Patents by Inventor Masaru Tomobe

Masaru Tomobe 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).

  • Friction stir welding apparatus and method and processing apparatus and method
    Publication number: 20040173663
    Abstract: The invention provides a friction stir welding apparatus and method and a processing apparatus and method, which are not easily affected by deformations of a work being processed. The friction stir welding apparatus inserts a rotating tool into the work and moves the rotating tool relative to the work to join members of the work. The friction stir welding apparatus and method and the processing apparatus and method of the invention, the latter cutting or grinding the work with a rotating cutter or grindstone, comprises controlling a relative distance between the tool, cutter or grindstone and the work under the joining or processing operation or an insertion depth so that the load factor or electric current of a spindle motor for rotating the tool, cutter or grindstone is within a predetermined range, and a controller therefor.
    Type: Application
    Filed: March 15, 2004
    Publication date: September 9, 2004
    Inventors: Kazutaka Okamoto, Satoshi Hirano, Masayuki Doi, Hisanori Okamura, Masahisa Inagaki, Tomio Odakura, Masaru Tomobe
  • Friction stir welding apparatus and method and processing apparatus and method
    Patent number: 6729526
    Abstract: The invention provides a friction stir welding apparatus and method and a processing apparatus and method, which are not easily affected by deformations of a work being processed. The friction stir welding apparatus inserts a rotating tool into the work and moves the rotating tool relative to the work to join members of the work. The friction stir welding apparatus and method and the processing apparatus and method of the invention, the latter cutting or grinding the work with a rotating cutter or grindstone, comprises controlling a relative distance between the tool, cutter or grindstone and the work under the joining or processing operation or an insertion depth so that the load factor or electric current of a spindle motor for rotating the tool, cutter or grindstone is within a predetermined range, and a controller therefor.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: May 4, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Kazutaka Okamoto, Satoshi Hirano, Masayuki Doi, Hisanori Okamura, Masahisa Inagaki, Tomio Odakura, Masaru Tomobe
  • Friction stir welding apparatus and method and processing apparatus and method
    Publication number: 20030047590
    Abstract: The invention provides a friction stir welding apparatus and method and a processing apparatus and method, which are not easily affected by deformations of a work being processed. The friction stir welding apparatus inserts a rotating tool into the work and moves the rotating tool relative to the work to join members of the work. The friction stir welding apparatus and method and the processing apparatus and method of the invention, the latter cutting or grinding the work with a rotating cutter or grindstone, comprises controlling a relative distance between the tool, cutter or grindstone and the work under the joining or processing operation or an insertion depth so that the load factor or electric current of a spindle motor for rotating the tool, cutter or grindstone is within a predetermined range, and a controller therefor.
    Type: Application
    Filed: July 16, 2002
    Publication date: March 13, 2003
    Inventors: Kazutaka Okamoto, Satoshi Hirano, Masayuki Doi, Hisanori Okamura, Masahisa Inagaki, Tomio Odakura, Masaru Tomobe
  • Friction stir welding apparatus and method and processing apparatus and method
    Publication number: 20030047584
    Abstract: The invention provides a friction stir welding apparatus and method and a processing apparatus and method, which are not easily affected by deformations of a work being processed. The friction stir welding apparatus inserts a rotating tool into the work and moves the rotating tool relative to the work to join members of the work. The friction stir welding apparatus and method and the processing apparatus and method of the invention, the latter cutting or grinding the work with a rotating cutter or grindstone, comprises controlling a relative distance between the tool, cutter or grindstone and the work under the joining or processing operation or an insertion depth so that the load factor or electric current of a spindle motor for rotating the tool, cutter or grindstone is within a predetermined range, and a controller therefor.
    Type: Application
    Filed: March 19, 2002
    Publication date: March 13, 2003
    Inventors: Kazutaka Okamoto, Satoshi Hirano, Masayuki Doi, Hisanori Okamura, Masahisa Inagaki, Tomio Odakura, Masaru Tomobe