Inventor

OKAJIMA YASUHIRO

4 patents

⚠️ This page may combine multiple inventors who share the name “OKAJIMA YASUHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO METAL MINING CO

2 patents

US4681623AJul 21, 1987

Process for producing alloy powder containing rare earth metals

SUMITOMO METAL MINING CO25 citations83

US4915737AApr 10, 1990

Alloy target for manufacturing a magneto-optical recording medium

SUMITOMO METAL MINING CO7 citations69

SUMITOMO SPEC METALS

1 patent

US5281250AJan 25, 1994

Powder material for rare earth-iron-boron based permanent magnets

SUMITOMO SPEC METALS27 citations90

SUMITOMO METAL MINING CO LIMIT

1 patent

US4029498AJun 14, 1977

Process for treating manganese nodules

SUMITOMO METAL MINING CO LIMIT14 citations69