Patents by Inventor Takashi Nomiyama

Takashi Nomiyama 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: 10557565
    Abstract: A positioner according to the present invention includes: an electro-pneumatic converter that converts an input electric signal into a pneumatic signal and controls the valve opening of a regulating valve by driving an operational unit in accordance with the pneumatic signal; an operating-point searching unit that changes the electric signal by performing open loop control to search for an operating point indicating a target valve-opening value of the regulating valve when an output air pressure of the pneumatic signal starts to change; and a PST executing unit that executes a PST on the regulating valve by using the operating point found by the operating-point searching unit. The operating-point searching unit sets the operating point based on a value of the electric signal when the output air pressure matches a first reference value.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: February 11, 2020
    Assignee: Azbil Corporation
    Inventor: Takashi Nomiyama
  • Patent number: 9971360
    Abstract: In a positioner, a driving signal IM is set to IMMIN (the minimum), a valve opening position A after the valve has then settled is stored, the driving signal IM is set to IMMAX (the maximum), a valve opening position B after the valve has then settled is stored, and the valve opening positions up until the opening of the valve arrives at the valve opening position B from the valve opening position A are stored together with the elapsed times as time series position information J1, where, based on this stored time series position information J1, the time for the opening of the valve to traverse between two prescribed valve opening positions that are established in the interval between the valve opening position A and the valve opening position B is calculated as a first response time Tup.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: May 15, 2018
    Assignee: AZBIL CORPORATION
    Inventors: Takashi Nomiyama, Keisuke Narumi
  • Patent number: 9804006
    Abstract: An angle sensor temperature correcting device includes: a zero correcting factor storing portion that stores, as a reference temperature bridge midpoint potential difference offset and a bridge total resistance indicating value, a difference from an actual correct value, for a relative angle between a bridge circuit and a magnetic field, for the bridge midpoint potential difference, and a value indicating the total resistance of the bridge circuit, at a reference temperature, and stores, as a zero correcting factor, a ratio of the bridge midpoint potential difference offset and the bridge total resistance indicating value at the reference temperature; and a temperature correcting portion that performs temperature correction on angle information obtained from the bridge midpoint potential difference of the bridge circuit at a given time, based on a zero correcting factor stored in the zero correcting factor storing portion.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: October 31, 2017
    Assignee: AZBIL CORPORATION
    Inventor: Takashi Nomiyama
  • Publication number: 20170276258
    Abstract: A positioner according to the present invention includes: an electro-pneumatic converter that converts an input electric signal into a pneumatic signal and controls the valve opening of a regulating valve by driving an operational unit in accordance with the pneumatic signal; an operating-point searching unit that changes the electric signal by performing open loop control to search for an operating point indicating a target valve-opening value of the regulating valve when an output air pressure of the pneumatic signal starts to change; and a PST executing unit that executes a PST on the regulating valve by using the operating point found by the operating-point searching unit. The operating-point searching unit sets the operating point based on a value of the electric signal when the output air pressure matches a first reference value.
    Type: Application
    Filed: March 22, 2017
    Publication date: September 28, 2017
    Applicant: Azbil Corporation
    Inventor: Takashi NOMIYAMA
  • Patent number: 9281723
    Abstract: A rotary electric machine includes a stator; and a rotor including an iron core, which has a tubular connecting portion surrounding a shaft and 10 magnetic pole portions integrally formed with the connecting portion corresponding to a pole number, and a plurality of permanent magnets arranged between the magnetic pole portions. The iron core includes axially-penetrated magnet accommodating air gaps formed between the magnetic pole portions at the radial outer side of the connecting portion, and the permanent magnets are installed in the respective magnet accommodating air gaps such that a radial outer surface of each of the permanent magnets makes close contact with an inner surface of each of the magnet accommodating air gaps and such that a gap exists between a radial inner surface of each of the permanent magnets and the connecting portion.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: March 8, 2016
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kenji Watanabe, Toshiyuki Yamagishi, Takashi Nomiyama, Naotake Yoshizawa
  • Patent number: 9261867
    Abstract: A parameter acquiring device for acquiring parameters for a control valve has a controlling valve operating unit, a valve opening signal acquiring unit and a parameter calculator. The controlling valve operating unit operates a controlling valve in an opening direction and in a closing direction by changing, in a specific sequence, a control signal that controls an opening of a regulator valve. The valve opening signal acquiring unit acquires a signal indicating an actual opening of the regulator valve. The parameter calculator acquires data pairs of control signals and valve opening signals. The parameter calculator calculates a parameter of the control valve based on the data pairs that have been acquired.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: February 16, 2016
    Assignee: AZBIL CORPORATION
    Inventors: Toru Kashima, Satoshi Yuzawa, Takashi Nomiyama, Keisuke Narumi
  • Publication number: 20150276438
    Abstract: An angle sensor temperature correcting device includes: a zero correcting factor storing portion that stores, as a reference temperature bridge midpoint potential difference offset and a bridge total resistance indicating value, a difference from an actual correct value, for a relative angle between a bridge circuit and a magnetic field, for the bridge midpoint potential difference, and a value indicating the total resistance of the bridge circuit, at a reference temperature, and stores, as a zero correcting factor, a ratio of the bridge midpoint potential difference offset and the bridge total resistance indicating value at the reference temperature; and a temperature correcting portion that performs temperature correction on angle information obtained from the bridge midpoint potential difference of the bridge circuit at a given time, based on a zero correcting factor stored in the zero correcting factor storing portion.
