Patents by Inventor Tadashi Oi

Tadashi Oi 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: 9529042
    Abstract: A technique capable of estimating an error point in a logic diagram appropriately. A logic diagram display device includes: a signal line correctness/incorrectness determining unit that determines for each test whether each signal line in the logic diagram is correct or incorrect based on a signal line status value of each signal line and a test table; and a signal line correctness/incorrectness result summarizing unit that calculates a correctness/incorrectness result summarized value of each signal line based on a result of determination about the correctness or incorrectness of each signal line. The logic diagram display device further includes: an error signal line estimating unit that estimates an error in each signal line based on the correctness/incorrectness result summarized value of each signal line; and a display that displays each signal line in the logic diagram in a display style responsive to the error in each signal line.
    Type: Grant
    Filed: July 12, 2013
    Date of Patent: December 27, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsunobu Yoshinaga, Tadashi Oi, Shinichiro Tsudaka, Masayo Nakagawa
  • Patent number: 9164647
    Abstract: A graphical user interface device includes an operation procedure information database, a display element information database, an operation determination section, a display element selection section, and an integrated procedure and display-element screen preparation section. Procedure information and a display item to be operated by an operator are registered in the operation procedure information database. The procedure information is text information forming an operation manual. The operation determination section determines a current operation step based on information given from an actual plant. The integrated procedure and display-element screen preparation section prepares a layout of an operation screen allowing the procedure information and the display item of the current operation step to be simultaneously displayed on a single screen of the input/output equipment.
    Type: Grant
    Filed: June 15, 2011
    Date of Patent: October 20, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Ueno, Tadashi Oi, Kazuyuki Mori, Akira Kobashi
  • Publication number: 20150177322
    Abstract: A technique capable of estimating an error point in a logic diagram appropriately. A logic diagram display device includes: a signal line correctness/incorrectness determining unit that determines for each test whether each signal line in the logic diagram is correct or incorrect based on a signal line status value of each signal line and a test table; and a signal line correctness/incorrectness result summarizing unit that calculates a correctness/incorrectness result summarized value of each signal line based on a result of determination about the correctness or incorrectness of each signal line. The logic diagram display device further includes: an error signal line estimating unit that estimates an error in each signal line based on the correctness/incorrectness result summarized value of each signal line; and a display that displays each signal line in the logic diagram in a display style responsive to the error in each signal line.
    Type: Application
    Filed: July 12, 2013
    Publication date: June 25, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventors: Mitsunobu Yoshinaga, Tadashi Oi, Shinichiro Tsudaka, Masayo Nakagawa
  • Patent number: 9031672
    Abstract: A logic diagram processing device has a logic diagram relocating unit which relocates operation elements while maintaining control logics equivalently so that the operation elements as compared overlap in the case where a plurality of designated logic diagrams are overlapped, and a logic diagram overlapping unit which overlaps the plurality of designated logic diagrams in which the operation elements are relocated by the logic diagram relocating unit. The logic diagram processing device also includes a display unit which displays the plurality of designated logic diagrams overlapped by the logic diagram overlapping unit in a predetermined display method by which a common part or the difference of the operation elements can be discriminated, and a display control unit which switches the predetermined display method to display in the display unit in accordance with an instruction from the outside.
