Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4845046 | Process for producing semiconductor devices by self-alignment technology | — | 1989-07-04 |
| 4838993 | Method of fabricating MOS field effect transistor | Kenji Aoki | 1989-06-13 |