Patents by Inventor Kyoko NAKAI

Kyoko NAKAI 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 manufacturing fuel cell and fuel cell
    Patent number: 11367881
    Abstract: An object of the present disclosure is to provide a method for manufacturing a fuel cell that ensures developing a high adhesive strength to a separator. One aspect of an embodiment is a method for manufacturing a fuel cell where a pair of separators are mutually bonded with a sealing member. The sealing member includes a thermoplastic resin containing a crystalline polymer as an adhesive layer. The method for manufacturing the fuel cell includes: preparing a stack structure in which the sealing member is disposed between the pair of separators; heating the stack structure at a melting point or higher of the thermoplastic resin; after the heating, holding the stack structure in a temperature range of ±10° C. of a crystallization temperature of the thermoplastic resin to promote a crystallization of the thermoplastic resin; and after the holding, further cooling the stack structure.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: June 21, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki Sugimoto, Makoto Yoshida, Shunsuke Suzuki, Tomokazu Hayashi, Shinya Takeshita, Takuya Mitsuoka, Yoshitake Suganuma, Yuichi Kato, Kyoko Nakai
  • METHOD FOR MANUFACTURING FUEL CELL AND FUEL CELL
    Publication number: 20200028187
    Abstract: An object of the present disclosure is to provide a method for manufacturing a fuel cell that ensures developing a high adhesive strength to a separator. One aspect of an embodiment is a method for manufacturing a fuel cell where a pair of separators are mutually bonded with a sealing member. The sealing member includes a thermoplastic resin containing a crystalline polymer as an adhesive layer. The method for manufacturing the fuel cell includes: preparing a stack structure in which the sealing member is disposed between the pair of separators; heating the stack structure at a melting point or higher of the thermoplastic resin; after the heating, holding the stack structure in a temperature range of ±10° C. of a crystallization temperature of the thermoplastic resin to promote a crystallization of the thermoplastic resin; and after the holding, further cooling the stack structure.
    Type: Application
    Filed: July 15, 2019
    Publication date: January 23, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshiki SUGIMOTO, Makoto YOSHIDA, Shunsuke SUZUKI, Tomokazu HAYASHI, Shinya TAKESHITA, Takuya MITSUOKA, Yoshitake SUGANUMA, Yuichi KATO, Kyoko NAKAI
  • Amorphous hydrocarbon based film, and sliding member and sliding system with said film
    Patent number: 10329509
    Abstract: A low-friction coating includes: an aliphatic hydrocarbon group showing a peak in a region of 2,900 cm?1 to 3000 cm?1 in an infrared absorption spectrum; a carbonyl group showing a peak in a region of 1,650 cm?1 to 1,800 cm?1 in an infrared absorption spectrum; an aromatic component (C7H7+) showing a peak at mass 91.1 in a positive ion spectrum obtained by TOF-SIMS; and a condensed ring based component (C9H7+) showing a peak at mass 115.2 in the positive ion spectrum obtained by TOF-SIMS.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: June 25, 2019
    Assignees: JTEKT CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Takahisa Kato, Masataka Nosaka, Mamoru Tohyama, Atsushi Murase, Kyoko Nakai, Masahiro Suzuki
  • Amorphous hydrocarbon based film, and sliding member and sliding system with said film
    Patent number: 10202560
    Abstract: A low-friction coating includes: an aliphatic hydrocarbon group showing a peak in a region of 2,900 cm?1 to 3000 cm?1 in an infrared absorption spectrum; a carbonyl group showing a peak in a region of 1,650 cm?1 to 1,800 cm?1 in an infrared absorption spectrum; an aromatic component (C7H7+) showing a peak at mass 91.1 in a positive ion spectrum obtained by TOF-SIMS; and a condensed ring based component (C9H7+) showing a peak at mass 115.2 in the positive ion spectrum obtained by TOF-SIMS.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: February 12, 2019
    Assignees: JTEKT CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Takahisa Kato, Masataka Nosaka, Mamoru Tohyama, Atsushi Murase, Kyoko Nakai, Masahiro Suzuki
  • AMORPHOUS HYDROCARBON BASED FILM, AND SLIDING MEMBER AND SLIDING SYSTEM PROVIDED WITH SAID FILM
    Publication number: 20180023016
    Abstract: A low-friction coating includes: an aliphatic hydrocarbon group showing a peak in a region of 2,900 cm?1 to 3000 cm?1 in an infrared absorption spectrum; a carbonyl group showing a peak in a region of 1,650 cm?1 to 1,800 cm?1 in an infrared absorption spectrum; an aromatic component (C7H7+) showing a peak at mass 91.1 in a positive ion spectrum obtained by TOF-SIMS; and a condensed ring based component (C9H7+) showing a peak at mass 115.2 in the positive ion spectrum obtained by TOF-SIMS.
    Type: Application
    Filed: January 29, 2016
    Publication date: January 25, 2018
    Applicants: JTEKT CORPORATION, THE UNIVERSITY OF TOKYO
    Inventors: Takahisa KATO, Masataka NOSAKA, Mamoru TOHYAMA, Atsushi MURASE, Kyoko NAKAI, Masahiro SUZUKI