Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5319657 | Semiconductor laser of modulation doping quantum well structure with stopper against dopant dispersion and manufacturing method thereof | Nobuyuki Otsuka, Masahiro Kito, Yasushi Matsui | 1994-06-07 |