    Type: Grant
    Filed: February 28, 2013
    Date of Patent: May 12, 2015
    Assignee: Mitsubishi Electric Corporation
    Inventors: Mitsunobu Yoshinaga, Tadashi Oi, Shinichiro Tsudaka, Masayo Nakagawa
  • Patent number: 8698616
    Abstract: A monitor control system includes a focused information database and a report determination part. The focused information database is configured to store focused information that is information associating a focused item focused by each operator with the operator with respect to actual plant information. The report determination part outputs report determination information independently for each operator based on the actual plant information and the focused information. The determination information indicates a measured value, an alert, and a set value that are coincident with the focused items focused by a certain operator and additionally that is determined to need to be reported.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: April 15, 2014
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Ueno, Tadashi Oi, Kazuyuki Mori, Akira Kobashi
  • Publication number: 20130253667
    Abstract: A logic diagram processing device has a logic diagram relocating unit which relocates operation elements while maintaining control logics equivalently so that the operation elements as compared overlap in the case where a plurality of designated logic diagrams are overlapped, and a logic diagram overlapping unit which overlaps the plurality of designated logic diagrams in which the operation elements are relocated by the logic diagram relocating unit. The logic diagram processing device also includes a display unit which displays the plurality of designated logic diagrams overlapped by the logic diagram overlapping unit in a predetermined display method by which a common part or the difference of the operation elements can be discriminated, and a display control unit which switches the predetermined display method to display in the display unit in accordance with an instruction from the outside.
    Type: Application
    Filed: February 28, 2013
    Publication date: September 26, 2013
    Inventors: Mitsunobu YOSHINAGA, Tadashi Oi, Shinichiro Tsudaka, Masayo Nakagawa
  • Patent number: 8381117
    Abstract: In a large-scale plant such as a power plant, a graphical user interface device displays a target data display screen without increasing a load of searching a screen or a load of grasping a screen transition link. An operation model-creating device reads operation manual data for operation estimation and operation history data from an operation manual managing device and an operation history managing device to create a number of pieces of manual procedure template data for each accident type. An operation predicting device selects the operation procedure template data having same conditions of immediately preceding operation history data obtained from the plant monitoring and control device to predict the next operation estimated to be performed by an operator from the selected operation procedure template data. The plant monitoring and control device displays a system recommended operation button on a monitoring screen thereof based on data of the predicted results.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: February 19, 2013
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yohei Ueno, Tadashi Oi, Motohiko Kawagishi
  • Publication number: 20120161957
    Abstract: A monitor control system includes a focused information database and a report determination part. The focused information database is configured to store focused information that is information associating a focused item focused by each operator with the operator with respect to actual plant information. The report determination part outputs report determination information independently for each operator based on the actual plant information and the focused information. The determination information indicates a measured value, an alert, and a set value that are coincident with the focused items focused by a certain operator and additionally that is determined to need to be reported.
    Type: Application
    Filed: December 20, 2011
    Publication date: June 28, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yohei UENO, Tadashi Oi, Kazuyuki Mori, Akira Kobashi
  • Publication number: 20120060091
    Abstract: A graphical user interface device includes an operation procedure information database, a display element information database, an operation determination section, a display element selection section, and an integrated procedure and display-element screen preparation section. Procedure information and a display item to be operated by an operator are registered in the operation procedure information database. The procedure information is text information forming an operation manual. The operation determination section determines a current operation step based on information given from an actual plant. The integrated procedure and display-element screen preparation section prepares a layout of an operation screen allowing the procedure information and the display item of the current operation step to be simultaneously displayed on a single screen of the input/output equipment.
    Type: Application
    Filed: June 15, 2011
    Publication date: March 8, 2012
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yohei UENO, Tadashi Oi, Kazuyuki Mori, Akira Kobashi
  • Publication number: 20110035693
    Abstract: In a large-scale plant such as a power plant, a graphical user interface device displays a target data display screen without increasing a load of searching a screen or a load of grasping a screen transition link. An operation model-creating device reads operation manual data for operation estimation and operation history data from an operation manual managing device and an operation history managing device to create a number of pieces of manual procedure template data for each accident type. An operation predicting device selects the operation procedure template data having same conditions of immediately preceding operation history data obtained from the plant monitoring and control device to predict the next operation estimated to be performed by an operator from the selected operation procedure template data. The plant monitoring and control device displays a system recommended operation button on a monitoring screen thereof based on data of the predicted results.
    Type: Application
    Filed: April 9, 2009
    Publication date: February 10, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Yohei Ueno, Tadashi Oi, Motohiko Kawagishi