Patents Assigned to Yokogawa Electric Corporation
  • Patent number: 11575650
    Abstract: An information processing device includes a virtualizer configured to operate as a proxy of hardware on the hardware, at least one virtual machine configured to function as a part of a process control system on the virtualizer, an address duplication determiner configured to determine duplication of an address on an external network when the external network is connected to the hardware, and an address duplication manager configured to cut a connection between the virtual machine and the external network when the duplication of the address is detected.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: February 7, 2023
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Kento Tsukada, Masanobu Tsuchiya
  • Patent number: 11574090
    Abstract: In a device engineering method, data of a plant network hierarchy (PNH) and registered devices (RD) in a device management server are synchronized to a device simulation server (SS). In a simulation mode, at least one function of device management system is executed via communicating with simulated devices (SD), while the device management system being not communicatively coupled to any physical control station configured to control physical field devices in a real plant. Virtual parameters are introduced into the SD. For device configuration, simulation is made of configurable device parameters; non-configurable device parameters; and device status, with SD generated from DD files in the PNH for the RD in the FDCS. Parallel communications including sending communication requests from a CRH component to the SD in the PNH from the CRH component in the FDCS to the SD in the PNH are executed simultaneously.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: February 7, 2023
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: JingXiang Xu, Kim Fatt Ng, Wei Hong Weng
  • Publication number: 20230034693
    Abstract: An information processing device includes a controller and a display. The controller acquires a first prediction result that indicates information concerning a state of a plant that is predicted by a physical model, and acquires a second prediction result that indicates information concerning a state of the plant that is predicted by a machine learning model that is generated based on data concerning the plant. The display displays the first prediction result and the second prediction result.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 2, 2023
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Azusa Takenaka, Zhexing Wang, Kineo Mitsuishi, Tomohiro Sakita
  • Publication number: 20230033220
    Abstract: An information processing device includes a controller that: inputs information that is based on a raw material of a product that is produced at a plant to a physical model and acquires a first output result; inputs component information that is based on optical spectrum data that are obtained by spectroscopic sensing for the raw material and an output of the physical model to a machine learning model and acquires a second output result; and outputs information concerning a state of the plant based on the first output result and the second output result.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 2, 2023
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Azusa Takenaka, Zhexing Wang, Kineo Mitsuishi, Tomohiro Sakita
  • Publication number: 20230034851
    Abstract: An information processing device includes a controller that: acquires a first prediction result that indicates a state of a plant based on a physical model; acquires other prediction results that indicate a state of the plant, based on machine learning models that are generated based on data concerning the plant; and outputs information concerning a state of the plant based on the first prediction result and the other prediction results.
    Type: Application
    Filed: July 29, 2022
    Publication date: February 2, 2023
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Azusa Takenaka, Zhexing Wang, Kineo Mitsuishi, Tomohiro Sakita
  • Publication number: 20230031203
    Abstract: An optical fiber characteristics measurement system includes: an optical fiber characteristics measurement device including: an emission port configured to emit probe light; and an incidence and emission port connected to one end of a measurement target optical fiber and configured to emit pump light, stimulated Brillouin scattered light generated within the measurement target optical fiber being incident on the incidence and emission port; a first optical fiber having one end connected to the emission port and configured to guide the probe light to another end of the measurement target optical fiber; and an optical isolator provided between another end of the first optical fiber and the another end of the measurement target optical fiber, and configured to cause the probe light guided by the first optical fiber to be incident on the another end of the measurement target optical fiber.
    Type: Application
    Filed: July 13, 2022
    Publication date: February 2, 2023
    Applicant: Yokogawa Electric Corporation
    Inventor: Yoshihiro Kumagai
  • Patent number: 11568719
    Abstract: After an installation of an apparatus, although a state confirmation is necessary, if a display having a high display capability is mounted to the apparatus to facilitate checking, the apparatus becomes large. Further, although it is considered that a terminal such as a personal computer is connected to an apparatus to display state information, when the apparatus is installed in a high place or a narrow gap, the connection is difficult. An apparatus is provided which includes a storage unit that stores state information on a plurality of types of states, a switching unit that switches a to-be-output state from among the plurality of types of states in response to receiving a switching operation by a user, an identification information output unit that outputs a first indication for identifying a type of a to-be-output state, and a state information output unit that outputs state information on a to-be-output state.
