Inventor
IMAGAWA TAKAO
JP33 patents
⚠️ This page may combine multiple inventors who share the name “IMAGAWA TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
27 patentsUS6172859B1Jan 9, 2001
Magnetoresistive head and magnetic disk apparatus
HITACHI LTD55 citations96
US5995338ANov 30, 1999
Magnetoresistive head and magnetic disk apparatus
HITACHI LTD50 citations96
US7696662B2Apr 13, 2010
High resistance magnet and motor using the same
HITACHI LTD18 citations92
US6157526ADec 5, 2000
Magnetoresistive head and magnetic disk apparatus
HITACHI LTD35 citations92
US5726838AMar 10, 1998
Magnetic disc apparatus with head having magneto-resistance effect
HITACHI LTD23 citations92
US5668685ASep 16, 1997
Magnetic disc apparatus
HITACHI LTD25 citations92
US5436777AJul 25, 1995
Magnetoresistive head
HITACHI LTD22 citations92
US5214840AJun 1, 1993
Thin film magnetic head and the method of fabricating the same
HITACHI LTD25 citations92
US5051856ASep 24, 1991
Thin film magnetic head with mixed crystal structures
HITACHI LTD23 citations92
US6275360B1Aug 14, 2001
Read-write head
HITACHI LTD45 citations91
US7972450B2Jul 5, 2011
High resistance magnet and motor using the same
HITACHI LTD7 citations84
US7880357B2Feb 1, 2011
Sintered magnet and rotating machine equipped with the same
HITACHI LTD8 citations84
US7352184B2Apr 1, 2008
MRI apparatus with high-resistance magnet
HITACHI LTD10 citations84
US6603643B2Aug 5, 2003
Magnetoresistive head containing oxide layer
HITACHI LTD12 citations74
US5872690AFeb 16, 1999
Magnetic transducer and magnetic recording device utilizing material in which undirectional anisotropy can be formed
HITACHI LTD10 citations74
US4943883AJul 24, 1990
Quarternary amorphous magnetic alloy thin film and magnetic head including same
HITACHI LTD13 citations74
US4939610AJul 3, 1990
Thin film magnetic head having magnetic core including a thin film of cobalt alloy
HITACHI LTD14 citations74
US6120919ASep 19, 2000
Magnetic head
HITACHI LTD5 citations73
US6088196AJul 11, 2000
Magnetoresistive head and manufacturing method therefor
HITACHI LTD8 citations73
US5969910AOct 19, 1999
Magnetic head and magnetic disk apparatus provided therewith
HITACHI LTD11 citations73
US7927501B2Apr 19, 2011
Rare earth element magnet and method of manufacturing same
HITACHI LTD4 citations63
US7914695B2Mar 29, 2011
Magnet using binding agent and method of manufacturing the same
HITACHI LTD3 citations63
US7816820B2Oct 19, 2010
Compacted magnetic core with high resistance, manufacturing method thereof, and motor for electric car
HITACHI LTD2 citations63
US7806991B2Oct 5, 2010
Low loss magnet and magnetic circuit using the same
HITACHI LTD3 citations63
US5109312AApr 28, 1992
Magnetic recording apparatus and magnetic head with superconducting material
HITACHI LTD4 citations63
US6319622B1Nov 20, 2001
Magnetic head
HITACHI LTD3 citations62
US7847555B2Dec 7, 2010
MRI apparatus with high-resistance magnet
HITACHI LTD0 citations52