Patents by Inventor Yuki Mizukawa

Yuki Mizukawa 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).

  • Publication number: 20060051685
    Abstract: The present invention provides a negative dye-containing curable composition comprising at least (A) an alkali-soluble binder, (B) an organic solvent-soluble dye, (C) a photopolymerization initiator, (D) a radical-polymerizable monomer and (E) an organic solvent, wherein the organic solvent-soluble dye (B) comprises at least one kind of azomethine-type dye represented by the following formula (I) and at least one kind of tetraazaporphyrin-type dye represented by the following formula (A), and the photopolymerization initiator (C) is an oxime-type compound, wherein R1 represents a hydrogen atom or a substituent group; R2 to R5 each represent a hydrogen atom or a substituent group, R6 to R7 each represent an alkyl group, alkenyl group, aryl group or heterocyclic group, Za and Zb each represent —N? or —C(R8)?; R8 represents a hydrogen atom, alkyl group, aryl group or heterocyclic group; M1 represents a metal, and Z1 to Z4 each represent an atomic group forming a 6-membered ring composed of atoms selected fr
    Type: Application
    Filed: September 6, 2005
    Publication date: March 9, 2006
    Inventors: Toru Fujimori, Yuki Mizukawa
  • Publication number: 20050136343
    Abstract: The present invention provides a colored curable composition including a dye represented by the following formula (I), a color filter prepared by using the colored curable composition, and a method for manufacturing the color filter.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 23, 2005
    Inventors: Yuki Mizukawa, Toru Fujimori, Nobuo Suzuki
  • Publication number: 20050042530
    Abstract: A curable composition and a negative type color filter including a compound represented by the following formula (1). A is a residue of a five-membered heterocyclic diazo component A—NH2. B1 and B2 are each —CR1?, —CR2? or N. R5 and R6 are each H, an aliphatic group, an aromatic group, a heterocyclic group or the like. G, R1 and R2 are each H, a halogen, an aliphatic group, an aromatic group, a heterocyclic group, a cyano group, a carboxyl group, a carbamoyl group, an alkoxycarbonyl group or the like. R1 and R5, or R5 and R6 may be bonded with each other to form a five-membered or six-membered ring.
    Type: Application
    Filed: August 18, 2004
    Publication date: February 24, 2005
    Inventors: Yasuhiro Kato, Yuki Mizukawa, Toshiki Fujiwara, Yasuhiro Shimada, Nobuo Suzuki, Nobuo Seto
  • Patent number: 6770431
    Abstract: A silver halide color photosensitive material comprising a 1H-pyrazolo[3,2-c]-1,2,4-triazole type coupler having, in its molecule, at least one substituent represented by the following general formula (I): wherein R1 represents a substituent; m represents an integer of 0 to 4; and R2 represents an alkyl group, alkenyl group or aryl group.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: August 3, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Masaaki Tsukase, Toshio Kawagishi, Hiroshi Fukuzawa
  • Patent number: 6756424
    Abstract: An ink-jet ink comprising a coloring composition including an oil-soluble dye represented by general formula (I) below. wherein A represents a group represented by general formula II, R3-R6 each independently represents a hydrogen atom or a substituent, M represents —OY or —N(R7)(R8), Y represents a hydrogen atom or a cation necessary for neutralizing charge of an oxygen ion, R7 and R8 each independently represents one of an alkyl group, aryl group, heterocyclic group, acyl group, alkylsulfonyl group, and arylsulfonyl group, and general formula (II) is as follows: wherein R1 represents a hydrogen atom or a substituent, R2 represents a substituent, Z1 represents a group of non-metal atoms necessary for forming a 6-membered nitrogen-containing heterocycle, and * represents a bonding position.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: June 29, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Keizo Kimura
  • Publication number: 20040101792
    Abstract: A silver halide color photosensitive material comprising a 1H-pyrazolo[3,2-c]-1,2,4-triazole type coupler having, in its molecule, at least one substituent represented by the following general formula (I): 1
    Type: Application
    Filed: December 27, 2002
    Publication date: May 27, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yuki Mizukawa, Masaaki Tsukase, Toshio Kawagishi, Hiroshi Fukuzawa
  • Patent number: 6423484
    Abstract: There is disclosed a silver halide color photographic light-sensitive material which excels in a color reproduction and an image fastness and which has an excellent color developability. The above silver halide color photographic light-sensitive material comprises a support and provided thereon a yellow color-developing light-sensitive silver halide emulsion layer, a magenta color-developing light-sensitive silver halide emulsion layer and a cyan color-developing light-sensitive silver halide emulsion layer each having a different color-sensitivity, wherein the above magenta color-developing light-sensitive silver halide emulsion layer contains at least one of the non-diffusible dye-forming couplers represented by the following Formula (M), a high boiling organic solvent having a dielectric constant of 6.0 or less and a refraction index of 1.
