Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8179633 | Perpendicular magnetic recording system and write head with transverse auxiliary pole for fast switching of write pole magnetization | John Contreras | 2012-05-15 |
| 8179635 | Single pole tip write head design for perpendicular recording media having reduced dependence on soft underlayers | Petrus Antonius Van Der Heijden, Xiao Z. Wu | 2012-05-15 |
| 8163405 | System, method and apparatus for multiple anisotropy layered magnetic structures for controlling reversal mechanism and tightening of switching field distribution in bit patterned media | Thomas Hauet, Olav Hellwig | 2012-04-24 |
| 8139319 | Perpendicular magnetic recording system with magnetic precession for fast switching of perpendicular write pole magnetization | John Contreras, Yimin Hsu, Xinzhi Xing | 2012-03-20 |
| 8116031 | Perpendicular magnetic recording system with helical write coil and auxiliary coil for fast switching of write pole magnetization | Michael Alex, John Contreras, Xinzhi Xing | 2012-02-14 |
| 8116032 | Perpendicular magnetic recording system with auxiliary coil and circuitry for fast switching of write pole magnetization | John Contreras, David J. Seagle | 2012-02-14 |
| 8089723 | Damping control in magnetic nano-elements using ultrathin damping layer | — | 2012-01-03 |
| 7867406 | Patterned magnetic media having an exchange bridge structure connecting islands | Thomas R. Albrecht | 2011-01-11 |
| 7852587 | Thermal assisted recording (TAR) disk drive capable of controlling the write pulses | Thomas R. Albrecht, Barry Cushing Stipe, Gabriel Zeltzer | 2010-12-14 |
| 7848048 | Patterned media magnetic recording disk drive with write clock phase adjustment for write head track misregistration | Thomas R. Albrecht | 2010-12-07 |
| 7796353 | Patterned-media magnetic recording disk with optical contrast enhancement and disk drive using optical contrast for write synchronization | Barry Cushing Stipe, Gabriel Zeltzer | 2010-09-14 |
| 7782561 | Patterned magnetic recording medium with data island pattern for improved reading and writing and magnetic recording system incorporating the medium | Thomas R. Albrecht, Michael Moser, Xiao Z. Wu | 2010-08-24 |
| 6723450 | Magnetic recording medium with antiparallel coupled ferromagnetic films as the recording layer | Hoa Van Do, Mary Frances Doerner, Eric Fullerton, David Margulies, William G. McChesney +1 more | 2004-04-20 |
| 6687067 | Perpendicular signal equalization and timing recovery using Hilbert transform | Francesco Brianti, Bertrand Gabillard, Martin Hassner, Yoshiaki Sonobe, Barry M. Trager | 2004-02-03 |
| 6594100 | Method for recording magnetic transitions on recording layer having antiferromagnetically coupled ferromagnetic films | Matthew J. Carey, Eric Fullerton, Bruce Alvin Gurney, Hal J. Rosen | 2003-07-15 |
| 6468670 | Magnetic recording disk with composite perpendicular recording layer | Yoshihiro Ikeda, Yoshiaki Sonobe, Kentaro Takano, Dieter K. Weller | 2002-10-22 |
| 6440589 | Magnetic media with ferromagnetic overlay materials for improved thermal stability | Eric Fullerton, David Margulies, Ernesto E. Marinero | 2002-08-27 |
| 6383668 | Magnetic recording media with antiferromagnetically coupled host layer for the magnetic recording layer | Eric Fullerton, David Margulies, Ernesto E. Marinero | 2002-05-07 |
| 6280813 | Magnetic recording media with antiferromagnetically coupled ferromagnetic films as the recording layer | Matthew J. Carey, Eric Fullerton, Bruce Alvin Gurney, Hal J. Rosen | 2001-08-28 |