Patents by Inventor Keiichi Tateishi

Keiichi Tateishi 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).

  • PIGMENT DISPERSION COMPOSITION, COLORED CURABLE COMPOSITION, COLOR FILTER FOR SOLID-STATE IMAGE SENSOR AND METHOD OF PRODUCING THE SAME, AND SOLID-STATE IMAGE SENSOR
    Publication number: 20120286145
    Abstract: The invention provides a pigment dispersion composition including an azo pigment represented by formula (1), in which the azo pigment represented by formula (1) does not have an ionic hydrophilic group, an azo pigment derivative and a dispersant. In formula (1), G represents a hydrogen atom, an aliphatic group, an aryl group or a heterocyclic group; R1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group or a heterocyclic group; R2 represents a substituent; A represents a heterocyclic group; m represents an integer of 0 to 5; and n represents an integer of 1 to 4, wherein: when n=2, the azo pigment is a dimer formed via R1, R2, A or G; when n=3, the azo pigment is a a trimer formed via R1, R2, A or G; and when n=4, the azo pigment is a tetramer formed via R1, R2, A or G.
    Type: Application
    Filed: January 7, 2011
    Publication date: November 15, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Toshihito Kuge, Nobuo Seto, Masahiro Higashi, Keiichi Tateishi, Hideki Takakuwa, Kaoru Aoyagi, Hiroshi Taguchi
  • Method of producing a metal phthalocyanine compound, and method of producing a phthalocyanine compound and an analogue thereof
    Patent number: 8299240
    Abstract: A method of producing a metal phthalocyanine compound, which contains: conducting a reaction between at least two compounds selected from among Compounds A to F of formula (I), and a metal compound, in a buffer solution of an organic base or an inorganic base and an acid, in the presence of a dehydrating agent: wherein R is a hydrogen atom or a substituent; l is an integer of 0 to 4; a plurality of Rs may be the same or different from each other when l is 2 to 4; and G is a group of atoms necessary for forming at least one of a 5- or 6-membered aromatic ring and a 5- or 6-membered hetero ring.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: October 30, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Masahiko Taniguchi, Hideo Hanawa, Nobuo Seto, Kazufumi Omura
  • Azo pigment or tautomer thereof, process for producing same, pigment dispersion, coloring composition, inkjet recording ink, coloring composition for color filter, and color filter
    Patent number: 8298299
    Abstract: An azo pigment selected from the group consisting of: an azo pigment represented by the following formula (1), which has: a characteristic X-ray diffraction peak at Bragg angles (2?±0.2°) of 6.9°, 21.5°, and 27.3° in CuK? characteristic X-ray diffraction, a peak height at 11.9° of 0.6 or less relative to a peak height at 10.9° or a tautomer thereof, or a salt, hydrate, or solvate of the azo pigment or tautomer thereof; and an azo pigment represented by the following formula (1), which has: a characteristic X-ray diffraction peak at Bragg angles (2?±0.2°) of 6.9°, 25.8°, and 27.1° in CuK? characteristic X-ray diffraction, a peak height at 10.9° of 0.2 or less relative to a peak height at 11.9° or a tautomer thereof, or a salt, hydrate, or solvate of the azo pigment or tautomer thereof.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: October 30, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Masahiro Higashi, Yoshihiro Jimbo, Keiichi Tateishi
  • Azo compounds, azo pigments, pigment dispersion, coloring composition, and ink for inkjet recording
    Patent number: 8293148
    Abstract: An azo pigment showing excellent coloring characteristics such as tinctorial strength and hue and excellent fastness such as light fastness, and a pigment dispersion containing the azo pigment are provided. An azo pigment represented by the following general formula (1) and a pigment dispersion containing the pigment: wherein G represents a hydrogen atom, an aliphatic group, an aryl group, a heterocyclic group, an acyl group, an aliphatic oxycarbonyl group, a carbamoyl group, or a sulfonyl group, R1 represents an amino group, an aliphatic oxy group, an aliphatic group, an aryl group, or a heterocyclic group, R2 represents a substituent, A represents an aromatic 5- to 6-membered heterocyclic group, m represents an integer of from 0 to 5, and n represents an integer of from 1 to 4.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: October 23, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Nobuo Seto, Masahiro Higashi, Keiichi Tateishi
  • Coloring matter, ink, ink for ink jet, ink jet recording method, color toner, and color filter
    Patent number: 8262789
    Abstract: A coloring matter which has a good hue, and is capable of forming an image high in fastness property under various use conditions and environmental conditions, and particularly suitable for an ink. The coloring matter is represented by the following formula (I): wherein in the formula, G represents a heterocyclic group, and n represents an integer of 1 to 3; when n is 1, R, X, Y, Z, Q, and G each represents a monovalent group; when n is 2, R, X, Y, Z, Q, and G each represents a monovalent or divalent substituent, provided that at least one represents a divalent substituent; and when n is 3, R, X, Y, Z, Q, and G each represents a monovalent, divalent or trivalent substituent, provided that at least two each represents a divalent substituent, or at least one represents a trivalent substituent.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: September 11, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Yoshiharu Yabuki
  • Azo pigment, process for producing azo pigment, dispersion containing azo pigment, and coloring composition
    Patent number: 8236065
    Abstract: There is provided an azo pigment having excellently good color reproducibility, dispersibility, and storage stability of pigment dispersions and having excellent hue and tinctorial strength. An azo pigment represented by the following formula (1) and having characteristic peaks at Bragg angles (20±0.2°) of 7.2°, 13.4°, 15.0° and 25.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: August 7, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Yoshiaki Nagata, Shinya Hayashi
  • Azo compound, azo pigment, pigment dispersion, coloring composition, ink for inkjet recording, coloring composition for color filter, color filter, and process for preparing a coloring composition for color filter
    Patent number: 8226734
    Abstract: An azo pigment and pigment dispersion show excellent coloring characteristics and light fastness. The azo pigment is represented by general formula (1), its tautomer, a salt or hydrate thereof: wherein G is hydrogen or an aliphatic, aryl, heterocyclic, acyl, aliphatic oxycarbonyl, carbamoyl, or sulfonyl group, R1 is an amino, aliphatic oxy, aliphatic, aryl, or heterocyclic group, R2 is a substituent, A is an aromatic 5- or 6-membered heterocyclic group, m is an integer of 0 to 5, n is an integer of 1 to 4 and, when n=2, 3 or 4, the formula represents a dimer, trimer, or tetramer, respectively, formed through R1, R2, A, or G.
    Type: Grant
    Filed: July 17, 2009
    Date of Patent: July 24, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Nobuo Seto, Masahiro Higashi, Keiichi Tateishi, Hideki Takakuwa
  • Azo pigments, and pigment dispersion, coloring composition and ink for inkjet recording containing the azo pigment
    Patent number: 8222410
    Abstract: Provided is an azo pigment represented by the following general formula (1), a tautomer of the azo pigment, and a salt or a hydrate thereof: wherein Q represents the non-metallic atoms necessary to complete a 5- to 7-membered heterocyclic group, W represents an alkoxy group, an amino group, an alkyl group, or an aryl group, X1 and X2 each independently represents a hydrogen, an alkyl group, an acyl group, an alkylsulfonyl group, or an arylsulfonyl group, R1 represents a hydrogen or a substituent, R2 represents a heterocyclic group, n represents an integer of from 1 to 4 and the general formula (1) represents a dimer formed through Q, W, X1, X2, R1, or R2 when n=2, a trimer formed through Q, W, X1, X2, R1, or R2 when n=3, and a tetramer formed through Q, W, X1, X2, R1, or R2 when n=4.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: July 17, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Shinya Hayashi, Masaru Takasaki, Nobuo Seto
  • Water-based ink composition for inkjet recording
    Patent number: 8222326
    Abstract: The invention provides a water-based ink composition for inkjet recording which contains vinyl polymer particles containing a styrene-acrylic acid copolymer in which the total content of the constitutional units derived from styrene monomer, acrylic acid, and methacrylic acid is 45% by mass or more; and at least one of an azo pigment represented by Formula (1), a tautomer thereof, a salt or hydrate thereof; and a water-based liquid medium, and which is excellent in discharge stability after a long-term storage or after aging at high temperatures: wherein, Q represents a heterocyclic group; W represents an alkoxy group, an amino group etc.; X1 and X2 each independently represent a hydrogen atom, an alkyl group etc.; R1 represents a hydrogen atom or a substituent; R2 represents a heterocyclic group; and n represents an integer of 1 to 4.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: July 17, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Kiyoshi Morimoto, Keiichi Tateishi
  • PIGMENT DISPERSION CONTAINING AZO PIGMENT AND AQUEOUS INK FOR INKJET RECORDING USING THE SAME
    Publication number: 20120165436
    Abstract: A pigment dispersion including vinyl polymer particles containing A and B: A: an azo pigment represented by the following formula (1), a tautomer thereof, a salt thereof, a hydrate thereof, or a solvate thereof; B: a vinyl polymer containing a structural unit (a) having a non-aromatic alicyclic group bonded to the polymer main chain via a linking group, and a structural unit (b) having a hydrophilic group, wherein the substituents are as defined in the specification.
