Inventor · disambiguated record
Masaji Harakawa
Also filed as: HARAKAWA MASAJI
3 granted patents·116 citations·filing 1982–1992
73Inventor score
Files withSUMITOMO CHEMICAL CO3
Top patents by PatentIndex Score
3 records- 0191US5224970AAbrasive materialSUMITOMO CHEMICAL CO·Filed 1992·Granted Jul 6, 1993·101 cites·15 claims
- 0251US5002750AProcess for producing alumina-based fiberSUMITOMO CHEMICAL CO·Filed 1989·Granted Mar 26, 1991·10 cites·1 claims
- 0335US4495121AProcess for producing inorganic fiberSUMITOMO CHEMICAL CO·Filed 1982·Granted Jan 22, 1985·5 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →