Patents by Inventor Yumiko MINAMI

Yumiko MINAMI 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).

  • Catalyst for olefin polymerization and production method for polar group-containing olefin-based polymers
    Patent number: 11352453
    Abstract: A catalyst for olefin polymerization that contains a metal complex represented by general formula (C1) and a method for producing polyethylene, a copolymer of ethylene and an olefin having a polar group represented by general formula (1), or a copolymer of ethylene, an olefin having a polar group represented by general formula (1) and another monomer, using the aforementioned metal complex as a polymerization catalyst, wherein the symbols in formula (C1) and formula (1) are as defined in the specification.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: June 7, 2022
    Assignees: THE UNIVERSITY OF TOKYO, SHOWA DENKO K.K., JAPAN POLYETHYLENE CORPORATION
    Inventors: Kyoko Nozaki, Shingo Ito, Junichi Kuroda, Yoshikuni Okumura, Shinya Hayashi, Yumiko Minami, Minoru Kobayashi, Yuichiro Yasukawa
  • CATALYST FOR OLEFIN POLYMERIZATION AND PRODUCTION METHOD FOR POLAR GROUP-CONTAINING OLEFIN-BASED POLYMERS
    Publication number: 20200347159
    Abstract: A catalyst for olefin polymerization that contains a metal complex represented by general formula (C1) and a method for producing polyethylene, a copolymer of ethylene and an olefin having a polar group represented by general formula (1), or a copolymer of ethylene, an olefin having a polar group represented by general formula (1) and another monomer, using the aforementioned metal complex as a polymerization catalyst, wherein the symbols in formula (C1) and formula (1) are as defined in the specification.
    Type: Application
    Filed: November 7, 2018
    Publication date: November 5, 2020
    Applicants: THE UNIVERSITY OF TOKYO, SHOWA DENKO K. K., JAPAN POLYETHYLENE CORPORATION
    Inventors: Kyoko NOZAKI, Shingo ITO, Junichi KURODA, Yoshikuni OKUMURA, Shinya HAYASHI, Yumiko MINAMI, Minoru KOBAYASHI, Yuichiro YASUKAWA