Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5324963 | Electroluminescent semiconductor device having chalcogenide layer and mixed crystal layer | — | 1994-06-28 |
| 5281831 | Optical semiconductor device | Tsutomu Uemoto, Hidetoshi Fujimoto, Hiroshi Mitsuhashi | 1994-01-25 |