Inventor
TOKUHARA KOKI
JP9 patents
⚠️ This page may combine multiple inventors who share the name “TOKUHARA KOKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO SPEC METALS
6 patentsUS5788782AAug 4, 1998
R-FE-B permanent magnet materials and process of producing the same
SUMITOMO SPEC METALS39 citations92
US6461565B2Oct 8, 2002
Method of pressing rare earth alloy magnetic powder
SUMITOMO SPEC METALS22 citations91
US6696015B2Feb 24, 2004
Method for producing rare-earth magnet
SUMITOMO SPEC METALS17 citations81
US5387291AFeb 7, 1995
Process for producing alloy powder material for R-Fe-B permanent magnets and alloy powder for adjusting the composition therefor
SUMITOMO SPEC METALS16 citations73
US6511631B2Jan 28, 2003
Powder compacting apparatus and method of producing a rare-earth magnet using the same
SUMITOMO SPEC METALS6 citations71
US6247660B1Jun 19, 2001
Process for hydrogen-pulverizing a rare earth metal-based magnetic material, and hydrogen-pulverizing case
SUMITOMO SPEC METALS12 citations71