Patents by Inventor Tomohiro MAZAKI

Tomohiro MAZAKI 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).

  • Fuel cell separator and method of manufacturing the same
    Patent number: 11489170
    Abstract: A fuel cell separator includes a separator main body having a first surface and a second surface, and a first seal member disposed on the first surface. When a region on the first surface of the separator main body corresponding to an electrode member disposed on the second surface is defined as a power generation region, and a region on the first surface of the separator main body corresponding to an in-cell seal member is defined as a seal region, a displacement/vibration reducing member made of polymer is disposed at a part of the seal region. The displacement/vibration reducing member includes multiple protrusions and a coupling portion. When viewed in plan view, an axis line connecting the centers of the figures of the adjacent protrusions does not coincide with a center line passing through the widthwise center of the coupling portion. The coupling portion has a gate cut mark.
    Type: Grant
    Filed: December 1, 2020
    Date of Patent: November 1, 2022
    Assignees: Sumitomo Riko Company Limited, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideya Kadono, Shigeo Nakanishi, Shinobu Yamaguchi, Hitoshi Tamura, Shinichi Haga, Motohiro Mizuno, Kenji Sato, Takuya Kurihara, Tomohiro Mazaki
  • FUEL CELL SEPARATOR AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20210194018
    Abstract: A fuel cell separator includes a separator main body having a first surface and a second surface, and a first seal member disposed on the first surface. When a region on the first surface of the separator main body corresponding to an electrode member disposed on the second surface is defined as a power generation region, and a region on the first surface of the separator main body corresponding to an in-cell seal member is defined as a seal region, a displacement/vibration reducing member made of polymer is disposed at a part of the seal region. The displacement/vibration reducing member includes multiple protrusions and a coupling portion. When viewed in plan view, an axis line connecting the centers of the figures of the adjacent protrusions does not coincide with a center line passing through the widthwise center of the coupling portion. The coupling portion has a gate cut mark.
    Type: Application
    Filed: December 1, 2020
    Publication date: June 24, 2021
    Applicants: Sumitomo Riko Company Limited, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hideya KADONO, Shigeo NAKANISHI, Shinobu YAMAGUCHI, Hitoshi TAMURA, Shinichi HAGA, Motohiro MIZUNO, Kenji SATO, Takuya KURIHARA, Tomohiro MAZAKI