P

Inventor

OMURA TAKASHI

JP96 patents
⚠️ This page may combine multiple inventors who share the name “OMURA TAKASHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO CHEMICAL CO

36 patents
US4833123AMay 23, 1989

Yellow dye-donor element used in thermal transfer and thermal transfer and thermal transfer sheet using it

SUMITOMO CHEMICAL CO27 citations92
US4341699AJul 27, 1982

Reactive red dye having both monochlorotriazinyl- and vinylsulfone-type reactive groups

SUMITOMO CHEMICAL CO36 citations92
US5700296ADec 23, 1997

Azo compound and a polarizing film containing the same

SUMITOMO CHEMICAL CO23 citations91
US4412948ANov 1, 1983

Reactive disazo blue dye

SUMITOMO CHEMICAL CO22 citations82
US5112971AMay 12, 1992

Anthraquinone dye compounds having fibers reactive group

SUMITOMO CHEMICAL CO8 citations74
US4975094ADec 4, 1990

Anthrapyridone compounds having vinylsulfone type fiber reactive group through triazinyl bridging group

SUMITOMO CHEMICAL CO9 citations74
US4530996AJul 23, 1985

Bisazo blue-black dye having vinylsulfone type fiber-reactive group

SUMITOMO CHEMICAL CO16 citations74
US5324329AJun 28, 1994

Reactive dye composition and dyeing or printing process using the same

SUMITOMO CHEMICAL CO9 citations73
US5077416ADec 31, 1991

Benzodifuranone compounds useful for dyeing or printing hydrophobic fiber materials and process for their production

SUMITOMO CHEMICAL CO9 citations73
US5037965AAug 6, 1991

Monoazo red dye compound having vinylsulfone type fiber reactive groups

SUMITOMO CHEMICAL CO8 citations73
US4933446AJun 12, 1990

Triphenodioxazine compounds

SUMITOMO CHEMICAL CO12 citations73
US4873321AOct 10, 1989

Monazo compounds having a triozinyl bridging group and two vinylsulfone type fiber reactive groups

SUMITOMO CHEMICAL CO11 citations73
US4841032AJun 20, 1989

Fiber reactive monoazo compounds having two vinylsulfone type fiber reactive groups in the molecule

SUMITOMO CHEMICAL CO9 citations73
US4780107AOct 25, 1988

Fiber reactive dioxazine compound having four vinylsulfone type reactive groups

SUMITOMO CHEMICAL CO12 citations73
US4720542AJan 19, 1988

Formazan blue reactive dye

SUMITOMO CHEMICAL CO10 citations73
US4698421AOct 6, 1987

Fiber-reactive disazo brown dye having vinylsulfone-type reactive group

SUMITOMO CHEMICAL CO9 citations73
US4663440AMay 5, 1987

Bisazo brown reactive dye

SUMITOMO CHEMICAL CO9 citations73
US4631341ADec 23, 1986

Anthraquinone compound having both monohalogenotriazinyl and vinylsulfone type fiber reactive groups

SUMITOMO CHEMICAL CO13 citations73
US4618671AOct 21, 1986

4-methyl-pyridone monoazo compound having both monochlorotriazinyl and vinylsulfone type fiber-reactive groups

SUMITOMO CHEMICAL CO7 citations73
US4540418ASep 10, 1985

Reactive dye composition

SUMITOMO CHEMICAL CO10 citations73
US4511507AApr 16, 1985

Monoazo compound having both monochlorotriazinyl and vinylsulfone type reactive groups

SUMITOMO CHEMICAL CO7 citations73
US6235064B1May 22, 2001

Dye containing polarizing film

SUMITOMO CHEMICAL CO13 citations72
US5530105AJun 25, 1996

Tetraskisazo compound and ink containing the compound

SUMITOMO CHEMICAL CO17 citations72
US5038415AAug 13, 1991

Disperse dye composition useful for dyeing of printing hydrophobic fiber materials: mixture of pyridone mono-azo dyes and optionally a quino-phthalone

SUMITOMO CHEMICAL CO15 citations72
US4935500AJun 19, 1990

Metallized formazan compounds having two fiber reactive groups linked by n-alkyl-containing group

SUMITOMO CHEMICAL CO17 citations72
US4837310AJun 6, 1989

Red or bluish-red fiber-reactive monoazo compound having 7-substituted amino-1-naphthol-sulfonic acid as coupling component between the chromophore and fiber reactive portions of the compound

SUMITOMO CHEMICAL CO18 citations72
US4626589ADec 2, 1986

Organic dye compound having both pyridiniotriazinyl and vinylsulfone type fiber-reactive groups

SUMITOMO CHEMICAL CO13 citations72
US4505714AMar 19, 1985

Phthalocyanine fiber reactive compound

SUMITOMO CHEMICAL CO9 citations72
US5536819AJul 16, 1996

Trisazo compounds imparting deep black color a method for dyeing by using them and an ink containing them

SUMITOMO CHEMICAL CO9 citations71
US5609796AMar 11, 1997

Dye containing polarizing film

SUMITOMO CHEMICAL CO10 citations69
US4684721AAug 4, 1987

Fiber-reactive phthalocyanine compound having both vinylsulfone type and dihalogenotriazinyl groups

SUMITOMO CHEMICAL CO2 citations63
US4464297AAug 7, 1984

Fiber reactive bisazo dye having both a vinylsulfone type reactive group and an ortho-nitrophenyl group

SUMITOMO CHEMICAL CO6 citations63
US5596083AJan 21, 1997

Monoazo compounds and method for dyeing or printing fiber materials using the same

SUMITOMO CHEMICAL CO6 citations62
US5480977AJan 2, 1996

Disazo dyes having aminobenzoylamino group

SUMITOMO CHEMICAL CO3 citations62
US5424455AJun 13, 1995

Heterocyclic compounds for making red disperse dyes

SUMITOMO CHEMICAL CO6 citations62
US5116956AMay 26, 1992

Polyazo dye compounds having vinylsulfone type and pyridinium type fiber reactive groups

SUMITOMO CHEMICAL CO4 citations62

BROTHER IND LTD

8 patents

ITO TSUYOSHI

2 patents

PENTEL KK

1 patent

Brother Kongyo Kabushiki Kaisha

1 patent

MITSUBISHI ELECTRIC CORP

1 patent

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

1 patent

Showing the top 50 of 96 patents by PatentIndex Score.