    Type: Application
    Filed: September 2, 2010
    Publication date: June 28, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Shigeaki Tanaka, Keiichi Tateishi, Kiyoshi Morimoto, Kaoru Tojo
  • AQUEOUS PIGMENT DISPERSION AND AQUEOUS INK FOR INK JET RECORDING
    Publication number: 20120165438
    Abstract: [Problem] To provide an aqueous ink for inkjet recording, which realizes excellent ink ejection properties, tinctorial strength, and image fastness. [Means for Resolution] An ink containing a pigment dispersion containing A and B, and an aqueous medium: A: an azo pigment represented by the following formula (1) and having at least one characteristic peak at Bragg angles (2?) of 5 to 15° and 20 to 30° in X-ray diffraction with characteristic Cu K? line; and B: a vinyl polymer containing a hydrophobic structural unit (a) and a hydrophilic structural unit (c).
    Type: Application
    Filed: September 2, 2010
    Publication date: June 28, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Keiichi Tateishi, Hiroshi Yamamoto
  • AQUEOUS PIGMENT DISPERSION AND AQUEOUS INK FOR INKJET RECORDING
    Publication number: 20120165437
    Abstract: An aqueous pigment dispersion containing A and B, wherein A is an azo pigment, an example of which is shown below, and in a crystal form having at least one characteristic peak at Bragg angles (2?) of 5 to 15° and 20 to 30° in X-ray diffraction with characteristic Cu K? line, a tautomer, a salt or hydrate thereof; and B is a vinyl polymer containing a specific structural unit, a structural unit derived from a salt-forming group-containing monomer (a), and a structural unit derived from a monomer selected from a styrene series macromer (b) and a hydrophobic monomer (c), provided that the water-insoluble vinyl polymer has at least either of 2 or more hydroxyl groups and 1 or more carboxyl groups at the end of the main chain:
    Type: Application
    Filed: September 2, 2010
    Publication date: June 28, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Keiichi Tateishi, Hiroshi Yamamoto
  • Azo pigments, pigment dispersion, coloring composition, and ink for inkjet recording
    Patent number: 8206465
    Abstract: An azo pigment showing excellent coloring characteristics such as tinctorial strength and hue and excellent fastness such as light fastness, and a pigment dispersion containing the azo pigment are provided. An azo pigment represented by the following general formula (1) and a pigment dispersion containing the pigment: Wherein Y, G, X1, X2, R1, R2 and R3 are defined in the claims and in the specification.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: June 26, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Nobuo Seto, Keiichi Tateishi
  • INK SET, RECORDING METHOD, RECORDED MATERIAL AND PRINTED MATERIAL
    Publication number: 20120156449
    Abstract: The ink set includes a yellow ink composition and either a magenta ink composition or a cyan ink composition, or both, wherein a coloring agent of the yellow ink composition is one which includes an azo pigment represented e.g. by the following formula or its tautomers or their salts or hydrates, the magenta ink composition contains as a coloring agent at least one pigment selected from the following: C.I. Pigment Violet 19, C.I. Pigment Red 122, C.I. Pigment Red 202 and C.I. Pigment Red 209, and the cyan ink composition contains as a coloring agent at least one pigment selected from the following: C.I. Pigment blue 15:1, C.I. Pigment Blue 15:2, C.I. Pigment Blue 15:3, C.I. Pigment Blue 15:4 and C.I. Pigment Blue 15:6.
    Type: Application
    Filed: September 2, 2010
    Publication date: June 21, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Keiichi Tateishi, Hiroshi Yamamoto
  • Pigment composition, inkjet recording ink, coloring composition for color filter, and color filter
    Patent number: 8202327
    Abstract: A pigment composition including (A) an azo pigment represented by formula (1), and at least one of (B) a coloring agent represented by formula (2), or (C) at least one additive represented by formula (3) or an additive represented by formula (4).
