Patents by Inventor Taeko Aizawa

Taeko Aizawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8124304
    Abstract: The invention provides a dye-containing curable composition that has the property of high sensitivity, and that even when formed into a thin film at high dye concentration, excels in patternability, and is free from dye elution and ensures high productivity; and a color filter making use of the dye-containing curable composition and a method for producing the same. The dye-containing curable composition contains an organic-solvent-soluble dye (A) and a curing agent (C), wherein a content of the organic-solvent-soluble dye (A) is 45% by mass or more based on a total solid content and a content of the curing agent (C) is 20% by mass to 55% by mass based on the total solid content.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: February 28, 2012
    Assignee: Fujifilm Corporation
    Inventors: Taeko Aizawa, Katsumi Araki
  • Patent number: 7794917
    Abstract: According to the present invention, there is provided a curable composition, containing a compound (A) having at least one ethylenically unsaturated double bond, a photopolymerization initiator (B), a coloring agent (C), an alkali-soluble resin (D), and a compound (E) having in the molecule a partial structure of urethane, amide or urea.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: September 14, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Hisahiro Mori, Taeko Aizawa
  • Patent number: 7740995
    Abstract: A pyrimidine azo compound represented by the following formula (I), or a tautomer thereof: wherein in formula (I), R1 represents a heterocyclic group, and R2 represents a hydrogen atom or a substituent; R3, R4, R5, R6, R7, and R8 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an alkylsulphonyl group, an arylsulphonyl group, or a sulfamoyl group; and R3 and R4, R5 and R6; and R7 and R8 may be mutually bonded to form a 5-, 6-, or 7-membered ring.
    Type: Grant
    Filed: July 28, 2006
    Date of Patent: June 22, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Taeko Aizawa, Yuki Mizukawa, Nobuo Seto
  • Publication number: 20090049624
    Abstract: The invention provides a dye-containing curable composition that has the property of high sensitivity, and that even when formed into a thin film at high dye concentration, excels in patternability, and is free from dye elution and ensures high productivity; and a color filter making use of the dye-containing curable composition and a method for producing the same. The dye-containing curable composition contains an organic-solvent-soluble dye (A) and a curing agent (C), wherein a content of the organic-solvent-soluble dye (A) is 45% by mass or more based on a total solid content and a content of the curing agent (C) is 20% by mass to 55% by mass based on the total solid content.
    Type: Application
    Filed: March 31, 2006
    Publication date: February 26, 2009
    Applicant: FUJIFILM CORPORATION
    Inventors: Taeko Aizawa, Katsumi Araki
  • Publication number: 20080076043
    Abstract: According to the present invention, there is provided a curable composition, containing a compound (A) having at least one ethylenically unsaturated double bond, a photopolymerization initiator (B), a coloring agent (C), an alkali-soluble resin (D), and a compound (E) having in the molecule a partial structure of urethane, amide or urea.
    Type: Application
    Filed: September 10, 2007
    Publication date: March 27, 2008
    Applicant: FUJIFILM CORPORATION
    Inventors: Hisahiro MORI, Taeko AIZAWA
  • Publication number: 20070231745
    Abstract: A method for producing a lithographic printing plate comprising: imagewise exposing a lithographic printing plate precursor comprising: a hydrophilic support; a photosensitive layer containing a radical polymerizable compound having an isocyanuric acid group, a binder polymer having an acid value of 0.3 meq/g or less, a sensitizing dye having an absorption maximum in a wavelength range of from 360 to 450 nm and a polymerization initiator; and a protective layer in this order with a laser beam of from 360 to 450 nm; and rubbing a surface of the exposed lithographic printing plate precursor with a rubbing member in a presence of a developer having pH of from 2 to 10 in an automatic processor equipped with the rubbing member to remove the protective layer and an unexposed area of the photosensitive layer.
    Type: Application
    Filed: March 21, 2007
    Publication date: October 4, 2007
    Applicant: FUJIFILM Corporation
    Inventors: Hidekazu Oohashi, Taeko Aizawa
  • Patent number: 7193068
    Abstract: The invention provides a pyridone azo compound represented by the following Formula (I) R1, R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, an aralkyl group having 7 to 21 carbon atoms, or a substituent having a hetero atom; at least one of R1, R3 and R4 represents a substituent having a hetero atom; R3 and R4 may be formed into a heterocycle together with a jointly bonded nitrogen atom; and R2 represents an alkyl group having 1 to 10 carbon atoms, a methoxymethyl group, or a trifluoromethyl group. The invention further provides a colorant-containing curable composition and a color filter which contain the pyridone azo compound of Formula (I) and/or a tautomer thereof as a colorant.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: March 20, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsumi Araki, Taeko Aizawa
  • Publication number: 20070037076
    Abstract: A pyrimidine azo compound represented by the following formula (I), or a tautomer thereof: wherein in formula (I), R1 represents a heterocyclic group, and R2 represents a hydrogen atom or a substituent; R3, R4, R5, R6, R7, and R8 each independently represent a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, a heterocyclic group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an alkylsulphonyl group, an arylsulphonyl group, or a sulfamoyl group; and R3 and R4, R5 and R6; and R7 and R8 may be mutually bonded to form a 5-, 6-, or 7-membered ring.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 15, 2007
    Inventors: Taeko Aizawa, Yuki Mizukawa, Nobuo Seto
  • Publication number: 20060293405
    Abstract: The invention provides a pyridone azo compound represented by the following Formula (I) and a tautomer thereof. R1, R3 and R4 each independently represent a hydrogen atom, an alkyl group having 1 to 21 carbon atoms, an alkenyl group having 2 to 21 carbon atoms, an aryl group having 6 to 21 carbon atoms, an aralkyl group having 7 to 21 carbon atoms, or a substituent having a hetero atom; at least one of R1, R3 and R4 represents a substituent having a hetero atom; R3 and R4 may be formed into a heterocycle together with a jointly bonded nitrogen atom; and R2 represents an alkyl group having 1 to 10 carbon atoms, a methoxymethyl group, or a trifluoromethyl group. The invention further provides a colorant-containing curable composition and a color filter which contain the pyridone azo compound of Formula (I) and/or a tautomer thereof as a colorant.
    Type: Application
    Filed: July 11, 2005
    Publication date: December 28, 2006
    Inventors: Katsumi Araki, Taeko Aizawa