Patents by Inventor Koji Imabayashi

Koji Imabayashi 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).

  • Projection device
    Patent number: 4631594
    Abstract: A projecton device wherein a viscous body of transparent liquid is inserted between a CRT and an enlarging projection lens, which comprises: a ring-shaped spacer for determining the positional relation between the CRT and the lens unit provided therebetween; a ring-shaped packing provided between the CRT and the lens of the lens unit at the internal side of the spacer; a thin film section having elasticity provided as part of the packing; and a space provided between the spacer and the thin film section of the packing.
    Type: Grant
    Filed: June 11, 1985
    Date of Patent: December 23, 1986
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Koji Imabayashi, Hiroshi Kawamura, Shigeru Takeuchi, Masayoshi Shinobu, Shinobu Kawajiri