Patents by Inventor Masaki Nobuhara

Masaki Nobuhara 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).

  • Electrodeposited reamer tool
    Patent number: 5178497
    Abstract: The present invention relates to an electrodeposited reamer tool (1) for use in precision bore processing.In this electroplated reamer tool (1), a work processing portion (3) in a reamer body is constituted by a finishing portion (4) having a cylindrical outer peripheral surface and a cutting portion (5) provided on the distal end side of the finishing portion (4) and having a tapered configuration, and abrasive grains (6) are electrodeposited on the outer peripheral surfaces of the finishing portion (4) and the cutting portion (5).In the electrodeposited reamer tool (1) is inserted into a prepared hole provided in a work, the prepared hole is enlarged by the cutting portion (5), and the inner surface of the bore is finished by the finishing portion (4).Accordingly, it is possible to form a precision bore of a predetermined inner diameter in a work without preprocessing the prepared hole with precision.
    Type: Grant
    Filed: April 26, 1990
    Date of Patent: January 12, 1993
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Hiroyuki Kitabayashi, Tadayuki Ishikawa, Hiroyuki Kuroda, Yoshihiko Nakakoji, Masaki Nobuhara