Patents by Inventor Dick C. K. Liu

Dick C. K. Liu 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: 6498311
    Abstract: A highly legible key that is durable and suitable for electronic devices, including gaming consoles and controllers. The key includes an outer layer and an inner layer and may be formed by a two-shot injection molding process. The outer layer has a cavity delineating a negative form of a desired indicia or indicium. The inner layer is located interior to the outer layer filling the negative form with the desired indicium. The outer layer is formed of transparent or translucent material and the inner layer is formed of an opaque or darker material, such that, the indicium is visible through the outer layer material. The outer layer can be tinted. The outer layer protects and magnifies the indicium of the inner layer. The inner layer in the region of the indicium can be domed for increased visibility. The outer layer can have a dome surface, which is on a slope for improved finger-to-button contact. The outer layer can have a step and a tab for retaining the button in an electronic device housing.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: December 24, 2002
    Assignee: Microsoft Corporation
    Inventors: James R. Stewart, Hok-Sum Horace Luke, Dick C. K. Liu
  • Patent number: 5990871
    Abstract: A pointing device that is ergonomically designed is shown and described. In a preferred embodiment designed for children aged 2-6, a relatively large ball is provided in a housing which has a gripping area or handle for each hand of a user, a portion of the ball extending from an upper surface of the housing. A button is provided in a front region of the housing, the placement, shape and size of the button being configured to optimize the target area and activation of the button by the user. The size of the ball and the configuration of the housing provide a pointing device that is easy and comfortable for a child aged 2-6 to use, the pointing device being designed to accommodate the hand size, motor control, and postural needs of young children.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: November 23, 1999
    Assignee: Microsoft Corporation
    Inventors: Aditha May Adams, Steven T. Kaneko, Ferdinand van Engelen, Christopher Alviar, Dick C. K. Liu, Dana Kim, Bridget Cameron Greenberg
  • Patent number: D377485
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: January 21, 1997
    Assignee: Microsoft Corporation
    Inventors: Steven T. Kaneko, Aditha M. Adams, Christopher Alviar, Ferdinand van Engelen, Dana Kim, Bridget C. Greenberg, Dick C. K. Liu
  • Patent number: D378517
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: March 18, 1997
    Assignee: Microsoft Corporation
    Inventors: Steven T. Kaneko, Aditha M. Adams, Christopher Alviar, Ferdinand van Engelen, Dana Kim, Bridget C. Greenberg, Dick C. K. Liu
  • Patent number: D382261
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: August 12, 1997
    Assignee: Microsoft Corporation
    Inventors: Steven T. Kaneko, Aditha May Adams, Christopher Alviar, Ferdinand van Engelen, Dana Kim, Bridget Cameron Greenberg, Dick C. K. Liu
  • Patent number: D399499
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: October 13, 1998
    Assignee: Microsoft Corporation
    Inventors: Steven T. Kaneko, Aditha May Adams, Christopher Alviar, Ferdinand van Engelen, Dana Kim, Bridget Cameron Greenberg, Dick C. K. Liu