Patents by Inventor Kenjiro Tabuchi

Kenjiro Tabuchi 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).

  • Patent number: 6968721
    Abstract: A method of manufacturing a turbine blade retainer using a material cutting device and a material bending device includes steps for suspending a bar stock material between a polyurethane shock absorber and a bore of a cutting jig support, moving the cutting punch downward to press the distal end of the bar stock material into the shock absorber and then cut the bar stock material to thereby generate a blank, clamping the blank between a bending punch and a receiving slide by pressing the bending punch against the receiving slide, bending the distal end of the blank against a chamfered section of a bending support in response to continued downward motion of the bending punch to thereby form a blade retainer precursor, and milling the blade retainer precursor to form the blade retainer. Corresponding devices for performing these steps are also described.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: November 29, 2005
    Assignee: Minebea Co., Ltd.
    Inventors: Kenjiro Tabuchi, Go Nabatame
  • Publication number: 20040040360
    Abstract: A method of manufacturing a turbine blade retainer using a material cutting device and a material bending device includes steps for suspending a bar stock material between a polyurethane shock absorber and a bore of a cutting jig support, moving the cutting punch downward to press the distal end of the bar stock material into the shock absorber and then cut the bar stock material to thereby generate a blank, clamping the blank between a bending punch and a receiving slide by pressing the bending punch against the receiving slide, bending the distal end of the blank against a chamfered section of a bending support in response to continued downward motion of the bending punch to thereby form a blade retainer precursor, and milling the blade retainer precursor to form the blade retainer. Corresponding devices for performing these steps are also described.
    Type: Application
    Filed: March 28, 2003
    Publication date: March 4, 2004
    Inventors: Kenjiro Tabuchi, Go Nabatame
  • Patent number: 6004414
    Abstract: A tire manufacturing method enabling a tire to maintain a high quality and a tire manufacturing machine of a simple construction and low cost by which improvement of productivity, saving of energy and reduction of maintenance man-hour are possible is provided.
    Type: Grant
    Filed: January 9, 1998
    Date of Patent: December 21, 1999
    Assignee: Bridgestone Corporation
    Inventors: Kenjiro Tabuchi, Satoru Honma, Hiroki Touya