Issued Patents

  1. D. Litvinov and S. Khizroev, "Perpendicular recording head defining the trackwidth by material deposition thickness," US patent 6,560,069, issued May 6 2003.
  2. 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.
  3. 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. D. Litvinov, and S. Khizroev, "Magnetic recording media including magnetically soft composite layer and method of making same," US patent, 60/175,858, filed Jan 12, 2001.
  2. D. Litvinov, R. W. Gustafson, K. J. Howard, S. Khizroev, "Perpendicular magnetic recording media with laminated soft magnetic underlayer," 60/180,415, filed Feb 2, 2001.
  3. 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, 60/180,292, filed Feb 2, 2001.
  4. W. Crue, T. M. Crawford, S. Khizroev, D. Litvinov, "Perpendicular magnetic recording head having a flux focusing main pole," US patent, 60/189,359, filed Mar 15, 2001.
  5. D. Litvinov, W. Crue, M.-L. Wu, S. Khizroev, "Magnetic recording heads including boron nitride insulating material," US patent, 60/191,525, filed Mar 23, 2001.
  6. D. Litvinov, W. Crue, S. Khizroev, "Perpendicular recording head with return poles which reduce flux antenna effect," US patent, 60/192,053, filed Mar 23, 2001.
  7. D. Litvinov, and S. Khizroev, "Multilayer perpendicular magnetic recording media with exchange decoupled spacer layers," US patent, 60/192,050, filed Mar 23, 2001.
  8. D. Litvinov, R. W. Gustafson, and S. Khizroev, "Read element for magnetic storage media having magnetic coupling between itself and its shields," US patent, 60/208,252, filed May 23, 2001.
  9. D. Litvinov, R. W. Gustafson, and S. Khizroev, "Magnetic recording system which eliminates skew angle effect," US patent, 60/221,494, filed Jul 26, 2001.
  10. A. M. Shukh, S. Khizroev, D. Litvinov, E. W. Singleton, "Perpendicular recording medium with antiferromagnetic exchange coupling in soft magnetic underlayers," US patent, 60/227,943, filed Aug 24, 2001.
  11. D. Litvinov, K. J. Howard, S. Khizroev, "Multilayer magnetic recording media with columnar microstructure for improved exchange decoupling," US patent, 60/235,943, filed Sep 27, 2001.
  12. S. Khizroev, R. W. Gustafson, D. Litvinov, N. Shukla, "A perpendicular magnetic recording head with a magnetic shield to reduce side reading," US patent, 60/257,125, filed Dec 20, 2001.
  13. D. Litvinov, B. Crue, S. Khizroev, "Composite write pole for a magnetic recording head," US patent, 60/276,154, filed Nov 29, 2001.
  14. D. Litvinov, and S. Khizroev, "Perpendicular magnetic recording head for improved resolution," US patent, 60/306,802, filed Dec 17, 2001.
  15. D. Litvinov, N. Shukla, E. B. Svedberg, S. Khizroev, D. K. Weller, "Selective annealing of magnetic recording films," US patent, 60/334,240, filed Nov 27, 2002.
  16. W. Crue, E. B. Svedberg, R. E. Rottmayer, D. Litvinov, and S. Khizroev, "Next generation of the skew insensitive laminated perpendicular magnetic probe," US patent, filed June 2003.
  17. S. Khizroev, M. H. Kryder, D. Litvinov, "Perpendicular recording head including concave tip," US patent, 60/154,973, filed Sept 19, 2000.
  18. D. Litvinov, and S. Khizroev, "Magnetic recording head including background magnetic field generator," International and US patents, 60/154,880, filed Sept 19, 2000.
  19. S. Khizroev, J. A. Bain, M. H. Kryder, D. Litvinov, "Longitudinal magnetic recording heads with variable-length gaps," International and US patents, 60/157,883, filed Oct 4, 2000
  20. S. Khizroev, N. Amin, B. Crue, D. Litvinov, "Perpendicular recording head with trackwidth defined by plating thickness," US patent, 60/161,690, filed Oct 24, 2000.
  21. S. Batra, S. Khizroev, D. Litvinov, "Longitudinal recording head with reduced side fringing," US patent, 60/180,295, filed Feb 5, 2001.
  22. S. Khizroev, E. C. Johns, D. Litvinov, "Gapless longitudinal magnetic recording head with flux cavity," US patent, 60/174,524 filed on Jan. 5, 2000, 60/175,793 filed Jan 5, 2001.
  23. S. Khizroev, W. Crue, D. Litvinov, "Perpendicular magnetic recording head with write pole which reduces flux antenna effect," US patent, 60/175,320, filed Jan 10, 2001.
  24. D. Litvinov, and S. Khizroev, "Perpendicular recording head with longitudinal magnetic field generator to facilitate magnetic switching," US patent, 60/175,266, filed Jan 10, 2001.
  25. S. Khizroev, and D. Litvinov, "Perpendicular magnetic recording head with means for suppressing noise from soft magnetic underlayer of recording media," US patent, 60/175,265, 60/175,271, 60/180,293, 60/189,365, 60/191,974, 60/191,775, filed Jan 10, 2001.
  26. 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, 60/175,863, filed Jan 12, 2001.