Patents by Inventor Kazuhiko Masuo

Kazuhiko Masuo 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).

  • Rolling die and a method of making a rod with a ball portion
    Patent number: 7278286
    Abstract: A rolling die is provided for forming a rod member with a ball portion. The rolling die includes a first die member and a second die member facing the first die member. Each of the first die member and the second die member has a process surface. The process surface has a start forming portion having a process tooth configured to bite the rod member and an arc surface portion proximate the process tooth, an intermediate forming portion having the process tooth and a curved surface proximate the process tooth, the curved surfaced being configured to press the rod member to form an arched shape, and a finish forming portion having the process tooth and a hemispheric groove configured to press the rod member into the arched shape to form the ball portion.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: October 9, 2007
    Assignee: Kabushikikaisha Sanmei Seisakusho
    Inventors: Naoshige Taniguchi, Yoshio Nonaka, Norishige Hayashi, Kazuhiko Masuo
  • Rolling die and a method of making a rod with a ball portion
    Publication number: 20070022795
    Abstract: A rolling die is provided for forming a rod member with a ball portion. The rolling die includes a first die member and a second die member facing the first die member. Each of the first die member and the second die member has a process surface. The process surface has a start forming portion having a process tooth configured to bite the rod member and an arc surface portion proximate the process tooth, an intermediate forming portion having the process tooth and a curved surface proximate the process tooth, the curved surfaced being configured to press the rod member to form an arched shape, and a finish forming portion having the process tooth and a hemispheric groove configured to press the rod member into the arched shape to form the ball portion.
    Type: Application
    Filed: July 25, 2006
    Publication date: February 1, 2007
    Inventors: Naoshige Taniguchi, Yoshio Nonaka, Norishige Hayashi, Kazuhiko Masuo
  • Rolling die
    Publication number: 20050217345
    Abstract: A rolling die is provided. The rolling die includes a bite portion having bite processing teeth at a bite starting point for a workpiece, and a finishing portion having finishing processing teeth. The bite processing teeth at the starting point in the bite portion have lower tooth height than the finishing processing teeth in the finishing portion. The bite processing teeth have a larger tooth tip angle and a larger trough angle than the finishing processing teeth.
    Type: Application
    Filed: March 4, 2005
    Publication date: October 6, 2005
    Inventors: Naoshige Taniguchi, Yoshio Nonaka, Norishige Hayashi, Kazuhiko Masuo