Inventor
ISHIZAKA CHIKARA
JP36 patents
⚠️ This page may combine multiple inventors who share the name “ISHIZAKA CHIKARA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TDK CORP
32 patentsUS10546672B2Jan 28, 2020
Rare earth based magnet
TDK CORP2 citations73
US10096412B2Oct 9, 2018
Rare earth based magnet
TDK CORP3 citations73
US7314531B2Jan 1, 2008
R-T-B system rare earth permanent magnet
TDK CORP8 citations73
US7311788B2Dec 25, 2007
R-T-B system rare earth permanent magnet
TDK CORP8 citations73
US10523101B2Dec 31, 2019
Motor
TDK CORP2 citations72
US10083783B2Sep 25, 2018
Rare earth based magnet
TDK CORP2 citations72
US6811620B2Nov 2, 2004
R-T-B system rare earth permanent magnet
TDK CORP7 citations72
US6310837B1Oct 30, 2001
Magnetic recording medium
TDK CORP11 citations72
US10096410B2Oct 9, 2018
R-T-B based sintered magnet
TDK CORP2 citations71
US9773599B2Sep 26, 2017
R-T-B based sintered magnet
TDK CORP5 citations70
US7618497B2Nov 17, 2009
R-T-B based rare earth permanent magnet and method for production thereof
TDK CORP6 citations63
US7858023B2Dec 28, 2010
Method for producing raw material powder for rare earth sintered magnet, method for producing rare earth sintered magnet, granule and sintered body
TDK CORP4 citations62
US7740716B2Jun 22, 2010
Rare earth sintered magnet
TDK CORP3 citations62
US7192493B2Mar 20, 2007
R-T-B system rare earth permanent magnet and compound for magnet
TDK CORP2 citations62
US10530198B2Jan 7, 2020
R-T-B based sintered magnet and motor
TDK CORP1 citations61
US7416613B2Aug 26, 2008
Method for compacting magnetic powder in magnetic field, and method for producing rare-earth sintered magnet
TDK CORP2 citations61
US7255752B2Aug 14, 2007
Method for manufacturing R-T-B system rare earth permanent magnet
TDK CORP2 citations61
US6833036B2Dec 21, 2004
Rare earth permanent magnet
TDK CORP5 citations61
US10242777B2Mar 26, 2019
Alloy for R-T-B based sintered magnet and R-T-B based sintered magnet
TDK CORP1 citations60
US9514869B2Dec 6, 2016
R-T-B based sintered magnet
TDK CORP2 citations60
US7955442B2Jun 7, 2011
Method for producing sintered magnet and alloy for sintered magnet
TDK CORP1 citations52
US7208056B2Apr 24, 2007
Rare earth sintered magnet, and method for improving mechanical strength and corrosion resistance thereof
TDK CORP0 citations52
US9997284B2Jun 12, 2018
Sintered magnet
TDK CORP0 citations51
US7255751B2Aug 14, 2007
Method for manufacturing R-T-B system rare earth permanent magnet
TDK CORP0 citations51
US9620268B2Apr 11, 2017
R-T-B based alloy strip, and R-T-B based sintered magnet and method for producing same
TDK CORP0 citations49
US9613737B2Apr 4, 2017
R-T-B based sintered magnet and production method for same, and rotary machine
TDK CORP0 citations49
US9607742B2Mar 28, 2017
R-T-B based alloy strip, and R-T-B based sintered magnet and method for producing same
TDK CORP0 citations49
US10256016B2Apr 9, 2019
Rare earth based magnet
TDK CORP0 citations41
US10109402B2Oct 23, 2018
Rare earth based magnet
TDK CORP0 citations41
US10090087B2Oct 2, 2018
Rare earth based magnet
TDK CORP0 citations41
US10020099B2Jul 10, 2018
Rare earth based magnet
TDK CORP0 citations41
US9548149B2Jan 17, 2017
Rare earth based magnet
TDK CORP0 citations41