Patents by Inventor Shun Ohta

Shun Ohta 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).

  • Programmable controller and exclusive control communicating method therefor
    Patent number: 5774354
    Abstract: In the programmable controller and the exclusive control communicating method therefor according to the present invention, a program devices is connected to each of the bus-extended and distributed sections by an extension cable and an extension I/F units, and a plurality of connected program devices communicate with one CPU unit exclusively controlling each other in accordance with an exclusive control signal outputted from an exclusive control signal generating circuit.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: June 30, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Shun Ohta
  • Programmable controller and exclusive control communicating method therefor
    Patent number: 5712781
    Abstract: In the programmable controller and the exclusive control communicating method therefor according to the present invention, a program devices is connected to each of the bus-extended and distributed sections by an extension cable and an extension I/F units, and a plurality of connected program devices communicate with one CPU unit exclusively controlling each other in accordance with an exclusive control signal outputted from an exclusive control signal generating circuit.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: January 27, 1998
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Shun Ohta
  • Programmable controller and method of monitoring a sequence program thereof
    Patent number: 5463544
    Abstract: A programmable controller comprises a program apparatus and a CPU unit. The program apparatus displays, on a screen, a program of an arbitrary sequence step in a sequence program programmed in the CPU unit, to monitor a device condition of the sequence program displayed during execution of the CPU unit. The CPU unit transmits an arbitrary device having an index qualification and a condition of the arbitrary device to the program apparatus during execution of the programmed sequence program. Similarly, the CPU unit can transmit the arbitrary device and the condition thereof in accordance with a condition of an index specified by an operator.
    Type: Grant
    Filed: September 16, 1994
    Date of Patent: October 31, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Shun Ohta