Patents by Inventor Kazuya ZENYOJI

Kazuya ZENYOJI 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).

  • Polythiol composition and method for producing same
    Patent number: 10207987
    Abstract: The present invention provides a polythiol composition containing, as the main component, a polythiol compound (a) having two or more mercapto groups, and containing 0.5% by mass or less of a nitrogen-containing compound (b) in which at least one mercapto group in the polythiol compound (a) is substituted with a group represented by formula (1).
    Type: Grant
    Filed: July 15, 2015
    Date of Patent: February 19, 2019
    Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoshihiko Nishimori, Kazuya Zenyoji, Rie Sakata, Teruo Kamura
  • POLYTHIOL COMPOSITION AND METHOD FOR PRODUCING SAME
    Publication number: 20170247322
    Abstract: The present invention provides a polythiol composition containing, as the main component, a polythiol compound (a) having two or more mercapto groups, and containing 0.5% by mass or less of a nitrogen-containing compound (b) in which at least one mercapto group in the polythiol compound (a) is substituted with a group represented by formula (1).
    Type: Application
    Filed: July 15, 2015
    Publication date: August 31, 2017
    Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.
    Inventors: Yoshihiko NISHIMORI, Kazuya ZENYOJI, Rie SAKATA, Teruo KAMURA