Patents by Inventor Chiyoko Iwano

Chiyoko Iwano 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).

  • Replica plate, process for producing the same and projection type television using the same
    Patent number: 5071236
    Abstract: This invention relates to a replica plate having a transparent plastic substrate and a photo-cured resin, and a projection type television using the replica plate. An adhesive layer comprising an acrylic or methacrylic compound is provided between a transparent plastic plate and a replica-forming photo-curable resin, whereby it is possible to enhance the adhesion between the surface of the transparent plastic plate and the photo-cured resin, and to produce a replica plate having excellent optical characteristics, good replicating properties and high reliability. The adhesive layer can be provided (1) by coating a layer containing the acrylic or methacrylic compound on the plastic plate, the compound infiltrating into the plate, or (2) by incorporating the acrylic or methacrylic compound into the photo-curable resin, the compound infiltrating therefrom into the plate; in this latter technique, the plate coated with the resin should be heated.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: December 10, 1991
    Assignee: Hitachi, Ltd.
    Inventors: Ryoichi Sudo, Chiyoko Iwano, Hiroaki Miwa, Tetsuo Tajima, Hiroyuki Onodera