Patents by Inventor Atsushi Iwahori

Atsushi Iwahori 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).

  • Method of finishing inner circumferential surface, and reamer
    Patent number: 6568883
    Abstract: A reamer includes: (a) an axially-distal-end small-diameter portion; (b) a guide portion which is axially adjacent to the small-diameter portion; (c) at least one flute which is formed in an outer circumferential surface of the reamer and which extends from the axially distal end of the reamer toward the axially distal end of the reamer; and (d) at least one land surface which is circumferentially adjacent to the flute. The land has a cutting blade portion formed therein in the axially-distal-end small-diameter portion. A first radial distance from an axis of the reamer to a radically outer end of the cutting blade portion is larger than a second radial distance from the axis to the land surface in the axially-distal-end small-diameter portion. The first radial distance is smaller than a third radial distance from the axis to the land surface in the guide portion.
    Type: Grant
    Filed: October 4, 2000
    Date of Patent: May 27, 2003
    Assignees: Fuji Seiko Limited, Toyota Jidosha Kabushiki Kaisha
    Inventors: Akio Fukui, Atsushi Iwahori, Tetsuro Nakanose, Kunitoshi Miyazaki, Motoshi Nakamura