Patents by Inventor Kazutoshi Tsuge

Kazutoshi Tsuge 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).

  • Drawing method and apparatus
    Patent number: 5701777
    Abstract: A drawing apparatus includes blank holder and an opposing die for holding a blank therebetween, and a punch for drawing the blank. The blank holder and the opposing die include respective blank holding surfaces in which beads, having at least a portion that varies in distance from a drawing profile, are formed. In a drawing method conducted using the apparatus, a blank holder is lowered to hold the blank between the blank holder and the opposing die, and then the blank holder is further lowered so that the held blank is drawn by the punch.
    Type: Grant
    Filed: July 22, 1996
    Date of Patent: December 30, 1997
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Naoki Yamanaka, Kazutoshi Tsuge