Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5652762 | Semiconductor laser device and method for fabricating the same and strained quantum well crystal and method for fabricating the same | Nobuyuki Otsuka, Masahiro Kito, Yasushi Matsui | 1997-07-29 |
| 5621747 | Multi quantum well semiconductor laser and optical communication system using the same | Masahiro Kitoh, Nobuyuki Otsuka, Yasushi Matsui | 1997-04-15 |