Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10333280 | Semiconductor laser device | Hiroyuki Ishii, Naoki Fujiwara, Kei Watanabe, Keisuke Kasai, Masataka Nakazawa | 2019-06-25 |
| 10126502 | Optical waveguide device and module | Takanori Ishikawa, Tomoyo Shibazaki, Mitsuru Nagano, Masahiro Yanagisawa, Hiroshi Terui | 2018-11-13 |
| 10050717 | Multi-stage interferometer circuit with waveform shaping function | Takashi Goh, Kiyofumi Kikuchi | 2018-08-14 |
| 9684129 | Optical waveguide device and module | Takanori Ishikawa, Tomoyo Shibazaki, Mitsuru Nagano, Masahiro Yanagisawa, Hiroshi Terui | 2017-06-20 |
| 9116305 | Arrayed waveguide grating, optical module provided with said arrayed waveguide grating, and optical communications system | Hirotaka Nakamura, Shinya Tamaki, Shunji Kimura, Takayuki Mizuno, Hiroshi Takahashi +1 more | 2015-08-25 |
| 9020307 | Optical waveguide device and module | Takanori Ishikawa, Tomoyo Shibazaki, Mitsuru Nagano, Masahiro Yanagisawa, Hiroshi Terui | 2015-04-28 |
| 8867873 | Arrayed waveguide grating | Shin Kamei, Yasuyuki Inoue | 2014-10-21 |
| 8369666 | Optical wavelength multiplexing/ de-multiplexing circuit | Shin Kamei, Tsutomu Kitoh, Masaki Kohtoku, Tomohiro Shibata, Takuya Tanaka +1 more | 2013-02-05 |
| 6937797 | Planar lightwave circuit and optical circuit | Takayuki Mizuno, Tsutomu Kitoh, Yasuyuki Inoue, Yoshinori Hibino, Takashi Saida +1 more | 2005-08-30 |
| 6775454 | Silica-based optical waveguide circuit and fabrication method thereof | Takashi Saida, Yasuhiro Hida, Yasuyuki Inoue | 2004-08-10 |
| 6625370 | Optical waveguide and fabricating method thereof, and optical waveguide circuit | Ryoichi Kasahara, Takashi Saida, Yasuhiro Hida | 2003-09-23 |
| 6580862 | Optical waveguide circuit | Toshimi Kominato, Akio Sugita, Yasuyuki Inoue, Yasuhiro Hida | 2003-06-17 |
| 6304706 | Planar lightwave circuit | Akio Sugita, Akimasa Kaneko | 2001-10-16 |