Patents by Inventor Tomoyo Ogura

Tomoyo Ogura 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: 8128747
    Abstract: A water-based ink for ink-jet recording includes a coloring agent, water, and a water-soluble organic solvent. The coloring agent includes the following dye (1) and dye (2). The water-based ink is good in clearness, color development, and preservation stability as well as good in toughness of a recording material recorded using the water-based ink. Dye (1): dye represented by the following general formula (1) Dye (2): at least one dye selected from the group consisting of C. I. Direct Yellow 86, C. I. Direct Yellow 132, C. I. Direct Yellow 142, and C. I. Direct Yellow 173.
    Type: Grant
    Filed: December 23, 2008
    Date of Patent: March 6, 2012
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tomoyo Ogura, Michiko Aoyama, Narumi Koga
  • Publication number: 20090165672
    Abstract: A water-based ink for ink-jet recording includes a coloring agent, water, and a water-soluble organic solvent. The coloring agent includes the following dye (1) and dye (2). The water-based ink is good in clearness, color development, and preservation stability as well as good in toughness of a recording material recorded using the water-based ink. Dye (1): dye represented by the following general formula (1) Dye (2): at least one dye selected from the group consisting of C. I. Direct Yellow 86, C. I. Direct Yellow 132, C. I. Direct Yellow 142, and C. I.
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tomoyo OGURA, Michiko AOYAMA, Narumi KOGA