Patents by Inventor Kinichi Kizawa

Kinichi Kizawa 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).

  • Lightsafe masking film
    Patent number: 4937116
    Abstract: A lightsafe masking film for use in masking a roomlight film is disclosed which comprises a substrate, and a transparent, lightsafe layer peelably provided over the surface of said substrate and containing finely divided particles of an inorganic metal compound capable of blocking ultraviolet light to which the roomlight film is sensitive.
    Type: Grant
    Filed: February 21, 1989
    Date of Patent: June 26, 1990
    Assignee: Somar Corporation
    Inventors: Kinichi Kizawa, Naohiko Kiryu