Patents by Inventor Tomoya TANATSUGU

Tomoya TANATSUGU 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).

  • Tackifier resin and pressure-sensitive adhesive composition
    Patent number: 10781344
    Abstract: A tackifier resin is a reaction product of rosins (A), a ring structure-containing compound (B) capable of reacting with the rosins, and an alcohol (C).
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: September 22, 2020
    Assignee: HARIMA CHEMICALS, INCORPORATED
    Inventors: Masakazu Kono, Hiroki Abe, Tomoya Tanatsugu, Keiji Sasakura
  • Resin for active energy ray curable ink, composition for active energy ray curable ink, active energy ray curable ink, and cured film
    Patent number: 10669439
    Abstract: A resin for an active energy ray curable ink contains a rosin-modified unsaturated polyester resin (A). The rosin-modified unsaturated polyester resin (A) is a reaction product of a material component containing rosins (a), ?,?-unsaturated carboxylic acids (b), and polyols (c); the mole ratio of an unsaturated bond based on the ?,?-unsaturated carboxylic acids (b) with respect to the total amount of the material component is 0.50 mol/kg or more and 2.00 mol/kg or less; the rosins (a) contain a stabilization-treated rosin at a ratio of 90 mass % or more with respect to the total amount of the rosins (a); the ?,?-unsaturated carboxylic acids (b) contain ?,?-unsaturated dicarboxylic acids; and the polyols (c) contain a trihydric or more alcohol.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: June 2, 2020
    Assignee: HARIMA CHEMICALS, INCORPORATED
    Inventors: Keijiro Okawachi, Keiji Sasakura, Tomoya Tanatsugu, Hiroyuki Hisada, Akihiro Morita
  • Resin for Active Energy Ray Curable Ink, Composition for Active Energy Ray Curable Ink, Active Energy Ray Curable Ink, and Cured Film
    Publication number: 20190264044
    Abstract: A resin for an active energy ray curable ink contains a rosin-modified unsaturated polyester resin (A). The rosin-modified unsaturated polyester resin (A) is a reaction product of a material component containing rosins (a), ?,?-unsaturated carboxylic acids (b), and polyols (c); the mole ratio of an unsaturated bond based on the ?,?-unsaturated carboxylic acids (b) with respect to the total amount of the material component is 0.50 mol/kg or more and 2.00 mol/kg or less; the rosins (a) contain a stabilization-treated rosin at a ratio of 90 mass % or more with respect to the total amount of the rosins (a); the ?,?-unsaturated carboxylic acids (b) contain ?,?-unsaturated dicarboxylic acids; and the polyols (c) contain a trihydric or more alcohol.
    Type: Application
    Filed: July 13, 2017
    Publication date: August 29, 2019
    Applicant: Harima Chemicals, Incorporated
    Inventors: Keijiro Okawachi, Keiji Sasakura, Tomoya Tanatsugu, Hiroyuki Hisada, Akihiro Morita
  • TACKIFIER RESIN AND PRESSURE-SENSITIVE ADHESIVE COMPOSITION
    Publication number: 20180371297
    Abstract: A tackifier resin is a reaction product of rosins (A), a ring structure-containing compound (B) capable of reacting with the rosins, and an alcohol (C).
    Type: Application
    Filed: October 17, 2016
    Publication date: December 27, 2018
    Applicant: Harima Chemicals, Incorporated
    Inventors: Masakazu Kono, Hiroki Abe, Tomoya Tanatsugu, Keiji Sasakura
  • TACKIFIER
    Publication number: 20180298243
    Abstract: The purpose of the present invention is to provide a tackifier which is superior in adhesiveness under high temperature (heat-resistant holding power) and rough surface adhesiveness to conventional tackifiers produced using rosin acids having a tricyclic skeletal structure. This tackifier is a reaction product of a rosin (A) with an alcohol (B), the rosin (A) containing a rosin acid (a) having a bicyclic skeletal structure. Preferably, the bicyclic skeletal structure is a labdane skeletal structure.
    Type: Application
    Filed: October 5, 2016
    Publication date: October 18, 2018
    Applicant: HARIMA CHEMICALS, INC.
    Inventors: Masakazu KONO, Tomoya TANATSUGU