Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11955772 | Semiconductor light emitting element | Yuki Kamata, Koichi Oyama, Hiroyuki Tarumi, Haisong Jiang | 2024-04-09 |
| 9563020 | Inter-mode light switch | — | 2017-02-07 |
| 8929418 | Semiconductor laser | — | 2015-01-06 |
| 8917959 | Analyzing element and analyzing apparatus using same | — | 2014-12-23 |
| 8774572 | Bistable element | — | 2014-07-08 |
| 8295663 | Super-luminescent light emitting diode | — | 2012-10-23 |
| 7466736 | Semiconductor laser diode, semiconductor optical amplifier, and optical communication device | Jan De Merlier | 2008-12-16 |
| 7262435 | Single-transverse-mode laser diode with multi-mode waveguide region and manufacturing method of the same | — | 2007-08-28 |
| 6813068 | Semiconductor optical amplifier and semiconductor laser | — | 2004-11-02 |
| 6768758 | Semiconductor laser, semiconductor optical amplifier, and production method thereof | — | 2004-07-27 |
| 6661960 | Semiconductor waveguide photodetector | — | 2003-12-09 |
| 6445722 | Single-transverse-mode laser diode with multi-mode waveguide region and manufacturing method of the same | — | 2002-09-03 |
| 6205163 | Single-transverse-mode 1.times.N multi-mode interferometer type semiconductor laser device | — | 2001-03-20 |
| 6148132 | Semiconductor optical amplifier | — | 2000-11-14 |
| 6117753 | Method of manufacturing compound semiconductor integrated circuit | Takashi Matsumoto | 2000-09-12 |
| 5841929 | Light wavelength filtering circuit and manufacturing method thereof | Keiro Komatsu, Masako Hayashi, Tatsuya Sasaki, Takeshi Takeuchi | 1998-11-24 |
| 5796883 | Optical integrated circuit and method for fabricating the same | Tatsuya Sasaki, Takeshi Takeuchi, Masako Hayashi, Keiro Komatsu, Ikuo Mito +1 more | 1998-08-18 |
| 5770466 | Semiconductor optical integrated circuits and method for fabricating the same | Tatsuya Sasaki, Mitsuhiro Kitamura, Shotaro Kitamura, Keiro Komatsu, Yasutaka Sakata | 1998-06-23 |
| 5565693 | Semiconductor optical integrated circuits | Tatsuya Sasaki, Mitsuhiro Kitamura, Shotaro Kitamura, Keiro Komatsu, Yasutaka Sakata | 1996-10-15 |
| 5521994 | Semiconductor optical waveguide-integrated light-receiving device | Takeshi Takeuchi, Kenko Taguchi, Keiro Komatsu, Masako Yamamoto | 1996-05-28 |