Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889831 | Method of forming a high temperature stable ohmic contact to a III-V substrate | Kazuaki Ishii, Toshiro Futatsugi, Toshio Oshima, Toshio Fujii, Akihiro Shibatomi | 1989-12-26 |
| 4849934 | Logic circuit using resonant-tunneling transistor | Toshihiko Mori | 1989-07-18 |
| 4837178 | Method for producing a semiconductor integrated circuit having an improved isolation structure | Toshio Ohshima | 1989-06-06 |
| 4821090 | Compound semiconductor integrated circuit device | — | 1989-04-11 |