Patents by Inventor Natsumi YOSHIMURA

Natsumi YOSHIMURA 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: 20240386913
    Abstract: There is provided a fluorine-containing ether compound represented by following formula: R1—R2—CH2—R3[—CH2—R4—CH2R3?]n—CH2—R5—R6 (n is 1 or 2; R3 and R3? are a perfluoropolyether chain; R4 is a divalent linking group having one polar group; R2 and R5 are a divalent linking group having one or more polar groups; R2 has an oxygen atom at an end that is bonded to R1; R5 has an oxygen atom at an end that is bonded to R6; R1 and R6 in end group bonded to an oxygen atom at an end of R2 or R5; and R1 and R6 are an organic group having 1 to 50 carbon atoms, and at least one of them is a group in which a carbonyl carbon atom or nitrogen atom constituting an amide bond is bonded to a carbon atom of an organic group having 1 to 8 carbon atoms).
    Type: Application
    Filed: August 31, 2022
    Publication date: November 21, 2024
    Applicant: Resonac Corporation
    Inventors: Yutaka TANJI, Tsuyoshi KATO, Daisuke YAGYU, Natsumi YOSHIMURA, Takuma KURODA, Chizuru KASAHARA, Naoya FUKUMOTO, Ayano ASANO
  • Patent number: 10947339
    Abstract: Provided are an anion exchange resin being capable of producing an electrolyte membrane for a fuel cell, a binder for forming an electrode catalyst layer and a fuel cell electrode catalyst layer, which have an improved physical property (anion conductivity); a method for producing thereof; an electrolyte membrane for a fuel cell, a binder for forming an electrode catalyst layer and a fuel cell electrode catalyst layer produced from the anion exchange resin; and a fuel cell having the electrolyte membrane or the electrode catalyst layer.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: March 16, 2021
    Assignees: UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION CO., LTD.
    Inventors: Kenji Miyatake, Junpei Miyake, Hideaki Ono, Manai Shimada, Naoki Yokota, Natsumi Yoshimura, Koichiro Asazawa, Eriko Nishino
  • Patent number: 10734663
    Abstract: An anion exchange resin capable of producing an electrolyte membrane, a binder for forming an electrode catalyst layer and a fuel cell electrode catalyst layer, which have improved chemical properties and mechanical properties; an electrolyte membrane and a binder for forming an electrode catalyst layer produced from the anion exchange resin; and a fuel cell having the electrolyte membrane or the electrode catalyst layer.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: August 4, 2020
    Assignees: UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION CO., LTD.
    Inventors: Kenji Miyatake, Junpei Miyake, Hideaki Ono, Manai Shimada, Naoki Yokota, Natsumi Yoshimura, Aoi Takano, Koichiro Asazawa, Eriko Nishino, Yui Kuwabara
  • Patent number: 10727515
    Abstract: An anion exchange resin capable of producing an electrolyte membrane, a binder for forming an electrode catalyst layer and a fuel cell electrode catalyst layer, which have improved electrical properties; an electrolyte membrane and a binder for forming an electrode catalyst layer produced from the anion exchange resin; and a fuel cell having the electrolyte membrane or the electrode catalyst layer.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: July 28, 2020
    Assignees: UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION CO., LTD.
    Inventors: Kenji Miyatake, Junpei Miyake, Hideaki Ono, Manai Shimada, Naoki Yokota, Natsumi Yoshimura, Aoi Takano, Koichiro Asazawa, Eriko Nishino, Yui Kuwabara
  • Patent number: 10471420
    Abstract: The present invention provides a cation exchange resin, and a cation exchange membrane and an electrolyte membrane for a fuel cell using the same. The cation exchange resin comprises a divalent hydrophobic unit; and a divalent hydrophilic unit having divalent hydrophilic groups which are repeated via carbon-carbon bond. The divalent hydrophilic groups being composed of one aromatic ring, or being composed of a plurality of aromatic rings which are bonded to each other via a divalent hydrocarbon group, a divalent silicon-containing group, a divalent nitrogen-containing group, a divalent phosphorus-containing group, a divalent oxygen-containing group, a divalent sulfur-containing group, or carbon-carbon bond, and at least one of the aromatic rings having a cation exchange group; wherein the hydrophobic unit and the hydrophilic unit are bonded to each other via carbon-carbon bond.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: November 12, 2019
    Assignees: UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION CO., LTD.
