Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173909 | Wavelength tunable laser diode | Akihiko Oka, Katutoshi Saito, Naoki Chinone | 1992-12-22 |
| 5170404 | Semiconductor laser device suitable for optical communications systems drive | Tsukuru Ohtoshi, Shinji Sasaki, Naoki Chinone, Kazuhisa Uomi | 1992-12-08 |
| 5119393 | Semiconductor laser device capable of controlling wavelength shift | Akihiko Oka, Naoki Chinone, Tsukuru Ohtoshi, Kazuhisa Uomi, Tomonobu Tsuchiya +1 more | 1992-06-02 |
| 5113072 | Device having superlattice structure, and method of and apparatus for manufacturing the same | Hiroshi Yamaguchi, Keiya Saito, Fumikazu Itoh, Koji Ishida, Masao Tamura +3 more | 1992-05-12 |
| 5042049 | Semiconductor optical device | Tsukuru Ohtoshi, Kazuhisa Uomi, Naoki Chinone | 1991-08-20 |
| 4983540 | Method of manufacturing devices having superlattice structures | Hiroshi Yamaguchi, Keiya Saito, Fumikazu Itoh, Koji Ishida, Masao Tamura +3 more | 1991-01-08 |
| 4900134 | Optical device | Hiroaki Inoue, Toshio Katsuyama, Hiroyoshi Matsumura, Hitoshi Nakamura | 1990-02-13 |
| 4894835 | Surface emitting type semiconductor laser | Kazuhisa Uomi, Shinji Tsuji, Makoto Okai, Naoki Chinone | 1990-01-16 |
| 4887877 | Optical devices and optical integrated circuits | Hiroaki Inoue, Hitoshi Nakamura, Toshio Katsuyama, Hiroyoshi Matsumura | 1989-12-19 |
| 4885753 | Semiconductor laser device of variable wavelength type | Makoto Okai, Kazuhisa Uomi, Shinji Tsuji, Naoki Chinone | 1989-12-05 |
| 4873691 | Wavelength-tunable semiconductor laser | Kazuhisa Uomi, Shinji Tsuji, Makoto Okai, Naoki Chinone | 1989-10-10 |
| 4840446 | Photo semiconductor device having a multi-quantum well structure | Hitoshi Nakamura, Hiroaki Inoue, Toshio Katsuyama, Hiroyoshi Matsumura | 1989-06-20 |
| 4813757 | Optical switch including bypass waveguide | Hiroaki Inoue, Hiroyoshi Matsumura, Hitoshi Nakamura, Toshio Katsuyama, Naoki Chinone | 1989-03-21 |
| 4803692 | Semiconductor laser devices | Hiroyoshi Matsumura | 1989-02-07 |