RH

Robert D. Hempstead

SE Sentera: 6 patents #6 of 178Top 4%
ST Seagate Technology: 2 patents #1,946 of 4,626Top 45%
US Ultratech Stepper: 1 patents #22 of 40Top 60%
WM Wd Media: 1 patents #83 of 182Top 50%
IBM: 1 patents #44,794 of 70,183Top 65%
Overall (All Time): #465,275 of 4,157,543Top 15%
11
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8919279 Processing system having magnet keeper Allen J. Bourez, Jinliang Chen, Yew Ming Chiong 2014-12-30
7541105 Epitaxial ferroelectric and magnetic recording structures including graded lattice matching layers Thomas F. Ambrose, Joachim Walter Ahner, Kai-Chieh Chang, Maissarath Nassirou, Mark Ian Lutwyche 2009-06-02
7095585 Hard disk drive for perpendicular recording with transducer having submicron gap between pole tips Alexander Payne, William C. Cain, Michael E. Devillier, Harold J. Hamilton, Darren T. Imai +2 more 2006-08-22
6671235 Method of and apparatus for defining disk tracks in magnetic recording media Andrew M. Hawryluk, David A. Markle 2003-12-30
6535361 Contact planar magnetoresistive head William C. Cain, Michael E. Devillier, Harold J. Hamilton, Darren T. Imai, Dimitre Latev 2003-03-18
6493191 Planar magnetic ring head for contact recording with a rigid disk William C. Cain, Richard Dyche Anderson, Michael A. Baldwinson, Keith R. Berding, Michael E. Devillier +8 more 2002-12-10
6320725 Hard disk drive having ring head with predominantly perpendicular media fields Alexander Payne, William C. Cain, Michael E. Devillier, Harold J. Hamilton, Darren T. Imai +3 more 2001-11-20
6212047 Hard disk drive with magnetoresistive head and perpendicular media Alexander Payne, William C. Cain, Michael E. Devillier, Harold J. Hamilton, Darren T. Imai +3 more 2001-04-03
6198607 Contact planar magnetoresistive head William C. Cain, Michael E. Devillier, Harold J. Hamilton, Darren T. Imai, Dimitre Latev 2001-03-06
5949612 Low friction sliding hard disk drive system Christopher S. Gudeman, Michael H. Azarian, Michael A. Baldwinson, Keith R. Berding, Kaynam Chun +4 more 1999-09-07
4242710 Thin film head having negative magnetostriction James Bryant Money 1980-12-30