Patents by Inventor Shigeyoshi Itou

Shigeyoshi Itou 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).

  • Glass article having surface coating of hydroxy acid and method of manufacturing the same
    Patent number: 6673162
    Abstract: A glass article comprising a glass body having a surface and a water-soluble surface-protection film formed on the surface. The water-soluble surface-protection film is made of hydroxy acid or salt thereof. The hydroxy acid or the salt thereof is one or more kinds selected from the group consisting of citric acid, tartaric acid, malic acid, gluconic acid and salts thereof. An example of the glass body is a funnel part having an anode button for a CRT.
    Type: Grant
    Filed: October 6, 2000
    Date of Patent: January 6, 2004
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Yoshiharu Miwa, Yoshinobu Saji, Shigeyoshi Itou