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: June 19, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Masahiro Higashi, Yoshihiro Jimbo, Keiichi Tateishi
  • AZO pigment, pigment dispersion containing the AZO pigment, and coloring composition
    Patent number: 8177861
    Abstract: An azo pigment of formula (1), a tautomer of the azo pigment, or a salt or hydrate thereof, are provided: G0 and G1 each is a non-metal atomic group which can form a 5- or 6-membered heterocyclic ring, The rings may be monocyclic or condensed and are optionally substituted. X is a hetero atom. n is an integer of 1 to 4. When n=2, 3, or 4, the compound is a dimer, trimer, or tetramer, respectively. A is a substituent. The azo pigment has excellent coloring characteristics such as high tinctorial strength and hue. It also has excellent durability including high resistance to light and ozone. A pigment dispersion containing the azo pigment and a coloring composition are also provided.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: May 15, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Yoshiaki Nagata, Nobuo Seto
  • Azo pigment, process for producing azo pigment, and dispersion and coloring composition containing azo pigment
    Patent number: 8172910
    Abstract: An object of the invention is to provide an azo pigment having extremely good dispersibility and dispersion stability and having excellent hue and tinctorial strength and, preferably, having a long axis observed with a transmission microscope of from 0.01 ?m to 30 ?m. An azo pigment which is represented by the following formula (1) and having characteristic peaks at Bragg angles (2?±0.2°) of (i) 7.6° and 25.6°, (ii) 7.0°, 26.4°, and 27.3°, or (iii) 6.4°, 26.4°, and 27.
    Type: Grant
    Filed: September 28, 2009
    Date of Patent: May 8, 2012
    Assignee: FUJIFILM Corporation
    Inventors: Keiichi Tateishi, Shinya Hayashi
  • COLORING MATTER, INK, INK FOR INK JET, INK JET RECORDING METHOD, COLOR TONER, AND COLOR FILTER
    Publication number: 20120095195
    Abstract: [Problem] To provide a coloring matter which has a good hue, and is capable of forming an image high in fastness property under various use conditions and environmental conditions, and particularly suitable for an ink. [Solving Means] A coloring matter represented by the following formula (I): wherein in the formula, G represents a heterocyclic group, and n represents an integer of 1 to 3; when n is 1, R, X, Y, Z, Q, and G each represents a monovalent group; when n is 2, R, X, Y, Z, Q, and G each represents a monovalent or divalent substituent, provided that at least one represents a divalent substituent; and when n is 3, R, X, Y, Z, Q, and G each represents a monovalent, divalent or trivalent substituent, provided that at least two each represents a divalent substituent, or at least one represents a trivalent substituent.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 19, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Keiichi Tateishi, Yoshiharu Yabuki
  • COLORING MATTER, INK, INK FOR INK JET, INK JET RECORDING METHOD, COLOR TONER, AND COLOR FILTER
    Publication number: 20120095194
    Abstract: [Problem] To provide a coloring matter which has a good hue, and is capable of forming an image high in fastness property under various use conditions and environmental conditions, and particularly suitable for an ink. [Solving Means] A coloring matter represented by the following formula (I): wherein in the formula, G represents a heterocyclic group, and n represents an integer of 1 to 3; when n is 1, R, X, Y, Z, Q, and G each represents a monovalent group; when n is 2, R, X, Y, Z, Q, and G each represents a monovalent or divalent substituent, provided that at least one represents a divalent substituent; and when n is 3, R, X, Y, Z, Q, and G each represents a monovalent, divalent or trivalent substituent, provided that at least two each represents a divalent substituent, or at least one represents a trivalent substituent.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 19, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Keiichi Tateishi, Yoshiharu Yabuki
  • COLORING MATTER, INK, INK FOR INK JET, INK JET RECORDING METHOD, COLOR TONER, AND COLOR FILTER
    Publication number: 20120088910
    Abstract: [Problem] To provide a coloring matter which has a good hue, and is capable of forming an image high in fastness property under various use conditions and environmental conditions, and particularly suitable for an ink. [Solving Means] A coloring matter represented by the following formula (I): wherein in the formula, G represents a heterocyclic group, and n represents an integer of 1 to 3; when n is 1, R, X, Y, Z, Q, and G each represents a monovalent group; when n is 2, R, X, Y, Z, Q, and G each represents a monovalent or divalent substituent, provided that at least one represents a divalent substituent; and when n is 3, R, X, Y, Z, Q, and G each represents a monovalent, divalent or trivalent substituent, provided that at least two each represents a divalent substituent, or at least one represents a trivalent substituent.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 12, 2012
    Applicant: FUJIFILM CORPORATION
    Inventors: Keiichi Tateishi, Yoshiharu Yabuki