Patents by Inventor Tatsuo Onoyama

Tatsuo Onoyama 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: 10836035
    Abstract: A drive control device activates at least one of a plurality of operation regions and restricts operations by a robot such that the robot operates within the activated operation region. With a plurality of operation regions such as an operation region 1 and an operation region 2 being activated, when the drive control device predicts that the robot will be included in a range of any of the operation region 1 and the operation region 2, the drive control device does not cut off supply of electric power to a servo amplifier, whereas when the drive control device predicts that the robot will be included in a range of neither of the operation region 1 and the operation region 2, the drive control device cuts off supply of electric power to the servo amplifier.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: November 17, 2020
    Assignee: OKURA YUSOKI KABUSHIKI KAISHA
    Inventors: Hideki Sawada, Toshiyuki Sato, Tatsuo Onoyama, Ryoichi Okura, Mugen Kawazu
  • Publication number: 20200254631
    Abstract: An abnormal condition determination system includes a detection device which detects rotation of each rotation shaft of a robot and an abnormal condition determination device which detects an encoder abnormal condition based on an absolute signal and an incremental signal from the detection device. The abnormal condition determination device calculates an absolute angle of the rotation shaft based on an amount of variation in angle of rotation of the rotation shaft indicated by an incremental signal from an incremental encoder. The abnormal condition determination device determines the detection device as abnormal when a difference between the absolute angle of the rotation shaft calculated based on the incremental signal and the absolute angle of the rotation shaft indicated by the absolute signal from an absolute encoder is out of an allowable range.
    Type: Application
    Filed: November 12, 2015
    Publication date: August 13, 2020
    Inventors: Hideki Sawada, Toshiyuki Sato, Tatsuo Onoyama, Ryoichi Okura, Mugen Kawazu
  • Publication number: 20180297201
    Abstract: A drive control device activates at least one of a plurality of operation regions and restricts operations by a robot such that the robot operates within the activated operation region. With a plurality of operation regions such as an operation region 1 and an operation region 2 being activated, when the drive control device predicts that the robot will be included in a range of any of the operation region 1 and the operation region 2, the drive control device does not cut off supply of electric power to a servo amplifier, whereas when the drive control device predicts that the robot will be included in a range of neither of the operation region 1 and the operation region 2, the drive control device cuts off supply of electric power to the servo amplifier.
    Type: Application
    Filed: October 7, 2015
    Publication date: October 18, 2018
    Inventors: Hideki Sawada, Toshiyuki Sato, Tatsuo Onoyama, Ryoichi Okura, Mugen Kawazu
  • Patent number: 6378694
    Abstract: A rotation detection device is provided in a motor roller of a conveying apparatus to detect changes in the rotation speed of the motor roller. When an object is moved from an upstream location of a conveyance path to the motor roller having the rotation detection device, the rotation detection device detects the presence of the object by measuring the slight variation in rotation speed of the motor roller. A control unit is provided to monitor the output signals from a plurality of rotation detection devices, arranged along the conveyance path. The control device independently adjusts the conveyance speeds of a plurality of independent conveyance portions along the conveyance path based upon these output signals. This system allows conveyance of a plurality of objects along the conveyance while avoiding one object from running into another object due to, for example, a delay at a particular point along the conveyance path.
    Type: Grant
    Filed: May 5, 2000
    Date of Patent: April 30, 2002
    Assignee: Okura Yusoki Kabushi Kaisha
    Inventors: Tatsuo Onoyama, Toshiyuki Sato, Tadahiro Hayashida