Inventor
HAMADA TAKAKI
JP11 patents
⚠️ This page may combine multiple inventors who share the name “HAMADA TAKAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO SPEC METALS
9 patentsUS5316595AMay 31, 1994
Process for producing magnets having improved corrosion resistance
SUMITOMO SPEC METALS44 citations94
US4837114AJun 6, 1989
Process for producing magnets having improved corrosion resistance
SUMITOMO SPEC METALS82 citations94
US4942098AJul 17, 1990
Corrosion resistant permanent magnet
SUMITOMO SPEC METALS24 citations92
US4770702ASep 13, 1988
Process for producing the rare earth alloy powders
SUMITOMO SPEC METALS40 citations92
US4769063ASep 6, 1988
Method for producing rare earth alloy
SUMITOMO SPEC METALS21 citations81
US4767450AAug 30, 1988
Process for producing the rare earth alloy powders
SUMITOMO SPEC METALS21 citations81
US4959273ASep 25, 1990
Corrosion-resistant permanent magnet and method for preparing the same
SUMITOMO SPEC METALS22 citations78
US4968529ANov 6, 1990
Process for producing a corrosion resistant permanent magnet
SUMITOMO SPEC METALS13 citations73
US4898613AFeb 6, 1990
Rare earth alloy powder used in production of permanent magnets
SUMITOMO SPEC METALS7 citations73