Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4829799 | Method of manufacturing substrate for memory disk | Thomas U. Coe, Atsushi Yamazaki | 1989-05-16 |
| 4823578 | Method of manufacturing substrate for memory disk | Thomas U. Coe, Atsushi Yamazaki | 1989-04-25 |