    Inventors: Kenji Miyatake, Makoto Uchida, Jyunpei Miyake, Takashi Mochizuki, Hideaki Ono, Manai Shimada, Naoki Yokota, Natsumi Yoshimura
  • Publication number: 20190027767
    Abstract: An anion exchange resin capable of producing an electrolyte membrane, a binder for forming an electrode catalyst layer and a fuel cell electrode catalyst layer, which have improved chemical properties and mechanical properties; an electrolyte membrane and a binder for forming an electrode catalyst layer produced from the anion exchange resin; and a fuel cell having the electrolyte membrane or the electrode catalyst layer.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 24, 2019
    Applicants: UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION JAPAN CO., LTD.
    Inventors: Kenji MIYATAKE, Junpei MIYAKE, Hideaki ONO, Manai SHIMADA, Naoki YOKOTA, Natsumi YOSHIMURA, Aoi TAKANO, Koichiro ASAZAWA, Eriko NISHINO, Yui KUWABARA
  • Publication number: 20190027768
    Abstract: An anion exchange resin capable of producing an electrolyte membrane, a binder for forming an electrode catalyst layer and a fuel cell electrode catalyst layer, which have improved electrical properties; an electrolyte membrane and a binder for forming an electrode catalyst layer produced from the anion exchange resin; and a fuel cell having the electrolyte membrane or the electrode catalyst layer.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 24, 2019
    Applicants: UNIVERSITY OF YAMANASHI, TAKAHATA PRECISION JAPAN CO., LTD.
    Inventors: Kenji MIYATAKE, Junpei MIYAKE, Hideaki ONO, Manai SHIMADA, Naoki YOKOTA, Natsumi YOSHIMURA, Aoi TAKANO, Koichiro ASAZAWA, Eriko NISHINO, Yui KUWABARA
  • Publication number: 20180265626
    Abstract: Provided are an anion exchange resin being capable of producing an electrolyte membrane for a fuel cell, a binder for forming an electrode catalyst layer and a fuel cell electrode catalyst layer, which have an improved physical property (anion conductivity); a method for producing thereof; an electrolyte membrane for a fuel cell, a binder for forming an electrode catalyst layer and a fuel cell electrode catalyst layer produced from the anion exchange resin; and a fuel cell having the electrolyte membrane or the electrode catalyst layer.
    Type: Application
    Filed: September 20, 2016
    Publication date: September 20, 2018
    Applicants: University of Yamanashi, Takahata Precision Japan Co., Ltd.
    Inventors: Kenji MIYATAKE, Junpei MIYAKE, Hideaki ONO, Manai SHIMADA, Naoki YOKOTA, Natsumi YOSHIMURA, Koichiro ASAZAWA, Eriko NISHINO
  • Publication number: 20180178210
    Abstract: A cation exchange resin having improved chemical properties and mechanical properties, and a cation exchange membrane and an electrolyte membrane for a fuel cell using the same are provided. A cation exchange resin is used, the cation exchange resin comprising: a divalent hydrophobic unit; and a divalent hydrophilic unit having divalent hydrophilic groups which are repeated via carbon-carbon bond, the divalent hydrophilic groups being composed of one aromatic ring, or being composed of a plurality of aromatic rings which are bonded to each other via a divalent hydrocarbon group, a divalent silicon-containing group, a divalent nitrogen-containing group, a divalent phosphorus-containing group, a divalent oxygen-containing group, a divalent sulfur-containing group, or carbon-carbon bond, at least one of the aromatic rings having a cation exchange group; wherein the hydrophobic unit and the hydrophilic unit are bonded to each other via carbon-carbon bond.
    Type: Application
    Filed: June 29, 2016
    Publication date: June 28, 2018
    Applicants: University of Yamanashi, Takahata Precision Japan Co., Ltd.
    Inventors: Kenji MIYATAKE, Makoto UCHIDA, Jyunpei MIYAKE, Takashi MOCHIZUKI, Hideaki ONO, Manai SHIMADA, Naoki YOKOTA, Natsumi YOSHIMURA