Patents by Inventor Akihiro Yanagita

Akihiro Yanagita 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: 6726773
    Abstract: A method is disclosed for providing a steady transition state for an integral pneumatic dispensing system that is related to a robot. The method dispenses a single material using a pneumatic dispensing system having a single output including first and second shotmeters having first and second meters, first and second encoders and first and second pressure transducers. The method includes the step of loading the first shotmeter with the material. Once loaded, a pressure is applied to the material. The material is then dispensed out of the first shotmeter by forcing the material through the single output. Once the material in the first shotmeter is dispensed to a predetermined volume, the method begins to transition the flow of material from the first shotmeter to the second shotmeter. The transition includes the control of the volume being dispensed and the pressure applied to the material.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: April 27, 2004
    Assignee: Fanuc Robotics North America, Inc.
    Inventors: Akihiro Yanagita, Douglas L. Potts, Raymond J. Guzowski
  • Patent number: 6540104
    Abstract: A method is disclosed for providing a steady transition state for an integral pneumatic dispensing system that is related to a robot. The method dispenses a single material using a pneumatic dispensing system having a single output including first and second shotmeters having first and second meters, first and second encoders and first and second pressure transducers. The method includes the step of loading the first shotmeter with the material. Once loaded, a pressure is applied to the material. The material is then dispensed out of the first shotmeter by forcing the material through the single output. Once the material in the first shotmeter is dispensed to a predetermined volume, the method begins to transition the flow of material from the first shotmeter to the second shotmeter. The transition includes the control of the volume being dispensed and the pressure applied to the material.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: April 1, 2003
    Assignee: Fanuc Robotics North America, Inc.
    Inventors: Akihiro Yanagita, Douglas L. Potts, Raymond J. Guzowski
  • Patent number: 6360143
    Abstract: A method of controlling a dispensing system, having a robot that moves along a motion segment and applies a material to a workpiece, automatically determines a backup distance for the robot after an error has occurred during the dispensing of a first portion of the material. The backup distance is based on an operational speed of the robot. The robot is relocated to a backup position based on this backup distance to ensure that the robot reaches the operational speed at least by a time that the robot reaches a re-application position. The re-application position is at or near where the application of the first portion of the material ended. Therefore, gaps, overlaps, and puddles in the material on the workpiece are prevented.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: March 19, 2002
    Assignee: Fanuc Robotics North America
    Inventor: Akihiro Yanagita
  • Patent number: 5170109
    Abstract: Disclosed is a method of controlling a robot, for restarting the robot by resupplying an electric power in the event of a power failure. When a power failure detection circuit detects that a voltage has dropped or has been cut off, the circuit notifies an operating method (OS) of this (S1) and the OS writes a power failure flag to a non-volatile memory and stops a task being performed (S2). The data of the task being performed is saved in the non-volatile memory. After the electric power has been resupplied (S10), the OS executes a power failure processing for itself, with reference to the power failure flag (S11), initializes hardware (S12), executes a power failure processing routine for each task (S13), and restarts the operation of the robot from the position at which the robot was stopped when the power failure occurred (S14).
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: December 8, 1992
    Assignee: Fanuc Ltd.
    Inventors: Akihiro Yanagita, Yoshiki Hashimoto, Hiroji Nishi