Patents by Inventor Shigehiko Miyamoto

Shigehiko Miyamoto 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).

  • Recording paper
    Patent number: 4335184
    Abstract: A recording paper improved in image quality, comprising a base paper, the pH of its cold water extract being 5.0 to 10.0, and, disposed thereon, a coating layer containing a saponified-type petroleum resin sizing agent.
    Type: Grant
    Filed: October 14, 1980
    Date of Patent: June 15, 1982
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Shigehiko Miyamoto, Yoshinobu Watanabe