    Type: Application
    Filed: March 17, 2015
    Publication date: October 1, 2015
    Applicant: AZBIL CORPORATION
    Inventor: Takashi NOMIYAMA
  • Publication number: 20150261226
    Abstract: In a positioner, a driving signal IM is set to IMMIN (the minimum), a valve opening position A after the valve has then settled is stored, the driving signal IM is set to IMMAX (the maximum), a valve opening position B after the valve has then settled is stored, and the valve opening positions up until the opening of the valve arrives at the valve opening position B from the valve opening position A are stored together with the elapsed times as time series position information J1, where, based on this stored time series position information J1, the time for the opening of the valve to traverse between two prescribed valve opening positions that are established in the interval between the valve opening position A and the valve opening position B is calculated as a first response time Tup.
    Type: Application
    Filed: March 9, 2015
    Publication date: September 17, 2015
    Applicant: AZBIL CORPORATION
    Inventors: Takashi NOMIYAMA, Keisuke NARUMI
  • Patent number: 8979064
    Abstract: A positioner includes a shift magnitude calculating portion that calculates a shift magnitude from the equilibrium state of a pilot relay, from an input air pressure that is inputted into the pilot relay and an output air pressure that is outputted from the pilot relay. A control calculating portion determines a control signal from an actual opening signal, an opening setting value, and the shift magnitude from the equilibrium state of the pilot relay that is calculated by the shift magnitude calculating portion, and outputs it to the electropneumatic converter.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: March 17, 2015
    Assignee: Azbil Corporation
    Inventors: Takashi Nomiyama, Masaki Namikawa
  • Patent number: 8955821
    Abstract: A power supply controlling function is provided in a controlling portion. The power supply controlling function defines a first pressure sensor, a second pressure sensor, a third pressure sensor, and an oscillation detecting sensor as sensors to which power may be supplied, and turns switches that are provided in the supply circuits of the power supply to the individual sensors to which power may be supplied ON and OFF so that a plurality of these sensors to which power may be supplied does not operate simultaneously.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: February 17, 2015
    Assignee: Azbil Corporation
    Inventors: Kouji Okuda, Takashi Nomiyama
  • Patent number: 8925896
    Abstract: A positioner includes a modeling portion that, having input/output characteristics that model an electropneumatic converter, inputs a control signal from a control calculating portion to calculate an estimated value for an input air pressure that is inputted from the electropneumatic converter into a pilot relay, and a shift magnitude calculating portion that calculates a shift magnitude from the equilibrium state of the pilot relay, from the estimated value for the input air pressure, which is calculated by the modeling portion, and the output air pressure that is outputted from the pilot relay. The control calculating portion determines the control signal from an actual opening signal, an opening setting signal, and the shift magnitude from the equilibrium state of the pilot relay, and outputs it to the electropneumatic converter.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: January 6, 2015
    Assignee: Azbil Corporation
    Inventors: Takashi Nomiyama, Masaki Namikawa
  • Publication number: 20140371243
    Abstract: The present invention relates to the use of a certain DPP-4 inhibitor along with angioplasty or stenting, and/or to its use for treating and/or preventing restenosis from angioplasty or stenting.
    Type: Application
    Filed: June 13, 2014
    Publication date: December 18, 2014
    Applicant: Boehringer Ingelheim International GmbH
    Inventors: Thomas KLEIN, Takashi NOMIYAMA, Yuichi TERAWAKI, Toshihiko YANASE
  • Publication number: 20130327426
    Abstract: A positioner includes a modeling portion that, having input/output characteristics that model an electropneumatic converter, inputs a control signal from a control calculating portion to calculate an estimated value for an input air pressure that is inputted from the electropneumatic converter into a pilot relay, and a shift magnitude calculating portion that calculates a shift magnitude from the equilibrium state of the pilot relay, from the estimated value for the input air pressure, which is calculated by the modeling portion, and the output air pressure that is outputted from the pilot relay. The control calculating portion determines the control signal from an actual opening signal, an opening setting signal, and the shift magnitude from the equilibrium state of the pilot relay, and outputs it to the electropneumatic converter.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 12, 2013
    Inventors: Takashi NOMIYAMA, Masaki NAMIKAWA
  • Publication number: 20130327425
    Abstract: A positioner includes a shift magnitude calculating portion that calculates a shift magnitude from the equilibrium state of a pilot relay, from an input air pressure that is inputted into the pilot relay and an output air pressure that is outputted from the pilot relay. A control calculating portion determines a control signal from an actual opening signal, an opening setting value, and the shift magnitude from the equilibrium state of the pilot relay that is calculated by the shift magnitude calculating portion, and outputs it to the electropneumatic converter.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 12, 2013
    Inventors: Takashi NOMIYAMA, Masaki NAMIKAWA
  • Publication number: 20130238137
    Abstract: A parameter acquiring device for acquiring parameters for a control valve has a controlling valve operating unit, a valve opening signal acquiring unit and a parameter calculator. The controlling valve operating unit operates a controlling valve in an opening direction and in a closing direction by changing, in a specific sequence, a control signal that controls an opening of a regulator valve. The valve opening signal acquiring unit acquires a signal indicating an actual opening of the regulator valve. The parameter calculator acquires data pairs of control signals and valve opening signals. The parameter calculator calculates a parameter of the control valve based on the data pairs that have been acquired.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 12, 2013
    Applicant: AZBIL CORPORATION
    Inventors: Toru KASHIMA, Satoshi YUZAWA, Takashi NOMIYAMA, Keisuke NARUMI
  • Patent number: 8412471
    Abstract: One A/D converter and the other A/D converter have a common power supply voltage and sample an A/D conversion value at short time intervals and at a long time intervals, respectively. Both the A/D converter and the A/D converter are set in a constant active state (continuous conversion mode). This allows the total consumption current combining the consumption current of the A/D converter and the consumption current of the A/D converter to be constant, so that the power supply voltage is stabilized and a stable A/D conversion value can be obtained from each of the A/D converters.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: April 2, 2013
    Assignee: Azbil Corporation
    Inventors: Tetsuya Shimakata, Takashi Nomiyama
  • Publication number: 20130009505
    Abstract: A rotary electric machine includes a stator; and a rotor including an iron core, which has a tubular connecting portion surrounding a shaft and 10 magnetic pole portions integrally formed with the connecting portion corresponding to a pole number, and a plurality of permanent magnets arranged between the magnetic pole portions. The iron core includes axially-penetrated magnet accommodating air gaps formed between the magnetic pole portions at the radial outer side of the connecting portion, and the permanent magnets are installed in the respective magnet accommodating air gaps such that a radial outer surface of each of the permanent magnets makes close contact with an inner surface of each of the magnet accommodating air gaps and such that a gap exists between a radial inner surface of each of the permanent magnets and the connecting portion.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Inventors: Kenji WATANABE, Toshiyuki YAMAGISHI, Takashi NOMIYAMA, Naotake YOSHIZAWA
  • Publication number: 20120248356
    Abstract: A power supply controlling function is provided in a controlling portion. The power supply controlling function defines a first pressure sensor, a second pressure sensor, a third pressure sensor, and an oscillation detecting sensor as sensors to which power may be supplied, and turns switches that are provided in the supply circuits of the power supply to the individual sensors to which power may be supplied ON and OFF so that a plurality of these sensors to which power may be supplied does not operate simultaneously.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 4, 2012
    Applicant: YAMATAKE CORPORATION
    Inventors: Kouji Okuda, Takashi Nomiyama
  • Publication number: 20100332156
    Abstract: One A/D converter and the other A/D converter have a common power supply voltage and sample an A/D conversion value at short time intervals and at a long time intervals, respectively. Both the A/D converter and the A/D converter are set in a constant active state (continuous conversion mode). This allows the total consumption current combining the consumption current of the A/D converter and the consumption current of the A/D converter to be constant, so that the power supply voltage is stabilized and a stable A/D conversion value can be obtained from each of the A/D converters.
    Type: Application
    Filed: January 14, 2009
    Publication date: December 30, 2010
    Applicant: YAMATAKE CORPORATION
    Inventors: Tetsuya Shimakata, Takashi Nomiyama
  • Patent number: 6896407
    Abstract: A temperature information detecting device for an angle sensor is provided for detecting only temperature-dependent components based on middle-point potentials when a constant current is supplied to a bridge circuit for an angle sensor, for acquiring a temperature of the angle sensor from the temperature-dependent components, for employing compensating information corresponding to the acquired temperature without separately providing any additional temperature sensor, and for making temperature compensation of the output of the temperature sensor in automatically controlling the valve opening of a flow control valve.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: May 24, 2005
    Assignee: Yamatake Corporation
    Inventors: Takashi Nomiyama, Fumio Nagasaka, Shinichi Akano