Patents by Inventor Kenji Saruwatari

Kenji Saruwatari 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).

  • Rectangular battery
    Patent number: 9455422
    Abstract: Disclosed is a rectangular battery in which an electrode group formed by winding a first electrode and a second electrode with a separator interposed therebetween is housed in a battery case having an opening sealed by a sealing plate. The first electrode is electrically connected to the sealing plate, and the second electrode is electrically connected to a current collector plate provided between the sealing plate and the electrode group and extending along a longer side direction of the sealing plate. The sealing plate has a lower-strength portion configured to be deformed prior to the other portions of the sealing plate to provide a contact between the sealing plate and the current collector plate when the sealing plate receives an external pressure along the longer side direction of the sealing plate.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: September 27, 2016
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Mizuo Iwasaki, Kenji Saruwatari, Kazuhiko Watanabe, Shinpei Yamagami, Yasushi Nakagiri
  • RECTANGULAR BATTERY
    Publication number: 20140154544
    Abstract: Disclosed is a rectangular battery in which an electrode group formed by winding a first electrode and a second electrode with a separator interposed therebetween is housed in a battery case having an opening sealed by a sealing plate. The first electrode is electrically connected to the sealing plate, and the second electrode is electrically connected to a current collector plate provided between the sealing plate and the electrode group and extending along a longer side direction of the sealing plate. The sealing plate has a lower-strength portion configured to be deformed prior to the other portions of the sealing plate to provide a contact between the sealing plate and the current collector plate when the sealing plate receives an external pressure along the longer side direction of the sealing plate.
    Type: Application
    Filed: May 7, 2012
    Publication date: June 5, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Mizuo Iwasaki, Kenji Saruwatari, Kazuhiko Watanabe, Shinpei Yamagami, Yasushi Nakagiri