Patents by Inventor Yuto TSUKUTA

Yuto TSUKUTA 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).

  • CYCLIC OLEFIN-BASED RESIN COMPOSITION, MOLDED PRODUCT AND OPTICAL COMPONENT
    Publication number: 20220033598
    Abstract: The cyclic olefin-based resin composition of the present invention is a cyclic olefin-based resin composition including: a cyclic olefin-based copolymer (A); and inorganic fine particles (B) having a surface modified by a modifier, in which the modifier is one kind or two or more kinds selected from the group consisting of a phosphoric acid ester, an organic phosphonic acid, a phosphonic acid ester, a carboxylic acid, a sulfonic acid, a hydrocarbon compound having an amino group, and a silane coupling agent, and the inorganic fine particles (B) exist in a state of being dispersed in the cyclic olefin-based copolymer (A).
    Type: Application
    Filed: September 5, 2019
    Publication date: February 3, 2022
    Applicant: MITSUI CHEMICALS, INC.
    Inventors: Mikiko NOGUCHI, Haruka SAITO, Masahiko OKAMOTO, Seigou KAWAGUCHI, Yuto TSUKUTA