Patents by Inventor Toru Nagakura

Toru Nagakura 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).

  • Cutting device for sheet metal drum
    Patent number: 6726547
    Abstract: A drum slicing apparatus is capable of highly accurately and efficiently slicing a drum made of a thin metal sheet which is relatively highly flexible. The drum slicing apparatus has a support shaft rotatable about its own axis, a cylindrical drum holder supported on the support shaft for holding the drum by pressing engagement with an inner circumferential surface of the drum over an entire length thereof, and a slicing device having slicing edges for slicing the drum into the metal rings by engaging and cutting into the drum at predetermined cutting positions thereon while the drum is being rotated by the support shaft through the drum holder.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: April 27, 2004
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yuji Narusaki, Yoshiharu Watabe, Takehisa Kimura, Tomotsugu Takahashi, Toru Nagakura, Yoriyuki Watanabe
  • Cutting device for sheet metal drum
    Publication number: 20030176154
    Abstract: A drum slicing apparatus is capable of highly accurately and efficiently slicing a drum made of a thin metal sheet which is relatively highly flexible. The drum slicing apparatus has a support shaft rotatable about its own axis, a cylindrical drum holder supported on the support shaft for holding the drum by pressing engagement with an inner circumferential surface of the drum over an entire length thereof, and a slicing device having slicing edges for slicing the drum into the metal rings by engaging and cutting into the drum at predetermined cutting positions thereon while the drum is being rotated by the support shaft through the drum holder.
    Type: Application
    Filed: May 2, 2003
    Publication date: September 18, 2003
    Inventors: Yuji Narusaki, Yoshiharu Watabe, Takehisa Kimura, Tomotsugu Takahashi, Toru Nagakura, Yoriyuki Watanabe