Patents by Inventor Shuichiro Tanimoto

Shuichiro Tanimoto 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).

  • Aqueous ink, ink cartridge, and ink jet recording method
    Patent number: 9738803
    Abstract: An aqueous ink for ink jet including a resin particle. The resin particle includes a first layer and a second layer in this order from the inside to the outside thereof. The first layer is composed of a first resin, wherein the proportion of a unit derived from an aromatic-group-containing ethylenically unsaturated monomer in the first resin is 10% by mass or less. The second layer has a tetrahydrofuran-insoluble fraction of 10% by mass or more and is composed of a second resin having a unit derived from an aromatic-group-containing ethylenically unsaturated monomer and a unit derived from an ionic-group-containing ethylenically unsaturated monomer, wherein the proportion of the unit derived from the ionic-group-containing ethylenically unsaturated monomer in the second resin is 3% by mass or more to 70% by mass or less.
    Type: Grant
    Filed: May 6, 2016
    Date of Patent: August 22, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takayuki Horiuchi, Satoru Kobayashi, Masanori Yoshida, Shuichiro Tanimoto, Naofumi Shimomura
  • AQUEOUS INK, INK CARTRIDGE, AND INK JET RECORDING METHOD
    Publication number: 20160340530
    Abstract: An aqueous ink for ink jet including a resin particle. The resin particle includes a first layer and a second layer in this order from the inside to the outside thereof. The first layer is composed of a first resin, wherein the proportion of a unit derived from an aromatic-group-containing ethylenically unsaturated monomer in the first resin is 10% by mass or less. The second layer has a tetrahydrofuran-insoluble fraction of 10% by mass or more and is composed of a second resin having a unit derived from an aromatic-group-containing ethylenically unsaturated monomer and a unit derived from an ionic-group-containing ethylenically unsaturated monomer, wherein the proportion of the unit derived from the ionic-group-containing ethylenically unsaturated monomer in the second resin is 3% by mass or more to 70% by mass or less.
    Type: Application
    Filed: May 6, 2016
    Publication date: November 24, 2016
    Inventors: Takayuki Horiuchi, Satoru Kobayashi, Masanori Yoshida, Shuichiro Tanimoto, Naofumi Shimomura
  • Reaction liquid, set of ink and reaction liquid, ink jet recording apparatus and image recording method
    Patent number: 8025384
    Abstract: A reaction liquid destabilizing the dissolved state or dispersed state of a coloring material by being in contact with an ink containing the coloring material on a recording medium, wherein the reaction liquid contains at least calcium ions, glycerin and polyethylene glycols, and wherein the content and ratio of these components are specified.
    Type: Grant
    Filed: December 17, 2008
    Date of Patent: September 27, 2011
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masashi Ogasawara, Souichi Nagai, Tetsu Iwata, Shuichiro Tanimoto
  • REACTION LIQUID, SET OF INK AND REACTION LIQUID, INK JET RECORDING APPARATUS AND IMAGE RECORDING METHOD
    Publication number: 20090185019
    Abstract: A reaction liquid destabilizing the dissolved state or dispersed state of a coloring material by being in contact with an ink containing the coloring material on a recording medium, wherein the reaction liquid contains at least calcium ions, glycerin and polyethylene glycols, and wherein the content and ratio of these components are specified.
    Type: Application
    Filed: December 17, 2008
    Publication date: July 23, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Masashi Ogasawara, Souichi Nagai, Tetsu Iwata, Shuichiro Tanimoto