Patents by Inventor Kohsei Miyabe

Kohsei Miyabe 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).

  • Liquid crystal display unit having an enclosed space between the liquid crystal cell and at least one polarizer
    Patent number: 5508830
    Abstract: In a liquid crystal display unit for use in a liquid crystal projector used in a high-temperature environment, this invention is directed to provide a liquid crystal display unit which prevents deterioration of the display unit and deformation of a polarizer plate due to temperature, and has a dust-proofing effect for a liquid crystal cell. The liquid crystal display unit 1 comprises at least one liquid crystal cell 2 and at least one polarizer member 3, and further includes a frame member 5 disposed for forming a space 4 between the polarizer member 3 and the liquid crystal cell 2, a vent hole 6 formed at at least a part of the frame member 5 and a filter 7 disposed in at least a part of the vent hole 6.
    Type: Grant
    Filed: February 25, 1994
    Date of Patent: April 16, 1996
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Satoshi Imoto, Kohsei Miyabe, Katsuo Matsuyama