Patents by Inventor Hideaki MIYAJIMA

Hideaki MIYAJIMA 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).

  • Drilling apparatus and drilling method
    Patent number: 9669472
    Abstract: A drilling apparatus includes: a drill rotatable about a center axis and capable of advancing and retracting along the axis; and a pressing unit for pressing a work in an advancing direction of the drill. The drilling apparatus advances the drill while rotating the drill about the center axis to form a hole in the work, in a state in which the work is pressed by the pressing unit. A pressing force applied on the work by the pressing unit is set to a predetermined pressing force based on machining reaction applied to the drill from the work during drilling and the pressing force causing deformation of the work in the advancing direction of the drill. The predetermined pressing force can suppress deformation of the work and displacement of the drill due to the machining reaction. The machining reaction and the pressing force are calculated beforehand in a drilling test.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: June 6, 2017
    Assignee: FUJI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hideaki Miyajima, Takashi Murakami, Hideharu Takahashi, Tatsuo Nakahata
  • DRILLING APPARATUS AND DRILLING METHOD
    Publication number: 20140348603
    Abstract: A drilling apparatus includes: a drill rotatable about a center axis and capable of advancing and retracting along the axis; and a pressing unit for pressing a work in an advancing direction of the drill. The drilling apparatus advances the drill while rotating the drill about the center axis to form a hole in the work, in a state in which the work is pressed by the pressing unit. A pressing force applied on the work by the pressing unit is set to a predetermined pressing force based on machining reaction applied to the drill from the work during drilling and the pressing force causing deformation of the work in the advancing direction of the drill. The predetermined pressing force can suppress deformation of the work and displacement of the drill due to the machining reaction. The machining reaction and the pressing force are calculated beforehand in a drilling test.
    Type: Application
    Filed: May 23, 2014
    Publication date: November 27, 2014
    Applicant: Fuji Jukogyo Kabushiki Kaisha
    Inventors: Hideaki MIYAJIMA, Takashi MURAKAMI, Hideharu TAKAHASHI, Tatsuo NAKAHATA