Patents by Inventor Shinichi Ohhasi

Shinichi Ohhasi 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).

  • Laminated moistureproof film with silicon oxide core layer
    Patent number: 5112673
    Abstract: There are provided two types of moistureproof films of a laminated structure. The first type of moistureproof film comprises a core layer (A) and a protective layer (B) joined to one side of the core layer, wherein: (a) the core layer (A) is composed of a transparent film of a polyvinyl alcohol having a degree of saponification of 99 mol % or higher, the film having a silicon oxide thin film formed on at least one side thereof; and (b) the protective layer (B) is composed of a transparent film including at least one layer of a transparent plastic film having a transparent silicon oxide thin film formed on at least one side thereof.
    Type: Grant
    Filed: December 5, 1989
    Date of Patent: May 12, 1992
    Assignee: Mitsubishi Kasei Polytec Company
    Inventors: Tsutomu Sawada, Shinichi Ohhasi, Shigenobu Yoshida