Inventor · disambiguated record
Hiroshi Sakakima
Also filed as: SAKAKIMA HIROSHI
79 granted patents·8 pending applications·2,154 citations·filing 1980–2004
99Inventor score
Top patents by PatentIndex Score
87 records- 0198US6436526B1Magneto-resistance effect element, magneto-resistance effect memory cell, MRAM and method for performing information write to or read from the magneto-resistance effect memory cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 20, 2002·167 cites·49 claims
- 0297US6767655B2Magneto-resistive elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 27, 2004·84 cites·62 claims
- 0397US5715121AMagnetoresistance element, magnetoresistive head and magnetoresistive memoryMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Feb 3, 1998·168 cites·20 claims
- 0496US6567246B1Magnetoresistance effect element and method for producing the same, and magnetoresistance effect type head, magnetic recording apparatus, and magnetoresistance effect memory elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 20, 2003·114 cites·28 claims
- 0595US5691936AMagnetoresistive element and memory elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 25, 1997·126 cites·23 claims
- 0692US6982932B2Recording/reproducing head and recording/reproducing apparatus incorporating the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jan 3, 2006·28 cites·5 claims
- 0792US6198610B1Magnetoresistive device and magnetoresistive headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 6, 2001·45 cites·22 claims
- 0892US6111782AMagnetoresistance effect device, and magnetoresistance effect type head, memory device, and amplifying device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Aug 29, 2000·55 cites·20 claims
- 0992US4288260AMethod of heat treatments of amorphous alloy ribbonsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1980·Granted Sep 8, 1981·51 cites·7 claims
- 1090US6258470B1Exchange coupling film, magnetoresistance effect device, magnetoresistance effective head and method for producing exchange coupling filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jul 10, 2001·67 cites·40 claims
- 1189US7163755B2Magneto-resistive elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jan 16, 2007·30 cites·15 claims
- 1288US6680831B2Magnetoresistive element, method for manufacturing the same, and method for forming a compound magnetic thin filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 20, 2004·32 cites·27 claims
- 1388US6400537B2Thin film magnetic headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jun 4, 2002·48 cites·7 claims
- 1487US6717780B2Magnetoresistive device and/or multi-magnetoresistive deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 6, 2004·33 cites·25 claims
- 1587US6005798AMagnetoresistance effect device, and magnetoresistance effect type head, memory device, and amplifying device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Dec 21, 1999·55 cites·22 claims
- 1685US5841611AMagnetoresistance effect device and magnetoresistance effect type head, memory device, and amplifying device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Nov 24, 1998·86 cites·60 claims
- 1785US5028280ASoft magnetic alloy films having a modulated nitrogen contentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Jul 2, 1991·33 cites·5 claims
- 1885US4904543ACompositionally modulated, nitrided alloy films and method for making the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Feb 27, 1990·46 cites·33 claims
- 1985US4488195AMagnetic head and method of producing sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Dec 11, 1984·28 cites·8 claims
- 2084US4670972AMethod for making magnetic headsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1983·Granted Jun 9, 1987·25 cites·7 claims
- 2183US6597547B1Magnetoresistive device with an α-Fe2O3 antiferromagnetic film and indirect exchange coupling film layers of differing thicknessMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jul 22, 2003·33 cites·8 claims
- 2283US4836865AMagnetic nitride filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1987·Granted Jun 6, 1989·26 cites·5 claims
- 2382US6785100B2Magnetic head comprising a multilayer magnetoresistive device and a yoke for introducing magnetic flux from a medium to the magnetoresistive deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 31, 2004·13 cites·27 claims
- 2482US6528326B1Magnetoresistive device and method for producing the same, and magnetic componentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Mar 4, 2003·21 cites·8 claims
- 2582US6256222B1Magnetoresistance effect device, and magnetoresistaance effect type head, memory device, and amplifying device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 3, 2001·28 cites·9 claims
- 2682US6031692AMagnetoresistive device and magnetoresistive headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Feb 29, 2000·38 cites·33 claims
- 2781US6538297B2Magneto-resistive device and magneto-resistive effect type storage deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Mar 25, 2003·31 cites·19 claims
- 2881US5243316AMagnetoresistance effect elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Sep 7, 1993·35 cites·10 claims
- 2980US6608738B2Magnetoresistance effect device utilizing an oxide film to produce antiferromagnetic exchange-coupling between first and second magnetic films in either the pinned layer or the free layer of the deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 19, 2003·29 cites·28 claims
- 3079US6594120B2Magnetoresistive element and magnetic memory element and magnetic head using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 15, 2003·22 cites·30 claims
- 3179US6562486B2Exchange coupling film, magnetoresistance effect device, magnetoresistance effective head and method for producing exchange coupling filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 13, 2003·20 cites·25 claims
- 3277US6771473B2Magnetoresistive element and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 3, 2004·17 cites·12 claims
- 3377US6077618AMagneto-resistance effect element, magneto-resistance effect type head, memory element, and method for manufacturing themSHIMADZU CORP·Filed 1997·Granted Jun 20, 2000·41 cites·14 claims
- 3477US5459687AMemory elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Oct 17, 1995·39 cites·11 claims
- 3577US5403457AMethod for making soft magnetic filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Apr 4, 1995·25 cites·11 claims
- 3676US7018725B2Magneto-resistance effect element magneto-resistance effect memory cell, MRAM, and method for performing information write to or read from the magneto-resistance effect memory cellMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Mar 28, 2006·19 cites·55 claims
- 3776US6798620B2Magneto-resistive element, magnetic head, and magnetic recording and reproduction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 28, 2004·9 cites·20 claims
- 3876US4578728AMagnetic headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1982·Granted Mar 25, 1986·19 cites·8 claims
- 3976US4437912AAmorphous magnetic alloysMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1981·Granted Mar 20, 1984·19 cites·4 claims
- 4074US6084752AThin film magnetic headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jul 4, 2000·23 cites·33 claims
- 4173US5262248ASoft magnetic alloy filmsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Nov 16, 1993·21 cites·2 claims
- 4273US5084795AMagnetic head and method of manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Jan 28, 1992·22 cites·7 claims
- 4371US6778425B1Magnetoresistance effect memory device and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 17, 2004·19 cites·51 claims
- 4471US6504796B1Magneto-optical head having thickness of the core same as a track widthMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jan 7, 2003·6 cites·27 claims
- 4568US6555889B2Magnetoresistive device and magnetic componentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 29, 2003·10 cites·9 claims
- 4668US5049209AMagnetic nitride filmMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Sep 17, 1991·14 cites·1 claims
- 4767US7042686B2Magnetoresistive element and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 9, 2006·9 cites·10 claims
- 4866US6887717B2Magnetoresistive device and method for producing the same, and magnetic componentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 3, 2005·8 cites·2 claims
- 4963US6639765B2Magnetoresistive element and magnetoresistive device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Oct 28, 2003·8 cites·12 claims
- 5062US6535362B2Magnetoresistive device having a highly smooth metal reflective layerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Mar 18, 2003·15 cites·41 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Hiroshi Sakakima 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 →