Inventor
HIROTA KOICHI
JP83 patents
⚠️ This page may combine multiple inventors who share the name “HIROTA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHINETSU CHEMICAL CO
22 patentsUS7559996B2Jul 14, 2009
Rare earth permanent magnet, making method, and permanent magnet rotary machine
SHINETSU CHEMICAL CO36 citations93
US6960240B2Nov 1, 2005
Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet
SHINETSU CHEMICAL CO34 citations93
US6322637B1Nov 27, 2001
Thin ribbon of rare earth-based permanent magnet alloy
SHINETSU CHEMICAL CO16 citations93
US6319335B1Nov 20, 2001
Quenched thin ribbon of rare earth/iron/boron-based magnet alloy
SHINETSU CHEMICAL CO16 citations93
US9892831B2Feb 13, 2018
R-Fe—B sintered magnet and making method
SHINETSU CHEMICAL CO11 citations84
US8377233B2Feb 19, 2013
Preparation of rare earth permanent magnet material
SHINETSU CHEMICAL CO12 citations84
US7955443B2Jun 7, 2011
Method for preparing rare earth permanent magnet material
SHINETSU CHEMICAL CO8 citations84
US7531933B2May 12, 2009
Permanent magnet rotating machine
SHINETSU CHEMICAL CO16 citations84
US7488395B2Feb 10, 2009
Functionally graded rare earth permanent magnet
SHINETSU CHEMICAL CO8 citations84
US7485193B2Feb 3, 2009
R-FE-B based rare earth permanent magnet material
SHINETSU CHEMICAL CO13 citations84
US10410775B2Sep 10, 2019
R—Fe—B sintered magnet and making method
SHINETSU CHEMICAL CO7 citations83
US7204891B2Apr 17, 2007
Remelting of rare earth magnet scrap and/or sludge, magnet-forming alloy, and sintered rare earth magnet
SHINETSU CHEMICAL CO8 citations74
US6419723B2Jul 16, 2002
Thin ribbon of rare earth-based permanent magnet alloy
SHINETSU CHEMICAL CO9 citations74
US10937578B2Mar 2, 2021
Method for preparing R—Fe—B sintered magnet
SHINETSU CHEMICAL CO3 citations73
US10515747B2Dec 24, 2019
R-Fe-B sintered magnet and making method
SHINETSU CHEMICAL CO2 citations73
US9742248B2Aug 22, 2017
Method for assembling rotor for use in IPM rotary machine
SHINETSU CHEMICAL CO2 citations73
US7488393B2Feb 10, 2009
Rare earth permanent magnet
SHINETSU CHEMICAL CO7 citations73
US8012269B2Sep 6, 2011
Nd-Fe-B rare earth permanent magnet material
SHINETSU CHEMICAL CO5 citations63
US7988795B2Aug 2, 2011
R-T-B—C rare earth sintered magnet and making method
SHINETSU CHEMICAL CO6 citations63
US7883587B2Feb 8, 2011
Method for preparing rare earth permanent magnet
SHINETSU CHEMICAL CO2 citations63
US12172211B2Dec 24, 2024
Method for producing magnetic refrigeration material, and magnetic refrigeration material
SHINETSU CHEMICAL CO0 citations62
US11806782B2Nov 7, 2023
Method for producing magnetic refrigeration material, and magnetic refrigeration material
SHINETSU CHEMICAL CO0 citations62
AISIN SEIKI
14 patentsUS7770967B2Aug 10, 2010
Head rest device
AISIN SEIKI25 citations92
US7029054B2Apr 18, 2006
Outside handle device
AISIN SEIKI31 citations92
US7140653B2Nov 28, 2006
Outside handle apparatus and connector mechanism
AISIN SEIKI20 citations87
US9156439B2Oct 13, 2015
Automatic opening and closing apparatus of opening and closing member for vehicle and structural member included in vehicle
AISIN SEIKI8 citations84
US7031814B2Apr 18, 2006
Occupant protection apparatus for vehicle
AISIN SEIKI13 citations83
US6998969B2Feb 14, 2006
Door lock apparatus for vehicle
AISIN SEIKI11 citations83
US6717290B2Apr 6, 2004
Vehicular door latch operation control device
AISIN SEIKI16 citations83
US6445147B1Sep 3, 2002
Movable body control system for vehicle
AISIN SEIKI14 citations82
US7064456B2Jun 20, 2006
Door lock release device
AISIN SEIKI10 citations73
US6881912B2Apr 19, 2005
Door open/close operating device
AISIN SEIKI7 citations73
US6976726B2Dec 20, 2005
Outside handle device for a vehicle door
AISIN SEIKI10 citations72
US6015449AJan 18, 2000
Rain drop detecting device
AISIN SEIKI11 citations70
US7866745B2Jan 11, 2011
Vehicle seat
AISIN SEIKI5 citations63
US7568544B2Aug 4, 2009
Occupant protection device for vehicle
AISIN SEIKI5 citations63
NAKAMURA HAJIME
3 patentsUS8231740B2Jul 31, 2012
Method for preparing rare earth permanent magnet material
NAKAMURA HAJIME10 citations84
US8211327B2Jul 3, 2012
Preparation of rare earth permanent magnet material
NAKAMURA HAJIME6 citations84
US8075707B2Dec 13, 2011
Method for preparing rare earth permanent magnet material
NAKAMURA HAJIME7 citations84
NIPPON CATALYTIC CHEM IND
3 patentsUS6392084B1May 21, 2002
Method for production of organic fluorine compound
NIPPON CATALYTIC CHEM IND6 citations74
US4769492ASep 6, 1988
Method for production of 2,3,4,5-tetrafluorobenzoic acid
NIPPON CATALYTIC CHEM IND15 citations72
US5144066ASep 1, 1992
Method of producing naphthalenedicarboxylic acids and diaryldicarboxylic acids
NIPPON CATALYTIC CHEM IND12 citations70
DOI YUHITO
2 patentsHIROTA KOICHI
2 patentsOKADA TAKASHI
1 patentWATANABE NAOKI
1 patentMIYAJIMA TAKAYUKI
1 patentLINTEC CORP
1 patentShowing the top 50 of 83 patents by PatentIndex Score.