Patents by Inventor Ryouji Tatara

Ryouji Tatara 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).

  • Publication number: 20200354512
    Abstract: A polymer, includes a first structural unit represented by formula (1), a second structural unit represented by formula (2-1), formula (2-2), or both, and a third structural unit represented by formula (3-1), formula (3-2), or both. The polymer preferably has a weight-average molecular weight in terms of polystyrene of 500 or more and 400,000 or less. A composition includes the polymer and an organic solvent. A molded body includes the polymer.
    Type: Application
    Filed: July 29, 2020
    Publication date: November 12, 2020
    Applicant: JSR CORPORATION
    Inventors: SHOUMA ANABUKI, Ryouyuu HIFUMI, Toshiaki KADOTA, Ryouji TATARA, Nobuyuki MIYAKI
  • Publication number: 20190169362
    Abstract: A polymer, includes a first structural unit represented by formula (1), a second structural unit represented by formula (2-1), formula (2-2), or both, and a third structural unit represented by formula (3-1), formula (3-2), or both. The polymer preferably has a weight-average molecular weight in terms of polystyrene of 500 or more and 400,000 or less. A composition includes the polymer and an organic solvent. A molded body includes the polymer.
    Type: Application
    Filed: January 28, 2019
    Publication date: June 6, 2019
    Applicant: JSR CORPORATION
    Inventors: Shouma ANABUKI, Ryouyuu HIFUMI, Toshiaki KADOTA, Ryouji TATARA, Nobuyuki MIYAKI
  • Publication number: 20190055357
    Abstract: A novel polymer having high glass transition temperature and an excellent balance between heat resistance, high refractive index and mechanical properties, and a composition and molded article containing the polymer are provided. The polymer according to the invention has a first structural unit represented by at least one of formulae (1-1), (1-2) and (1-3) below and a second structural unit having either a secondary amino structure or a tertiary amino structure at two or more terminals.
    Type: Application
    Filed: October 19, 2018
    Publication date: February 21, 2019
    Applicant: JSR Corporation
    Inventors: Ryouyuu HIFUMI, Toshiaki Kadota, Nobuyuki Miyaki, Shintarou Fujitomi, Yasutaka Yoshida, Ryouji Tatara
  • Publication number: 20070232713
    Abstract: Provided is a radiation curing liquid resin composition for optical three-dimensional modeling, which has a small step on the side face and excellent surface smoothness, and allows forming a high accuracy optically modeled article, is composed of the components (A) through (F). The content of (A) component in the total quantity of the composition is 0.1 to 10% by mass, and the content of (F) polyether polyol compound is 1 to 35% by mass. (A) A compound having phenolic hydroxyl group and/or phosphite group, (B) A cationic polymerizable compound, (C) A cationic polymerization initiator, (D) A radical polymerizable compound, (E) A radical polymerization initiator, and (F) A polyether polyol compound.
    Type: Application
    Filed: May 26, 2005
    Publication date: October 4, 2007
    Applicants: JSR Corporation, Japan Fine Coatings Co., Ltd., DSM IP Assets B.V.
    Inventors: Katsuyuki Takase, Ryouji Tatara, Masanobu Sugimoto, Zen Komiya