Patents Assigned to Azbil Corporation
  • Patent number: 12153166
    Abstract: To calculate a probability of an optical sensor's irregular discharge, a light detection system includes an optical sensor, an application voltage generating circuit that applies a drive pulse voltage to the optical sensor, a discharge determining portion that detects the optical sensor's discharge, a discharge probability calculating portion that calculates a discharge probability in a first state in which light from an additional light source having a known light quantity is incident on the optical sensor or the additional light source is turned off, and in a second state in which the additional light source's turning-on/turning-off state is different from the first state and the drive pulse voltage's pulse width is the same as the first state, a sensitivity parameter storing portion that stores the optical sensor's sensitivity parameters, and another discharge probability calculating portion that calculates a discharge probability of the optical sensor's irregular discharge.
    Type: Grant
    Filed: February 5, 2021
    Date of Patent: November 26, 2024
    Assignee: AZBIL CORPORATION
    Inventors: Shun Onuma, Raita Mori
  • Publication number: 20240070535
    Abstract: A cause estimation system includes a training data acquisition unit that acquires training data in which sensing data is used as an explanatory variable and a flame failure detection cause is used as an objective variable, the sensing data being sensed by a combustion system during a predetermined time period preceding a time when a flame failure is detected based on a flame voltage indicating a main burner's flame state. The cause estimation system further includes a machine learning unit that performs machine learning based on the training data acquired and that constructs an estimation model in which a learning result is reflected, and a cause estimation unit that inputs sensing data sensed by the combustion system during a predetermined time period preceding a new flame failure detection timing into the estimation model and that acquires a new flame failure detection cause output from the estimation model.
    Type: Application
    Filed: June 30, 2023
    Publication date: February 29, 2024
    Applicant: Azbil Corporation
    Inventors: Daisuke OKUMURA, Shigeki ISHII
  • Publication number: 20240045781
    Abstract: An information processing apparatus estimates a posterior distribution of a parameter estimate using an identification data set for system identification, performs an evaluation based on a variance of the posterior distribution of the parameter estimate, and an output tracking accuracy evaluation for a case where the parameter estimate is used, and determines, based on evaluation results from an evaluation unit, whether an extraction section for the identification data set is appropriate for use in system identification.
    Type: Application
    Filed: July 7, 2023
    Publication date: February 8, 2024
    Applicant: AZBIL CORPORATION
    Inventor: Satoshi YAMAUCHI
  • Publication number: 20240037423
    Abstract: An information processing apparatus includes an index value calculation module and a parameter determination module. The index value calculation module calculates values of preset indexes for each of adjustment parameter sets to calculate regression coefficients which are used to derive a predicted value from past data. The parameter determination module selects an appropriate adjustment parameter set based on the index values calculated for each of the adjustment parameter sets and index values of neighborhood adjustment parameter sets with respect to the interested each adjustment parameter set.
    Type: Application
    Filed: July 7, 2023
    Publication date: February 1, 2024
    Applicant: AZBIL CORPORATION
    Inventor: Sei NAGASHIMA
  • Publication number: 20240035658
    Abstract: To detect a sign of a flame failure that cannot be detected by monitoring a flame voltage and a flame current, a flame monitoring device is provided that includes an information acquisition unit that sequentially acquires a flame level indicating frequency of discharge of a flame detector caused by a flame of a main burner, and a flame level monitoring unit that monitors the flame level sequentially acquired by the information acquisition unit. The flame level monitoring unit detects a sign of a flame failure of the flame by detecting an occurrence of a specific period during which a state in which the flame level is less than a predetermined threshold value continues for a length of time equal to or more than a predetermined period and less than a flame response period.
    Type: Application
    Filed: June 29, 2023
    Publication date: February 1, 2024
    Applicant: Azbil Corporation
    Inventors: Shigeki ISHII, Takeshi NISHIYAMA, Daisuke OKUMURA, Kayo SUZUKI
  • Publication number: 20240033874
    Abstract: The cutting tool inspection apparatus includes a data collection unit, a training data generation unit, and an inspection data generation unit. The data collection unit acquires waveform data of current for one batch supplied to a motor that drives a cutting tool of a machine tool. During generation of training data to be compared with inspection data of the cutting tool, the training data generation unit infers a time range corresponding to a specific process of the machine tool, based on characteristics of the waveform data, and clips waveform data of the time range as the training data. The inspection data generation unit clips, as the inspection data, waveform data at a time position identical to a time position of the time range inferred by the training data generation unit, from the waveform data acquired by the data collection unit during inspection of the cutting tool.
    Type: Application
    Filed: July 7, 2023
    Publication date: February 1, 2024
    Applicant: AZBIL CORPORATION
    Inventors: Hiroshi ISHIYAMA, Kenichi YAMAGATA, Yoshinori MONAKA
  • Publication number: 20230393086
    Abstract: A user is allowed to appropriately recognize a malfunction in a combustion device by a combustion monitoring device, which includes an information acquisition unit that acquires a plurality of sets each including an amount of fuel supplied to a main burner of a combustion device and an average value and a variation degree of flame levels when the amount of fuel is supplied to the main burner. The combustion monitoring device further includes information processing unit that executes a process of displaying, on a display, a graph indicating a relation between the amount of fuel and the average value of the flame levels, and a graph indicating a relation between the amount of fuel and the variation degree of the flame levels, based on the plurality of sets acquired by the information acquisition unit.
