Inventor
MACHITA TAKAHIKO
JP49 patents
⚠️ This page may combine multiple inventors who share the name “MACHITA TAKAHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
31 patentsUS8049997B2Nov 1, 2011
Magnetoresistive element including a pair of free layers coupled to a pair of shield layers
TDK CORP22 citations93
US7974048B2Jul 5, 2011
Magneto-resistive effect device of CPP type having shield layers coupled with ferromagnetic layers
TDK CORP22 citations93
US7869165B2Jan 11, 2011
Magnetic field detecting element having stack with a plurality of free layers and side shield layers
TDK CORP26 citations93
US8369048B2Feb 5, 2013
CPP-type thin film magnetic head provided with side shields including a pair of antimagnetically exchanged-coupled side shield magnetic layers
TDK CORP23 citations92
US7615996B1Nov 10, 2009
Examination method for CPP-type magnetoresistance effect element having two free layers
TDK CORP30 citations92
US7881023B2Feb 1, 2011
Magnetoresistive device of the CPP type, and magnetic disk system
TDK CORP10 citations84
US7869166B2Jan 11, 2011
Thin film magnetic head having a bias magnetic layer provided with antiferromagnetic layer and a pinned layer provided with hard magnetic layer
TDK CORP12 citations84
US7843668B2Nov 30, 2010
Magnetoresistive element including two ferromagnetic layers
TDK CORP9 citations84
US8891208B2Nov 18, 2014
CPP-type magnetoresistive element including a rear bias structure and lower shields with inclined magnetizations
TDK CORP8 citations83
US7558027B2Jul 7, 2009
Magnetic field sensor provided with an upper shield layer having portions with different magnetostriction
TDK CORP7 citations74
US8896974B2Nov 25, 2014
Thin film magnetic head with side layers under compression stress
TDK CORP5 citations72
US8913349B2Dec 16, 2014
CPP-type magnetoresistance effect element and magnetic disk device using side shield layers
TDK CORP4 citations71
US8040641B2Oct 18, 2011
Magneto-resistance effect element with a stacked body having a constricted shape
TDK CORP6 citations63
US8023230B2Sep 20, 2011
Magnetoresistive element including a pair of ferromagnetic layers coupled to a pair of shield layers
TDK CORP5 citations63
US7944650B2May 17, 2011
Magnetoresistive element including layered film touching periphery of spacer layer
TDK CORP2 citations63
US7929257B2Apr 19, 2011
Magnetic thin film having spacer layer that contains CuZn
TDK CORP5 citations63
US7916429B2Mar 29, 2011
Magnetic field detecting element having thin stack with a plurality of free layers and thick bias magnetic layer
TDK CORP4 citations63
US7911744B2Mar 22, 2011
Magneto-resistive effect device and magnetic disk system with refilled insulation layer in contact with a read end face of a cap layer
TDK CORP2 citations63
US7876535B2Jan 25, 2011
Magnetoresistive device of the CPP type, and magnetic disk system
TDK CORP6 citations63
US7764471B2Jul 27, 2010
Magneto-resistance effect element having diffusion blocking layer and thin-film magnetic head
TDK CORP2 citations63
US7739787B2Jun 22, 2010
Method of manufacturing a magnetoresistive element
TDK CORP4 citations63
US7733612B2Jun 8, 2010
GMR device of the CPP structure, thin-film magnetic head, head gimbal assembly, and hard disk system
TDK CORP2 citations63
US7583478B2Sep 1, 2009
Thin-film magnetic head, head gimbal assembly, head arm assembly and magnetic disk drive
TDK CORP2 citations63
US7542233B2Jun 2, 2009
Perpendicular magnetic recording element, thin film magnetic head, magnetic head device, and magnetic recording/reproducing apparatus for reducing deleterious effects of external magnetic fields
TDK CORP6 citations63
US7881021B2Feb 1, 2011
CPP type magnetoresistive device with biasing arrangement for ferromagnetic layers having respective magnetizations orthogonal to one another, and magnetic disk system using same
TDK CORP3 citations62
US7948718B2May 24, 2011
Magnetoresistive head having an insulating layer with a particular compressive stress
TDK CORP1 citations52
US7551407B2Jun 23, 2009
Thin-film magnetic head, head gimbal assembly and hard disk drive
TDK CORP1 citations52
US9129622B2Sep 8, 2015
CPP-type magnetoresistance effect element and magnetic disk device
TDK CORP1 citations51
US7916431B2Mar 29, 2011
Magnetoresistive element including insulating film touching periphery of spacer layer
TDK CORP0 citations42
US9767834B1Sep 19, 2017
Magnetic head comprising magneto-resistance effect element and side shields
TDK CORP0 citations41
US7947188B2May 24, 2011
Method for manufacturing CPP-type magnetoresistance effect element
TDK CORP0 citations41
MIYAUCHI DAISUKE
3 patentsUS8089734B2Jan 3, 2012
Magnetoresistive element having a pair of side shields
MIYAUCHI DAISUKE26 citations92
US8225489B2Jul 24, 2012
Method of manufacturing magnetoresistive element having a pair of free layers
MIYAUCHI DAISUKE10 citations84
US8144437B2Mar 27, 2012
Magnetoresistive element and thin film magnetic head
MIYAUCHI DAISUKE19 citations84
YANAGISAWA TAKUMI
2 patentsKAWAMORI KEITA
2 patentsHARA SHINJI
2 patentsAYUKAWA TOSHIYUKI
2 patentsUS8094420B2Jan 10, 2012
Magnetoresistive device of the CCP (current perpendicular to plane) type with single-domain control of magnetization, and associated magnetic disk system
AYUKAWA TOSHIYUKI6 citations71
US8149546B2Apr 3, 2012
Magnetic field detecting element including tri-layer stack with stepped portion
AYUKAWA TOSHIYUKI3 citations60