Patents by Inventor Osami Matsumura

Osami Matsumura 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).

  • Device and method for inspecting scratches on cell external case
    Patent number: 8035373
    Abstract: It is possible to accurately and stably inspect a scratch in the vicinity of a surface of a cell external case formed by a cylindrical copper plate by using a simple device. The cell external case (1) is rotated around the center axis of the cylindrical shape by a rotation device (2) and a magnetic flux is applied to the rotating cell external case from both ends of a frame (4). When a scratch is present on the cell external case (1), leak magnetic flux is generated which is detected by a magnetic sensor (6) arranged in the vicinity of the cell external case (1) and displayed on a display device (12) via a signal processing device (11). Since the cylindrical cell external case (1) rotates around its center axis, the distance between its surface and the magnetic sensor (6) is not changed and a scratch can be detected stably.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: October 11, 2011
    Assignee: Toyo Kohan Co., Ltd.
    Inventor: Osami Matsumura
  • Device And Method For Inspecting Scratch On Cell External Case
    Publication number: 20080129287
    Abstract: It is possible to accurately and stably inspect a scratch in the vicinity of a surface of a cell external case formed by a cylindrical copper plate by using a simple device. The cell external case (1) is rotated around the center axis of the cylindrical shape by a rotation device (2) and a magnetic flux is applied to the rotating cell external case from both ends of a frame (4). When a scratch is present on the cell external case (1), leak magnetic flux is generated which is detected by a magnetic sensor (6) arranged in the vicinity of the cell external case (1) and displayed on a display device (12) via a signal processing device (11). Since the cylindrical cell external case (1) rotates around its center axis, the distance between its surface and the magnetic sensor (6) is not changed and a scratch can be detected stably.
    Type: Application
    Filed: October 25, 2005
    Publication date: June 5, 2008
    Inventor: Osami Matsumura