Patents by Inventor Coeman L. S. Wong

Coeman L. S. Wong 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).

  • Display with an array of electromagnetically operable elements
    Patent number: 6111759
    Abstract: A display array including a board resembling a printed circuit board or printed wiring board to which are pivotally mounted a plurality of display elements whose appearance in a viewing direction is controlled by a sense of magnetization of a core which extends through a bore in the board. A conducting coil formed on the surface of the board is located so that current in the coil will magnetize the core.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: August 29, 2000
    Assignee: Mark IV Industries Limited
    Inventors: Veso S. Tijanic, Matthew D. Dennis, Coeman L. S. Wong, Van H. Le
  • Board for mounting display element
    Patent number: 5933329
    Abstract: A board usually resembling a PCB or a PWB mounts a display element, whose appearance in a viewing direction is controlled by the sense of magnetization of a core which extends through a bore in the board. A conducting coil formed on the surface of said board is located so that current in said coil will magnetize the core.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: August 3, 1999
    Assignee: Mark IV Industries Limited
    Inventors: Veso S. Tijanoc, Matthew D. Dennis, Coeman L. S. Wong, Van H. Le
  • Electromagnetic disk and method of making
    Patent number: 5858158
    Abstract: A magnetic disk to selectively display opposite colored sides is constructed by providing upper, lower and middle tape layers. The middle layer is punched to provide a series of magnet receptacles when the upper and lower layers are added. The lower layer is added to the middle layer and the magnet inserted. The upper layer is applied and the magnet is magnetized before individual disk elements are detached from the tape. The upper layer may be constructed from a plurality of sub layers. The sub layers may be combined in a separate step before the upper layer is applied to the middle. The upper tape may be applied to the middle by pressure sensitive adhesive. The upper tape sub layers may be an outer clear layer and an inner colored layer, which clear layer may be treated for ultra violet filtering and to provide a matte finish.
    Type: Grant
    Filed: August 5, 1993
    Date of Patent: January 12, 1999
    Assignee: Mark IV Industries Limited
    Inventor: Coeman L. S. Wong
  • Board for mounting display element
    Patent number: 5809675
    Abstract: A board usually resembling a PCB or a PWB mounts a display element, whose appearance in a viewing direction is controlled by the sense of magnetization of a core which extends through a bore in the board. A conducting coil formed on the surface of said board is located so that current in said coil will magnetize the core.
    Type: Grant
    Filed: May 6, 1997
    Date of Patent: September 22, 1998
    Assignee: Mark IV Industries Ltd.
    Inventors: Veso S. Tijanic, Matthew D. Dennis, Coeman L. S. Wong, Van H. Le
  • High speed display device
    Patent number: 4949082
    Abstract: Display element has electromagnetic drive and two rotatable vanes which exhibit a display area to the viewer in ON mode and occlude it in OFF mode. Side walls may be used to prevent viewing the display area from the side in the OFF mode.
    Type: Grant
    Filed: July 6, 1988
    Date of Patent: August 14, 1990
    Assignee: NEI Canada Limited
    Inventors: Armand Yazdani, Coeman L. S. Wong