Patents by Inventor Masahiro Igaki

Masahiro Igaki 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).

  • Method for manufacturing ethylene-vinyl acetate copolymer and apparatus for manufacturing the same
    Patent number: 6777505
    Abstract: The present invention provides a method for manufacturing an ethylene-vinyl acetate that includes: (a) introducing an ethylene containing gas and a vinyl acetate containing liquid into a heat exchanger, said gas including ethylene vaporized from a polymerization solution; (b) bringing said gas into contact with said liquid in the heat exchanger so as to dissolve at least a portion of the ethylene in said gas into said liquid; and (c) introducing said liquid from the heat exchanger into the polymerization solution. In this method, the ethylene containing gas and the vinyl acetate containing liquid flow in parallel with each other in the heat exchanger.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: August 17, 2004
    Assignee: Kuraray Co., Ltd.
    Inventors: Masato Takai, Etsuo Nakazato, Kouichi Takahashi, Yoichi Matsumoto, Masahiro Igaki, Takaharu Kawahara, Nobutoshi Wada
  • Method for manufacturing ethylene-vinyl acetate copolymer and apparatus for manufacturing the same
    Publication number: 20020176812
    Abstract: The present invention provides a method for manufacturing an ethylene-vinyl acetate that includes:
    Type: Application
    Filed: March 15, 2002
    Publication date: November 28, 2002
    Applicant: KURARAY CO., LTD.
    Inventors: Masato Takai, Etsuo Nakazato, Kouichi Takahashi, Yoichi Matsumoto, Masahiro Igaki, Takaharu Kawahara, Nobutoshi Wada