Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7911675 | Optical modulation device and optical semiconductor device | — | 2011-03-22 |
| 7733934 | Optical waveguide and semiconductor optical element | Takeshi Yamatoya, Toshitaka Aoyagi | 2010-06-08 |
| 7502402 | Integrated optical semiconductor device | — | 2009-03-10 |
| 6978055 | Optical modulator | — | 2005-12-20 |
| 6574027 | Optical modulator, and optical-modulator-intergrated laser diode | — | 2003-06-03 |
| 6574379 | Optical device and its manufacturing method | — | 2003-06-03 |
| 6021149 | Optical semiconductor module | Toshio Sogo | 2000-02-01 |
| 5906753 | Method of making optical semi-conductor device | Toshitaka Aoyagi | 1999-05-25 |
| 5790737 | Optical semiconductor device | Toshitaka Aoyagi | 1998-08-04 |
| 5717710 | Optical semiconductor device | Eitaro Ishimura, Tatsuya Kimura | 1998-02-10 |
| 5648977 | Laser array device and method of fabricating the device | — | 1997-07-15 |
| 5636235 | Semiconductor laser device including columns of semiconductor lasers with non-central light emitting regions | — | 1997-06-03 |
| 5602672 | Light modulator module and method for fabricating light modulator module | Eitaro Ishimura, Minoru Kawano | 1997-02-11 |
| 5550855 | Optical modulator | Toshitaka Aoyagi, Hitoshi Watanabe, Kunihiko Isshiki | 1996-08-27 |