    Type: Grant
    Filed: December 15, 2000
    Date of Patent: July 23, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Yoshioka, Takehiko Sato, Osamu Takahashi, Toshio Kawagishi, Kozo Sato, Yuki Mizukawa
  • Patent number: 6368780
    Abstract: A silver halide photographic material excellent in color generation, color reproduction and image fastness, which comprises at least one coupler represented by the following formula: wherein R1 represents an alkyl group which may be optionally substituted, with the proviso that an alkyl group substituted by a halogen atom alone and an alkyl group substituted by a halogen atom and an aryl group are excluded from R1; R2 and R3, which may be the same or different, each represents a hydrogen atom or a substituent; and X1 represents a group which can leave by coupling with an oxidation product of a color developing agent; and an image formation method using the same.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: April 9, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Takeuchi, Taiji Katsumata, Satoshi Sano, Yuki Mizukawa
  • Publication number: 20020017217
    Abstract: An ink-jet ink comprising a coloring composition including an oil-soluble dye represented by general formula (I) below.
    Type: Application
    Filed: March 8, 2001
    Publication date: February 14, 2002
    Inventors: Yuki Mizukawa, Keizo Kimura
  • Patent number: 6340561
    Abstract: Disclosed is a heat developable color photosensitive material, said material comprising a support having disposed thereon a photosensitive layer including at least two layers, any one of the layers containing a photosensitive silver halide, a binder, and an incorporated color developing agent, one layer containing a substantially colorless coupler which forms a diffusive dye by coupling with the oxidized form of the incorporated developing agent, another layer containing a compound represented by the general formula (1). In the color photosensitive material for heat development, the hue of the diffusive dye, which is formed by the coupling reaction between the substantially colorless compound and the oxidized form of the incorporated color developing agent, and the hue of the diffusive dye residue, which is represented by Dye in the general formula (1), differ from each other.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: January 22, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Yuki Mizukawa
  • Patent number: 6235457
    Abstract: An arylidene compound is represented by the formula (I). Each of L1 and L2 independently is a divalent aliphatic group, a divalent aromatic group or a divalent heterocyclic group. L3 is trimethine, pentamethine or heptamethine. Y is ═O, ═S or ═N—R10. R1 is hydrogen, a halogen atom, cyano, nitro, an aliphatic group, an aromatic group, a heterocyclic group, —O—R11, —S—R12, —CO—O—R13, —O—CO—R14, —NR15R16, —CO—NR17R18, —SO2—R19 or —SO2—NR20R21. Each of R2, R3, R6 and R7 independently is hydrogen, a halogen atom, cyano, an aliphatic group, an aromatic group, —O—R22, —CO—R23, —CO—O—R24, —NR25R26, —NHCO—R27, —NH—CO—O—R28, —SO2—R29 or —NH—SO2—R30.
