Inventor · disambiguated record
Shigeo Obata
Also filed as: OBATA SHIGEO
18 granted patents·1 pending application·178 citations·filing 1999–2008
94Inventor score
Top patents by PatentIndex Score
19 records- 0193US6826018B2Disk drive with head supporting deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 30, 2004·37 cites·21 claims
- 0291US7317271B2Fluid bearing motor, and disk drive mounted with sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Jan 8, 2008·11 cites·3 claims
- 0381US7382076B2Spindle motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jun 3, 2008·15 cites·18 claims
- 0480US8033732B2Hydrodynamic bearing device, and spindle motor equipped with samePANASONIC CORP·Filed 2008·Granted Oct 11, 2011·4 cites·12 claims
- 0580US7435001B2Hydrodynamic bearing device, method for manufacturing the same, spindle motor and recording and reproduction apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Oct 14, 2008·8 cites·19 claims
- 0680US6965492B2Rotor assembly, information-recording/-reproducing device using the rotor assembly and method of assembling the rotor assemblyMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 15, 2005·17 cites·36 claims
- 0779US7911734B2Spindle motor with a magnetic shield plate having an inclined annular facePANASONIC CORP·Filed 2006·Granted Mar 22, 2011·4 cites·5 claims
- 0872US7787214B2Disk devicePANASONIC CORP·Filed 2006·Granted Aug 31, 2010·3 cites·8 claims
- 0972US7448805B2Thrust dynamic pressure bearing, spindle motor using thereof, and information recording/reproducing device using the spindle motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Nov 11, 2008·4 cites·9 claims
- 1070US6217218B1Hydrodynamic bearing spindle motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Apr 17, 2001·25 cites·6 claims
- 1169US7110221B2Disk driveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 19, 2006·7 cites·29 claims
- 1266US7663280B2Spindle motor and disk drive device using the samePANASONIC CORP·Filed 2006·Granted Feb 16, 2010·4 cites·11 claims
- 1365US7249363B2Spindle motor, information recording and reproducing apparatus having a spindle motor, and manufacturing method of spindle motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 24, 2007·9 cites·14 claims
- 1465US6411465B1Rotary head drum assembly with upper, lower and inner drums with cylindrical surfaces of differing outward radial positionMATSUSHITA ELECTRIC INDUSTIAL·Filed 2000·Granted Jun 25, 2002·6 cites·5 claims
- 1564US7084536B2Fluid bearing motor, and disk drive mounted with sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 1, 2006·7 cites·26 claims
- 1661US7265939B2Spindle motor and disk drive unitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 4, 2007·10 cites·14 claims
- 1760US6915557B2Method of assembling rotor structureMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 12, 2005·4 cites·6 claims
- 1850US7160031B2Thrust dynamic pressure bearing, spindle motor using the same, and information recording and reproducing apparatus using themMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jan 9, 2007·3 cites·49 claims
- 1946US2004233573A1Disk driveFiled 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →