Inventor
KUNIYOSHI FUTOSHI
JP40 patents
⚠️ This page may combine multiple inventors who share the name “KUNIYOSHI FUTOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI METALS LTD
19 patentsUS7931756B2Apr 26, 2011
Method and machine of making rare-earth alloy granulated powder and method of making rare-earth alloy sintered body
HITACHI METALS LTD6 citations70
US7622010B2Nov 24, 2009
Method and apparatus for producing granulated powder of rare earth alloy and method for producing rare earth alloy sintered compact
HITACHI METALS LTD6 citations70
US9478332B2Oct 25, 2016
Method for producing R-T-B sintered magnet
HITACHI METALS LTD2 citations59
US11239011B2Feb 1, 2022
Sintered R-T-B based magnet
HITACHI METALS LTD0 citations52
US11174537B2Nov 16, 2021
R-T-B sintered magnet
HITACHI METALS LTD0 citations52
US11177069B2Nov 16, 2021
Method for producing R-T-B system sintered magnet
HITACHI METALS LTD0 citations52
US11062843B2Jul 13, 2021
Method for producing sintered R-T-B based magnet and diffusion source
HITACHI METALS LTD0 citations52
US11037724B2Jun 15, 2021
Method for producing R-T-B sintered magnet
HITACHI METALS LTD0 citations52
US10984930B2Apr 20, 2021
Method for producing sintered R—T—B based magnet and diffusion source
HITACHI METALS LTD0 citations52
US11062844B2Jul 13, 2021
Method of producing R-T-B sintered magnet
HITACHI METALS LTD0 citations50
US10923256B2Feb 16, 2021
R-T-B-based sintered magnet and method for producing same
HITACHI METALS LTD0 citations50
US10643789B2May 5, 2020
Method for producing R-T-B sintered magnet
HITACHI METALS LTD0 citations41
US10639720B2May 5, 2020
Diffusion treatment device and method for manufacturing R-T-B system sintered magnet using same
HITACHI METALS LTD0 citations41
US10847290B2Nov 24, 2020
R-T-B based sintered magnet
HITACHI METALS LTD0 citations40
US10388442B2Aug 20, 2019
R-T-B based sintered magnet and method for producing R-T-B based sintered magnet
HITACHI METALS LTD0 citations39
US10242781B2Mar 26, 2019
Method for manufacturing R-T-B based sintered magnet
HITACHI METALS LTD0 citations39
US10658108B2May 19, 2020
Method for producing R-T-B based sintered magnet
HITACHI METALS LTD0 citations37
US10446306B2Oct 15, 2019
Method for manufacturing R-T-B based sintered magnet
HITACHI METALS LTD0 citations37
US10217562B2Feb 26, 2019
Method for manufacturing R-T-B based sintered magnet
HITACHI METALS LTD0 citations37
KUNIYOSHI FUTOSHI
10 patentsUS8317941B2Nov 27, 2012
R-T-B-type sintered magnet and method for production thereof
KUNIYOSHI FUTOSHI9 citations82
US9613748B2Apr 4, 2017
RH diffusion source, and method for producing R-T-B-based sintered magnet using same
KUNIYOSHI FUTOSHI2 citations72
US9415444B2Aug 16, 2016
Process for production of R-T-B based sintered magnets and R-T-B based sintered magnets
KUNIYOSHI FUTOSHI3 citations72
US9368276B2Jun 14, 2016
Method for producing R-T-B-based sintered magnets
KUNIYOSHI FUTOSHI4 citations72
US9293252B2Mar 22, 2016
R-T-B sintered magnet manufacturing method
KUNIYOSHI FUTOSHI2 citations62
US8092619B2Jan 10, 2012
R-T-Cu-Mn-B type sintered magnet
KUNIYOSHI FUTOSHI4 citations61
US9837193B2Dec 5, 2017
R-T-B sintered magnet
KUNIYOSHI FUTOSHI0 citations41
US9484151B2Nov 1, 2016
Method of producing R-T-B sintered magnet
KUNIYOSHI FUTOSHI0 citations41
US8317937B2Nov 27, 2012
Alloy for sintered R-T-B-M magnet and method for producing same
KUNIYOSHI FUTOSHI0 citations41
US9324494B2Apr 26, 2016
Treatment device
KUNIYOSHI FUTOSHI0 citations30
SUMITOMO SPEC METALS
3 patentsUS6482353B1Nov 19, 2002
Method for manufacturing rare earth magnet
SUMITOMO SPEC METALS6 citations73
US6511631B2Jan 28, 2003
Powder compacting apparatus and method of producing a rare-earth magnet using the same
SUMITOMO SPEC METALS6 citations71
US6344168B1Feb 5, 2002
Method of producing R-Fe-B type sintered magnet, method of preparing alloy powder material for R-Fe-B type sintered magnet, and method of preserving the same
SUMITOMO SPEC METALS4 citations62
NEOMAX CO LTD
3 patentsUS6969244B2Nov 29, 2005
Powder compacting apparatus and method of producing a rare-earth magnet using the same
NEOMAX CO LTD5 citations71
US7141126B2Nov 28, 2006
Rare earth magnet and method for manufacturing the same
NEOMAX CO LTD4 citations62
US7214343B2May 8, 2007
Method for producing granulated powder of R—FE—B type alloy and method for producing R—FE—B type alloy sintered compact
NEOMAX CO LTD5 citations60