Patents by Inventor Douglas Alan Doi

Douglas Alan Doi 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: 20040132544
    Abstract: A golf club driver head comprised of a hollow body shell of a standard golf club driver shape. This shape has a front impact face plate, a bottom sole plate, a top crown shell, a curved rear wall, a heel, a toe, and a cylindrical hosel, which extends from the face, crown, and heel junction to attach to a shaft. This body is composed completely from cast or machined billet magnesium alloy. The body shell thickness is generally thicker than that in equivalent locations of metallic and other alloy driver heads of the same head volume. The face plate is thicker than that in the remainder of the body to provide a lower deflection surface, improve durability, and to maintain a forward center of gravity. The result of such a large head is a much larger hitting sweet spot and corresponding increased driver accuracy and control.
    Type: Application
    Filed: January 8, 2003
    Publication date: July 8, 2004
    Inventor: Douglas Alan Doi