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Hirokazu Sawamoto
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Minoo, JP
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last 30 patents
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Patent Grant
Fiber reactive polyazo dye having two vinylsulfone type reactive gr...
Patent number
5,053,494
Issue date
Oct 1, 1991
Sumitomo Chemical Company, Limited
Takashi Omura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Triphenodioxazine compounds
Patent number
4,933,446
Issue date
Jun 12, 1990
Sumitomo Chemical Company, Limited
Hirokazu Sawamoto
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Fiber reactive yellow dye of acetoacetonilide having vinyl sulfone-...
Patent number
4,843,149
Issue date
Jun 27, 1989
Sumitomo Chemical Company, Limited
Yutaka Kayane
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Dioxazine compound having vinylsulfone type fiber reactive group
Patent number
4,841,048
Issue date
Jun 20, 1989
Sumitomo Chemical Company, Limited
Hirokazu Sawamoto
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Fiber reactive dioxazine compound having four vinylsulfone type rea...
Patent number
4,780,107
Issue date
Oct 25, 1988
Sumitomo Chemical Company, Limited
Hirokazu Sawamoto
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Pyridone monoazo compound having vinylsulfone type fiber-reactive g...
Patent number
4,701,524
Issue date
Oct 20, 1987
Sumitomo Chemical Company, Limited
Yutaka Kayane
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Fiber-reactive disazo brown dye having vinylsulfone-type reactive g...
Patent number
4,698,421
Issue date
Oct 6, 1987
Sumitomo Chemical Company, Limited
Yutaka Kayane
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
4-methyl-pyridone monoazo compound having both monochlorotriazinyl...
Patent number
4,618,671
Issue date
Oct 21, 1986
Sumitomo Chemical Company, Limited
Yutaka Kayane
D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...