Patents by Inventor Yoshiharu Yui

Yoshiharu Yui 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).

  • Transparent reflection-type
    Patent number: 4856857
    Abstract: A transparent-type hologram comprising a transparent hologram-forming layer and a holographic effect-enhancing layer comprising a thin transparent film, the holographic effect-enhancing layer being laminated on the hologram-forming portion of the transparent hologram-forming layer. The holographic effect-enhancing layer has a refractive index different from that of the transparent hologram-forming layer.
    Type: Grant
    Filed: September 26, 1988
    Date of Patent: August 15, 1989
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Satoshi Takeuchi, Koutaro Danjo, Shigehiko Tahara, Yoshiharu Yui, Satoshi Ikeda