Inventor · disambiguated record
Kingo Kiyonaga
Also filed as: KIYONAGA KINGO
4 granted patents·80 citations·filing 1975–1978
78Inventor score
Files withHITACHI METALS LTD4
Top patents by PatentIndex Score
4 records- 0187US4116684AHigh speed tool steel having high toughnessHITACHI METALS LTD·Filed 1977·Granted Sep 26, 1978·29 cites·5 claims
- 0279US4032302ACarbide enriched high speed tool steelHITACHI METALS LTD·Filed 1975·Granted Jun 28, 1977·22 cites·14 claims
- 0364US4058650ABack material of metal band saw high in fatigue strengthHITACHI METALS LTD·Filed 1976·Granted Nov 15, 1977·22 cites·20 claims
- 0445US4218243AFully martensitic steel for a metal mold for molding glass and the metal moldHITACHI METALS LTD·Filed 1978·Granted Aug 19, 1980·7 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →