Patents by Inventor Yoshihiro HISANAGA

Yoshihiro HISANAGA 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).

  • Active energy ray curable ink composition and method for manufacturing printed matter using same
    Patent number: 11932767
    Abstract: To provide an active energy ray-curable ink composition that contains high rates of raw materials derived from biomass and can maintain basic characteristics, such as compatibility. Provided is an active energy ray-curable ink composition containing a pigment, a compound having ethylenically unsaturated bonds, and a rosin-modified alkyd resin, wherein the rosin-modified alkyd resin is a condensed polymer of an acid ingredient containing a resin acid, a fatty acid, and a polybasic acid with a polyhydric alcohol, and has a solubility parameter (sp) value of 9.0 to 11.0 (cal/cm3)1/2 as measured by turbidimetric titration and an acid value of 1 to 50 mg KOH/g.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: March 19, 2024
    Assignee: SAKATA INX CORPORATION
    Inventors: Keishiro Hishinuma, Naoki Omi, Yoshihiro Hisanaga, Aika Nishimoto
  • ACTIVE ENERGY RAY CURABLE INK COMPOSITION AND METHOD FOR MANUFACTURING PRINTED MATTER USING SAME
    Publication number: 20220098421
    Abstract: To provide an active energy ray-curable ink composition that contains high rates of raw materials derived from biomass and can maintain basic characteristics, such as compatibility. Provided is an active energy ray-curable ink composition containing a pigment, a compound having ethylenically unsaturated bonds, and a rosin-modified alkyd resin, wherein the rosin-modified alkyd resin is a condensed polymer of an acid ingredient containing a resin acid, a fatty acid, and a polybasic acid with a polyhydric alcohol, and has a solubility parameter (sp) value of 9.0 to 11.0 (cal/cm3)1/2 as measured by turbidimetric titration and an acid value of 1 to 50 mg KOH/g.
    Type: Application
    Filed: December 11, 2019
    Publication date: March 31, 2022
    Inventors: Keishiro HISHINUMA, Naoki OMI, Yoshihiro HISANAGA, Aika NISHIMOTO