Patents by Inventor Tetsuya Shiizaki

Tetsuya Shiizaki 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).

  • Publication number: 20210210821
    Abstract: A power supply device has; a battery stacked body where a plural sheets of battery cells each having a positive electrode terminal and a negative electrode terminal at one surface thereof are stacked; and a plurality of bus bars which connect the electrode terminals in the battery cells adjacently disposed. Each of the bus bars partially has a thin area whose thickness is thinner than a thickness of the other area, and an open window formed in the dun area, and opening a portion thereof. The thin area is formed in an oval shape elongated in the battery cell stacking direction, and the open window extends in a direction along the length of the oval shape. This configuration allows the thin area, above and below the length side of the oval shaped thin area, to be secured as a joining area for laser welding or the like.
    Type: Application
    Filed: January 12, 2017
    Publication date: July 8, 2021
    Applicant: SANYO Electric Co., Ltd.
    Inventors: Wataru Okada, Shinji Ota, Tetsuya Shiizaki
  • Patent number: 6882612
    Abstract: An RF signal is read from a rewritable DVD while rotating the rewritable DVD. The read RF signal is converted to pulse signals according to different threshold values, and the number of pulses of each pulse signal is counted. Indexes IBSmin, IBMmax, IBS, and IBRmax are determined from the relationship between the counted numbers and the threshold values, and the recording quality of the BCA on the rewritable DVD is evaluated by judging whether these indexes satisfy the following inequalities: IBMmax/IBSmin?0.8 IBRmax/IBS?1.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: April 19, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tetsuya Shiizaki, Saburo Kubota, Katsuhiro Kida
  • Publication number: 20020057639
    Abstract: An RF signal is read from a rewritable DVD while rotating the rewritable DVD. The read RF signal is converted to pulse signals according to different threshold values, and the number of pulses of each pulse signal is counted.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 16, 2002
    Inventors: Tetsuya Shiizaki, Saburo Kubota, Katsuhiro Kida