Patents by Inventor Akifumi MITAKE

Akifumi MITAKE 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).

  • Copolymer, and surface treatment agent
    Patent number: 11034785
    Abstract: Provided is a surface treatment agent which does not use fluorine-containing monomers, particularly fluoroalkyl group-containing monomers. Additionally, provided is a copolymer which includes a first polymer formed from first monomers, and a second polymer formed from second monomers. The copolymer does not include fluorine. The second polymer is polymerized in the presence of the first polymer. The first monomers include a long-chain acrylate ester monomer (a) represented by the formula CH2=CA11-C(?O)—O-A12 (in the formula, A11 represents hydrogen, a monovalent organic group, or a halogen, and A12 represents a C18-30 straight-chain or branched hydrocarbon group). The first monomers and the second monomers both include a halogenated olefin monomer (b).
    Type: Grant
    Filed: March 15, 2017
    Date of Patent: June 15, 2021
    Assignees: DAIKIN INDUSTRIES, LTD., NISSIN CHEMICAL INDUSTRY CO., LTD
    Inventors: Rumi Kawabe, Masaki Fukumori, Ryosuke Hara, Masahiro Miyahara, Shinichi Minami, Ikuo Yamamoto, Yasuhiro Mitta, Akifumi Mitake
  • COPOLYMER, AND SURFACE TREATMENT AGENT
    Publication number: 20200299441
    Abstract: Provided is a surface treatment agent which does not use fluorine-containing monomers, particularly fluoroalkyl group-containing monomers. Additionally, provided is a copolymer which includes a first polymer formed from first monomers, and a second polymer formed from second monomers. The copolymer does not include fluorine. The second polymer is polymerized in the presence of the first polymer. The first monomers include a long-chain acrylate ester monomer (a) represented by the formula CH2=CA11-C(?O)—O-A12 (in the formula, A11 represents hydrogen, a monovalent organic group, or a halogen, and A12 represents a C18-30 straight-chain or branched hydrocarbon group). The first monomers and the second monomers both include a halogenated olefin monomer (b).
    Type: Application
    Filed: March 15, 2017
    Publication date: September 24, 2020
    Applicants: DAIKIN INDUSTRIES, LTD., NISSIN CHEMICAL INDUSTRY CO., LTD
    Inventors: Rumi KAWABE, Masaki FUKUMORI, Ryosuke HARA, Masahiro MIYAHARA, Shinichi MINAMI, Ikuo YAMAMOTO, Yasuhiro MITTA, Akifumi MITAKE