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Patent applications and USPTO patent grants for Sellmyer; David J..The latest application filed is for "extremely high density magnetic recording media, with production methodology controlled longitudinal/perpendicular orientation, grain size and coercivity".
Patent | Date |
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Extremely high density magnetic recording media, with production methodology controlled longitudinal/perpendicular orientation, grain size and coercivity Grant 6,555,252 - Sellmyer , et al. April 29, 2 | 2003-04-29 |
Extremely high density magnetic recording media, with production methodology controlled longitudinal/perpendicular orientation, grain size and coercivity App 20010036562 - Sellmyer, David J. ;   et al. | 2001-11-01 |
High coercivity longitudinal recording media and method for its preparation Grant 6,139,907 - Sellmyer , et al. October 31, 2 | 2000-10-31 |
High coercivity longitudinal recording media and method for its preparation Grant 5,824,409 - Sellmyer , et al. October 20, 1 | 1998-10-20 |
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