawa, Fumihiko Yamamoto | 2020-12-22 |
| 10790905 | Optical fiber and optical transmission system | Takayoshi Mori, Taiji SAKAMOTO, Takashi Yamamoto, Masaki Wada, Azusa Urushibara | 2020-09-29 |
| 10782478 | Inter-mode loss difference compensator and optical amplifier | Masaki Wada, Taiji SAKAMOTO, Takayoshi Mori, Shinichi Aozasa, Takashi Yamamoto | 2020-09-22 |
| 10705291 | Optical transmission system | Azusa Urushibara, Takayoshi Mori, Taiji SAKAMOTO, Masaki Wada, Takashi Yamamoto | 2020-07-07 |
| 10620372 | Alignment apparatus and alignment method | Takashi Matsui, Taiji SAKAMOTO, Koutaro Saito | 2020-04-14 |
| 10585235 | Optical connector | Taiji SAKAMOTO, Takashi Matsui, Kotaro Saitoh | 2020-03-10 |
| 10545333 | Photonic crystal fiber and high-power light transmission system | Takashi Matsui, Kyozo Tsujikawa, Fumihiko Yamamoto | 2020-01-28 |
| 10539784 | Photonic crystal fiber and high-power light transmission system | Takashi Matsui, Kyozo Tsujikawa, Fumihiko Yamamoto | 2020-01-21 |
| 9562827 | Measuring method of longitudinal distribution of bending loss of optical fiber, measuring method of longitudinal distribution of actual bending loss value of optical fiber, test method of optical line, manufacturing method of optical fiber cable, manufacturing method of optical fiber cord, and manufacturing method of optical fiber | Shoji Tanigawa, Itaru Ishida, Shoichiro Matsuo, Toshio Kurashima, Tomoya Shimizu +2 more | 2017-02-07 |
| 9252872 | Crosstalk measuring method and crosstalk measuring device | Hiroki Hamaguchi, Shoichiro Matsuo, Itaru Ishida, Yukihiro Goto | 2016-02-02 |
| 9175946 | Measuring method of hole diameter, hole position, hole surface roughness, or bending loss of holey optical fiber, manufacturing method of holey optical fiber, and test method of optical line of holey optical fiber | Itaru Ishida, Shoji Tanigawa, Shoichiro Matsuo, Toshio Kurashima, Tomoya Shimizu +2 more | 2015-11-03 |
| 9075185 | Hole-assisted optical fiber | Naomi Kumano, Iwao Shimotakahara, Ryuichi Sugizaki, Takeshi Yagi, Tomoya Shimizu +3 more | 2015-07-07 |
| 8702317 | Optical connector and method for assembling same | Ryo Koyama, Masaaki Takaya, Toshio Kurashima, Masatoshi Shimizu, Kyoichi Nakamizo | 2014-04-22 |
| 8181487 | Optical fiber preform manufacturing method | Ryuichi Sugizaki, Naomi Kumano, Iwao Shimotakahara, Harumi Inaba, Takeshi Yagi +2 more | 2012-05-22 |
| 7228040 | Hole-assisted single mode optical fiber | Katsusuke Tajima, Jian Zhou, Izumi Sankawa, Kazuo Hogari | 2007-06-05 |