Patents by Inventor Masaji Takeuchi

Masaji Takeuchi 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).

  • Crawler frame mounting structure for construction machinery
    Patent number: 7458633
    Abstract: A mounting structure for a center frame and crawler frames of a base carrier of a construction machine, which can increase durability without complicating the structure is provided. A crawler frame mounting structure for a construction machine includes a center frame configured to rotatably support an upper rotating body, fastening portions for fastening the center frame to crawler frames on right and left sides by front and rear leg portions, and end plates having widths wider than the width between attachment positions of a pair of vertical plates. The end plates including tie bolt holes formed on both right and left ends are welded.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: December 2, 2008
    Assignee: Komatsu Ltd.
    Inventors: Masaji Takeuchi, Tadashi Ekawa
  • Crawler Frame Mounting Structure For Construction Machinery
    Publication number: 20070290526
    Abstract: A mounting structure for a center frame and crawler frames of a base carrier of a construction machine, which can increase durability without complicating the structure is provided. A crawler frame mounting structure for a construction machine includes a center frame configured to rotatably support an upper rotating body, fastening portions for fastening the center frame to crawler frames on right and left sides by front and rear leg portions, and end plates having widths wider than the width between attachment positions of a pair of vertical plates. The end plates including tie bolt holes formed on both right and left ends are welded.
    Type: Application
    Filed: August 29, 2005
    Publication date: December 20, 2007
    Applicant: Komatsu Ltd.
    Inventors: Masaji Takeuchi, Tadashi Ekawa