Inventor · disambiguated record
Seiji Isoyama
Also filed as: HISANO SEIICHI · ISOYAMA SEIJI
4 granted patents·37 citations·filing 1982–1992
75Inventor score
Files withDOWA MINING CO4
Top patents by PatentIndex Score
4 records- 0155US5147473APermanent magnet alloy having improved resistance to oxidation and process for production thereofDOWA MINING CO·Filed 1990·Granted Sep 15, 1992·12 cites·32 claims
- 0248US4411807ADry process for the production of hexagonal-system ferriteDOWA MINING CO·Filed 1982·Granted Oct 25, 1983·13 cites·10 claims
- 0339US5183630AProcess for production of permanent magnet alloy having improved resistence to oxidationDOWA MINING CO·Filed 1991·Granted Feb 2, 1993·7 cites·46 claims
- 0437US5269855APermanent magnet alloy having improved resistanceDOWA MINING CO·Filed 1992·Granted Dec 14, 1993·5 cites·84 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →