Inventor

MINAI MASAYOSHI

JP69 patents

Patents

50 patents

US6149837ANov 21, 2000

Phenylacetylene compound and liquid crystal composition comprising the same

SUMITOMO CHEMICAL CO55 citations92

US5235068AAug 10, 1993

Process for producing acylaromatic compounds

SUMITOMO CHEMICAL CO25 citations91

US6623810B2Sep 23, 2003

Phenylacetylene compound, liquid crystal composition, and liquid crystal element produced with the same

SUMITOMO CHEMICAL CO15 citations84

US6849202B2Feb 1, 2005

Compound having phenylacetylene structure, liquid crystal composition, polymer, optically anisotropic product, optical or liquid crystal element, dibenzothiophene compound, intermediate, and process for producing the same

SUMITOMO CHEMICAL CO15 citations83

US5874593AFeb 23, 1999

Production process and intermediate of tetrazole compound

SUMITOMO CHEMICAL CO15 citations82

US6673267B2Jan 6, 2004

Phenylacetylene compound, liquid crystal composition, polymer, optically anisotropic product, and liquid crystal or optical element

SUMITOMO CHEMICAL CO7 citations74

US6277998B1Aug 21, 2001

Production process and intermediate of tetrazole compound

SUMITOMO CHEMICAL CO9 citations74

US6191289B1Feb 20, 2001

Production process and intermediate of tetrazole compound

SUMITOMO CHEMICAL CO10 citations74

US5013479AMay 7, 1991

Optically active ether derivatives, preparation process therefor, liquid crystal materials and an optical switching element

SUMITOMO CHEMICAL CO8 citations74

US5002693AMar 26, 1991

Novel optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements

SUMITOMO CHEMICAL CO5 citations74

US4970345ANov 13, 1990

Liquid crystal, liquid crystal mixture having Tau-V min mode driving with negative or zero temperature dependency

SUMITOMO CHEMICAL CO14 citations73

US5779934AJul 14, 1998

Fluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the same

SUMITOMO CHEMICAL CO7 citations73

US5707547AJan 13, 1998

Trans-olefin compounds, method for production thereof, liquid crystal composition containing the same as active ingredient, and liquid crystal element using said composition

SUMITOMO CHEMICAL CO10 citations73

US5658489AAug 19, 1997

Diphenylacetylene compound, process for preparing the same and liquid crystal composition and element comprising the same

SUMITOMO CHEMICAL CO13 citations73

US5621129AApr 15, 1997

Optically active tertiary phosphine compound, transition metal complex comprising the same as ligand and process for preparing optically active organic silicon compound using said transition metal complex

SUMITOMO CHEMICAL CO7 citations72

US5523437AJun 4, 1996

Tertiary phosphine compound and transition metal complex comprising the same as ligand

SUMITOMO CHEMICAL CO8 citations72

US4957867ASep 18, 1990

Production of cyclopentenones by enzyme resolution

SUMITOMO CHEMICAL CO10 citations72

US4082913AApr 4, 1978

Phenoxyalicyclic carboxylic acid derivatives

SUMITOMO CHEMICAL CO6 citations72

US4008265AFeb 15, 1977

Novel bisphenoxy carboxylic acid derivatives and their salts

SUMITOMO CHEMICAL CO8 citations72

US3970694AJul 20, 1976

Cycloalkyl phenoxy carboxylic acid derivatives

SUMITOMO CHEMICAL CO7 citations72

US5447659ASep 5, 1995

Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements

SUMITOMO CHEMICAL CO2 citations63

US5338484AAug 16, 1994

Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements

SUMITOMO CHEMICAL CO1 citations63

US5274168ADec 28, 1993

Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements

SUMITOMO CHEMICAL CO2 citations63

US5151542ASep 29, 1992

Process for preparing di-tert.-butyl dicarbonate

SUMITOMO CHEMICAL CO3 citations63

US4729953AMar 8, 1988

Optically active 4-hydroxy-2-cyclopentenones, and their production

SUMITOMO CHEMICAL CO3 citations63

US4542235ASep 17, 1985

Method for producing an optically active 2,2-dimethylcyclopropanecarboxylic acid

SUMITOMO CHEMICAL CO4 citations63

US4535182AAug 13, 1985

Process for preparing 2-cyclopentenone esters

SUMITOMO CHEMICAL CO2 citations63

US4511655AApr 16, 1985

Process for producing 4-cyclopentenones

SUMITOMO CHEMICAL CO6 citations63

US4496767AJan 29, 1985

Process for preparing 2-cyclopentenone derivatives

SUMITOMO CHEMICAL CO5 citations63

US6030546AFeb 29, 2000

Trans-olefin compounds, method for production thereof, liquid crystal composition containing the same as active ingredient, and liquid crystal element using said composition

SUMITOMO CHEMICAL CO4 citations62

US5762825AJun 9, 1998

Liquid crystal mixture and liquid crystal device comprising the same

SUMITOMO CHEMICAL CO3 citations62

US5662828ASep 2, 1997

Compound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display element

SUMITOMO CHEMICAL CO5 citations62

US5554317ASep 10, 1996

Compound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display element

SUMITOMO CHEMICAL CO3 citations62

US5545345AAug 13, 1996

Liquid crystal mixture and liquid crystal element comprsing the same

SUMITOMO CHEMICAL CO3 citations62

US5498721AMar 12, 1996

Process for producing thiophene derivatives

SUMITOMO CHEMICAL CO2 citations62

US5238598AAug 24, 1993

Optically active aromatic compounds, preparation process thereof, and liquid crystal compositions and elements

SUMITOMO CHEMICAL CO5 citations62

US5389293AFeb 14, 1995

Optically active benzene derivatives, process for producing the same and liquid-crystalline composition containing said derivatives as liquid-crystalline compound and light switching elements

SUMITOMO CHEMICAL CO2 citations61

US5268501ADec 7, 1993

Process for preparing haloketo acid derivatives

SUMITOMO CHEMICAL CO5 citations61

US5202467AApr 13, 1993

Process for preparing haloketo acid derivatives

SUMITOMO CHEMICAL CO4 citations61

US4812585AMar 14, 1989

Process for producing 2-aceylfuran derivatives

SUMITOMO CHEMICAL CO4 citations61

US4985590AJan 15, 1991

Optically active benzene derivatives and process for preparation thereof

SUMITOMO CHEMICAL CO3 citations60

US5659051AAug 19, 1997

Process of producing 2-cyano-4-oxo-4H-benzopyran compounds

SUMITOMO CHEMICAL CO4 citations58

US5191109AMar 2, 1993

Process for preparing optically active cyclopentenones

SUMITOMO CHEMICAL CO4 citations58

US5741438AApr 21, 1998

Optically active biphenyl derivative, process for preparation thereof, liquid crystal composition containing the same as an effective component, and liquid crystal element using the same

SUMITOMO CHEMICAL CO0 citations52

US5723610AMar 3, 1998

Alcohol reactants for forming phenylpyrimidine derivatives and process for preparing said alcohols

SUMITOMO CHEMICAL CO0 citations52

US5539115AJul 23, 1996

Phenylpyrimidine derivatives, process for preparing the same, liquid crystal composition containing said derivatives as active ingredient, and liquid crystal elements using such compositions

SUMITOMO CHEMICAL CO0 citations52

Showing the top 50 of 69 patents by PatentIndex Score.

MINAI MASAYOSHI

Patents

Phenylacetylene compound and liquid crystal composition comprising the same

Process for producing acylaromatic compounds

Phenylacetylene compound, liquid crystal composition, and liquid crystal element produced with the same

Compound having phenylacetylene structure, liquid crystal composition, polymer, optically anisotropic product, optical or liquid crystal element, dibenzothiophene compound, intermediate, and process for producing the same

Production process and intermediate of tetrazole compound

Phenylacetylene compound, liquid crystal composition, polymer, optically anisotropic product, and liquid crystal or optical element

Production process and intermediate of tetrazole compound

Production process and intermediate of tetrazole compound

Optically active ether derivatives, preparation process therefor, liquid crystal materials and an optical switching element

Novel optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements

Process for preparing oxocyclopentene derivatives

Production of cyclopentenone derivatives

Process for preparing aromatic aldehydes

Dibenzothiophene oxide compound, and process for producing the same

Liquid crystal, liquid crystal mixture having Tau-V min mode driving with negative or zero temperature dependency

Fluorine-containing optically active compound, process for preparing the same and liquid crystal mixture and liquid crystal element comprising the same

Trans-olefin compounds, method for production thereof, liquid crystal composition containing the same as active ingredient, and liquid crystal element using said composition

Diphenylacetylene compound, process for preparing the same and liquid crystal composition and element comprising the same

Optically active tertiary phosphine compound, transition metal complex comprising the same as ligand and process for preparing optically active organic silicon compound using said transition metal complex

Tertiary phosphine compound and transition metal complex comprising the same as ligand

Production of cyclopentenones by enzyme resolution

Phenoxyalicyclic carboxylic acid derivatives

Novel bisphenoxy carboxylic acid derivatives and their salts

Cycloalkyl phenoxy carboxylic acid derivatives

Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements

Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements

Optically active benzene derivatives, process for producing the same and liquid-crystalline substances containing said derivatives as active ingredient and optical switching elements

Process for preparing di-tert.-butyl dicarbonate

Optically active 4-hydroxy-2-cyclopentenones, and their production

Method for producing an optically active 2,2-dimethylcyclopropanecarboxylic acid

Process for preparing 2-cyclopentenone esters

Process for producing 4-cyclopentenones

Process for preparing 2-cyclopentenone derivatives

Trans-olefin compounds, method for production thereof, liquid crystal composition containing the same as active ingredient, and liquid crystal element using said composition

Liquid crystal mixture and liquid crystal device comprising the same

Compound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display element

Compound having unsaturated side chain, process for preparing the same, liquid crystalline polymer prepared from the same, liquid crystal mixture and display element

Liquid crystal mixture and liquid crystal element comprsing the same

Process for producing thiophene derivatives

Optically active aromatic compounds, preparation process thereof, and liquid crystal compositions and elements

Optically active benzene derivatives, process for producing the same and liquid-crystalline composition containing said derivatives as liquid-crystalline compound and light switching elements

Process for preparing haloketo acid derivatives

Process for preparing haloketo acid derivatives

Process for producing 2-aceylfuran derivatives

Optically active benzene derivatives and process for preparation thereof

Process of producing 2-cyano-4-oxo-4H-benzopyran compounds

Process for preparing optically active cyclopentenones

Optically active biphenyl derivative, process for preparation thereof, liquid crystal composition containing the same as an effective component, and liquid crystal element using the same

Alcohol reactants for forming phenylpyrimidine derivatives and process for preparing said alcohols

Phenylpyrimidine derivatives, process for preparing the same, liquid crystal composition containing said derivatives as active ingredient, and liquid crystal elements using such compositions