Inventor · disambiguated record
Ken Hirota
Also filed as: HIROTA KEN
17 granted patents·1 pending application·374 citations·filing 1984–2018
94Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD12DOSHISHA2MITSUBA CORP2PANASONIC IP MAN CO LTD1THE DOSHISHA1
Top patents by PatentIndex Score
18 records- 0194US5352522AComposite material comprising metallic alloy grains coated with a dielectric substanceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Oct 4, 1994·109 cites·8 claims
- 0293US5183631AComposite material and a method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Feb 2, 1993·91 cites·14 claims
- 0390US5350628AMagnetic sintered composite materialMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Sep 27, 1994·58 cites·15 claims
- 0487US10128720B2Electric motor and electric pumpMITSUBA CORP·Filed 2013·Granted Nov 13, 2018·9 cites·17 claims
- 0580US5238507AMagnetic materialMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Aug 24, 1993·35 cites·15 claims
- 0680US4901179AMagnetic head having a laminated structureMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Feb 13, 1990·24 cites·5 claims
- 0778US9902654B2ZrO2-Al2O3-based ceramic sintered compact and production method thereofTHE DOSHISHA·Filed 2016·Granted Feb 27, 2018·2 cites·7 claims
- 0872US4900393AProcess for producing single-crystal ceramicsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Feb 13, 1990·23 cites·9 claims
- 0968US7893000B2Boron carbide ceramic and manufacturing method thereofDOSHISHA·Filed 2010·Granted Feb 22, 2011·1 cites·9 claims
- 1065US7799715B2Boron carbide ceramic and manufacturing method thereofDOSHISHA·Filed 2008·Granted Sep 21, 2010·1 cites·8 claims
- 1161US11056258B2Magnetic material and production method thereforPANASONIC IP MAN CO LTD·Filed 2016·Granted Jul 6, 2021·0 cites·12 claims
- 1253US5034285AMagnetic headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1988·Granted Jul 23, 1991·8 cites·6 claims
- 1349US2019241173A1Drive control device and drive control methodMITSUBA CORP·Filed 2018·Application pending·0 cites
- 1438US5073214AMagnetic material for a magnetic headMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Dec 17, 1991·4 cites·6 claims
- 1533US5164264AComposite substrateMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Nov 17, 1992·3 cites·2 claims
- 1632US5104739ALaminated magnetic material and method of producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1989·Granted Apr 14, 1992·2 cites·1 claims
- 1732US4521323APolycrystalline ferrite and a magnetic head using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1984·Granted Jun 4, 1985·4 cites·4 claims
- 1831US5217818ASubstrate material for magnetic head and magnetic head using sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Jun 8, 1993·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →