Patents by Inventor Tashiro Takeda

Tashiro Takeda 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).

  • Automatic control device for an earth working equipment
    Patent number: 4282933
    Abstract: An automatic control device for an earth working equipment is directed to remove influence of acceleration on an inclinometer mounted on a vehicle body and thereby to effect an accurate blade control. An acceleration compensation arithmatic circuit receives outputs of a pair of inclinometer and removes an acceleration component by performing integration twice. This circuit is also designed to remove an integration error. Further, according to the invention, a Doppler radar system and an engine speed/throttle opening system are employed for detection of overload applied to the blade so that one of the detection systems which is most suitable for an actual work can be selected. Furthermore, the device includes both blade height controllers and tilt controllers and performs the two control operations most effectively.
    Type: Grant
    Filed: June 7, 1979
    Date of Patent: August 11, 1981
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Takashi Suganami, Tashiro Takeda, Tetsuya Nakayama, Koh Shimizu, Teruo Manseki
  • Automatic control systems for the working tool of a civil machine
    Patent number: 4157118
    Abstract: In a civil machine comprising a working tool provided on a vehicle with a travelling mechanism and a drive therefor, an automatic control system comprises a stroke detector for detecting the amount of stroke of a lifting cylinder operating to move the working tool up and down, an inclination angle detector for detecting the inclination angle of the vehicle, an arithmetic unit for obtaining data representative of the height of the working tool from the detection signals of the two detectors, and a control for operating the lifting cylinder by using the data to control the position of the working tool with high accuracy.
    Type: Grant
    Filed: August 29, 1977
    Date of Patent: June 5, 1979
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Takashi Suganami, Teruo Manzeki, Tashiro Takeda, Tetsuya Nakayama, Koh Shimizu, Keishiro Kurihara, Tohru Fukumura, Naomi Hatogai
  • Automatic control system for earth-moving equipment
    Patent number: 4053018
    Abstract: The cutting angle or cutting depth of the blade of an earth-moving equipment such as a bulldozer is adjusted by a hydraulic pressure cylinder and the supply of pressurized liquid to and from the hydraulic pressure cylinder is controlled in accordance with the running speed of the bulldozer. In addition, the rate at which the cutting depth of the blade of the earth-moving equipment is adjusted is inversely proportional to the speed of the earth-moving equipment.
    Type: Grant
    Filed: January 30, 1976
    Date of Patent: October 11, 1977
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventor: Tashiro Takeda
  • Automatic control system for earth-moving equipment
    Patent number: 3957121
    Abstract: The cutting angle or cutting depth of the blade of an earth-moving equipment such as a bulldozer is adjusted by a hydraulic pressure cylinder and the supply of pressurized liquid to and from the hydraulic pressure cylinder is controlled in accordance with the running speed of the bulldozer.
    Type: Grant
    Filed: May 22, 1974
    Date of Patent: May 18, 1976
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventor: Tashiro Takeda