Inventor · disambiguated record
Hirofumi Sunago
Also filed as: SUNAGO HIROFUMI
5 granted patents·65 citations·filing 1977–1992
80Inventor score
Top patents by PatentIndex Score
5 records- 0174US4116815AProcess for preparing needle coal pitch cokeNITTETSU CHEM IND CO·Filed 1977·Granted Sep 26, 1978·21 cites·15 claims
- 0271US4127472AProcess for preparing a raw material for the manufacture of needle cokeNITTETSU CHEM IND CO·Filed 1977·Granted Nov 28, 1978·20 cites·14 claims
- 0367US4631181AProcess for producing mesophase pitchNIPPON STEEL CORP·Filed 1985·Granted Dec 23, 1986·18 cites·13 claims
- 0434US5037589AMethod of producing mesophase pitch type carbon fibers and nozzle for spinning sameNIPPON STEEL CORP·Filed 1989·Granted Aug 6, 1991·4 cites·4 claims
- 0529US5370856AHigh strength carbon fiber and pre-carbonized fiberNIPPON STEEL CORP·Filed 1992·Granted Dec 6, 1994·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →