Patents by Inventor Mamoru Saraie

Mamoru Saraie 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).

  • Publication number: 20020065140
    Abstract: A groove is provided a surface on a cavity portion side of a sole portion in a head portion of an iron golf club, and a thickness of a ball hitting portion in a face portion is made larger than a thickness of a top edge side portion of the face portion and at least as large as a thickness of a sole side portion of the face portion. In a golf club set according to the present invention, the groove has the greatest depth in a long iron golf club, while the groove has the smallest depth in a short iron golf club or no groove is provided in the short iron golf club.
    Type: Application
    Filed: October 12, 2001
    Publication date: May 30, 2002
    Inventors: Mototaka Iwata, Isamu Toshinari, Tomomi Watanabe, Mamoru Saraie, Kiyotaka Chaen