Patents by Inventor Fujio Tateda

Fujio Tateda 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).

  • Scribe device
    Patent number: 6804889
    Abstract: A holder 20 is rotatably connected to a body 10. A scribe tool 30 is attached to one end of the holder 20. A plate spring 16 is fixed to the body 10, and a receiving plate 26 is fixed to the holder 20. A piezo-actuator 40 is interposed between the plate spring 16 and the receiving plate 26. One end of a plate spring 50 having a small spring constant is fixed to the holder 20. The body 10 is provided with an adjustment screw 60. When a lower end part 65 of the adjustment screw 60 is protruded, the lower end part 65 presses the plate spring 50 for flexure, thereby generating a resilient force to the plate spring 50. By this, a rotational force is given to the holder 20 and thus a pressing load directing toward a workpiece is given to the scribe tool 30.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: October 19, 2004
    Assignees: Beldex Corporation, THK Co., Ltd.
    Inventors: Hirokazu Ishikawa, Toshio Hayashi, Fujio Tateda, Jun Sakamoto, Hideo Oka
  • Scribe device
    Publication number: 20030177650
    Abstract: A holder 20 is rotatably connected to a body 10. A scribe tool 30 is attached to one end of the holder 20. A plate spring 16 is fixed to the body 10, and a receiving plate 26 is fixed to the holder 20. A piezo-actuator 40 is interposed between the plate spring 16 and the receiving plate 26. One end of a plate spring 50 having a small spring constant is fixed to the holder 20. The body 10 is provided with an adjustment screw 60. When a lower end part 65 of the adjustment screw 60 is protruded, the lower end part 65 presses the plate spring 50 for flexure, thereby generating a resilient force to the plate spring 50. By this, a rotational force is given to the holder 20 and thus a pressing load directing toward a workpiece is given to the scribe tool 30.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 25, 2003
    Applicants: BELDEX CORPORATION, THK CO., LTD.,
    Inventors: Hirokazu Ishikawa, Toshio Hayashi, Fujio Tateda, Jun Sakamoto, Hideo Oka