Issued Patents All Time
Showing 1–25 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12066669 | Optical device | Tomoya Saeki, Katsumi Uesaka | 2024-08-20 |
| 11448821 | Slant-type fiber grating | Shigehiro Nagano, Jun Kinugasa, Takemi Hasegawa | 2022-09-20 |
| 11378737 | Optical fiber preform, method for manufacturing optical fiber preform, and method for setting striae pitch of optical fiber preform | Masatoshi Hayakawa | 2022-07-05 |
| 10908353 | Optical fiber and slanted fiber grating | Shigehiro Nagano, Jun Kinugasa, Takemi Hasegawa | 2021-02-02 |
| 10365448 | Optical module having two lens system and monitor photodiode between two lenses | Yasushi Fujimura, Tomoya Saeki, Shunsuke Sato, Munetaka Kurokawa | 2019-07-30 |
| 10056982 | Method of coupling optical signal optically with optical waveguide through two lens system | Kazuhiro Yamaji, Tomoya Saeki, Yasushi Fujimura, Munetaka Kurokawa | 2018-08-21 |
| 9887783 | Lens system to enhance optical coupling efficiency of collimated beam to optical waveguide | Kazuhiro Yamaji, Tomoya Saeki, Yasushi Fujimura, Munetaka Kurokawa | 2018-02-06 |
| 9804324 | Multimode optical fiber | Kazuhiro Yonezawa, Tadashi Enomoto | 2017-10-31 |
| 9711944 | Quantum cascade laser | Jun Hashimoto, Hiroyuki Yoshinaga | 2017-07-18 |
| 9618190 | LED module including flexible printed circuit board with adhesive layers and LED lighting fixture | Kensaku Motoki, Yoshihiro Akahane, Hirohisa Saito | 2017-04-11 |
| 9596526 | Wavelength selective switch | Kenichiro Takahashi, Hidehisa Tazawa | 2017-03-14 |
| 9475722 | Optical fiber producing method and apparatus and optical fiber | Tadashi Enomoto, Iwao Okazaki, Takashi Yamazaki, Masatoshi Hayakawa, Norihiro Uenoyama +1 more | 2016-10-25 |
| 9372311 | Wavelength selective switch | Hidehisa Tazawa, Kenichiro Takahashi, Takafumi Ohtsuka, Masaki Suzuki | 2016-06-21 |
| 9274348 | Dispersive device having beam expanding optical system and dispersive element and wavelength selective switch having dispersive device | Hidehisa Tazawa | 2016-03-01 |
| 9116414 | Wavelength selective switch | Hidehisa Tazawa, Kenichiro Takahashi | 2015-08-25 |
| 9081201 | Optical unit and wavelength selective switch | Satoshi Yoshikawa | 2015-07-14 |
| 8145061 | Optical module implementing a light-receiving device and a light-transmitting device within a common housing | Katsuhisa Tawa, Hiromi Kurashima | 2012-03-27 |
| 7807942 | Laser processing method and laser processing apparatus | Keiji Fuse, Kenichi Watatani | 2010-10-05 |
| 7502167 | Diffraction grating element, production method of diffraction grating element, and method of designing diffraction grating element | Masakazu Shigehara | 2009-03-10 |
| 7236659 | Optical device and movable reflector | Makoto Katayama | 2007-06-26 |
| 7184214 | Diffraction grating element, production method of diffraction grating element, and method of designing diffraction grating element | Masakazu Shigehara | 2007-02-27 |
| 7085054 | Diffraction grating element | Masakazu Shigehara | 2006-08-01 |
| 7062120 | Optical device and movable reflector | Makoto Katayama, Tomomi Sano, Michiko Takushima | 2006-06-13 |
| 7019904 | Diffraction grating element, production method of diffraction grating element, and method of designing diffraction grating element | Masakazu Shigehara | 2006-03-28 |
| 6965479 | Optical filter, interleaver, and optical communication system | Tomomi Sano, Hiroshi Suganuma, Tamoya Kenmochi, Tetsuya Iimura | 2005-11-15 |