Patents by Inventor Masao Masumoto

Masao Masumoto 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).

  • Apparatus for adjusting between crawler tracks of a working vehicle
    Patent number: 5638908
    Abstract: An apparatus for adjusting spacing between a pair of crawler tracks of a working vehicle such as a backhoe. This apparatus is capable of moving the crawler tracks independently of each other. When one of the crawler tracks is moved laterally outwardly of the vehicle, the other may be maintained in an inward position.
    Type: Grant
    Filed: March 27, 1995
    Date of Patent: June 17, 1997
    Assignee: Kubota Corporation
    Inventors: Masao Masumoto, Shizuo Shimoie
  • Power shovel
    Patent number: D312468
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: November 27, 1990
    Assignee: Kubota, Ltd.
    Inventors: Masao Masumoto, Yoshinobu Tabuchi, Kazuhiko Tsuji, Siro Sugiyama
  • Backhoe
    Patent number: D354497
    Type: Grant
    Filed: June 18, 1993
    Date of Patent: January 17, 1995
    Assignee: Kubota Corporation
    Inventors: Tadashi Kusunoki, Masao Masumoto
  • Backhoe
    Patent number: D375103
    Type: Grant
    Filed: July 17, 1995
    Date of Patent: October 29, 1996
    Assignee: Kubota Corporation
    Inventors: Masao Masumoto, Shizuo Shimoie