Inventor · disambiguated record
Yasuhiro Okajima
Also filed as: OKAJIMA YASUHIRO
4 granted patents·73 citations·filing 1975–1992
78Inventor score
Top patents by PatentIndex Score
4 records- 0173US5281250APowder material for rare earth-iron-boron based permanent magnetsSUMITOMO SPEC METALS·Filed 1992·Granted Jan 25, 1994·27 cites·18 claims
- 0269US4681623AProcess for producing alloy powder containing rare earth metalsSUMITOMO METAL MINING CO·Filed 1986·Granted Jul 21, 1987·25 cites·13 claims
- 0368US4029498AProcess for treating manganese nodulesSUMITOMO METAL MINING CO LIMIT·Filed 1975·Granted Jun 14, 1977·14 cites·14 claims
- 0446US4915737AAlloy target for manufacturing a magneto-optical recording mediumSUMITOMO METAL MINING CO·Filed 1988·Granted Apr 10, 1990·7 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →