Patents by Inventor Toshihiko MURAHASHI

Toshihiko MURAHASHI 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).

  • Publication number: 20230241740
    Abstract: A machining accuracy diagnosing device includes a diagnosing information acquiring, an opening time setting unit, a cutting time setting unit, and a machining accuracy influence amount predicting unit. The diagnosing information acquiring unit acquires at least one of a room temperature inside the plant, a set temperature of a temperature regulating device, an air temperature outside the plant, a wind speed outside the plant, an opening degree of the door or the shutter, and a machine body temperature. The opening time setting unit sets an opening time of the door or the shutter. The machining accuracy influence amount predicting unit predicts an influence amount of opening of the door or the shutter on the machining accuracy based on the acquired information for diagnosis, the set opening time of the door or the shutter, and a set scheduled machining start time and a set scheduled machining end time.
    Type: Application
    Filed: January 18, 2023
    Publication date: August 3, 2023
    Applicant: OKUMA CORPORATION
    Inventors: Yuji MIZOGUCHI, Takashi NORIHISA, Toshihiko MURAHASHI
  • Publication number: 20230236089
    Abstract: A machining accuracy diagnosing device includes a temperature regulation operating pattern setting unit, a cutting condition setting unit, a temperature information acquiring unit, and a machining accuracy influence amount predicting unit. The temperature regulation operating pattern setting unit sets an operating pattern of a temperature regulating unit. The cutting condition setting unit sets a scheduled machining start time and a scheduled machining end time. The temperature information acquiring unit acquires an influencing temperature of the temperature regulating unit on the machine body temperature and/or an air temperature outside the plant.
    Type: Application
    Filed: January 19, 2023
    Publication date: July 27, 2023
    Applicant: OKUMA CORPORATION
    Inventors: Yuji MIZOGUCHI, Takashi NORIHISA, Toshihiko MURAHASHI
  • Patent number: 9983564
    Abstract: A thermal displacement correcting apparatus includes a correction amount estimating device and a parameter automatic selecting device that, in a machine tool having two different sets of specifications that differ due to the presence/absence of a scale and different methods of measuring the lengths of a bed and a table, estimate a thermal displacement correction amount of the machine tool of each set of specifications. The two devices store a collection of parameters for an estimated thermal displacement calculation corresponding to each of the bed, the scale, the table, and a workpiece, as a database, and select the parameters belonging to the set of specifications from the database based on machine information according to each set of specifications, calculate estimated thermal displacements of the bed, the table, and the workpiece, or also the scale, according to the selected parameters, and combine the estimated thermal displacements.
    Type: Grant
    Filed: January 11, 2016
    Date of Patent: May 29, 2018
    Assignee: Okuma Corporation
    Inventors: Toshihiko Murahashi, Hironori Funaguchi
  • Publication number: 20160124420
    Abstract: A thermal displacement correcting apparatus includes a correction amount estimating device and a parameter automatic selecting device that, in a machine tool having two different sets of specifications that differ due to the presence/absence of a scale and different methods of measuring the lengths of a bed and a table, estimate a thermal displacement correction amount of the machine tool of each set of specifications. The two devices store a collection of parameters for an estimated thermal displacement calculation corresponding to each of the bed, the scale, the table, and a workpiece, as a database, and select the parameters belonging to the set of specifications from the database based on machine information according to each set of specifications, calculate estimated thermal displacements of the bed, the table, and the workpiece, or also the scale, according to the selected parameters, and combine the estimated thermal displacements.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Inventors: Toshihiko MURAHASHI, Hironori FUNAGUCHI
  • Patent number: 9266209
    Abstract: A thermal displacement correcting apparatus includes a correction amount estimating device and a parameter automatic selecting device that, in a machine tool having two different sets of specifications that differ due to the presence/absence of a scale and different methods of measuring the lengths of a bed and a table, estimate a thermal displacement correction amount of the machine tool of each set of specifications. The two devices store a collection of parameters for an estimated thermal displacement calculation corresponding to each of the bed, the scale, the table, and a workpiece, as a database, and select the parameters belonging to the set of specifications from the database based on machine information according to each set of specifications, calculate estimated thermal displacements of the bed, the table, and the workpiece, or also the scale, according to the selected parameters, and combine the estimated thermal displacements.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: February 23, 2016
    Assignee: Okuma Corporation
    Inventors: Toshihiko Murahashi, Hironori Funaguchi
  • Publication number: 20120165971
    Abstract: A thermal displacement correcting apparatus includes a correction amount estimating device and a parameter automatic selecting device that, in a machine tool having two different sets of specifications that differ due to the presence/absence of a scale and different methods of measuring the lengths of a bed and a table, estimate a thermal displacement correction amount of the machine tool of each set of specifications. The two devices store a collection of parameters for an estimated thermal displacement calculation corresponding to each of the bed, the scale, the table, and a workpiece, as a database, and select the parameters belonging to the set of specifications from the database based on machine information according to each set of specifications, calculate estimated thermal displacements of the bed, the table, and the workpiece, or also the scale, according to the selected parameters, and combine the estimated thermal displacements.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 28, 2012
    Applicant: Okuma Corporation
    Inventors: Toshihiko MURAHASHI, Hironori FUNAGUCHI