Inventor
EZAKI JOICHIRO
JP33 patents
⚠️ This page may combine multiple inventors who share the name “EZAKI JOICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
31 patentsUS6137652AOct 24, 2000
Thin film magnetic head with separated yoke and pole tips
TDK CORP26 citations93
US6930911B2Aug 16, 2005
Magnetic memory device, method for writing on the same and method for reading from the same
TDK CORP24 citations92
US5978176ANov 2, 1999
Magnetic head for a magnetic disk having a slider with indented portions for providing heat dissipation
TDK CORP27 citations92
US5094898AMar 10, 1992
Magnetic recording medium comprising a glass substrate of controlled surface roughness and a magnetic thin film layer of gamma Fe2 O3
TDK CORP27 citations92
US5080948AJan 14, 1992
Magnetic recording/reproducing system comprising a glass substrate thin film magnetic disk and a flying magnetic head with defined spacing and surface roughness
TDK CORP45 citations92
US4928195AMay 22, 1990
Improved floating magnetic head for high density recording
TDK CORP24 citations92
US6996001B2Feb 7, 2006
Magnetic memory device, write current drive circuit, and write current drive method
TDK CORP13 citations84
US7209380B2Apr 24, 2007
Magnetic memory device and method of reading the same
TDK CORP15 citations83
US4908727AMar 13, 1990
Disk with substrate of alumina silicate resin glass
TDK CORP20 citations82
US4803577AFeb 7, 1989
Vertical magnetic recording system using rigid disk
TDK CORP17 citations82
US7295460B2Nov 13, 2007
Magnetic memory cell, magnetic memory device, and method of manufacturing magnetic memory device
TDK CORP7 citations74
US7227771B2Jun 5, 2007
Magnetoresistive effect element and magnetic memory device
TDK CORP8 citations74
US7016221B2Mar 21, 2006
Magnetoresistive effect element, magnetic memory device and method of fabricating the same
TDK CORP7 citations74
US6515835B2Feb 4, 2003
Precise positioning actuator actuator for precisely positioning thin-film magnetic head element and head gimbal assembly with the actuator
TDK CORP9 citations74
US5847899ADec 8, 1998
Magnetic disk recording and reproducing apparatus
TDK CORP7 citations74
US4939604AJul 3, 1990
Magnetic recording and reproducing apparatus and a magnetic head used for the apparatus
TDK CORP15 citations74
US4918556AApr 17, 1990
Magnetic disk recording and reproducing apparatus
TDK CORP16 citations74
US4797765AJan 10, 1989
Thin film magnetic head having solder-bonded protective plate
TDK CORP13 citations74
US7277320B2Oct 2, 2007
Magnetic memory device, sense amplifier circuit and method of reading from magnetic memory device
TDK CORP7 citations73
US5545988AAug 13, 1996
Waveform signal processor with selective sampling
TDK CORP11 citations73
US4893203AJan 9, 1990
Magnetic head
TDK CORP14 citations73
US4564877AJan 14, 1986
Magnetic recording/reproducing system with wide-gapped transducer and method for using same
TDK CORP7 citations73
US5268799ADec 7, 1993
Magnetic recording and reproducing apparatus
TDK CORP2 citations63
US5072320ADec 10, 1991
Magnetic recording and reproducing apparatus having improved durability
TDK CORP5 citations63
US4901175AFeb 13, 1990
Magnetic head supporting device
TDK CORP3 citations63
US7342822B2Mar 11, 2008
Magnetic memory device, write current driver circuit and write current driving method
TDK CORP5 citations62
US7230843B2Jun 12, 2007
Magnetic memory device and writing method of the same
TDK CORP4 citations62
US4562502ADec 31, 1985
Optical reproducing system
TDK CORP3 citations62
US7808813B2Oct 5, 2010
Magnetic memory cell reading apparatus
TDK CORP0 citations52
US7522450B2Apr 21, 2009
Magnetic storage cell, magnetic memory device and magnetic memory device manufacturing method
TDK CORP0 citations52
US7349244B2Mar 25, 2008
Magnetic memory device
TDK CORP0 citations52