Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4749628 | Multilayered vertical magnetic recording medium | Richard H. Ahlert, James K. Howard | 1988-06-07 |
| 4654276 | Magnetic recording medium with an underlayer and a cobalt-based magnetic layer | Richard H. Ahlert, James K. Howard | 1987-03-31 |