Patents by Inventor Yasushi Nogawa

Yasushi Nogawa 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).

  • Helical tooth broach
    Patent number: 6527484
    Abstract: A helical gear tooth broach having an elongate body having a series of axially aligned and spaced teeth disposed thereon. The direction of tooth spaces or traces of the teeth in a longitudinally extending helical alignment and the direction of the gullets of the teeth in a side by side circumferentially extending helical arrangement are both oriented at a right-upward or a left-upward helix angle in common with each other.
    Type: Grant
    Filed: July 11, 2001
    Date of Patent: March 4, 2003
    Assignees: Nachi-Fujikoshi Corp., Aisin AW Co., Ltd.
    Inventors: Kazuyuki Nakamura, Yasushi Nogawa, Hidetaka Nakae, Katsuhiko Nishimura
  • Helical tooth broach
    Publication number: 20020015622
    Abstract: A helical gear tooth broach is provided which does not require to clamp strongly the work to be broached by a special clamping device, and which does not perform an intermittent cutting action against the work. A gear tooth broach is provided having an elongate body having a series of axially aligned and spaced teeth disposed thereon. The direction of tooth spaces or traces of the teeth in a longitudinally extending helical alignment and the direction of the gullets of the teeth in a general side by side circumferentially extending helical arrangement are both oriented to the same hand of helix angle.
    Type: Application
    Filed: July 11, 2001
    Publication date: February 7, 2002
    Inventors: Kazuyuki Nakamura, Yasushi Nogawa, Hidetaka Nakae, Katsuhiko Nishimura