Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889831 | Method of forming a high temperature stable ohmic contact to a III-V substrate | Kazuaki Ishii, Toshio Oshima, Toshio Fujii, Naoki Yokoyama, Akihiro Shibatomi | 1989-12-26 |
| 4868612 | Semiconductor device utilizing multiquantum wells | Toshio Oshima | 1989-09-19 |