Patents by Inventor Kazue Sano

Kazue Sano 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: 7256222
    Abstract: To provide a radiation-curable ink composition that can form a high-quality image on not only liquid absorbing materials to be recorded but also non-liquid absorbing materials to be recorded, is superior in curing properties in air, and is superior in storage stability, color tone, light fastness and water resistance of ink, and also to provide an image recording method. The radiation-curable ink composition comprises a monomer having a polymerizable group selected from the group consisting of an acryloyl group, a methacryloyl group, an allyl group, and a vinyl group, an oil-soluble dye, and from 0.005 to 1% by weight of a storage stabilizer, wherein the oil-soluble dye is dissolved in the ink.
    Type: Grant
    Filed: January 29, 2003
    Date of Patent: August 14, 2007
    Assignee: Fujifilm Corporation
    Inventors: Takahiro Ishizuka, Kazue Sano, Junichi Yamanouchi, Keiichi Tateishi
  • Publication number: 20040010052
    Abstract: To provide a radiation-curable ink composition that can form a high-quality image on not only liquid absorbing materials to be recorded but also non-liquid absorbing materials to be recorded, is superior in curing properties in air, and is superior in storage stability, color tone, light fastness and water resistance of ink, and also to provide an image recording method. The radiation-curable ink composition comprises a monomer having a polymerizable group selected from the group consisting of an acryloyl group, a methacryloyl group, an allyl group, and a vinyl group, an oil-soluble dye, and from 0.005 to 1% by weight of a storage stabilizer, wherein the oil-soluble dye is dissolved in the ink.
    Type: Application
    Filed: January 29, 2003
    Publication date: January 15, 2004
    Inventors: Takahiro Ishizuka, Kazue Sano, Junichi Yamanouchi, Keiichi Tateishi
  • Publication number: 20030199609
    Abstract: An ink composition comprising an aqueous medium having dispersed therein a coloring fine particle dispersion, wherein the coloring fine particle dispersion contains a hydrophobic ethylenically unsaturated monomer and at least one oil-soluble dye, and the ink composition contains apolymerization initiator.
    Type: Application
    Filed: January 29, 2003
    Publication date: October 23, 2003
    Inventors: Junichi Yamanouchi, Takahiro Ishizuka, Kazue Sano
  • Publication number: 20030081092
    Abstract: An aqueous dispersion of colored particles, the dispersion comprising: a water-insoluble colorant; an aqueous medium; a polymer obtained by a vinyl monomer; and a dispersant, wherein the dispersion has a high dispersion stability when the water-insoluble colorant is dispersed in the presence of the dispersant, and a latex having a poor dispersion stability is formed when the vinyl monomer is polymerized in the presence of the dispersant alone.
    Type: Application
    Filed: May 16, 2002
    Publication date: May 1, 2003
    Inventors: Takahiro Ishizuka, Kazue Sano
  • Patent number: 5821041
    Abstract: The invention provides a liquid developer for photographic silver halide photosensitive material comprising a silver halide emulsion layer containing at least 50% based on the projected area of tabular silver halide grains with an aspect ratio of at least 3.0 and having a swelling factor of 130-250%. In the liquid developer containing ascorbic acid or a derivative thereof as a developing agent or preservative, a compound of formula (I): ##STR1## wherein each of R.sub.1 and R.sub.2 is a C1-C3 hydroxyalkyl group or C1-C3 alkyl group and R.sub.3 is a C1-C3 hydroxyalkyl group is added for preventing the developer from coloring with the lapse of time.
    Type: Grant
    Filed: December 31, 1996
    Date of Patent: October 13, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Eiichi Okutsu, Shigeo Hirano, Kazue Sano