Issued Patents All Time
Showing 26–50 of 60 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Toshio Kurashima, Kazuhide NAKAJIMA, Tomoya Shimizu +2 more | 2015-11-03 |
| 9121995 | Optical fiber having holes | Shoji Tanigawa, Katsuhiro Takenaga, Takashi Matsui, Taiji SAKAMOTO, Kyouzou Tsujikawa +1 more | 2015-09-01 |
| 9081129 | Multi-core fiber | Kunimasa Saitoh, Masanori Koshiba | 2015-07-14 |
| 9069118 | Optical fan-in/fan-out device | Katsuhiro Takenaga, Kunimasa Saitoh, Masanori Koshiba | 2015-06-30 |
| 9057813 | Optical fiber | Mamoru Sato | 2015-06-16 |
| 8971685 | Multicore fiber | Katsuhiro Takenaga, Kunimasa Saitoh, Masanori Koshiba | 2015-03-03 |
| 8965165 | Multicore fiber | Yusuke Sasaki, Katsuhiro Takenaga | 2015-02-24 |
| 8896822 | Method of measuring cut-off wavelength of optical fiber | Yasuko Sugimoto | 2014-11-25 |
| 8195019 | Plastic glass optical fiber | Kenji Okada, Naritoshi Yamada | 2012-06-05 |
| 7817257 | Method for measuring a differential mode delay of a multimode optical fiber | Katsuhiro Takenaga, Ning Guan, Kuniharu Himeno, Koichi Harada | 2010-10-19 |
| 7606460 | Optical fiber and transmission system, and wavelength division multiplexing system | Shoji Tanigawa, Kuniharu Himeno | 2009-10-20 |
| 7526168 | Optical fiber, transmission system, and wavelength division multiplexing system | Shoji Tanigawa, Keisuke Uchiyama, Kuniharu Himeno | 2009-04-28 |
| 7505657 | Single-mode optical fiber | Kuniharu Himeno | 2009-03-17 |
| 7463346 | Optical fiber birefringence measurement method and measurement device, and optical fiber polarization mode dispersion measurement method and optical fiber | Ryuichiro Goto, Kuniharu Himeno | 2008-12-09 |
| 7440663 | Single-mode optical fiber | Hiroshi Kutami, Kuniharu Himeno, Hiroyuki Sawano | 2008-10-21 |
| 7366387 | Single-mode optical fiber | Kuniharu Himeno | 2008-04-29 |
| 7298934 | Optical fiber and method of measuring polarization mode dispersion of optical fiber | Ryuichiro Goto, Shoji Tanigawa, Kuniharu Himeno | 2007-11-20 |
| 7212281 | Optical fiber polarization mode dispersion measurement method and measurement device | Shoji Tanigawa, Tomoharu Sagawa, Masataka Ikeda, Kuniharu Himeno, Koichi Harada | 2007-05-01 |
| 7164835 | Optical fiber | Kuniharu Himeno, Koichi Harada, Masataka Ikeda | 2007-01-16 |
| 7158706 | Optical fiber | Kuniharu Himeno, Harada Koichi | 2007-01-02 |
| 7076139 | Optical fiber and optical transmission system | Kazuhiko Aikawa, Takashi Suzuki, Akira Wada, Ryozo Yamauchi, Takaaki Suzuki +1 more | 2006-07-11 |
| 7062136 | Optical fiber and optical transmission path | Shoji Tanigawa, Kuniharu Himeno, Koichi Harada | 2006-06-13 |
| 7031581 | Wavelength division multiplexed transmission path and dispersion-compensating fiber used therein | Manabu Saitou, Kazuhiko Aikawa | 2006-04-18 |
| 6980723 | Dispersion-compensating optical fiber and hybrid transmission line | Kazuhiko Aikawa, Manabu Saitou, Takaaki Suzuki, Takashi Suzuki, Koichi Harada +1 more | 2005-12-27 |
| 6928211 | Optical fiber and optical transmission path that uses the optical fiber | Shoji Tanigawa, Kuniharu Himeno | 2005-08-09 |