Patents by Inventor Kenji Kanegawa

Kenji Kanegawa 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).

  • Golf club and method of manufacturing the golf club
    Patent number: 6666779
    Abstract: A golf club according to the present invention comprises a face portion (1) and a neck portion (2), and metal flow lines (3) continue from the face portion (1) to the neck portion (2). These metal flow lines (3) extend in a single direction on the face portion (1). A method of manufacturing a golf club according to the present invention comprises steps of bending a rod member subjected to drawing plastic working on an end and forging the rod member after the bending for integrally molding a face portion (1) and a neck portion (2).
    Type: Grant
    Filed: August 2, 2001
    Date of Patent: December 23, 2003
    Assignees: Mizuno Corporation, Chuo Industries, Ltd.
    Inventors: Mototaka Iwata, Kiyotaka Chaen, Isamu Toshinari, Kenji Kanegawa