Patents by Inventor Akira Mayahara

Akira Mayahara 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).

  • Metallic mold for cogged V-belt
    Patent number: 5110274
    Abstract: A metallic mold for vulcanizing molding of cogged V-belt with unvulcanized belt material, including a lower mold having a gentle back curve in lengthwise direction thereof and an upper mold having a cogged surface with cog peak parts and cog trough parts arranged alternately. The upper mold is so designed that cog peak parts in the specific range at both end portions thereof are narrower than those at the other part but both are the same in height in lengthwise direction.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: May 5, 1992
    Assignee: Bando Chemical Industries, Ltd.
    Inventors: Hirotaka Hatai, Akira Mayahara