Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835583 | Semiconductor device having strained superlattice buffer layers with In-doped GaAs substrate | Makoto Morioka, Kenji Hiruma, Yoshifumi Katayama, Yasuhiro Shiraki | 1989-05-30 |