Patents by Inventor Taichi Uemura

Taichi Uemura 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: 20220195268
    Abstract: An adhesive kit 1 separately includes a main agent layer 2 containing a polyamine component, and a curing agent layer 3 containing a polyisocyanate component. When the main agent layer 2 is reacted with the curing agent layer 3, the reactive parameter Pr exceeds 40% and the diffusion parameter Pd exceeds 15%.
    Type: Application
    Filed: April 3, 2020
    Publication date: June 23, 2022
    Inventors: Ryo TAKANO, Taichi UEMURA, Akihiro IMAI
  • Patent number: 9564638
    Abstract: A battery electrode or separator surface protective agent composition having fluidity and being capable of being solidified by hot melt, and comprising at least two types of organic particles comprising organic materials, wherein the organic particles of types different from each other are substantially incompatible with each other, wherein when the composition is solidified by hot melt, the organic particles of the same type thermally fuse with one another to form a continuous phase.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: February 7, 2017
    Assignee: KYORITSU CHEMICAL & CO., LTD.
    Inventor: Taichi Uemura
  • Patent number: 9512323
    Abstract: A task of the present invention is to solve the problem in that the conductive undercoating agent composition for coating a current collector has so poor electrochemical durability that the conductive undercoating agent composition is peeled off the current collector after a long-term reliability test. A conductive undercoating agent composition for a current collector for a battery or electrical double layer capacitor, which comprises a polymer having a substituent capable of bonding to an active hydrogen group, inorganic particles having an active hydrogen group, and a conductive agent.
    Type: Grant
    Filed: October 21, 2011
    Date of Patent: December 6, 2016
    Assignee: KYORITSU CHEMICAL & CO., LTD.
    Inventor: Taichi Uemura
  • Publication number: 20160172678
    Abstract: The present invention provides a binder that can form a layer that does not reduce high-speed charge/discharge characteristics of a non-aqueous electricity storage element while improving adhesive properties with respect to a substrate such as an electrode or a separator. A binder for a non-aqueous electricity storage element comprising a binder containing a polymer represented by formula (1); a non-aqueous electricity storage element electrode, separator, or current collector in which the binder is used; and a non-aqueous electricity storage element provided with at least one of the non-aqueous electricity storage element electrode, separator, or current collector.
    Type: Application
    Filed: July 30, 2014
    Publication date: June 16, 2016
    Applicant: KYORITSU CHEMICAL & CO., LTD.
    Inventors: Naoto Oyama, Taichi Uemura
  • Publication number: 20160141625
    Abstract: A coating agent composition for battery electrode or separator, comprises a vinyl alcohol copolymer having a structural unit represented by the general formula (1), and an aqueous emulsion of a synthetic resin obtained by polymerizing a copolymerizable monomer having an acrylic monomer as a main component, or an aqueous emulsion of a styrene thermoplastic elastomer.
    Type: Application
    Filed: January 21, 2016
    Publication date: May 19, 2016
    Applicants: KYORITSU CHEMICAL & CO., LTD., THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD.
    Inventors: Taichi Uemura, Satoshi Yamazaki, Mitsuo Shibutani, Kazuo Aiba
  • Patent number: 9315680
    Abstract: A conductive composition for coating a current collector of coating a current collector for a battery or an electrical double layer capacitor, where the adhesion properties between a battery current collector and an active material layer are increased to improve the battery characteristics is presented. A battery using the battery current collector using the composition is also presented. The conductive composition for coating the current collector includes a vinylsilane copolymer, a polycarboxylic acid, and a conductive auxiliary. The formulation of the vinylsilane copolymer is also presented.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: April 19, 2016
    Assignee: KYORITSU CHEMICAL & CO., LTD.
    Inventor: Taichi Uemura
  • Patent number: 9181439
    Abstract: A coating formulation for forming a conductive coating film on a surface of a collector for constructing an electrode plate for an electricity storage device is provided. The coating formulation contains (A) a polymeric acid, (B) a vinyl carboxylate copolymer represented by the following formula (1): wherein R1 is selected from the group consisting of H, Na, organic groups derived from vinyl carboxylate monomers, and cations capable of forming electrolytes for the electricity storage device, R2 to R4 are independently selected from the group consisting of H, Na, C1-C6 alkyl groups, and cations capable of forming electrolytes for the electricity storage device, and a ratio (m/n) of m to n is from 0.0001 to 1, (C) a conductive material, and (D) a polar solvent.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: November 10, 2015
    Assignees: Kyoritsu Chemical & Co., Ltd., Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Taichi Uemura, Nobuyuki Kobayashi, Takanori Sannan, Shinya Tsuchida, Seiji Doi, Yosuke Ichinomiya, Yoshihiko Iijima
  • Publication number: 20140107275
    Abstract: A coating agent composition for battery electrode or separator, comprises a vinyl alcohol copolymer having a structural unit represented by the general formula (1), and an aqueous emulsion of a synthetic resin obtained by polymerizing a copolymerizable monomer having an acrylic monomer as a main component, or an aqueous emulsion of a styrene thermoplastic elastomer.
    Type: Application
    Filed: May 31, 2012
    Publication date: April 17, 2014
    Applicants: THE NIPPON SYNTHETIC CHEMICAL INDUSTRY CO., LTD., KYORITSU CHEMICAL & CO., LTD.
    Inventors: Taichi Uemura, Satoshi Yamazaki, Mitsuo Shibutani, Kazuo Aiba
  • Publication number: 20130260207
    Abstract: A battery electrode or separator surface protective agent composition having fluidity and being capable of being solidified by hot melt, and comprising at least two types of organic particles comprising organic materials, wherein the organic particles of types different from each other are substantially incompatible with each other, wherein when the composition is solidified by hot melt, the organic particles of the same type thermally fuse with one another to form a continuous phase.
    Type: Application
    Filed: December 12, 2011
    Publication date: October 3, 2013
    Applicant: KYORITSU CHEMICAL & CO., LTD.
    Inventor: Taichi Uemura
  • Publication number: 20130224587
    Abstract: A task of the present invention is to solve the problem in that the conductive undercoating agent composition for coating a current collector has so poor electrochemical durability that the conductive undercoating agent composition is peeled off the current collector after a long-term reliability test. A conductive undercoating agent composition for a current collector for a battery or electrical double layer capacitor, which comprises a polymer having a substituent capable of bonding to an active hydrogen group, inorganic particles having an active hydrogen group, and a conductive agent.
    Type: Application
    Filed: October 21, 2011
    Publication date: August 29, 2013
    Applicant: KYORITSU CHEMICAL & CO., LTD.
    Inventor: Taichi Uemura
  • Publication number: 20130164614
    Abstract: A conductive composition for coating a current collector of coating a current collector for a battery or an electrical double layer capacitor, where the adhesion properties between a battery current collector and an active material layer are increased to improve the battery characteristics is presented. A battery using the battery current collector using the composition is also presented. The conductive composition for coating the current collector includes a vinylsilane copolymer, a polycarboxylic acid, and a conductive auxiliary. The formulation of the vinylsilane copolymer is also presented.
    Type: Application
    Filed: August 25, 2011
    Publication date: June 27, 2013
    Applicant: KYORITSU CHEMICAL & CO., LTD.
    Inventor: Taichi Uemura