Patents by Inventor Masayoshi Kusakabe

Masayoshi Kusakabe 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).

  • Molds used for blowing glass articles
    Patent number: 4566895
    Abstract: In order to form a steam cushion between a glass and a metal mold during operation blowing the glass in the mold, the mold is provided with a large number of small holes mechanically-formed in and distributed over the inner surface of the mold for retaining water therein. Since the metallic inner surface of the mold is directly exposed to the molding cavity of the mold, the mold is not substantially subjected to abrasion and burning during the blowing operation so that the working life of the mold is extended.
    Type: Grant
    Filed: June 17, 1985
    Date of Patent: January 28, 1986
    Assignee: Nippon Electric Glass Company, Limited
    Inventor: Masayoshi Kusakabe