Inventor
ISHIHARA HEIGO
JP20 patents
Patents
20 patentsUS5820964AOct 13, 1998
Magnetic disk, and magnetic disk apparatus
HITACHI LTD22 citations92
US5543203AAug 6, 1996
Magnetic recording medium having a protective layer which includes high and low surface energy regions and a lubricant
HITACHI LTD27 citations92
US5498457AMar 12, 1996
Magnetic recording medium having a lubricant layer comprising ionically interbonded fluoropolyethers with acidic and basic terminal groups
HITACHI LTD19 citations92
US5958542ASep 28, 1999
Thin film magnetic disc and method of manufacturing the disc
HITACHI LTD36 citations89
US4966797AOct 30, 1990
Process for producing magnetic recording medium, magnetic paint, and magnetic disk
HITACHI LTD20 citations81
US4692378ASep 8, 1987
Magnetic recording media
HITACHI LTD17 citations74
US6555197B1Apr 29, 2003
Lubricant, magnetic disk and magnetic disk apparatus
HITACHI LTD5 citations73
US5093211AMar 3, 1992
Magnetic recording medium comprising a surface treatment layer provided on the magnetic layer of specified fluorocarboxylic acid amine salts
HITACHI LTD7 citations73
US4794035ADec 27, 1988
Magnetic recording medium
HITACHI LTD9 citations73
US5034243AJul 23, 1991
Method for magnetic orientation of magnetic recording medium using Meissner effect of high Tc superconductor
HITACHI LTD8 citations72
US4238341ADec 9, 1980
Composition of magnetic recording media
HITACHI LTD15 citations72
US4229312AOct 21, 1980
Method of manufacturing a paint composite for magnetic films
HITACHI LTD8 citations72
US4985295AJan 15, 1991
Magnetic recording medium and method for producing the same
HITACHI LTD9 citations71
US5008128AApr 16, 1991
Process for producing information recording medium
HITACHI LTD5 citations62
US4722859AFeb 2, 1988
Magnetic recording medium
HITACHI LTD4 citations62
US4189508AFeb 19, 1980
Process for the preparation of magnetic recording medium
HITACHI LTD5 citations61
US5073460ADec 17, 1991
Magnetic recording medium and process for producing the same
HITACHI LTD2 citations60
US6869536B2Mar 22, 2005
Lubricant, magnetic disk and magnetic disk apparatus
HITACHI LTD0 citations51
US5180608AJan 19, 1993
Process for producing a rigid magnetic disk by longitudinally generating standing waves or interference waves in an undried applied magnetic paint
HITACHI LTD1 citations51
US5000982AMar 19, 1991
Magnetic recording medium and method for producing the same
HITACHI LTD0 citations49