Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10908356 | Optical device having a fiber array, and method of alignment thereof | Tomohiro Nakanishi, Motoki Minami, Satoru Konno, Yuichi Suzuki, Teruaki Sato +5 more | 2021-02-02 |
| 10720543 | Photodetector | Hiroshi Fukuda, Ken Tsuzuki, Makoto Jizodo, Kiyofumi Kikuchi | 2020-07-21 |
| 10649147 | Optical module | Tomohiro Nakanishi, Teruaki Sato, Motohaya Ishii, Satoru Konno, Yuichi Suzuki +8 more | 2020-05-12 |
| 10601522 | Optical receiver | Toshihiro Itoh, Yuriko Kawamura, Kiyofumi Kikuchi, Ken Tsuzuki, Hiroshi Fukuda | 2020-03-24 |
| 10295744 | Coherent optical mixer circuit | Makoto Jizodo, Hiroshi Fukuda, Kiyofumi Kikuchi, Ken Tsuzuki | 2019-05-21 |
| 10277271 | Optical module | Kiyofumi Kikuchi, Hiroshi Fukuda, Takashi Saida, Ken Tsuzuki | 2019-04-30 |
| 10243664 | Optical modulator driver circuit and optical transmitter | Munehiko Nagatani, Hideyuki Nosaka, Toshihiro Itoh, Koichi Murata, Hiroyuki Fukuyama +15 more | 2019-03-26 |
| 10193653 | Polarization multiplexing optical transmission circuit and polarization multiplexing optical transmission and reception circuit | Makoto Jizodo, Hiroshi Fukuda, Kiyofumi Kikuchi, Ken Tsuzuki | 2019-01-29 |
| 10190941 | Silicon optical circuit for flaw detection in an optical circuit element | Makoto Jizodo, Kotaro Takeda, Hiroshi Fukuda | 2019-01-29 |
| 10165690 | Solder joint structure of flexible printed circuit board | Mitsuo Usui, Kiyofumi Kikuchi, Ken Tsuzuki, Hiroshi Fukuda, Shuichiro Asakawa +2 more | 2018-12-25 |
| 10146099 | Optical modulator | Ken Tsuzuki, Makoto Jizodo | 2018-12-04 |
| 9817186 | Polarization rotator | Makoto Jizodo, Hiroshi Fukuda, Kiyofumi Kikuchi | 2017-11-14 |
| 8867873 | Arrayed waveguide grating | Yasuyuki Inoue, Mikitaka Itoh | 2014-10-21 |
| 8787710 | Wideband interferometer type polarization light beam combiner and splitter | Takayuki Mizuno, Takashi Goh, Hiroshi Yamazaki, Tsutomu Kitoh | 2014-07-22 |
| 8737779 | Optical wavelength multi/demultiplexer | Tsutomu Kitoh, Toshikazu Hashimoto, Yohei Sakamaki, Hiroshi Takahashi, Manabu Oguma | 2014-05-27 |
| 8483525 | Optical wavelength multiplexing/demultiplexing circuit, optical module using optical wavelength multiplexing/demultiplexing circuit, and communication system | Tsutomu Kitoh, Toshikazu Hashimoto, Yohei Sakamaki, Hiroshi Takahashi, Manabu Oguma | 2013-07-09 |
| 8467642 | Waveguide type optical device | Daisuke Ogawa, Takashi Saida, Yuji Moriya, Shigeo Nagashima, Yasuyuki Inoue | 2013-06-18 |
| 8369666 | Optical wavelength multiplexing/ de-multiplexing circuit | Tsutomu Kitoh, Masaki Kohtoku, Tomohiro Shibata, Takuya Tanaka, Yasuyuki Inoue +1 more | 2013-02-05 |
| 8244133 | Optical waveband demultiplexer, optical waveband multiplexer, and optical waveband selective switch | Ken Sato, Hiroshi Hasegawa, Shoji Kakehashi, Osamu Moriwaki, Kenya Suzuki +2 more | 2012-08-14 |
| 7245793 | Optical waveguide circuit | Yasuyuki Inoue, Takuya Tanaka, Toshikazu Hashimoto | 2007-07-17 |
| 6925228 | Optical waveguide circuit | Motohaya Ishii, Akihiro Takagi, Takeshi Kitagawa | 2005-08-02 |
| 6885447 | Spectrometer and optical spectrum analyzer | Yasuyuki Suzuki, Yoshihiro Sanpei, Makoto Komiyama, Kenji Ogino, Raiju Okada +1 more | 2005-04-26 |
| 6718140 | Optical wavelength division multiplexing transmission network device | Senichi Suzuki, Akimasa Kaneko, Kuniharu Kato | 2004-04-06 |
| 6229938 | WDM filter | Yoshinori Hibino, Akira Himeno, Makoto Abe, Takuya Tanaka, Akimasa Kaneko | 2001-05-08 |
| 5885081 | System and method for conversion between linguistically significant symbol sequences with display of support information | Shinko Tamura | 1999-03-23 |