    Type: Application
    Filed: May 13, 2023
    Publication date: December 7, 2023
    Applicant: Azbil Corporation
    Inventors: Shigeki ISHII, Takeshi NISHIYAMA, Daisuke OKUMURA, Kenichi YAMAGATA
  • Publication number: 20230334978
    Abstract: A closed-space sensor system that enables stable operation in a closed space is provided. The closed-space sensor system includes: a power transmitter of an electromagnetic wave irradiator 440-emitting an electromagnetic wave; and a plurality of sensors, each of which includes an antenna and is driven by converting the electromagnetic wave received via the antenna into electric power. Each of the plurality of sensors may further include a power storage unit and each of the plurality of sensors may start to be driven when a power storage amount in the power storage unit reaches a drive start threshold value that is common to the plurality of sensors. The power transmitter of the electromagnetic wave irradiator and the plurality of sensors may be arranged in a closed space.
    Type: Application
    Filed: September 15, 2021
    Publication date: October 19, 2023
    Applicant: Azbil Corporation
    Inventor: Yoshiaki YAMAGISHI
  • Patent number: 11768120
    Abstract: An improved diaphragm vacuum gauge including a sensor chip that includes a first electrode provided on a base and a second electrode provided on a diaphragm so as to face the first electrode, the diaphragm and the base being disposed with a gap therebetween, and in which a distance between the first electrode and the second electrode changes in accordance with displacement of the diaphragm caused by pressure of a measurement target medium. The diaphragm vacuum gauge further includes an operational amplifier that converts a current output from the first electrode to a voltage and amplifies the voltage, and a coaxial cable that connects the first electrode and the operational amplifier with each other. Further, the first electrode is connected to a virtual ground of the operational amplifier by a core wire of the coaxial cable.
    Type: Grant
    Filed: May 13, 2022
    Date of Patent: September 26, 2023
    Assignee: AZBIL CORPORATION
    Inventors: Yasuhide Yoshikawa, Keisuke Obara, Jun Ichihara, Kimihiro Sato
  • Patent number: 11740151
    Abstract: An improved diaphragm vacuum gauge includes a pressure receiving unit having an electrical property that changes in accordance with displacement of a diaphragm caused by pressure of a measurement target medium; a heater that heats the pressure receiving unit; a temperature sensor that measures a temperature of the pressure receiving unit; a pressure measurement unit that converts a change in the electrical property of the pressure receiving unit to a pressure measurement value; a storage unit that stores a plurality of heating temperature settings; a heating temperature setting unit that selects one heating temperature setting from among the plurality of heating temperature settings in accordance with a digital input signal that is externally input; and a controller that controls power supply to the heater based on the temperature measured by the temperature sensor and the heating temperature setting selected by the heating temperature setting unit.
    Type: Grant
    Filed: May 9, 2022
    Date of Patent: August 29, 2023
    Assignee: AZBIL CORPORATION
    Inventors: Yasuhide Yoshikawa, Keisuke Obara, Jun Ichihara, Kimihiro Sato
  • Publication number: 20230235880
    Abstract: To grasp a state of a combustion apparatus based on a flame state of a burner, a discharge number measurement unit measures the number of discharges of a flame sensor per unit time. A light emission information generation unit generates, as light emission information, information obtained based on a value obtained by dividing a total (accumulation) of the number of discharges per unit time measured by the discharge number measurement unit by a total measurement time. A determination unit determines the state of the combustion apparatus to be inspected based on the light emission information generated by the light emission information generation unit as described above.
    Type: Application
    Filed: December 15, 2022
    Publication date: July 27, 2023
    Applicant: Azbil Corporation
    Inventors: Shigeki ISHII, Kayo SUZUKI, Kenichi YAMAGATA
  • Publication number: 20230235883
    Abstract: To grasp a state of a combustion apparatus based on a flame state of a burner, a discharge number measurement unit measures the number of discharges of a flame sensor per unit time, and a light emission information generation unit generates, as light emission information, information obtained based on a value obtained by dividing a total (accumulation) of the number of discharges per unit time measured by the discharge number measurement unit by a total measurement time, and a display unit displays the light emission information generated by the light emission information generation unit. Since the light emission information corresponds to a combustion amount, a change in a combustion state is capable of being grasped more finely by confirming a change in the light emission information displayed on the display unit, and a fine abnormality in a combustion apparatus is capable of being detected.
    Type: Application
    Filed: December 15, 2022
    Publication date: July 27, 2023
    Applicant: Azbil Corporation
    Inventors: Shigeki ISHII, Daisuke OKUMURA, Takeshi NISHIYAMA
  • Patent number: 11703416
    Abstract: A valve maintenance assistance device includes: a valve ID storing portion configured to store IDs of an ON-OFF valve which may be a candidate for maintenance; an opening acquiring portion configured to acquire opening measurement data from an opening sensor provided on the ON-OFF valve; a pressure acquiring portion configured to acquire pressure measurement data on operating device air supplied to an operating device of the ON-OFF valve; a storing portion configured to store the opening measurement data and the pressure measurement data; and a diagnosis index calculating portion configured to calculate a dead zone time from when an operating device air pressure is changed until an opening degree of the ON-OFF valve is changed as a diagnosis index based on the pressure measurement data and the opening measurement data; and a diagnosis index presenting portion configured to present a numerical value of the diagnosis index calculated by the diagnosis index calculating portion.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: July 18, 2023
    Assignee: AZBIL CORPORATION
    Inventors: Masato Tanaka, Fumiaki Yamasaki
  • Patent number: 11668411
    Abstract: A valve abnormality detecting device includes an opening acquiring portion to acquire a valve opening value; a pressure acquiring portion to acquire a pressure value of operating device air of an operating device for a valve; a stability-time detecting portion configured to detect a stable-opening state in which the valve opening value acquired by the opening acquiring portion 1 is substantially constant; a frictional force detecting portion configured to detect a difference between a maximum pressure value and a minimum pressure value of the operating device air in the stable-opening state as an index value indicating a frictional force at a sliding portion of the valve; and an abnormality determining portion configured to determine that an abnormality may have occurred in the valve in a case where a frequency of occurrence of reduction in which the index value falls below a specified value is an abnormal frequency.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: June 6, 2023
    Assignee: AZBIL CORPORATION
    Inventors: Masato Tanaka, Fumiaki Yamasaki
  • Patent number: 11630017
    Abstract: To provide a pressure sensor housing that is less likely to cause temperature distribution inside a pressure sensor when the pressure sensor is disposed inside a heater block, a pressure sensor housing includes a hollow cylindrical member extending along a predetermined axis core. A pressure sensor element that detects the pressure of a fluid is accommodated inside the cylindrical member. The entire circumference of a side surface thereof is surrounded by an air layer in the first posture in which an axis core of a space is aligned with the predetermined axis core with the hollow member disposed in the space. The side surface is in contact with a wall surface defining the space at a plurality of points at the same time in a second posture, which is at least one of postures in which the predetermined axis core is eccentric with the axis core of the space.
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: April 18, 2023
    Assignee: AZBIL CORPORATION
    Inventors: Takayoshi Kawazu, Raita Mori
  • Publication number: 20230104222
    Abstract: A mass flow controller includes a display unit; an operation unit; a basic functional section that realizes a basic function as the mass flow controller; a display control unit that causes the display unit to display a screen in an orientation corresponding to an instruction on an orientation from an operator; a layout-orientation setting unit that sets the vertical direction of the function layout of the operation unit to match the vertical direction of display by the display unit; and an orientation-instruction acquiring unit that acquires an instruction to specify an orientation of display by the display unit or an orientation of the function layout of the operation unit.
    Type: Application
    Filed: September 30, 2022
    Publication date: April 6, 2023
    Applicant: AZBIL CORPORATION
    Inventors: Wataru HASEBE, Kei SUZUKI, Shinsuke MATSUNAGA
  • Patent number: 11609139
    Abstract: The present disclosure enables measurement with satisfactory sensitivity in a low pressure range, and thus accurate measurement in a wider pressure range, by providing a pressure sensor that includes a diaphragm layer and a pressure receiving region formed in the diaphragm layer. In addition, the pressure sensor includes a first piezostrictive element, a second piezostrictive element, a third piezostrictive element, and a fourth piezostrictive element. In addition, the pressure sensor includes a first magnetostrictive element, a second magnetostrictive element, a third magnetostrictive element, and a fourth magnetostrictive element.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: March 21, 2023
    Assignee: AZBIL CORPORATION
    Inventors: Tomohisa Tokuda, Kouji Yuuki, Tatsuo Tanaka
  • Patent number: 11573142
    Abstract: A pressure sensor includes a diaphragm of a thin plate shape, the diaphragm forming part of a wall surface of a pressure chamber into and out from which a measurement target fluid flows. Multiple recesses are formed in the diaphragm on a side in contact with the measurement target fluid, and an interval between adjacent two of the multiple recesses is 10 ?m or less.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: February 7, 2023
    Assignee: AZBIL CORPORATION
    Inventors: Yusuke Niimura, Takuya Ishihara, Masaru Soeda, Masashi Sekine
  • Patent number: D1007352
    Type: Grant
    Filed: March 29, 2021
    Date of Patent: December 12, 2023
    Assignee: AZBIL CORPORATION
    Inventors: Raita Mori, Mayuka Sakai, Takayoshi Kawazu, Satoshi Kamiya, Mitsuhiko Nagata, Yasuhide Yoshikawa, Keisuke Obara
  • Patent number: D1047725
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: October 22, 2024
    Assignee: AZBIL CORPORATION
    Inventor: Raita Mori