Patents by Inventor Takeo Takei

Takeo Takei 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).

  • Push-button switch with liquid-crystal display
    Patent number: 5134505
    Abstract: The present invention provides a switch in which a liquid-crystal panel is arranged on the top side of a push-button so that such information as characters, symbols and figures is capable of being displayed, wherein a plurality of light-emitting bodies which emit light in a number of colors are arranged below the light-emitting panel so that the color of the liquid-crystal panel is capable of being changed. The liquid-crystal panel on the top surface of the push-button is white in color, a diffusing plate is disposed below the liquid-crystal panel, and the light-emitting bodies are arranged to oppose the periphery of the diffusing plate. As a result, the color of the overall display portion on the top surface of the push-button can be changed.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: July 28, 1992
    Assignee: Nihon Kaiheiki Industrial Company, Ltd.
    Inventors: Tokuo Tanaka, Takeo Takei