Patents by Inventor Sigeru Ozawa

Sigeru Ozawa 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).

  • Flow control device
    Patent number: 6962320
    Abstract: A flow control device includes a wall part partitioning an upstream side and a downstream side of a flow passage for fluid, an aperture part formed on the wall part, a sheet shaped valve element which changes from a closed state in which the sheet shaped valve element extends along the wall part to cover the aperture part to an opened state in which the aperture part is opened and a valve element drive mechanism for moving the sheet shaped valve element.
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: November 8, 2005
    Assignee: Sankyo Seiki Mfg. Co., Ltd.
    Inventor: Sigeru Ozawa