Patents by Inventor Tetsuaki Sugahara

Tetsuaki Sugahara 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).

  • Ink-jet head system
    Patent number: 7036916
    Abstract: An inkjet head system has an inkjet head and a printed board connected to the inkjet head. The inkjet head includes a cavity plate formed with a plurality of ink pressure chambers arranged adjacent to each other. A piezoelectric actuator is placed on the cavity plate. A plurality of driving electrodes is formed on the piezoelectric actuator at positions corresponding to respective ones of the plurality of ink pressure chambers. The printed board includes a plurality of electrode lands connected with respective ones of the plurality of driving electrodes to supply driving signals thereto. The electrode lands are connected with respective ones of the plurality of driving elements by means of magnetic force. Therefore, the printed board can be easily detached from the inkjet head by pulling it from the inkjet head against the magnetic force.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: May 2, 2006
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Atsuo Sakaida, Tetsuaki Sugahara
  • Ink-jet head system
    Publication number: 20040125177
    Abstract: An inkjet head system has an inkjet head and a printed board connected to the inkjet head. The inkjet head includes a cavity plate formed with a plurality of ink pressure chambers arranged adjacent to each other. A piezoelectric actuator is placed on the cavity plate. A plurality of driving electrodes is formed on the piezoelectric actuator at positions corresponding to respective ones of the plurality of ink pressure chambers. The printed board includes a plurality of electrode lands connected with respective ones of the plurality of driving electrodes to supply driving signals thereto. The electrode lands are connected with respective ones of the plurality of driving elements by means of magnetic force. Therefore, the printed board can be easily detached from the inkjet head by pulling it from the inkjet head against the magnetic force.
    Type: Application
    Filed: September 24, 2003
    Publication date: July 1, 2004
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Atsuo Sakaida, Tetsuaki Sugahara