Ahlert; Richard H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ahlert; Richard H..The latest application filed is for "barium ferrite thin film for longitudinal recording".
- Ahlert; Richard H. - San Jose CA
| Patent | Date |
|---|---|
| Barium ferrite thin film for longitudinal recording Grant 5,492,775 - Ahlert , et al. February 20, 1 | 1996-02-20 |
| Magnetic recording disk, magnetoresistive read head, inductive write head combination Grant 5,227,212 - Ahlert , et al. July 13, 1 | 1993-07-13 |
| Thin film magnetic recording disk comprising alternating layers of a CoNi or CoPt alloy and a non-magnetic spacer layer Grant 5,051,288 - Ahlert , et al. September 24, 1 | 1991-09-24 |
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