Patents by Inventor Akira Suzuka

Akira Suzuka 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).

  • Airtightness inspection method and airtightness inspection apparatus for sealed battery
    Patent number: 9470602
    Abstract: A soft packaged sealed battery is contained in an airtight container. The airtight container is decompressed and images of the surface shape of the sealed battery in the airtight container before and after decompression are captured by a CCD camera or the like. Whether or not airtightness of the sealed battery is maintained is determined based on a change in the captured images, e.g. a change in the surface shape appearing as luminance differences of pixels. By this determination method, highly accurate airtightness determination is realized by eliminating the influence of invisible fine creases on a sealed battery surface.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: October 18, 2016
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Takeshi Yasooka, Toshihiko Kamiya, Itaru Tamura, Akira Suzuka, Shunji Noda, Takuya Takatsuka
  • AIRTIGHTNESS INSPECTION METHOD AND AIRTIGHTNESS INSPECTION APPARATUS FOR SEALED BATTERY
    Publication number: 20130141571
    Abstract: A soft packaged sealed battery is contained in an airtight container. The airtight container is decompressed and images of the surface shape of the sealed battery in the airtight container before and after decompression are captured by a CCD camera or the like. Whether or not airtightness of the sealed battery is maintained is determined based on a change in the captured images, e.g. a change in the surface shape appearing as luminance differences of pixels. By this determination method, highly accurate airtightness determination is realized by eliminating the influence of invisible fine creases on a sealed battery surface.
    Type: Application
    Filed: June 15, 2011
    Publication date: June 6, 2013
    Inventors: Takeshi Yasooka, Toshihiko Kamiya, Itaru Tamura, Akira Suzuka, Shunji Noda, Takuya Takatsuka