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: May 22, 2001
    Assignee: Fuji Photo Film Co., Ltd
    Inventors: Keizo Kimura, Masashi Ogiyama, Yoshiharu Yabuki, Toshio Kawagishi, Takeshi Nakamine, Yuki Mizukawa
  • Patent number: 5994047
    Abstract: A silver halide color photosensitive material comprising at least one polymer coupler, the polymer coupler being a copolymer prepared from at least one yellow coupler monomer and at least one magenta coupler monomer, and additionally, if desired, at least one non-color-forming monomer having at least one ethylene group, which has no capability to couple with an oxidized product of an aromatic primary amine developing agent. Further, a color filter produced from the above described color photosensitive material and a production method thereof are disclosed.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: November 30, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Tatsuya Igarashi, Hiroyuki Hirai
  • Patent number: 5972586
    Abstract: A silver halide color photosensitive material suitable for production of a color filter which comprises a polymer coupler comprising at least a yellow coupler monomer and a cyan coupler monomer. The photosensitive material provides a green image having excellent spectral transmission characteristics and fastness to heat and light.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: October 26, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Tatsuya Igarashi, Hiroyuki Hirai
  • Patent number: 5800953
    Abstract: A silver halide color photosensitive material suitable for production of a color filter which comprises a polymer coupler comprising at least a yellow coupler monomer and a cyan coupler monomer. The photosensitive material provides a green image having excellent spectral transmission characteristics and fastness to heat and light.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: September 1, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Tatsuya Igarashi, Hiroyuki Hirai
  • Patent number: 5532377
    Abstract: A 1H-pyrazolo[1,5-b][1,2,4]triazole magenta coupler having a t-alkyl group at the position-6 and an amido group-substituted phenyl group at the position-2 is disclosed. There is also disclosed a silver halide color photographic material containing the same.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 2, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Masuji Motoki, Tadahisa Sato, Osamu Takahashi
  • Patent number: 5508154
    Abstract: An image-forming process of a silver halide photographic material having at least one light-sensitive silver halide emulsion layer on a support, which comprises imagewise exposing the photographic material and developing the exposed photographic material using a developer under the presence of a compound represented by formula (I); ##STR1## wherein Q represents a non-metallic atomic group having at least one of a nitrogen atom, an oxygen atom, and a sulfur atom. and which is necessary for forming a 5-membered heterocyclic ring together with the two carbon atoms of the 1,2,3-triazole ring; Y represents a substituent; and n represents 0 or an integer of from 1 to 3, when n is 2 or 3, Y's may be the same or different; and a silver halide photographic material and a developer each containing the compound represented by formula (I).
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: April 16, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Hidetoshi Kobayashi
  • Patent number: 5500334
    Abstract: Disclosed is a silver halide color photographic material having at least one silver halide emulsion layer on a support, in which at least one layer constituting the material contains a coupler of formula (I): ##STR1## where R.sub.1 represents an electron-attracting substituent having a Taft's substituent constant .sigma.* value of +0.52 or more; R.sub.2 represents a branched alkyl group; and X represents a pyrazolyl group. The material has excellent heat stability, sensitivity, gradation and color image fastness, and it also has excellent color forming capacity and absorption characteristics.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: March 19, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Hideaki Naruse, Toshiyuki Watanabe, Tadahisa Sato
  • Patent number: 5487968
    Abstract: A silver halide photographic material having at least one silver halide emulsion layer and at least one compound represented by a general formula (I) on a support:A-(TIME).sub.m -(RED).sub.n -Q (I)wherein A represents a group capable of releasing (TIME).sub.m -(RED).sub.n -Q by a reaction with an oxidation product of an aromatic primary amine developing agent;TIME represents a timing group capable of releasing (RED).sub.
    Type: Grant
    Filed: October 12, 1994
    Date of Patent: January 30, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Hidetoshi Kobayashi
  • Patent number: 5451501
    Abstract: A 1H-pyrazolo[1,5-b][1,2,4]triazole magenta coupler having a t-alkyl group at the position-6 and an amido group-substituted phenyl group at the position-2 is disclosed. There is also disclosed a silver halide color photographic material containing the same.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: September 19, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Masuji Motoki, Tadahisa Sato, Osamu Takahashi
  • Patent number: 5409808
    Abstract: Disclosed is a silver halide color photographic material having at least one light-sensitive silver halide emulsion layer on a support and containing at least one coupler of formula (I): ##STR1## where R.sub.1 represents an alkyl group; R.sub.2 and R.sub.3 each represent a hydrogen atom, an alkyl group or an aryl group, provided that both R.sub.2 and R.sub.3 are not hydrogen atoms at the same time; R.sub.4 and R.sub.5 each represent an alkyl group; X represents a hydrogen atom or a substituent capable of splitting off by coupling with an oxidation product of a developing agent; Y represents a substituent; n represents 0 or 1; and m represents an integer of from 0 to 3. The material has excellent sensitivity and gradation and has improved storage stability, especially latent image stability.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: April 25, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Hideaki Naruse, Toshiyuki Watanabe, Tadahisa Sato