Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878105 | Semiconductor device having wiring layer composed of silicon film and aluminum film with improved contact structure thereof | Noboru Hirakawa | 1989-10-31 |
| 4845539 | Semiconductor memory device | — | 1989-07-04 |