Patents by Inventor Yoichi Matsuura

Yoichi Matsuura 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).

  • Polypropylene film and laminated material thereof
    Patent number: 7732027
    Abstract: A polypropylene film comprising 70-90 wt. % polymer (a), 2-10 wt. % polymer (b), 2-10 wt. % polymer (c) and 3-20 wt. % polymer (d) and having a haze of 8-30% (wherein the polymer (a) is a block copolymer prepared by producing a polymer part (component a1) by polymerizing in a first step monomers composed mainly of propylene in the absence of an inert solvent and producing an ethylene/propylene copolymer part (component a2) in a second step by polymerization subsequently carried out in a gas phase; the polymer (b) is an ethylene-based polymer having a density of 0.91-0.97 g/cm3 and a melt flow rate of 5-30 g/10 min; the polymer (c) is an ethylene/?-olefin random copolymer having a density of 0.86-0.90 g/cm3 and a melt flow rate of 0.3-5 g/10 min; and the polymer (d) comprises two or more propylene-based polymers different in molecular weight from each other).
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: June 8, 2010
    Assignees: Toray Advanced Film Co., Ltd., Sumitomo Chemical Company Limited
    Inventors: Yoichi Matsuura, Masanori Takeuchi, Kouji Kataoka, Hiroshi Nozawa
  • Polypropylene Film and Laminated Material Thereof
    Publication number: 20080213519
    Abstract: A polypropylene film comprising 70-90 wt. % polymer (a), 2-10 wt. % polymer (b), 2-10 wt. % polymer (c) and 3-20 wt. % polymer (d) and having a haze of 8-30% (wherein the polymer (a) is a block copolymer prepared by producing a polymer part (component a1) by polymerizing in a first step monomers composed mainly of propylene in the absence of an inert solvent and producing an ethylene/propylene copolymer part (component a2) in a second step by polymerization subsequently carried out in a gas phase; the polymer (b) is an ethylene-based polymer having a density of 0.91-0.97 g/cm3 and a melt flow rate of 5-30 g/10 min; the polymer (c) is an ethylene/?-olefin random copolymer having a density of 0.86-0.90 g/cm3 and a melt flow rate of 0.3-5 g/10 min; and the polymer (d) comprises two or more propylene-based polymers different in molecular weight from each other).
    Type: Application
    Filed: November 28, 2005
    Publication date: September 4, 2008
    Applicants: TORAY ADVANCED FILM CO., LTD., SUMITOMO CHEMICAL COMPANY, LIMITED.
    Inventors: Yoichi Matsuura, Masanori Takeuchi, Kouji Kataoka, Hiroshi Nozawa
  • Display screen or portion thereof with graphical user interface
    Patent number: D942991
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: February 8, 2022
    Assignee: HOKURIKU Techno-Solutions Co., Ltd.
    Inventor: Yoichi Matsuura