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Issued Patents

  1. B.W. Crue, E. Svedberg, R. Rottmayer, D. Litvinov, S. Khizroev, “Low moment-high moment write pole with non-magnetic layer for establishing a magnetic path discontinuity between layers of the write pole,” US patent 7,038,882, issued May 2, 2006.

  2. D. Litvinov, S. Khizroev, R.W. Gustafson, “Magnetic recording system which eliminates skew angle effect,” US patent 6,987,637, issued January 17, 2006.

  3. S. Khizroev, D. Litvinov, B. Crue, N. Amin, R.E. Rottmayer, “Perpendicular recording head with trackwidth defined by plating thickness,” US patent 6,898,053, issued May 24, 2005.

  4. D. Litvinov, S. Khizroev, “Perpendicular magnetic recording apparatus for improved playback resolution having flux generating elements proximate the read element,” US patent 6,888,700, issued May 3, 2005.

  5. D. Litvinov, N. Shukla, E.B. Svedberg, S. Khizroev, D.K. Weller, “Selective annealing of magnetic recording films,” US patent 6,884,328, issued April 26, 2005.

  6. D. Litvinov, S. Khizroev, “Magnetic recording head including background magnetic field generator,” US patent 6,876,519, issued April 5, 2005.

  7. S. Khizroev, D. Litvinov, B.W. Crue, “Perpendicular magnetic recording head,” US patent 6,876,518, issued April 5, 2005.

  8. S. Khizroev, D. Litvinov, E.C. Johns, “Gapless longitudinal magnetic recording head with flux cavity,” US patent 6,865,057, issued March 8, 2005.

  9. S. Khizroev, D. Litvinov, M.H. Kryder, J.A. Bain, “Longitudinal magnetic recording heads with variable-length gap,” US patent 6,685,056, issued March 8, 2005.

  10. A.M. Shukh, E.W. Singleton, S. Khizroev, D. Litvinov, “Perpendicular recording medium with antiferromagnetic exchange coupling in soft magnetic underlayers,” US patent 6,818,330, issued November 16, 2004.

  11. D. Litvinov, S. Khizroev, “Perpendicular magnetic recording head with longitudinal magnetic field generator to facilitate magnetization switching,” US patent 6,816,339, issued November 9, 2004.

  12. D. Litvinov, S. Khizroev, B. Crue, “Perpendicular recording head with return poles which reduce flux antenna effect,” US patent 6,798,615, issued September 28, 2004.

  13. S. Khizroev, D. Litvinov, M.H. Kryder, “Perpendicular recording head including concave tip,” US patent 6,771,462, issued August 3, 2004.

  14. S. Khizroev, D. Litvinov, R. Gustafson, N. Shukla, “Perpendicular magnetic recording head with a magnetic shield to reduce side reading,” US patent 6,738,233, issued May 18, 2004.

  15. D. Litvinov, S. Khizroev, B.W. Crue, “Composite write pole for a magnetic recording head,” US patent 6,721,131, issued April 13, 2004.

  16. B.W. Crue, S. Khizroev, D. Litvinov, T.M. Crawford, “Perpendicular magnetic recording head having a flux focusing main pole,” US patent 6,693,768, issued February 17, 2004.

  17. S. Khizroev, D. Litvinov, "Perpendicular magnetic recording head with means for suppressing noise from soft magnetic underlayer of recording media," US patent 6,667,848, issued December 23, 2003.

  18. D. Litvinov, S. Khizroev, J.K. Howard, and R.W. Gustafson, "Perpendicular magnetic recording media with laminated soft magnetic underlayer," US patent 6,660,357, issued December 9, 2003.

  19. D. Litvinov, S. Khizroev, J.K. Howard, "Multilayer magnetic recording media with columnar microstructure for improved exchange decoupling," US patent 6,656,613, issued December 2, 2003.

  20. D. Litvinov, S. Khizroev, B. Crue, "Perpendicular magnetic recording head with write pole which reduces flux antenna effect," US patent 6,646,827, issued November 11, 2003.

  21. D. Litvinov, S. Khizroev, "Magnetic recording media including magnetically soft composite layer and method of making same," US patent 6,645,647, issued November 11, 2003.

  22. D. Litvinov, S. Khizroev, "Multilayer perpendicular magnetic recording media with exchange decoupled spacer layers," US patent 6,630,255, issued October 7, 2003.

  23. D. Litvinov and S. Khizroev, "Perpendicular recording head defining the trackwidth by material deposition thickness," US patent 6,560,069, issued May 6 2003.

  24. D. Litvinov, S. Khizroev, M. H. Kryder, "Perpendicular magnetic recording media with reduced-noise soft magnetic underlayer," US patent 6,531,202, issued Mar 11, 2003.

  25. S. Khizroev, B. W. Crue, D. Litvinov, "Method for forming a perpendicular recording read/write head," US patent 6,513,228, issued Feb 4, 2003

Pending Patent Applications

  1. W. Crue, E. C. Johns, S. Khizroev, D. Litvinov, U. Tran, "Write pole for a magnetic recording head having layered low magnetic moment and high magnetic moment material," US patent application, 60/180,292, filed Feb 2, 2001.

  2. D. Litvinov, W. Crue, M.-L. Wu, S. Khizroev, "Magnetic recording heads including boron nitride insulating material," US patent application, 60/191,525, filed Mar 23, 2001.

  3. D. Litvinov, R. W. Gustafson, and S. Khizroev, "Read element for magnetic storage media having magnetic coupling between itself and its shields," US patent application, 60/208,252, filed May 23, 2001.

  4. S. Batra, S. Khizroev, D. Litvinov, "Longitudinal recording head with reduced side fringing," US patent application, 60/180,295, filed Feb 5, 2001.

  5. S. Khizroev and D. Litvinov, "Perpendicular magnetic recording system including recording media with a soft magnetic underlayer having a saturation moment higher than the moment of the recording head," US patent application, 60/175,863, filed Jan 12, 2001.

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