Inventor · disambiguated record
Seizi Isoyama
Also filed as: ISOYAMA SEIZI
4 granted patents·61 citations·filing 1977–1979
78Inventor score
Files withDOWA MINING CO4
Top patents by PatentIndex Score
4 records- 0174US4120807AProcess for producing hexagonal-system ferrite powderDOWA MINING CO·Filed 1977·Granted Oct 17, 1978·17 cites·7 claims
- 0273US4226843AProcess and apparatus for production of spherical grain ferrite powderDOWA MINING CO·Filed 1979·Granted Oct 7, 1980·16 cites·17 claims
- 0359US4352717AApparatus for production of spherical grain ferrite powderDOWA MINING CO·Filed 1978·Granted Oct 5, 1982·17 cites·3 claims
- 0459US4120806AHexagonal-system ferrite powder, composite plastic-ferrite magnet comprising same and process for production thereofDOWA MINING CO·Filed 1978·Granted Oct 17, 1978·11 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →