Inventor · disambiguated record
Sumiko Watabe
Also filed as: WATABE SUMIKO
4 granted patents·49 citations·filing 1990–1992
76Inventor score
Files withMITSUBISHI CHEM IND4
Top patents by PatentIndex Score
4 records- 0181US5059355AProcess for preparation of crystalline oxytitanium phthalocyanineMITSUBISHI CHEM IND·Filed 1990·Granted Oct 22, 1991·28 cites·7 claims
- 0255US5338633AElectrophotographic photoreceptorMITSUBISHI CHEM IND·Filed 1992·Granted Aug 16, 1994·6 cites·30 claims
- 0353US5284728AElectrophotographic photoreceptor containing hydrazone compoundsMITSUBISHI CHEM IND·Filed 1992·Granted Feb 8, 1994·10 cites·13 claims
- 0439US5037714AElectrophotographic photoreceptorMITSUBISHI CHEM IND·Filed 1990·Granted Aug 6, 1991·5 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →