Inventor · disambiguated record
Eijin Moriwaki
Also filed as: MORIWAKI EIJIN
19 granted patents·681 citations·filing 1986–2003
96Inventor score
Top patents by PatentIndex Score
19 records- 0198US5390061AMultilayer magnetoresistance effect-type magnetic headHITACHI LTD·Filed 1991·Granted Feb 14, 1995·156 cites·27 claims
- 0296US5168409AIntegrated magnetic head having a magnetic layer functioning as both a magnetic shield and a magnetic poleHITACHI LTD·Filed 1990·Granted Dec 1, 1992·93 cites·32 claims
- 0396US4881144AThin film magnetic headHITACHI LTD·Filed 1988·Granted Nov 14, 1989·77 cites·12 claims
- 0495US6687099B2Magnetic head with conductors formed on endlayers of a multilayer film having magnetic layer coercive force differenceHITACHI LTD·Filed 2002·Granted Feb 3, 2004·33 cites·10 claims
- 0594US5850326ANarrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layerHITACHI LTD·Filed 1994·Granted Dec 15, 1998·45 cites·77 claims
- 0694US5726837AMultilayer magnetoresistance effect-type magnetic headHITACHI LTD·Filed 1994·Granted Mar 10, 1998·43 cites·24 claims
- 0792US4814921AMultilayered magnetic films and thin-film magnetic heads using the same as a poleHITACHI LTD·Filed 1988·Granted Mar 21, 1989·61 cites·18 claims
- 0889US6011674AMagnetoresistance effect multilayer film with ferromagnetic film sublayers of different ferromagnetic material compositionsHITACHI LTD·Filed 1996·Granted Jan 4, 2000·33 cites·6 claims
- 0987US6839200B2Combination perpendicular magnetic head having shield material formed at both ends of an upper pole of a write elementHITACHI LTD·Filed 2003·Granted Jan 4, 2005·12 cites·2 claims
- 1087US6538844B2Method of fabricating a magnetic head by focused ion beam etchingHITACHI LTD·Filed 2002·Granted Mar 25, 2003·13 cites·5 claims
- 1186US6483677B2Magnetic disk apparatus including magnetic head having multilayered reproducing element using tunneling effectHITACHI LTD·Filed 2001·Granted Nov 19, 2002·11 cites·6 claims
- 1284US5126907AThin film magnetic head having at least one magnetic core member made at least partly of a material having a high saturation magnetic flux densityHITACHI LTD·Filed 1990·Granted Jun 30, 1992·38 cites·23 claims
- 1379US6278593B1Magnetoresistance effect elements and magnetic heads using the tunneling magnetoresistive effectHITACHI LTD·Filed 1999·Granted Aug 21, 2001·17 cites·64 claims
- 1478US4760481AThin film magnetic head having an improved coilHITACHI LTD·Filed 1986·Granted Jul 26, 1988·25 cites·6 claims
- 1570US6307707B1Narrow track thin film head including magnetic poles machined by focused ion beam etchingHITACHI LTD·Filed 2000·Granted Oct 23, 2001·4 cites·5 claims
- 1670US6278578B1Narrow track thin film head having a focused ion beam etched air bearing surfaceHITACHI LTD·Filed 2000·Granted Aug 21, 2001·4 cites·4 claims
- 1769US7054120B2Magnetic apparatus with perpendicular recording medium and head having multilayered reproducing element using tunneling effectHITACHI GLOBAL STORAGE TECH·Filed 2003·Granted May 30, 2006·7 cites·7 claims
- 1860US6111723ANarrow track thin film magnetic head suitable for high density recording and reproducing operations and fabrication method thereof wherein an air bearing surface has at least one groove containing a non-magnetic electrically conductive layerHITACHI LTD·Filed 1998·Granted Aug 29, 2000·8 cites·39 claims
- 1957US6665141B2Magnetic head having track width defined by trench portions filled with magnetic shield materialHITACHI LTD·Filed 2003·Granted Dec 16, 2003·1 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Eijin Moriwaki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →