Patents by Inventor Tetsuya Yakawa

Tetsuya Yakawa 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).

  • Film covered battery and method for screening same
    Patent number: 9837643
    Abstract: A film covered battery has a battery element equipped with a plurality of electrode plates laminated via separators, and an exterior film for hermetically sealing the battery element. A cover film is attached to a hollow present in predetermined regions set on a surface of the exterior film. The predetermined regions are regions obtained by removing overlap regions from projected regions obtained by projecting the electrode plates to the surface of the exterior film, the overlap regions being regions where the projected regions overlap with members interposed between the electrode plates at the outermost layers and the exterior film. It is possible to cover the hollow on the surface, without increasing the thickness of the film covered battery.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: December 5, 2017
    Assignees: AUTOMOTIVE ENERGY SUPPLY CORPORATION, NISSAN MOTOR CO., LTD.
    Inventors: Tsuguhiro Oonuma, Masatomo Mizuta, Yuko Hayashi, Akinori Miura, Tetsuya Yakawa
  • FILM COVERED BATTERY AND METHOD FOR SCREENING SAME
    Publication number: 20130284531
    Abstract: A film covered battery has a battery element equipped with a plurality of electrode plates laminated via separators, and an exterior film for hermetically sealing the battery element. A cover film is attached to a hollow present in predetermined regions set on a surface of the exterior film. The predetermined regions are regions obtained by removing overlap regions from projected regions obtained by projecting the electrode plates to the surface of the exterior film, the overlap regions being regions where the projected regions overlap with members interposed between the electrode plates at the outermost layers and the exterior film. It is possible to cover the hollow on the surface, without increasing the thickness of the film covered battery.
    Type: Application
    Filed: December 5, 2011
    Publication date: October 31, 2013
    Inventors: Tsuguhiro Oonuma, Masatomo Mizuta, Yuko Hayashi, Akinori Miura, Tetsuya Yakawa