Patents by Inventor Yusuke Tazawa

Yusuke Tazawa 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).

  • POLYCARBONATE RESIN, POLYCARBONATE RESIN COMPOSITION, OPTICAL MOLDED ARTICLE COMPRISING SAME, AND CYCLIC CARBONATE
    Publication number: 20230192949
    Abstract: A polycarbonate resin comprising a structural unit represented by the following formula (1), wherein weight-average molecular weight Mw measured by size-exclusion chromatography using polymethyl methacrylate as a standard sample is 50,000 or larger and 500,000 or smaller:
    Type: Application
    Filed: January 15, 2021
    Publication date: June 22, 2023
    Applicant: Asahi Kasei Kabushiki Kaisha
    Inventors: Tatsuro Toda, Hisanari Yoneda, Takuto Nakata, Shota Ide, Hiroshi Fukuoka, Katsuhiro Iwase, Masaaki Aramaki, Osamu Haba, Yusuke Tazawa