Inventor · disambiguated record
Norio Yoshikawa
Also filed as: YOSHIKAWA NORIO
29 granted patents·5 pending applications·343 citations·filing 1978–2021
96Inventor score
Files withTOSHIBA KK15DAIDO STEEL CO LTD5INTERMETALLICS CO LTD4OMRON TATEISI ELECTRONICS CO3DENKI ONKYO CO LTD2
Top patents by PatentIndex Score
34 records- 0194US11017803B1Disk drive with actuator assembliesTOSHIBA KK·Filed 2020·Granted May 25, 2021·6 cites·12 claims
- 0282US10566017B2Actuator block having dual sensors for detecting vibration on magnetic disk deviceTOSHIBA KK·Filed 2018·Granted Feb 18, 2020·4 cites·10 claims
- 0382US5636088AHead assembly controlling distortion due to temperature variation and disk apparatus using the head assemblyTOSHIBA KK·Filed 1994·Granted Jun 3, 1997·34 cites·2 claims
- 0481US6034834AHead driving device and method for driving the same for reducing error due to actuator structure vibrationTOSHIBA KK·Filed 1996·Granted Mar 7, 2000·39 cites·14 claims
- 0580US11240919B2Connecting device and disk deviceTOSHIBA KK·Filed 2020·Granted Feb 1, 2022·2 cites·18 claims
- 0680US4791548ADiscrete time control apparatusOMRON TATEISI ELECTRONICS CO·Filed 1986·Granted Dec 13, 1988·55 cites·8 claims
- 0778US6493010B1Color image forming apparatus for forming a plurality of single-color images on a latent image carrierTOSHIBA KK·Filed 1999·Granted Dec 10, 2002·36 cites·10 claims
- 0874US5129963ARare earth magnet alloys with excellent hot workabilityGEN MOTORS CORP·Filed 1991·Granted Jul 14, 1992·26 cites·4 claims
- 0973US5122319AMethod of forming thin-walled elongated cylindrical compact for a magnetDAIDO STEEL CO LTD·Filed 1991·Granted Jun 16, 1992·26 cites·4 claims
- 1068US10482910B2Disk device with multi-layer flexible printed wiring board mounted to actuator blockTOSHIBA KK·Filed 2018·Granted Nov 19, 2019·2 cites·9 claims
- 1168US5402025ARotor provided with a ring-shaped magnetDAIDO STEEL CO LTD·Filed 1993·Granted Mar 28, 1995·30 cites·4 claims
- 1268US4649262AHeating cylinder device for a molding machineOMRON TATEISI ELECTRONICS CO·Filed 1985·Granted Mar 10, 1987·26 cites·10 claims
- 1365US10614845B2Actuator assembly having dual sensors for detecting the vibration on magnetic disk deviceTOSHIBA KK·Filed 2018·Granted Apr 7, 2020·1 cites·9 claims
- 1464US10811041B2Magnetic disk drive including actuator assembly, flexible print circuit board and control circuit boardTOSHIBA KK·Filed 2019·Granted Oct 20, 2020·1 cites·12 claims
- 1560US9449758B1Powder-filling systemINTERMETALLICS CO LTD·Filed 2016·Granted Sep 20, 2016·0 cites·4 claims
- 1659US10937454B2Actuator assembly having dual sensors for detecting the vibration on magnetic disk deviceTOSHIBA KK·Filed 2020·Granted Mar 2, 2021·0 cites·13 claims
- 1757US10885936B2Actuator block having dual sensors for detecting the vibration on magnetic disk driveTOSHIBA KK·Filed 2020·Granted Jan 5, 2021·0 cites·1 claims
- 1857US9384890B2Powder-filling systemINTERMETALLICS CO LTD·Filed 2014·Granted Jul 5, 2016·0 cites·4 claims
- 1956US4243965ADeflection coilDENKI ONKYO CO LTD·Filed 1978·Granted Jan 6, 1981·7 cites·3 claims
- 2055US4963320AMethod and apparatus for producing anisotropic rare earth magnetDAIDO STEEL CO LTD·Filed 1990·Granted Oct 16, 1990·16 cites·20 claims
- 2153US7042671B2Disk apparatus and actuator holding methodTOKYO SHIBAURA ELECTRIC CO·Filed 2003·Granted May 9, 2006·2 cites·6 claims
- 2253US4181908ADeflection coilDENKI ONKYO CO LTD·Filed 1978·Granted Jan 1, 1980·6 cites·2 claims
- 2353US2015364251A1Sintered magnet production methodINTERMETALLICS CO LTD·Filed 2014·Application pending·0 cites
- 2452US5399311ARadial anisotropic ring magnet with a sinusoidal waveform and producing method thereofDAIDO STEEL CO LTD·Filed 1992·Granted Mar 21, 1995·12 cites·3 claims
- 2551US2015371774A1Sintered magnet production system and sintered magnet production methodINTERMETALLICS CO LTD·Filed 2014·Application pending·0 cites
- 2651US2023338223A1Movement supporting device, movement supporting method, and programOMRON TATEISI ELECTRONICS CO·Filed 2021·Application pending·0 cites
- 2748US2009002882A1Disk drive unitTOSHIBA KK·Filed 2008·Application pending·0 cites
- 2847US8882960B2Substrate treating apparatus and substrate treating methodYOSHIKAWA NORIO·Filed 2012·Granted Nov 11, 2014·1 cites·11 claims
- 2947US6522853B2Image printing method and image printing apparatusTOSHIBA KK·Filed 2001·Granted Feb 18, 2003·3 cites·19 claims
- 3044USD310189SAutomobile tireKUBOTA LTD·Filed 1987·Granted Aug 28, 1990·4 cites·1 claims
- 3143US6615011B2Electrophotographic image printing apparatus using liquid developerTOSHIBA KK·Filed 2001·Granted Sep 2, 2003·2 cites·19 claims
- 3242US2004212925A1Disc deviceTOSHIBA KK·Filed 2004·Application pending·0 cites
- 3339US9358587B2Substrate treating apparatusDAINIPPON SCREEN MFG·Filed 2013·Granted Jun 7, 2016·0 cites·4 claims
- 3431US5342574AMethod for producing anisotropic rare earth magnetDAIDO STEEL CO LTD·Filed 1993·Granted Aug 30, 1994·2 cites·4 claims
Join the waitlist — get patent alerts
Get an alert when Norio Yoshikawa 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 →