Patents by Inventor Yoko Mandokoro

Yoko Mandokoro 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).

  • Sheet stand
    Patent number: 6129323
    Abstract: A sheet stand which stands a sheet, such as a piece of paper, with a simple operation. The sheet stand includes the sheet stand body 20 and the ball 30. The bottom of the sheet is held between the curved holding surface 21 of the sheet stand body 20 and the ball 30. Then, the ball 30 moves toward the curved surface 24 at the holding surface 21 by its own self-weight, thereby grabbing the bottom of the sheet bending the bottom portion inside to make the sheet firmer to stand.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: October 10, 2000
    Assignee: Daishin Kohsan Co., Ltd.
    Inventors: Kenjiro Mandokoro, Yoko Mandokoro
  • Sheet stand
    Patent number: D424118
    Type: Grant
    Filed: February 26, 1999
    Date of Patent: May 2, 2000
    Assignee: Daishin Kohsan Co., Ltd.
    Inventors: Kenjiro Mandokoro, Yoko Mandokoro
  • Sheet stand
    Patent number: D424621
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: May 9, 2000
    Assignee: Daishin Kohsan Co., Ltd.
    Inventors: Kenjiro Mandokoro, Yoko Mandokoro