Patents by Inventor Satoru Sumikawa

Satoru Sumikawa 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).

  • BATTERY CAN AND METHOD FOR PRODUCING THE SAME AND APPARATUS FOR PRODUCING BATTERY CAN
    Publication number: 20090274957
    Abstract: A bottomed cylindrical battery can of the present invention includes a bottom wall and a side wall each having a predetermined thickness and being uniform in thickness. Alternatively, the bottomed cylindrical battery can of the present invention includes a side wall having a predetermined thickness and being uniform in thickness therethroughout and a bottom wall having a bottom wall thickness increasing from the periphery to the center thereof. By thus configuring, it is possible to reduce the weight of the battery can without sacrificing the rigidity of the battery can, while achieving a reduction in the amount of material used.
    Type: Application
    Filed: July 17, 2009
    Publication date: November 5, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Yoshio GODA, Satoru Sumikawa, Seiichi Kato