Inventor · disambiguated record
Takao Yoshitsugu
Also filed as: YOSHITSUGU TAKAO
21 granted patents·1 pending application·360 citations·filing 1993–2009
96Inventor score
Top patents by PatentIndex Score
22 records- 0196US6787954B2Spindle motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Sep 7, 2004·47 cites·44 claims
- 0296US6364532B1Hydrodynamic bearing and motor having the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 2, 2002·56 cites·26 claims
- 0395US7473034B2Hydrodynamic bearing device, motor, and disk driving apparatusPANASONIC CORP·Filed 2006·Granted Jan 6, 2009·20 cites·18 claims
- 0491US6717310B2Spindle motor and method for assembling the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 6, 2004·40 cites·20 claims
- 0589US8013487B2Hydrodynamic bearing device, and spindle motor and information apparatus equipped with samePANASONIC CORP·Filed 2009·Granted Sep 6, 2011·13 cites·21 claims
- 0689US6196722B1Hydrodynamic bearingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Mar 6, 2001·50 cites·10 claims
- 0788US7420309B2Spindle motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Sep 2, 2008·16 cites·4 claims
- 0877US7830637B2Hydrodynamic bearing device and disk rotation apparatusPANASONIC CORP·Filed 2009·Granted Nov 9, 2010·4 cites·14 claims
- 0977US7622837B2Hydrodynamic bearing device and spindle motor having the bearing device, and recording and/or reproducing apparatus using the spindle motorPANASONIC CORP·Filed 2006·Granted Nov 24, 2009·6 cites·19 claims
- 1076US7321178B2Spindle motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jan 22, 2008·7 cites·4 claims
- 1175US6357916B2Hydrodynamic bearing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Mar 19, 2002·28 cites·5 claims
- 1273US7535134B2Spindle motor, and recording and reproducing apparatus equipped with the samePANASONIC CORP·Filed 2006·Granted May 19, 2009·6 cites·15 claims
- 1372US7589934B2Hydrodynamic bearing device and disk rotating apparatusPANASONIC CORP·Filed 2008·Granted Sep 15, 2009·3 cites·9 claims
- 1468US7492548B2Hydrodynamic bearing device and disk rotating apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Feb 17, 2009·8 cites·8 claims
- 1561US7898129B2Spindle motor, and recording and reproducing apparatus equipped with the samePANASONIC CORP·Filed 2009·Granted Mar 1, 2011·0 cites·15 claims
- 1657US6467963B2Fluid bearing equipmentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Oct 22, 2002·17 cites·3 claims
- 1749US7940492B2Hydrodynamic bearing device, spindle motor, and recording and reproducing apparatusPANASONIC CORP·Filed 2007·Granted May 10, 2011·0 cites·18 claims
- 1845US5708520ARotating polygon mirror driving apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jan 13, 1998·11 cites·5 claims
- 1944US5906440ADynamic pressure type fluid bearing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted May 25, 1999·11 cites·8 claims
- 2042US2006029312A1Hydrodynamic bearing device, motor and disc driving apparatusKIRIYAMA HIROYUKI·Filed 2005·Application pending·0 cites
- 2140US6188152B1Motor and hard disk drive having a reduced vibration motorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Feb 13, 2001·10 cites·5 claims
- 2238US5555124ARotating polygon mirror driving apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 10, 1996·7 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →