Inventor · disambiguated record
Kazuo Shiiki
Also filed as: SHIIKI KAZUO
39 granted patents·1,084 citations·filing 1980–2004
98Inventor score
Top patents by PatentIndex Score
39 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
- 0891US4743491APerpendicular magnetic recording medium and fabrication method thereforHITACHI LTD·Filed 1985·Granted May 10, 1988·46 cites·33 claims
- 0989US6011674AMagnetoresistance effect multilayer film with ferromagnetic film sublayers of different ferromagnetic material compositionsHITACHI LTD·Filed 1996·Granted Jan 4, 2000·33 cites·6 claims
- 1089US4651248AThin-film magnetic headHITACHI LTD·Filed 1983·Granted Mar 17, 1987·34 cites·8 claims
- 1188US4748089AMultilayered ferromagnetic amorphous alloy film and magnetic head employing the sameHITACHI LTD·Filed 1984·Granted May 31, 1988·30 cites·17 claims
- 1288US4539616AThin film magnetic head and fabricating method thereofHITACHI LTD·Filed 1982·Granted Sep 3, 1985·31 cites·13 claims
- 1387US6839200B2Combination 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
- 1487US6538844B2Method of fabricating a magnetic head by focused ion beam etchingHITACHI LTD·Filed 2002·Granted Mar 25, 2003·13 cites·5 claims
- 1586US6483677B2Magnetic disk apparatus including magnetic head having multilayered reproducing element using tunneling effectHITACHI LTD·Filed 2001·Granted Nov 19, 2002·11 cites·6 claims
- 1684US5126907AThin 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
- 1783US4631612AMagnetic recording and reproducing systemSHIIKI KAZUO·Filed 1983·Granted Dec 23, 1986·29 cites·9 claims
- 1880US4306908AFerromagnetic amorphous alloyHITACHI LTD·Filed 1980·Granted Dec 22, 1981·20 cites·11 claims
- 1979US6278593B1Magnetoresistance effect elements and magnetic heads using the tunneling magnetoresistive effectHITACHI LTD·Filed 1999·Granted Aug 21, 2001·17 cites·64 claims
- 2078US5461517AMagneto-resistance effect type of recording/reproducing headHITACHI LTD·Filed 1994·Granted Oct 24, 1995·27 cites·20 claims
- 2178US4760481AThin film magnetic head having an improved coilHITACHI LTD·Filed 1986·Granted Jul 26, 1988·25 cites·6 claims
- 2275US5463518AMagnetic head and magnetic recording and reproducing apparatus using a superconducting quantum interference deviceHITACHI LTD·Filed 1991·Granted Oct 31, 1995·24 cites·30 claims
- 2374US4621030APerpendicular magnetic recording medium and manufacturing method thereofHITACHI LTD·Filed 1983·Granted Nov 4, 1986·24 cites·33 claims
- 2473US4576876AMagnetic recording mediumHITACHI LTD·Filed 1984·Granted Mar 18, 1986·23 cites·16 claims
- 2573US4411716AAmorphous alloys for magnetic head core and video magnetic head using sameHITACHI LTD·Filed 1981·Granted Oct 25, 1983·16 cites·15 claims
- 2670US6307707B1Narrow track thin film head including magnetic poles machined by focused ion beam etchingHITACHI LTD·Filed 2000·Granted Oct 23, 2001·4 cites·5 claims
- 2770US6278578B1Narrow track thin film head having a focused ion beam etched air bearing surfaceHITACHI LTD·Filed 2000·Granted Aug 21, 2001·4 cites·4 claims
- 2869US7054120B2Magnetic 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
- 2969US4922360AMagnetic headHITACHI LTD·Filed 1988·Granted May 1, 1990·15 cites·5 claims
- 3063US4907114AMangeto-resistive type read headHITACHI LTD·Filed 1988·Granted Mar 6, 1990·12 cites·6 claims
- 3162US6975110B2Magnetic sensor utilizing magnetoresistance effect, method for driving magnetic sensor utilizing magnetoresistance effect and magnetic recording systemsUNIV KEIO·Filed 2004·Granted Dec 13, 2005·11 cites·5 claims
- 3260US6111723ANarrow 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
- 3360US4943879AThin film magnetic head including magnetic layers having high saturation magnetic flux density and metal film for avoiding deterioration during manufacturingHITACHI LTD·Filed 1987·Granted Jul 24, 1990·11 cites·17 claims
- 3460US4762755AFerromagnetic material and a magnetic head using the same materialHITACHI LTD·Filed 1984·Granted Aug 9, 1988·14 cites·25 claims
- 3557US6665141B2Magnetic head having track width defined by trench portions filled with magnetic shield materialHITACHI LTD·Filed 2003·Granted Dec 16, 2003·1 cites·5 claims
- 3657US4420348AAmorphous alloy for magnetic head coreHITACHI LTD·Filed 1981·Granted Dec 13, 1983·10 cites·6 claims
- 3756US5083226AMagnetic disk driveHITACHI LTD·Filed 1989·Granted Jan 21, 1992·9 cites·19 claims
- 3856US4766039AMagnetic head made from amorphous magnetic filmHITACHI LTD·Filed 1986·Granted Aug 23, 1988·9 cites·19 claims
- 3950US5719729AMagnetic head and recording and reproducing apparatus having an arrangement for improving coincidence between a magnetic center of a read head and physical center of a write headHITACHI LTD·Filed 1992·Granted Feb 17, 1998·8 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →