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).
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Patent number: 10557565Abstract: 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: GrantFiled: March 22, 2017Date of Patent: February 11, 2020Assignee: Azbil CorporationInventor: Takashi Nomiyama
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Patent number: 9971360Abstract: 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: GrantFiled: March 9, 2015Date of Patent: May 15, 2018Assignee: AZBIL CORPORATIONInventors: Takashi Nomiyama, Keisuke Narumi
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Patent number: 9804006Abstract: 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: GrantFiled: March 17, 2015Date of Patent: October 31, 2017Assignee: AZBIL CORPORATIONInventor: Takashi Nomiyama
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Publication number: 20170276258Abstract: 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: ApplicationFiled: March 22, 2017Publication date: September 28, 2017Applicant: Azbil CorporationInventor: Takashi NOMIYAMA
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Patent number: 9281723Abstract: 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: GrantFiled: July 3, 2012Date of Patent: March 8, 2016Assignee: KABUSHIKI KAISHA YASKAWA DENKIInventors: Kenji Watanabe, Toshiyuki Yamagishi, Takashi Nomiyama, Naotake Yoshizawa
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Patent number: 9261867Abstract: 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: GrantFiled: March 11, 2013Date of Patent: February 16, 2016Assignee: AZBIL CORPORATIONInventors: Toru Kashima, Satoshi Yuzawa, Takashi Nomiyama, Keisuke Narumi
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Publication number: 20150276438Abstract: 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: ApplicationFiled: March 17, 2015Publication date: October 1, 2015Applicant: AZBIL CORPORATIONInventor: Takashi NOMIYAMA
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Publication number: 20150261226Abstract: 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: ApplicationFiled: March 9, 2015Publication date: September 17, 2015Applicant: AZBIL CORPORATIONInventors: Takashi NOMIYAMA, Keisuke NARUMI
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Patent number: 8979064Abstract: 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: GrantFiled: June 7, 2013Date of Patent: March 17, 2015Assignee: Azbil CorporationInventors: Takashi Nomiyama, Masaki Namikawa
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Patent number: 8955821Abstract: 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: GrantFiled: March 26, 2012Date of Patent: February 17, 2015Assignee: Azbil CorporationInventors: Kouji Okuda, Takashi Nomiyama
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Patent number: 8925896Abstract: 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: GrantFiled: June 7, 2013Date of Patent: January 6, 2015Assignee: Azbil CorporationInventors: Takashi Nomiyama, Masaki Namikawa
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Publication number: 20140371243Abstract: 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: ApplicationFiled: June 13, 2014Publication date: December 18, 2014Applicant: Boehringer Ingelheim International GmbHInventors: Thomas KLEIN, Takashi NOMIYAMA, Yuichi TERAWAKI, Toshihiko YANASE
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Publication number: 20130327426Abstract: 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: ApplicationFiled: June 7, 2013Publication date: December 12, 2013Inventors: Takashi NOMIYAMA, Masaki NAMIKAWA
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Publication number: 20130327425Abstract: 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: ApplicationFiled: June 7, 2013Publication date: December 12, 2013Inventors: Takashi NOMIYAMA, Masaki NAMIKAWA
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Publication number: 20130238137Abstract: 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: ApplicationFiled: March 11, 2013Publication date: September 12, 2013Applicant: AZBIL CORPORATIONInventors: Toru KASHIMA, Satoshi YUZAWA, Takashi NOMIYAMA, Keisuke NARUMI
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Patent number: 8412471Abstract: 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: GrantFiled: January 14, 2009Date of Patent: April 2, 2013Assignee: Azbil CorporationInventors: Tetsuya Shimakata, Takashi Nomiyama
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Publication number: 20130009505Abstract: 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: ApplicationFiled: July 3, 2012Publication date: January 10, 2013Inventors: Kenji WATANABE, Toshiyuki YAMAGISHI, Takashi NOMIYAMA, Naotake YOSHIZAWA
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Publication number: 20120248356Abstract: 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: ApplicationFiled: March 26, 2012Publication date: October 4, 2012Applicant: YAMATAKE CORPORATIONInventors: Kouji Okuda, Takashi Nomiyama
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Publication number: 20100332156Abstract: 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: ApplicationFiled: January 14, 2009Publication date: December 30, 2010Applicant: YAMATAKE CORPORATIONInventors: Tetsuya Shimakata, Takashi Nomiyama
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Patent number: 6896407Abstract: 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: GrantFiled: November 1, 2002Date of Patent: May 24, 2005Assignee: Yamatake CorporationInventors: Takashi Nomiyama, Fumio Nagasaka, Shinichi Akano