    Type: Grant
    Filed: July 30, 2019
    Date of Patent: January 31, 2023
    Assignee: Yokogawa Electric Corporation
    Inventor: Koichi Taniguchi
  • Patent number: 11569735
    Abstract: A power supply system includes at least two power supply devices that supply a current to a load. Each of the at least two power supply devices includes a converter configured to generate a current that is to be supplied to the load, an FET that is connected in series between the converter and the load, a gate voltage monitoring circuit configured to monitor whether a gate voltage of the FET has fallen below a predetermined first reference voltage, and an alarm generation circuit configured to generate an alarm according to a result of monitoring by the gate voltage monitoring circuit.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: January 31, 2023
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Yuusuke Shimizu, Kei Fukuhara, Iwao Nakanishi
  • Patent number: 11562105
    Abstract: Method and system for engineering with sequence libraries are provided. A first set of engineering data is defined for a first engineering project to generate a first sequence library for the first engineering project, independently of one or more lower level engineering projects for configuring one or more field control systems. The sequence library assignment process is to assign the first sequence library to the one or more lower level engineering projects simultaneously to generate one or more first assigned sequence libraries for the one or more lower level engineering projects for configuring the one or more field control systems. The parallel configuration process is to perform a parallel configuration process which configures the first sequence library for the first engineering project, while assigning the first sequence library to another one or more lower level engineering projects.
    Type: Grant
    Filed: July 11, 2019
    Date of Patent: January 24, 2023
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Mark Anthony De Castro Cu-Unjieng, Isao Hirooka, Hideki Murata, Naing Oo Lin, Archie Sambitan Orido, Takeshi Mori, Efendi Supiman, Thin Sapal Yu, Janet Tria
  • Patent number: 11562309
    Abstract: An engineering assistant system 1 includes: an engineering server 10 that issues a work list including information related to work necessary for performing the engineering of a process control system 100; and an at least one engineering client 20 that grants work authority for each worker based on the work list issued by the engineering server 10 and makes it possible to perform work on a constituent apparatus that constitutes the process control system 100 within a range of granted work authority.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: January 24, 2023
    Assignee: Yokogawa Electric Corporation
    Inventors: Hiroshi Mori, Nobuaki Ema
  • Patent number: 11555782
    Abstract: A spectrometry device includes a switch and a converter. The switch acquires a first reception signal and a second reception signal that respectively include information relating to an optical spectrum and switches between outputting the first reception signal and outputting the second reception signal based on control by a controller. The converter converts the first reception signal or the second reception signal output from the switch into a digital signal.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: January 17, 2023
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventor: Masanori Okada
  • Patent number: 11556434
    Abstract: In a real-time communication processing system of the present disclosure, at least one computer transmits a notification to a management apparatus when a virtual machine on the computer has the possibility of experiencing unstable operation related to real-time communication processing. When a virtual processor is free, the management apparatus instructs the computer to allocate the virtual processor to the virtual machine that has the possibility of experiencing unstable operation. When a virtual processor is not free, the management apparatus instructs the computer to allocate a virtual processor, secured by live migration of a virtual machine capable of live migration, to the virtual machine that has the possibility of experiencing unstable operation.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: January 17, 2023
    Assignee: Yokogawa Electric Corporation
    Inventor: Masanobu Tsuchiya
  • Patent number: 11535682
    Abstract: Sulfate ester modified cellulose nanofibers having an average fiber diameter in the range of 1 nm to 500 nm, and having sulfate ester modified hydroxyl groups on surfaces of the cellulose nanofibers. A method of producing cellulose nanofibers that are nanosized, that have a high crystallinity degree, and that have large aspect ratios, the method being a chemical method that does not require any physical pulverization, that is energy-saving, and that can be performed under mild reaction conditions. A method of producing modified cellulose nanofibers including modifying the surfaces of the cellulose nanofibers through esterification or urethanization. A method of producing cellulose nanofibers includes impregnating cellulose with a fibrillation solution containing dimethylsulfoxide, at least one carboxylic acid anhydride selected from acetic anhydride and propionic anhydride, and sulfuric acid to fibrillate the cellulose.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: December 27, 2022
    Assignee: Yokogawa Electric Corporation
    Inventors: Lianzhen Lin, Masanori Hori, Ayako Maruta
  • Patent number: 11532311
    Abstract: Recently, there has been a demand for further improvement of accuracy of analysis. A system is provided that includes an acquisition unit that acquires call data which is a record of a call between a client and a contact center, a sound recognition unit that performs sound recognition on the call data by using a keyword registered in dictionary data, an analysis unit that performs analysis using a keyword included in a result of the sound recognition, and a registration unit that registers in the dictionary data, a keyword included in a product information database among a plurality of the keywords included in the result of the sound recognition, the product information database storing product information about each of a plurality of products.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: December 20, 2022
    Assignee: Yokogawa Electric Corporation
    Inventors: Hiroshi Tanoguchi, Junko Yamashita, Keita Miyamoto, Dan Hu
  • Publication number: 20220390729
    Abstract: A confocal scanner (21) according to the present disclosure includes a first pinhole array disk (211a), a second pinhole array disk (211b), a condensing element array disk (212) located between the first pinhole array disk (211a) and the second pinhole array disk (211b), a connecting shaft (213) connecting the first pinhole array disk (211a), the second pinhole array disk (211b), and the condensing element array disk (212), and a motor (214) configured, together with the connecting shaft (213), to rotate the first pinhole array disk (211a), the second pinhole array disk (211b), and the condensing element array disk (212). The first pinhole array disk (211a) is located at a first focal plane, the second pinhole array disk (211b) is located at a second focal plane.
    Type: Application
    Filed: May 18, 2022
    Publication date: December 8, 2022
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventor: Takayuki Kei
  • Publication number: 20220390728
    Abstract: A confocal scanner (21) according to the present disclosure includes a first pinhole array disk (211a), a second pinhole array disk (211b), a condensing element array disk (212) located between the first pinhole array disk (211a) and the second pinhole array disk (211b), a connecting shaft (213) connecting the first pinhole array disk (211a), the second pinhole array disk (211b), and the condensing element array disk (212), and a motor (214) configured, together with the connecting shaft (213), to rotate the first pinhole array disk (211a), the second pinhole array disk (211b), and the condensing element array disk (212). The first pinhole array disk (211a) is located at a first focal plane, the second pinhole array disk (211b) is located at a second focal plane, and a diameter of first pinholes and a diameter of second pinholes are different from each other.
    Type: Application
    Filed: May 18, 2022
    Publication date: December 8, 2022
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventor: Takayuki Kei
  • Patent number: 11520298
    Abstract: An operation monitoring terminal includes a viewer that obtains from an engineering terminal, a registration file in which information including names of one or more groups that are operation monitoring targets and names of controllers that belong to the groups is set, refers to the registration file to display the groups that are the operation monitoring targets, and obtains from a controller belonging to a group selected from among the displayed groups, forcing information including a forcing target that is being subjected to forcing to determine the forcing target that is being subjected to forcing and displays a name of the controller and a name of the forcing target as information about forcing.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: December 6, 2022
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventor: Mayumi Yoshinaga
  • Publication number: 20220377004
    Abstract: Provided is acquiring communication information via communication or directly from an engineering DB (corresponding to one example “database”) in which the communication information related to communication devices constituting a plant network is defined; storing the acquired communication information; calculating, based on the stored communication information, a total communication amount of each of the communication devices supposed in communication executed in corresponding one of the communication devices; estimating, based on the total communication amount, an actual communication amount of each of the communication devices according to an arbitrary estimation condition specified by a user; determining at least presence/absence of a communication device whose actual communication amount exceeds communication capability of the communication device; and outputting a determined determination result to the user.
    Type: Application
    Filed: May 2, 2022
    Publication date: November 24, 2022
    Applicant: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Hiroya Enomoto, Takeshi Hongo, Hiroaki Nakajima
  • Patent number: 11505924
    Abstract: The invention provides secure systems, methods and computer program products for monitoring fluid distribution within a fluid distribution network, and for validating received fluid distribution data, identifying unauthorized losses, and raising alerts in response to detection of unauthorized losses. The invention relies on a plurality of sensors disposed within the fluid distribution network, data received from said sensors, and validation and reconciliation of data based on a distributed ledger system, for detecting instances of unauthorized fluid loss.
    Type: Grant
    Filed: April 12, 2018
    Date of Patent: November 22, 2022
    Assignee: YOKOGAWA ELECTRIC CORPORATION
    Inventors: Subramanian Periaswamy, Naveen Kashyap
  • Patent number: 11506880
    Abstract: An optical illumination device (10) includes: a laser light source (1); microlens arrays (2, 3) through which light emitted from the laser light source (1) passes; a moving mechanism (5) that moves the microlens arrays (2, 3) without changing an optical length from the laser light source (1); and a Fourier lens (4) through which light passing through the microlens arrays (2, 3) passes.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: November 22, 2022
    Assignee: Yokogawa Electric Corporation
    Inventor: Takayuki Kei