Patents by Inventor Long K. Truong

Long K. Truong 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).

  • Patent number: 4680103
    Abstract: An improved electrophoretic display device is provided including a first electrode, an opposed grid structure, and dielectric fluid having a plurality of inorganic pigment particles coated with an organosilane derivative movable between positions adjacent the electrodes during operation. The organosilane derivative preferably includes a quaternary ammonium moiety. The positively charged, pigment particles are rapidly released from the first, or viewing, electrode and are resistant to agglomeration.
    Type: Grant
    Filed: January 24, 1986
    Date of Patent: July 14, 1987
    Assignee: EPID. Inc.
    Inventors: Beilin Solomon I., Long K. Truong
  • Patent number: 4620916
    Abstract: Degradation retardants reduce electrochemical degradations and provide significantly increased operation lifetimes for the colloidal suspensions of electrophoretic display devices. Suitable degradation retardants include redox agents capable of being repeatedly, reversibly oxidized and reduced in the colloidal suspensions.
    Type: Grant
    Filed: September 19, 1985
    Date of Patent: November 4, 1986
    Inventors: Dirk A. Zwemer, Solomon I. Beilin, Long K. Truong, Lewis T. Lipton