Patents by Inventor Tsai Ching Cheng

Tsai Ching Cheng 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: 6705782
    Abstract: A keyboard for a computer includes a bottom board arranged to contain keys, and a sealing layer adhered to the lower surface of the bottom board; wherein the sealing layer is installed with a dividing structure consisted of at least one or more grooves, slits or apertures. The dividing structure is used for breaking up the totality of the sealing layer, so that when the bottom board and the sealing layer are to be adhered integrally via the baking procedure, the condition of distortion therebetween caused by the different thermal expansion coefficients of the two materials due to temperature change is to be prevented, so as to maintain the smoothness of the keyboard, and expedite the assembly process.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: March 16, 2004
    Assignee: Chicony Electronics Co., Ltd.
    Inventor: Tsai Ching Cheng
  • Publication number: 20030123916
    Abstract: A keyboard for computer system, at least comprising a bottom board to contain keys, and a sealing layer adhered to the lower surface of the bottom board; wherein the sealing layer is installed with a dividing mechanism consisted of at least one or more grooves, slits or apertures. The dividing mechanism is used for breaking up the totality of the sealing layer, so that when the bottom board and the sealing layer are to be adhered integrally via the baking procedure, the condition of distortion therebetween caused by the different thermal expansion coefficients of the two materials due to temperature change is to be prevented, so as to maintain the smoothness of the keyboard, and expedite the assembly process.
    Type: Application
    Filed: December 27, 2001
    Publication date: July 3, 2003
    Applicant: Chicony Electronics Co., Ltd.
    Inventor: Tsai Ching Cheng