Patents by Inventor Mitsuteru Motomura

Mitsuteru Motomura 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).

  • Ground excavating apparatus
    Patent number: 4070772
    Abstract: Such a ground excavating apparatus that conducts excavation of a soft stratum by means of a bucket and employs an impact crusher for the excavation of such a hard stratum as a rock bed or the like is disclosed.Introduced in the present application is a ground excavator of such a category that comprises a housing, a bucket boom properly set in place in the said housing in a manner of being capable of traveling forward and rearward, a bucket properly fitted in place on the front end section of the said bucket boom in a manner of being capable of inclining, and an impact crushing mechanism well capable of traveling forward and rearward by virtue of a hydraulic jack housed in the said bucket boom, and employs the said bucket and the said impact crushing mechanism in an alternate manner to best suit the nature of the ground to be excavated.
    Type: Grant
    Filed: September 24, 1975
    Date of Patent: January 31, 1978
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Mitsuteru Motomura, Chiaki Kojima, Hiroshi Ohta, Akira Nemoto
  • Ground excavating apparatus
    Patent number: 4026604
    Abstract: Such a ground excavating apparatus that conducts excavation of a soft stratum by means of a bucket and employs an impact crusher for the excavation of such a hard stratum as a rock bed or the like is disclosed.Introduced in the present application is a ground excavator of such a category that comprises a housing, a bucket boom properly set in place in the said housing in a manner of being capable of traveling forward and rearward, a bucket properly fitted in place on the front end section of the said bucket boom in a manner of being capable of inclining, and an impact crushing mechanism well capable of traveling forward and rearward by virtue of a hydraulic jack housed in the said bucket boom, and employs the said bucket and the said impact crushing mechanism in an alternate manner to best suit the nature of the ground to be excavated.
    Type: Grant
    Filed: September 24, 1975
    Date of Patent: May 31, 1977
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Mitsuteru Motomura, Chiaki Kojima, Hiroshi Ohta, Akira Nemoto
  • Controlled output gear pump and motor
    Patent number: 3951575
    Abstract: A gear pump and motor having a plurality of pumps and motors, each of which have at least three gears interengaged with one another, seal members disposed adjacent to the gears, and control means for selectively controlling the movement of the seal members toward or away from the gears of the pump and motors so as to selectively actuate the pumps and motors so as to attain a desired output.
    Type: Grant
    Filed: July 10, 1973
    Date of Patent: April 20, 1976
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Mitsuteru Motomura, Masayuki Futamata, Yasuo Kitta