Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6399404 | Fabricating method of optical semiconductor device | — | 2002-06-04 |
| 6391671 | Method of producing an optical semiconductor device having a waveguide layer buried in an InP current blocking layer | Yasumasa Inomoto | 2002-05-21 |
| 6383829 | Optical semiconductor device and method of fabricating the same | — | 2002-05-07 |
| 6350629 | Optical semiconductor device having active layer and carrier recombination layer different from each other | — | 2002-02-26 |