Inventor · disambiguated record
Chikara Ishizaka
Also filed as: ISHIZAKA CHIKARA
36 granted patents·7 pending applications·96 citations·filing 1998–2018
96Inventor score
Top patents by PatentIndex Score
43 records- 0185US9773599B2R-T-B based sintered magnetTDK CORP·Filed 2013·Granted Sep 26, 2017·5 cites·6 claims
- 0284US10242777B2Alloy for R-T-B based sintered magnet and R-T-B based sintered magnetTDK CORP·Filed 2017·Granted Mar 26, 2019·1 cites·1 claims
- 0383US10523101B2MotorTDK CORP·Filed 2017·Granted Dec 31, 2019·2 cites·20 claims
- 0482US8823478B2Rare earth sintered magnet, method for producing same, motor and automobileTANAKA SATOSHI·Filed 2011·Granted Sep 2, 2014·4 cites·4 claims
- 0581US9514869B2R-T-B based sintered magnetTDK CORP·Filed 2013·Granted Dec 6, 2016·2 cites·19 claims
- 0676US10096412B2Rare earth based magnetTDK CORP·Filed 2014·Granted Oct 9, 2018·3 cites·14 claims
- 0774US8157927B2Raw material alloy for R-T-B system sintered magnet, R-T-B system sintered magnet and production method thereofENOKIDO YASUSHI·Filed 2009·Granted Apr 17, 2012·7 cites·7 claims
- 0873US7311788B2R-T-B system rare earth permanent magnetTDK CORP·Filed 2003·Granted Dec 25, 2007·8 cites·6 claims
- 0972US10530198B2R-T-B based sintered magnet and motorTDK CORP·Filed 2016·Granted Jan 7, 2020·1 cites·15 claims
- 1072US10083783B2Rare earth based magnetTDK CORP·Filed 2014·Granted Sep 25, 2018·2 cites·5 claims
- 1172US9350203B2Rare earth sintered magnet, method for producing the same, motor, and automobileBABA FUMITAKA·Filed 2011·Granted May 24, 2016·3 cites·10 claims
- 1271US10546672B2Rare earth based magnetTDK CORP·Filed 2014·Granted Jan 28, 2020·2 cites·4 claims
- 1371US10096410B2R-T-B based sintered magnetTDK CORP·Filed 2014·Granted Oct 9, 2018·2 cites·19 claims
- 1468US7858023B2Method for producing raw material powder for rare earth sintered magnet, method for producing rare earth sintered magnet, granule and sintered bodyTDK CORP·Filed 2005·Granted Dec 28, 2010·4 cites·25 claims
- 1568US2019074114A1Alloy for r-t-b based sintered magnet and r-t-b based sintered magnetTDK CORP·Filed 2018·Application pending·0 cites
- 1665US7740716B2Rare earth sintered magnetTDK CORP·Filed 2005·Granted Jun 22, 2010·3 cites·8 claims
- 1765US2010040501A1R-T-B Based Rare Earth Permanent Magnet and Method for Production ThereofTDK CORP·Filed 2009·Application pending·0 cites
- 1864US9620268B2R-T-B based alloy strip, and R-T-B based sintered magnet and method for producing sameTDK CORP·Filed 2012·Granted Apr 11, 2017·0 cites·6 claims
- 1964US9613737B2R-T-B based sintered magnet and production method for same, and rotary machineTDK CORP·Filed 2012·Granted Apr 4, 2017·0 cites·7 claims
- 2064US8123832B2R-T-B system sintered magnetKATO EIJI·Filed 2006·Granted Feb 28, 2012·3 cites·7 claims
- 2164US7314531B2R-T-B system rare earth permanent magnetTDK CORP·Filed 2004·Granted Jan 1, 2008·8 cites·8 claims
- 2264US6811620B2R-T-B system rare earth permanent magnetTDK CORP·Filed 2004·Granted Nov 2, 2004·7 cites·5 claims
- 2362US7618497B2R-T-B based rare earth permanent magnet and method for production thereofTDK CORP·Filed 2004·Granted Nov 17, 2009·6 cites·9 claims
- 2460US7416613B2Method for compacting magnetic powder in magnetic field, and method for producing rare-earth sintered magnetTDK CORP·Filed 2005·Granted Aug 26, 2008·2 cites·4 claims
- 2559US2014335268A1Rare earth sintered magnet, method for producing same, motor and automobileTDK CORP·Filed 2014·Application pending·0 cites
- 2657US10090087B2Rare earth based magnetTDK CORP·Filed 2014·Granted Oct 2, 2018·0 cites·11 claims
- 2756US9997284B2Sintered magnetTDK CORP·Filed 2013·Granted Jun 12, 2018·0 cites·4 claims
- 2856US6833036B2Rare earth permanent magnetTDK CORP·Filed 2002·Granted Dec 21, 2004·5 cites·19 claims
- 2955US10109402B2Rare earth based magnetTDK CORP·Filed 2014·Granted Oct 23, 2018·0 cites·2 claims
- 3054US10256016B2Rare earth based magnetTDK CORP·Filed 2014·Granted Apr 9, 2019·0 cites·10 claims
- 3154US9607742B2R-T-B based alloy strip, and R-T-B based sintered magnet and method for producing sameTDK CORP·Filed 2012·Granted Mar 28, 2017·0 cites·5 claims
- 3251US10020099B2Rare earth based magnetTDK CORP·Filed 2014·Granted Jul 10, 2018·0 cites·5 claims
- 3350US9548149B2Rare earth based magnetTDK CORP·Filed 2014·Granted Jan 17, 2017·0 cites·10 claims
- 3449US7192493B2R-T-B system rare earth permanent magnet and compound for magnetTDK CORP·Filed 2003·Granted Mar 20, 2007·2 cites·6 claims
- 3548US7255752B2Method for manufacturing R-T-B system rare earth permanent magnetTDK CORP·Filed 2004·Granted Aug 14, 2007·2 cites·4 claims
- 3647US2006165550A1Raw material alloy for R-T-B system sintered magnet, R-T-B system sintered magnet and production method thereofTDK CORP·Filed 2006·Application pending·0 cites
- 3746US7955442B2Method for producing sintered magnet and alloy for sintered magnetTDK CORP·Filed 2004·Granted Jun 7, 2011·1 cites·8 claims
- 3845US2011274898A1Method for Producing Sintered Magnet and alloy for sintered magnetHIDAKA TETSUYA·Filed 2011·Application pending·0 cites
- 3944US7208056B2Rare earth sintered magnet, and method for improving mechanical strength and corrosion resistance thereofTDK CORP·Filed 2005·Granted Apr 24, 2007·0 cites·13 claims
- 4043US6310837B1Magnetic recording mediumTDK CORP·Filed 1998·Granted Oct 30, 2001·11 cites·27 claims
- 4141US7255751B2Method for manufacturing R-T-B system rare earth permanent magnetTDK CORP·Filed 2003·Granted Aug 14, 2007·0 cites·6 claims
- 4241US2007221296A1Rare Earth Sintered Magnet, Raw Material Alloy Powder For Rare Earth Sintered Magnet, And Process For Producing Rare Earth Sintered MagnetTDK CORP·Filed 2005·Application pending·0 cites
- 4339US2006207689A1Method for producing sintered rare earth element magnetIWASAKI MAKOTO·Filed 2004·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →