Inventor · disambiguated record
Hideki Kuwajima
Also filed as: KUWAJIMA HIDEKI
78 granted patents·8 pending applications·986 citations·filing 1983–2019
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD64PANASONIC CORP8TDK CORP8HASHI HIDEYUKI2KUWAJIMA HIDEKI2
Top patents by PatentIndex Score
86 records- 0198US7265929B2Method of controlling an actuator, and disk apparatus using the same methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Sep 4, 2007·170 cites·19 claims
- 0296US7832056B2Opening-closing devicePANASONIC CORP·Filed 2007·Granted Nov 16, 2010·71 cites·11 claims
- 0393US6826018B2Disk drive with head supporting deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 30, 2004·37 cites·21 claims
- 0493US6618220B2Head actuator and hard disc drive including the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Sep 9, 2003·47 cites·31 claims
- 0592US6785096B2Head supporting mechanismMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 31, 2004·32 cites·26 claims
- 0691US7317271B2Fluid bearing motor, and disk drive mounted with sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Jan 8, 2008·11 cites·3 claims
- 0790US6917498B2Head support mechanism and thin film piezoelectric actuatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 12, 2005·18 cites·8 claims
- 0890US6751064B2Head supporting device and disk drive using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jun 15, 2004·29 cites·37 claims
- 0989US7072149B2Head support mechanism and thin film piezoelectric actuatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 4, 2006·18 cites·17 claims
- 1087US7031099B2Head positioner and information recording/replaying apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 18, 2006·22 cites·50 claims
- 1186US7146623B2Head support device and it's driving method, and drive disk using sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 5, 2006·20 cites·59 claims
- 1286US7072150B2Head support mechanism and thin film piezoelectric actuatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 4, 2006·12 cites·16 claims
- 1385US7847194B2Opening and closing devicePANASONIC CORP·Filed 2007·Granted Dec 7, 2010·11 cites·2 claims
- 1484US7564691B2Opening and closing mechanism, and electronic devicePANASONIC CORP·Filed 2006·Granted Jul 21, 2009·10 cites·28 claims
- 1583US8780501B2Head support mechanism with counter balance and centroid adjustment padsKUWAJIMA HIDEKI·Filed 2012·Granted Jul 15, 2014·7 cites·5 claims
- 1683US6950285B2Head arm assembly with an arm motion limiting member and disk drive device with the head arm assemblyTDK CORP·Filed 2003·Granted Sep 27, 2005·16 cites·24 claims
- 1782US6831807B2Head positioner and disk drive using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Dec 14, 2004·20 cites·16 claims
- 1881US7814619B2Opening and closing devicePANASONIC CORP·Filed 2006·Granted Oct 19, 2010·11 cites·10 claims
- 1980US7813123B2Opening and closing devicePANASONIC CORP·Filed 2008·Granted Oct 12, 2010·7 cites·1 claims
- 2080US6965492B2Rotor 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
- 2180US6833974B2Head positioning device and disk drive using sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Dec 21, 2004·17 cites·15 claims
- 2279US7119992B2Disk drive system with inertial arm preventing shockMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Oct 10, 2006·11 cites·9 claims
- 2379US7068474B2Thin film piezoelectric element; actuator, head support mechanism, and disc recording and reproducing device using the thin film piezoelectric element; and method of manufacturing the thin film piezoelectric elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 27, 2006·14 cites·15 claims
- 2479US7035054B2Magnetic head apparatus, magnetic head supporting mechanism and magnetic recording apparatus having an improved impact resistanceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Apr 25, 2006·13 cites·32 claims
- 2579US7006335B2Head support mechanism and thin film piezoelectric actuatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Feb 28, 2006·13 cites·16 claims
- 2679US6735053B2Disk drive system with internal arm for preventing shockMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 11, 2004·11 cites·2 claims
- 2779US4661864AMagnetic recording and reproducing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Apr 28, 1987·23 cites·3 claims
- 2878US7312955B2Disk drive piezoelectric actuator with coupling portion extending across a slit between flexible substratesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Dec 25, 2007·12 cites·16 claims
- 2978US7230798B2Head support device and disk drive using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jun 12, 2007·12 cites·12 claims
- 3078US7106557B2Head supporting mechanismMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 12, 2006·10 cites·11 claims
- 3178US6912760B2Method of manufacturing a thin film piezoelectric elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jul 5, 2005·13 cites·14 claims
- 3276US8289654B2Head assembly, magnetic disk drive apparatus and rotation mechanismKUWAJIMA HIDEKI·Filed 2010·Granted Oct 16, 2012·4 cites·11 claims
- 3376US7245456B2Head support device and disk drive using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jul 17, 2007·10 cites·29 claims
- 3476US7068469B2Head supporting assembly, head driving assembly, and disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 27, 2006·12 cites·19 claims
- 3575US7342743B2Shock-absorbing member, shock-absorbing method of electronic device employing the member, and electronic device adapting the member and the methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Mar 11, 2008·15 cites·26 claims
- 3675US6963473B2Head arm assembly and disk drive device with the head arm assembly having enhanced impact resistanceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 8, 2005·10 cites·24 claims
- 3774US7218479B2Head support device with bearing and elastic memberMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted May 15, 2007·9 cites·45 claims
- 3873US7046485B2Piezoelectric actuator, disk drive using the same and manufacturing method thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted May 16, 2006·9 cites·9 claims
- 3972US7804665B2Head support device, disk device having the head support device, and portable electronic device having the disk devicePANASONIC CORP·Filed 2005·Granted Sep 28, 2010·2 cites·8 claims
- 4072US7088557B2Head supporting device and disk drive unit using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 8, 2006·8 cites·29 claims
- 4171US6943990B1Head support mechanism, information recording/reproducing apparatus, and method of manufacturing head support mechanismMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Sep 13, 2005·22 cites·68 claims
- 4270US7141911B2Driving method of piezoelectric actuator, piezoelectric actuator, and disk recording and reproducing apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 28, 2006·7 cites·22 claims
- 4370US7027267B2Head support mechanism and thin film piezoelectric actuatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Apr 11, 2006·8 cites·16 claims
- 4469US7193820B2Head actuator having dummy weight used to coincide mass and swing movement centersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Mar 20, 2007·1 cites·7 claims
- 4569US7110221B2Disk driveMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 19, 2006·7 cites·29 claims
- 4668US7855856B2Disk device employing a CSS system head supporting unitPANASONIC CORP·Filed 2005·Granted Dec 21, 2010·1 cites·15 claims
- 4767US7046484B2Magnetic head supporting device having dummy weight used to coincide mass and swing movement centersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted May 16, 2006·5 cites·14 claims
- 4867US6178156B1Disk recording and reproduction apparatus and dynamic damper thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jan 23, 2001·23 cites·4 claims
- 4965US9076469B1Head assemblyTDK CORP·Filed 2015·Granted Jul 7, 2015·2 cites·16 claims
- 5064US7084536B2Fluid bearing motor, and disk drive mounted with sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 1, 2006·7 cites·26 claims
Showing the top 50 of 86 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →