Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4884026 | Electrical characteristic measuring apparatus | Takuo Uchida | 1989-11-28 |
| 4796113 | Method and apparatus for automatically replacing defective recording tracks in data storage apparatus | — | 1989-01-03 |