Inventor · disambiguated record
Kazuhiko Fukushima
Also filed as: FUKUSHIMA KAZUHIKO
49 granted patents·15 pending applications·309 citations·filing 1989–2024
97Inventor score
Files withNIDEC CORP33MITSUBISHI ELECTRIC CORP12FUKUSHIMA KAZUHIKO3HARADA TADAKATSU2MIYAKE HIDETAKA2
Top patents by PatentIndex Score
64 records- 0194US6107864ACharge pump circuitMITSUBISHI ELECTRIC CORP·Filed 1999·Granted Aug 22, 2000·142 cites·8 claims
- 0291US8879204B2Motor and disk drive apparatusNIDEC CORP·Filed 2013·Granted Nov 4, 2014·7 cites·28 claims
- 0390US7424500B2Random number generator with ring oscillation circuitRENESAS TECH CORP·Filed 2004·Granted Sep 9, 2008·45 cites·19 claims
- 0488US8260835B2Random number generator with ring oscillation circuitFUKUSHIMA KAZUHIKO·Filed 2008·Granted Sep 4, 2012·17 cites·4 claims
- 0586US8796363B2Flame retardant resin composition and molded productHARADA TADAKATSU·Filed 2012·Granted Aug 5, 2014·6 cites·7 claims
- 0685US10072672B2FanNIDEC CORP·Filed 2016·Granted Sep 11, 2018·3 cites·8 claims
- 0785US9523373B2FanNIDEC CORP·Filed 2014·Granted Dec 20, 2016·5 cites·12 claims
- 0885US9366263B2Bearing apparatus, motor, and blower fanNIDEC CORP·Filed 2013·Granted Jun 14, 2016·6 cites·18 claims
- 0984US10605782B2Wedge tapping device for rotating electrical machine, wedge inspection system for rotating electrical machine and wedge tapping method for rotating electrical machineMITSUBISHI ELECTRIC CORP·Filed 2017·Granted Mar 31, 2020·3 cites·8 claims
- 1084US8754554B2Motor and disk drive apparatusTAMAOKA TAKEHITO·Filed 2012·Granted Jun 17, 2014·6 cites·12 claims
- 1184US8416524B2Spindle motor having connecting mechanism connecting lead wire and circuit board, and storage disk drive having the sameSAICHI MASAYOSHI·Filed 2011·Granted Apr 9, 2013·11 cites·36 claims
- 1281US8582233B2Motor and disk drive apparatusNIDEC CORP·Filed 2013·Granted Nov 12, 2013·5 cites·27 claims
- 1379US11926492B2Linear transport apparatusMITSUBISHI ELECTRIC CORP·Filed 2021·Granted Mar 12, 2024·1 cites·22 claims
- 1478US9360019B2FanNIDEC CORP·Filed 2014·Granted Jun 7, 2016·4 cites·19 claims
- 1577US11831216B2Linear motor systemMITSUBISHI ELECTRIC CORP·Filed 2019·Granted Nov 28, 2023·2 cites·8 claims
- 1675US9052975B2Random number generator with ring oscillation circuitFUKUSHIMA KAZUHIKO·Filed 2012·Granted Jun 9, 2015·4 cites·3 claims
- 1775US7667360B2Rotor unit, bearing mechanism, motor, and data storage disk drive deviceNIDEC CORP·Filed 2007·Granted Feb 23, 2010·7 cites·16 claims
- 1874US10962017B2Centrifugal fanNIDEC CORP·Filed 2019·Granted Mar 30, 2021·1 cites·15 claims
- 1974US10161405B2Cooling apparatusNIDEC CORP·Filed 2014·Granted Dec 25, 2018·3 cites·20 claims
- 2072US9051938B2Fan bearing system having a fluid reservoirHIRONO TEIICHI·Filed 2012·Granted Jun 9, 2015·4 cites·7 claims
- 2171US9132553B2Robot system and method for producing a to-be-processed materialYASKAWA DENKI SEISAKUSHO KK·Filed 2012·Granted Sep 15, 2015·2 cites·18 claims
- 2270US10047755B2FanNIDEC CORP·Filed 2014·Granted Aug 14, 2018·2 cites·18 claims
- 2370US9316229B2Motor and fanNIDEC CORP·Filed 2013·Granted Apr 19, 2016·3 cites·11 claims
