Inventor · disambiguated record
Akira Takeshita
Also filed as: TAKESHITA AKIRA
16 granted patents·132 citations·filing 1978–1991
93Inventor score
Top patents by PatentIndex Score
16 records- 0191US4912264AMethod for producing hydroxy-containing alkylated aromatic compoundsSUMITOMO CHEMICAL CO·Filed 1987·Granted Mar 27, 1990·32 cites·12 claims
- 0280US4631341AAnthraquinone compound having both monohalogenotriazinyl and vinylsulfone type fiber reactive groupsSUMITOMO CHEMICAL CO·Filed 1984·Granted Dec 23, 1986·13 cites·4 claims
- 0375US4299771AProcess for producing anthraquinone compoundsSUMITOMO CHEMICAL CO·Filed 1980·Granted Nov 10, 1981·12 cites·15 claims
- 0466US4618671A4-methyl-pyridone monoazo compound having both monochlorotriazinyl and vinylsulfone type fiber-reactive groupsSUMITOMO CHEMICAL CO·Filed 1984·Granted Oct 21, 1986·7 cites·6 claims
- 0564US4626589AOrganic dye compound having both pyridiniotriazinyl and vinylsulfone type fiber-reactive groupsSUMITOMO CHEMICAL CO·Filed 1985·Granted Dec 2, 1986·13 cites·6 claims
- 0663US4519947AProcess for producing anthraquinone compoundsSUMITOMO CHEMICAL CO·Filed 1983·Granted May 28, 1985·7 cites·28 claims
- 0761US5166451ATreatment of hydroperoxide mixtureSUMITOMO CHEMICAL CO·Filed 1991·Granted Nov 24, 1992·7 cites·9 claims
- 0859US4292247AProcess for producing anthraquinone intermediatesSUMITOMO CHEMICAL CO·Filed 1978·Granted Sep 29, 1981·5 cites·12 claims
- 0955US4701524APyridone monoazo compound having vinylsulfone type fiber-reactive groupSUMITOMO CHEMICAL CO·Filed 1985·Granted Oct 20, 1987·5 cites·5 claims
- 1054US4511507AMonoazo compound having both monochlorotriazinyl and vinylsulfone type reactive groupsSUMITOMO CHEMICAL CO·Filed 1983·Granted Apr 16, 1985·7 cites·5 claims
- 1151US4510087AProcess for producing 1,4-diaminoanthraquinone-2-sulfonic acidSUMITOMO CHEMICAL CO·Filed 1983·Granted Apr 9, 1985·4 cites·6 claims
- 1250US4843149AFiber reactive yellow dye of acetoacetonilide having vinyl sulfone-type reactive groupSUMITOMO CHEMICAL CO·Filed 1985·Granted Jun 27, 1989·4 cites·8 claims
- 1346US4607102ADioxazine fiber reactive compoundSUMITOMO CHEMICAL CO·Filed 1984·Granted Aug 19, 1986·3 cites·4 claims
- 1444US4505714APhthalocyanine fiber reactive compoundSUMITOMO CHEMICAL CO·Filed 1984·Granted Mar 19, 1985·9 cites·8 claims
- 1539US4684721AFiber-reactive phthalocyanine compound having both vinylsulfone type and dihalogenotriazinyl groupsSUMITOMO CHEMICAL CO·Filed 1986·Granted Aug 4, 1987·2 cites·5 claims
- 1621US4529406ANitrothiazolyl-monoazo-2,2,4-trimethyl-1,2,3,4-tetrahydroquinoline compounds for polyesterRES ASS OF DYESTUFF MANUFACTUR·Filed 1983·Granted Jul 16, 1985·2 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →