Patents by Inventor Syumpei Nishinaka

Syumpei Nishinaka 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).

  • Publication number: 20160359169
    Abstract: The aqueous paste for an electrochemical cell of the present invention comprises an aqueous dispersion for an electrochemical cell that comprises an olefin copolymer (a); an active material; and a conductive assistant, wherein the olefin copolymer (a) has a weight average molecular weight of not less than 50,000 and is at least one kind selected from a random propylene copolymer (a-1) containing 50% by weight to less than 85% by weight of a structural unit derived from propylene; an acid-modified random propylene copolymer (a-2) obtained by modifying the copolymer (a-1) with an acid; and an ethylene-(meth)acrylic acid copolymer (a-3) containing 5% by weight to less than 25% by weight of a structural unit derived from (meth)acrylic acid.
    Type: Application
    Filed: August 19, 2016
    Publication date: December 8, 2016
    Applicants: MITSUI CHEMICALS, INC., SHARP KABUSHIKI KAISHA
    Inventors: Gen MIYATA, Akinori ETOH, Takehito MITATE, Naoto NISHIMURA, Takahiro MATSUYAMA, Syumpei NISHINAKA
  • Publication number: 20120231337
    Abstract: The aqueous paste for an electrochemical cell of the present invention comprises an aqueous dispersion for an electrochemical cell that comprises an olefin copolymer (a); an active material; and a conductive assistant, wherein the olefin copolymer (a) has a weight average molecular weight of not less than 50,000 and is at least one kind selected from a random propylene copolymer (a-1) containing 50% by weight to less than 85% by weight of a structural unit derived from propylene; an acid-modified random propylene copolymer (a-2) obtained by modifying the copolymer (a-1) with an acid; and an ethylene-(meth) acrylic acid copolymer (a-3) containing 5% by weight to less than 25% by weight of a structural unit derived from (meth) acrylic acid.
    Type: Application
    Filed: November 18, 2010
    Publication date: September 13, 2012
    Inventors: Gen Miyata, Akinori Etoh, Takehito Mitate, Naoto Nishimura, Takahiro Matsuyama, Syumpei Nishinaka