Patents by Inventor Yuriko Okada

Yuriko Okada 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 producing polymer electrolyte molded article, polymer electrolyte material, polymer electrolyte membrane, and polymer electrolyte fuel cell
    Patent number: 11108071
    Abstract: The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: August 31, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Daisuke Izuhara, Hiroshi Taiko, Yuriko Okada, Shinya Adachi, Masataka Nakamura
  • METHOD FOR PRODUCING POLYMER ELECTROLYTE MOLDED ARTICLE, POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MEMBRANE, AND POLYMER ELECTROLYTE FUEL CELL
    Publication number: 20190148756
    Abstract: The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Inventors: Daisuke IZUHARA, Hiroshi TAIKO, Yuriko OKADA, Shinya ADACHI, Masataka NAKAMURA
  • Method for producing polymer electrolyte molded article, polymer electrolyte material, polymer electrolyte membrane, and polymer electrolyte fuel cell
    Patent number: 10224562
    Abstract: The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: March 5, 2019
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Daisuke Izuhara, Hiroshi Taiko, Yuriko Okada, Shinya Adachi, Masataka Nakamura
  • Polymer electrolyte material, polymer electrolyte molded product using the polymer electrolyte material and method for manufacturing the polymer electrolyte molded product, membrane electrode composite, and solid polymer fuel cell
    Patent number: 10026983
    Abstract: It is an object of the present invention to provide a polymer electrolyte material which has excellent proton conductivity even under the conditions of a low humidity or a low temperature and is excellent in mechanical strength and fuel barrier properties, and which moreover can achieve high output, high energy density and long-term durability in forming a polymer electrolyte fuel cell therefrom, and a polymer electrolyte form article using the same and a method for producing the same, a membrane electrode assembly and a polymer electrolyte fuel cell, each using the same. The present invention employs the following means.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: July 17, 2018
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Daisuke Izuhara, Yuriko Okada
  • POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MOLDED PRODUCT USING THE POLYMER ELECTROLYTE MATERIAL AND METHOD FOR MANUFACTURING THE POLYMER ELECTROLYTE MOLDED PRODUCT, MEMBRANE ELECTRODE COMPOSITE, AND SOLID POLYMER FUEL CELL
    Publication number: 20170222243
    Abstract: It is an object of the present invention to provide a polymer electrolyte material which has excellent proton conductivity even under the conditions of a low humidity or a low temperature and is excellent in mechanical strength and fuel barrier properties, and which moreover can achieve high output, high energy density and long-term durability in forming a polymer electrolyte fuel cell therefrom, and a polymer electrolyte form article using the same and a method for producing the same, a membrane electrode assembly and a polymer electrolyte fuel cell, each using the same. The present invention employs the following means.
    Type: Application
    Filed: April 18, 2017
    Publication date: August 3, 2017
    Inventors: Daisuke IZUHARA, Yuriko OKADA
  • Polymer electrolyte material, polymer electrolyte molded product using the polymer electrolyte material and method for manufacturing the polymer electrolyte molded product, membrane electrode composite, and solid polymer fuel cell
    Patent number: 9673468
    Abstract: It is an object of the present invention to provide a polymer electrolyte material which has excellent proton conductivity even under the conditions of a low humidity or a low temperature and is excellent in mechanical strength and fuel barrier properties, and which moreover can achieve high output, high energy density and long-term durability in forming a polymer electrolyte fuel cell therefrom, and a polymer electrolyte form article using the same and a method for producing the same, a membrane electrode assembly and a polymer electrolyte fuel cell, each using the same. The present invention employs the following means.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: June 6, 2017
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Daisuke Izuhara, Yuriko Okada
  • METHOD FOR PRODUCING POLYMER ELECTROLYTE MOLDED ARTICLE, POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MEMBRANE, AND POLYMER ELECTROLYTE FUEL CELL
    Publication number: 20150200413
    Abstract: The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.
    Type: Application
    Filed: March 20, 2015
    Publication date: July 16, 2015
    Inventors: Daisuke IZUHARA, Hiroshi TAIKO, Yuriko OKADA, Shinya ADACHI, Masataka NAKAMURA
  • POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MOLDED PRODUCT USING THE POLYMER ELECTROLYTE MATERIAL AND METHOD FOR MANUFACTURING THE POLYMER ELECTROLYTE MOLDED PRODUCT, MEMBRANE ELECTRODE COMPOSITE, AND SOLID POLYMER FUEL CELL
    Publication number: 20150155582
    Abstract: It is an object of the present invention to provide a polymer electrolyte material which has excellent proton conductivity even under the conditions of a low humidity or a low temperature and is excellent in mechanical strength and fuel barrier properties, and which moreover can achieve high output, high energy density and long-term durability in forming a polymer electrolyte fuel cell therefrom, and a polymer electrolyte form article using the same and a method for producing the same, a membrane electrode assembly and a polymer electrolyte fuel cell, each using the same. The present invention employs the following means.
    Type: Application
    Filed: June 13, 2014
    Publication date: June 4, 2015
    Inventors: Daisuke IZUHARA, Yuriko OKADA
  • Method for producing polymer electrolyte molded article, polymer electrolyte material, polymer electrolyte membrane, and polymer electrolyte fuel cell
    Patent number: 8986903
    Abstract: The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: March 24, 2015
    Assignee: Toray Industries, Inc.
    Inventors: Daisuke Izuhara, Hiroshi Taiko, Yuriko Okada, Shinya Adachi, Masataka Nakamura
  • POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MOLDED PRODUCT USING THE POLYMER ELECTROLYTE MATERIAL, AND METHOD FOR MANUFACTURING THE POLYMER ELECTROLYE MOLDED PRODUCT, MEMBRANE ELECTRODE COMPOSITE, AND SOLID POLYMER FUEL CELL
    Publication number: 20100196782
    Abstract: It is an object of the present invention to provide a polymer electrolyte material which has excellent proton conductivity even under the conditions of a low humidity or a low temperature and is excellent in mechanical strength and fuel barrier properties, and which moreover can achieve high output, high energy density and long-term durability in forming a polymer electrolyte fuel cell therefrom, and a polymer electrolyte form article using the same and a method for producing the same, a membrane electrode assembly and a polymer electrolyte fuel cell, each using the same. The present invention employs the following means.
    Type: Application
    Filed: August 8, 2007
    Publication date: August 5, 2010
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Daisuke Izuhara, Yuriko Okada
  • METHOD FOR PRODUCING POLYMER ELECTROLYTE MOLDED ARTICLE, POLYMER ELECTROLYTE MATERIAL, POLYMER ELECTROLYTE MEMBRANE, AND POLYMER ELECTROLYTE FUEL CELL
    Publication number: 20090208806
    Abstract: The present invention relates to a method for producing a polymer electrolyte molded article, which comprises forming a polymer electrolyte precursor having a protective group and an ionic group, and deprotecting at least a portion of protective groups contained in the resulting molded article to obtain a polymer electrolyte molded article. According to the present invention, it is possible to obtain a polymer electrolyte material and a polymer electrolyte molded article, which are excellent in proton conductivity and are also excellent in fuel barrier properties, mechanical strength, physical durability, resistance to hot water, resistance to hot methanol, processability and chemical stability. A polymer electrolyte fuel cell using a polymer electrolyte membrane, polymer electrolyte parts or a membrane electrode assembly can achieve high output, high energy density and long-term durability.
    Type: Application
    Filed: February 14, 2006
    Publication date: August 20, 2009
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Daisuke Izuhara, Hiroshi Taiko, Yuriko Okada, Shinya Adachi, Masataka Nakamura