Assignee
MEMOREX CORP
58 patents
Top patents by PatentIndex Score
US4277809AJul 7, 1981
Apparatus for recording magnetic impulses perpendicular to the surface of a recording medium
MEMOREX CORP81 citations94
US4125883ANov 14, 1978
Apparatus for centering and clamping a flexible magnetic recording disc
MEMOREX CORP64 citations94
US4670806AJun 2, 1987
Self loading slider for magnetic recording heads
MEMOREX CORP34 citations92
US4644641AFeb 24, 1987
Fabrication of "Delta" magnetic head-sliders
MEMOREX CORP52 citations92
US4517616AMay 14, 1985
Thin film magnetic recording transducer having embedded pole piece design
MEMOREX CORP31 citations92
US4254189AMar 3, 1981
Disc having substrate, intermediate layer and magnetically sensitive layer wherein intermediate layer has melting point less than annealing temperature of substrate but higher than processing temperature of magnetically sensitive layer
MEMOREX CORP29 citations92
US4436593AMar 13, 1984
Self-aligned pole tips
MEMOREX CORP44 citations91
US4356918ANov 2, 1982
Disc storage container
MEMOREX CORP65 citations91
US4285019AAug 18, 1981
Contoured magnetic recording head/slider assembly
MEMOREX CORP39 citations87
US4030132AJun 14, 1977
Dual mode velocity servo control for a linear actuator motor
MEMOREX CORP47 citations87
US4454014AJun 12, 1984
Etched article
MEMOREX CORP22 citations82
US4377827AMar 22, 1983
Servo positioning control system for a data storage apparatus
MEMOREX CORP25 citations82
US4612586ASep 16, 1986
Method for measuring timing asymmetry in a magnetic storage system
MEMOREX CORP20 citations81
US4107748AAug 15, 1978
Recording head support assembly
MEMOREX CORP20 citations80
US4110802AAug 29, 1978
Crash stop for disc drive actuator
MEMOREX CORP30 citations77
US4088278AMay 9, 1978
Reel for magnetic recording tape
MEMOREX CORP23 citations77
US4083509AApr 11, 1978
Reel for magnetic recording tape
MEMOREX CORP24 citations77
US4333229AJun 8, 1982
Method of manufacturing thin film magnetic head/slider combination
MEMOREX CORP28 citations76
US4371900AFeb 1, 1983
Equalization of DC null in reproducing a high density recording
MEMOREX CORP11 citations74
US4188648AFeb 12, 1980
Data security apparatus for magnetic recording disc drive
MEMOREX CORP11 citations74
US4391849AJul 5, 1983
Metal oxide patterns with planar surface
MEMOREX CORP19 citations73
US4642541AFeb 10, 1987
Track following servo for higher density disk files
MEMOREX CORP11 citations71
US4616277AOct 7, 1986
Disk drive storage system having means for compensating for seek driving forces coupled between head actuators
MEMOREX CORP8 citations71
US4351698ASep 28, 1982
Variable sloped etching of thin film heads
MEMOREX CORP11 citations71
US4179718ADec 18, 1979
Flexible magnetic recording disc drive with interlock to protect recording disc cartridge
MEMOREX CORP16 citations71
US4657816AApr 14, 1987
Ferromagnetic recording materials
MEMOREX CORP14 citations69
US4091654AMay 30, 1978
Magnetic recording member abrasion tester
MEMOREX CORP18 citations69
US4880180ANov 14, 1989
Tape reel
MEMOREX CORP16 citations68
US4686146AAug 11, 1987
Radiation-cured recording composition with bi-part lube
MEMOREX CORP13 citations68
US4327879AMay 4, 1982
Magnetic tape reel
MEMOREX CORP14 citations68
US4419257ADec 6, 1983
Magnetic coating composition
MEMOREX CORP7 citations67
US4547534AOct 15, 1985
Method to disperse fine solids without size reduction
MEMOREX CORP8 citations66
US4451819AMay 29, 1984
Method and apparatus for decoding binary data
MEMOREX CORP14 citations66
US4381526AApr 26, 1983
Velocity control system for a data storage apparatus
MEMOREX CORP16 citations66
US3990575ANov 9, 1976
Cassette container lock mechanism
MEMOREX CORP13 citations66
USD252627SAug 14, 1979
Reel for magnetic recording tape
MEMOREX CORP6 citations65
US4003086AJan 11, 1977
Dynamic loop gain alteration for data retrieval
MEMOREX CORP18 citations65
US4084200AApr 11, 1978
Magnetic disc cartridge
MEMOREX CORP17 citations63
US4581664AApr 8, 1986
Disk accessing circuitry
MEMOREX CORP5 citations62
US4556921ADec 3, 1985
Method and apparatus to improve the positioning accuracy of a tracking arm
MEMOREX CORP6 citations62
US4587714AMay 13, 1986
Manufacture of motor with split back magnet array
MEMOREX CORP4 citations61
US4577244AMar 18, 1986
Techniques for disk servo
MEMOREX CORP5 citations60
US4553181ANov 12, 1985
Disk drive positioning system providing fault-free protection against endstop head crashes by use of a passive network in the actuator driving signal path
MEMOREX CORP2 citations60
US4404238ASep 13, 1983
Precipitated alumina for use in magnetic recording disc media
MEMOREX CORP18 citations60
US3959618AMay 25, 1976
Switch actuator rocker handle
MEMOREX CORP6 citations60
US4861655AAug 29, 1989
Thermoplastic magnetic coating composition
MEMOREX CORP3 citations59
US4493778AJan 15, 1985
Water-based magnetic coating composition
MEMOREX CORP13 citations59
USD257649SDec 23, 1980
Audio cassette album
MEMOREX CORP10 citations59
US4093688AJun 6, 1978
Method of making manganese-zinc ferrite
MEMOREX CORP10 citations59
US4659627AApr 21, 1987
Magnetic recording medium with lubricant
MEMOREX CORP3 citations58
Showing the top 50 of 58 patents by PatentIndex Score.