- 2468US9089916B2Wire electric discharge machining apparatus, wire electric discharge machining method, thin plate manufacturing method, and semiconductor wafer manufacturing methodITOKAZU ATSUSHI·Filed 2011·Granted Jul 28, 2015·3 cites·8 claims
- 2565US10559998B2Motor and disk drive apparatusNIDEC CORP·Filed 2017·Granted Feb 11, 2020·0 cites·18 claims
- 2663US9909813B2Heat moduleNIDEC CORP·Filed 2015·Granted Mar 6, 2018·1 cites·10 claims
- 2763US2018335043A1Bearing mechanism and blower fanNIDEC CORP·Filed 2018·Application pending·0 cites
- 2862US9837872B2Motor and disk drive apparatusNIDEC CORP·Filed 2014·Granted Dec 5, 2017·0 cites·19 claims
- 2962US9429165B2Bearing mechanism, motor, and blower fanNIDEC CORP·Filed 2014·Granted Aug 30, 2016·1 cites·16 claims
- 3061US9387548B2Wire-cut electrical discharge machining apparatus and semiconductor wafer manufacturing methodMIYAKE HIDETAKA·Filed 2011·Granted Jul 12, 2016·1 cites·13 claims
- 3160US9599123B2Blower fanNIDEC CORP·Filed 2013·Granted Mar 21, 2017·1 cites·11 claims
- 3259US9950379B2Wire electric discharge machining apparatusMIYAKE HIDETAKA·Filed 2010·Granted Apr 24, 2018·1 cites·4 claims
- 3359US9388827B2Blower fanNIDEC CORP·Filed 2013·Granted Jul 12, 2016·1 cites·19 claims
- 3459US2025219504A1Motor and blowerNIDEC CORP·Filed 2024·Application pending·0 cites
- 3557US10962018B2Gas dynamic pressure bearing, motor, and blowerNIDEC CORP·Filed 2020·Granted Mar 30, 2021·0 cites·10 claims
- 3655US12330880B2Linear conveyance deviceMITSUBISHI ELECTRIC CORP·Filed 2022·Granted Jun 17, 2025·0 cites·11 claims
- 3755US11682933B2Motor and fan motorNIDEC CORP·Filed 2019·Granted Jun 20, 2023·0 cites·14 claims
- 3855US2014369839A1Bearing mechanism and blower fanNIDEC CORP·Filed 2014·Application pending·0 cites
- 3955US2013050872A1Motor and disk drive apparatusSEKII YOICHI·Filed 2012·Application pending·0 cites
- 4054US2013038964A1Spindle motor having connecting mechanism connecting lead wire and circuit board, and storage disk drive having the sameWESTERN DIGITAL TECH INC·Filed 2012·Application pending·0 cites
- 4153US6732998B2Method of forming laminated core and electromagnetic type valve driving deviceMITSUBISHI ELECTRIC CORP·Filed 2002·Granted May 11, 2004·4 cites·10 claims
- 4250US11136988B2Gas dynamic bearing, motor, and blower apparatusNIDEC CORP·Filed 2020·Granted Oct 5, 2021·0 cites·19 claims
- 4349US2022374206A1Semiconductor device and method for verifying random number dataRENESAS ELECTRONICS CORP·Filed 2022·Application pending·0 cites
- 4448US9341214B2Sleeve, fluid dynamic pressure bearing including the sleeve, spindle motor including the fluid dynamic pressure bearing and electronic equipment including the spindle motorNIDEC CORP·Filed 2014·Granted May 17, 2016·0 cites·16 claims
- 4548US2020309191A1Gas dynamic pressure bearing, motor, and fan motorNIDEC CORP·Filed 2020·Application pending·0 cites
- 4648US2019264695A1Centrifugal fanNIDEC CORP·Filed 2019·Application pending·0 cites
- 4748US2019264697A1Centrifugal fanNIDEC CORP·Filed 2019·Application pending·0 cites
- 4848US2014212303A1Blower fanNIDEC CORP·Filed 2013·Application pending·0 cites
- 4948US2019264696A1Centrifugal fanNIDEC CORP·Filed 2019·Application pending·0 cites
- 5047US9599122B2Blower fanNIDEC CORP·Filed 2013·Granted Mar 21, 2017·0 cites·19 claims
Showing the top 50 of 64 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →