Patents by Inventor Yasuyuki Takazawa

Yasuyuki Takazawa 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).

  • Patent number: 10804518
    Abstract: Provided is a material capable of further extending the life of a cell including a zinc species as a negative electrode active material. The present invention relates to an anion conducting membrane formed using an anion conducting membrane-forming material, the anion conducting membrane-forming material including a conjugated diene based polymer and/or a (meth)acrylic based polymer, and a compound containing at least one element selected from Groups I to XVII of the periodic table, the anion conducting membrane having a cross-section in which a ratio of a combined area of particles of the compound containing at least one element selected from Groups I to XVII of the periodic table to a combined area of the components of the anion conducting membrane-forming material other than the compound (particles of the compound/components of the anion conducting membrane-forming material other than the compound) is 70/30 to 30/70.
    Type: Grant
    Filed: May 30, 2016
    Date of Patent: October 13, 2020
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Hiroki Tokushima, Hironobu Akutagawa, Hiroko Harada, Yasuyuki Takazawa, Satoshi Ogawa, Keisuke Kikuchi
  • Patent number: 10573927
    Abstract: The present invention provides an electrode which is a zinc anode or an electrode of any other type, and ensures good durability and sufficiently high ion conductivity, and sufficiently improves the cell performance when used in a cell, and also provides its precursor. The present invention relates to an electrode which includes a current collector and an active material layer containing an active material, and further includes a specific anion conducting material or a specific solid electrolyte.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: February 25, 2020
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Satoshi Ogawa, Koji Yonehara, Hiroko Harada, Yasuyuki Takazawa, Hironobu Ono
  • Patent number: 10297861
    Abstract: The present invention aims to provide an anion conducting material having excellent anion conductivity and durability, which can be suitably used as a separator, an electrolyte, or an electrode protecting agent of an alkaline cell, for example. The present invention also aims to provide a cell including a cell component containing the anion conducting material. The present invention provides an anion conducting material containing a polymer and a compound containing at least one element selected from Groups 1 to 17 of the periodic table.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: May 21, 2019
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Koji Yonehara, Hironobu Ono, Satoshi Ogawa, Yasuyuki Takazawa, Hiroko Harada
  • Publication number: 20180175354
    Abstract: Provided is a material capable of further extending the life of a cell including a zinc species as a negative electrode active material. The present invention relates to an anion conducting membrane formed using an anion conducting membrane-forming material, the anion conducting membrane-forming material including a conjugated diene based polymer and/or a (meth)acrylic based polymer, and a compound containing at least one element selected from Groups I to XVII of the periodic table, the anion conducting membrane having a cross-section in which a ratio of a combined area of particles of the compound containing at least one element selected from Groups I to XVII of the periodic table to a combined area of the components of the anion conducting membrane-forming material other than the compound (particles of the compound/components of the anion conducting membrane-forming material other than the compound) is 70/30 to 30/70.
    Type: Application
    Filed: May 30, 2016
    Publication date: June 21, 2018
    Inventors: Hiroki TOKUSHIMA, Hironobu AKUTAGAWA, Hiroko HARADA, Yasuyuki TAKAZAWA, Satoshi OGAWA, Keisuke KIKUCHI
  • Publication number: 20150364789
    Abstract: The present invention provides an electrode which is a zinc anode or an electrode of any other type, and ensures good durability and sufficiently high ion conductivity, and sufficiently improves the cell performance when used in a cell, and also provides its precursor. The present invention relates to an electrode which includes a current collector and an active material layer containing an active material, and further includes a specific anion conducting material or a specific solid electrolyte.
    Type: Application
    Filed: January 30, 2014
    Publication date: December 17, 2015
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Satoshi OGAWA, Koji YONEHARA, Hiroko HARADA, Yasuyuki TAKAZAWA, Hironobu ONO
  • Publication number: 20150364790
    Abstract: The present invention aims to provide an anion conducting material having excellent anion conductivity and durability, which can be suitably used as a separator, an electrolyte, or an electrode protecting agent of an alkaline cell, for example. The present invention also aims to provide a cell including a cell component containing the anion conducting material. The present invention provides an anion conducting material containing a polymer and a compound containing at least one element selected from Groups 1 to 17 of the periodic table.
    Type: Application
    Filed: January 30, 2014
    Publication date: December 17, 2015
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Koji YONEHARA, Hironobu ONO, Satoshi OGAWA, Yasuyuki TAKAZAWA, Hiroko HARADA
  • Publication number: 20140205909
    Abstract: The purpose of the present invention is to provide a zinc negative electrode mixture for forming negative electrodes of safe and economic batteries exhibiting excellent battery performance; and a gel electrolyte or a negative electrode mixture which can be suitably used for forming a storage battery exhibiting excellent battery performance such as a high cycle characteristic, rate characteristic, and coulombic efficiency while suppressing change in form, such as shape change and dendrite, and passivation of the electrode active material. Another purpose of the present invention is to provide a battery including the zinc negative electrode mixture or the gel electrolyte. (1) The zinc negative electrode mixture contains a zinc-containing compound and a conductive auxiliary agent. The zinc-containing compound and/or the conductive auxiliary agent contain(s) particles having an average particle size of 1000 ?m or smaller and/or particles having an aspect ratio (vertical/lateral) of 1.1 or higher.
    Type: Application
    Filed: August 22, 2012
    Publication date: July 24, 2014
    Applicant: NIPPON SHOKUBAI CO., LTD.
    Inventors: Koji Yonehara, Hironobu Ono, Hiroko Harada, Yasuyuki Takazawa