Patents by Inventor Ryota Akai

Ryota Akai 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: 12199822
    Abstract: According to the present invention, when there is a change in a network configuration, timers of a changed network configuration are synchronized with a timer having high accuracy among the timers. This control system has a network configuration in which one or more control devices each for controlling a target can be communicably connected to a network, and each of the one or more control devices has: a timer for managing time with accuracy; a communicator for transmitting a control command to a target corresponding to said control device on the basis of the time managed by the timer; and a timer synchronizer that, when the network configuration is changed, time-synchronizes, among timers of each control device of a changed network configuration, timers with another timer having higher accuracy than the timers.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: January 14, 2025
    Assignee: OMRON Corporation
    Inventors: Mitsuhiro Yoneda, Taiga Niimi, Ryota Akai, Nobuyuki Sakatani, Shigenori Sawada
  • Patent number: 12166850
    Abstract: The present invention decides a reference timer for synchronizing time in consideration of an indicator which indicates a length of a transmission path. A timer decision means for deciding a reference timer out of timers having a plurality of transfer apparatuses acquires, for each of the plurality of transfer apparatuses, a path indicator which indicates a length of a path on a network through which data passes from the transfer apparatus to an end apparatus, and decides a reference timer out of timers of one or more transfer apparatuses having the path indicator which indicates that a path to the end apparatus has a predetermined length out of the plurality of transfer apparatuses.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: December 10, 2024
    Assignee: OMRON Corporation
    Inventors: Taiga Niimi, Mitsuhiro Yoneda, Ryota Akai, Nobuyuki Sakatani, Shigenori Sawada
  • Patent number: 12153393
    Abstract: A control system includes plural control devices connected to a network, each of the control devices including a program storage, an operation module, and an arbitration module. The program storage stores a control program including a command to calculate and update a control instruction that is a value related to control of a control target. The operation module operates the control program of the program storage of the control device. The arbitration module disposes plural control programs including a command to calculate and update an identical control instruction in another one of the plural control devices, and arbitrates an operation time between the plural control programs such that updatings of the identical control instruction do not conflict with each other in the plural control programs.
    Type: Grant
    Filed: March 10, 2020
    Date of Patent: November 26, 2024
    Assignee: OMRON CORPORATION
    Inventors: Taiga Niimi, Mitsuhiro Yoneda, Ryota Akai, Nobuyuki Sakatani, Shigenori Sawada
  • Patent number: 11811547
    Abstract: A control system, apparatus, and method are provided. In the control system, plural apparatuses in time synchronization with one another are connected to a network, and the network transfers a frame periodically exchanged by the apparatuses. The apparatuses include a control device and an apparatus controlled by the control device. Each apparatus in the control system is connected over the network, to a first apparatus that transmits a frame that arrives at each of the apparatuses and a second apparatus that receives a frame transmitted from each of the apparatuses. Each apparatus includes information on a frame transfer path and transfer timing based on a synchronous time. When a frame does not arrive at defined time through the transfer path and when a condition associated with a cycle is satisfied, one or more of the apparatuses is configured to transmit a resend request through the transfer path.
    Type: Grant
    Filed: February 18, 2020
    Date of Patent: November 7, 2023
    Assignee: OMRON CORPORATION
    Inventors: Mitsuhiro Yoneda, Nobuyuki Sakatani, Ryota Akai, Taiga Niimi, Shigenori Sawada
  • Publication number: 20220357715
    Abstract: A control system includes plural control devices connected to a network, each of the control devices including a program storage, an operation module, and an arbitration module. The program storage stores a control program including a command to calculate and update a control instruction that is a value related to control of a control target. The operation module operates the control program of the program storage of the control device. The arbitration module disposes plural control programs including a command to calculate and update an identical control instruction in another one of the plural control devices, and arbitrates an operation time between the plural control programs such that updatings of the identical control instruction do not conflict with each other in the plural control programs.
    Type: Application
    Filed: March 10, 2020
    Publication date: November 10, 2022
    Applicant: OMRON Corporation
    Inventors: Taiga NIIMI, Mitsuhiro YONEDA, Ryota AKAI, Nobuyuki SAKATANI, Shigenori SAWADA
  • Publication number: 20220286267
    Abstract: The present invention decides a reference timer for synchronizing time in consideration of an indicator which indicates a length of a transmission path. A timer decision means for deciding a reference timer out of timers having a plurality of transfer apparatuses acquires, for each of the plurality of transfer apparatuses, a path indicator which indicates a length of a path on a network through which data passes from the transfer apparatus to an end apparatus, and decides a reference timer out of timers of one or more transfer apparatuses having the path indicator which indicates that a path to the end apparatus has a predetermined length out of the plurality of transfer apparatuses.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 8, 2022
    Applicant: OMRON Corporation
    Inventors: Taiga NIIMI, Mitsuhiro YONEDA, Ryota AKAI, Nobuyuki SAKATANI, Shigenori SAWADA
  • Publication number: 20220244697
    Abstract: A control system includes a control target and plural devices, and the control target and the devices are connected to a network. The control system includes a program storage provided in each device storing a control program that calculates control data using data exchanged with the control target, an execution module and a disposition module. The execution module is included in each device and causes a processor to execute programs including a disposed control program. The disposition module disposes control programs in one or more of the devices. The disposition module determines a device in which the control program is disposed from among the plural devices based on a communication delay time between the devices and information about a resource usable for execution of the control program of each device for each control program.
    Type: Application
    Filed: March 10, 2020
    Publication date: August 4, 2022
    Applicant: OMRON CORPORATION
    Inventors: Ryota AKAI, Mitsuhiro YONEDA, Taiga NIlMI, Nobuyuki SAKATANI, Shigenori SAWADA
  • Publication number: 20220247632
    Abstract: According to the present invention, when there is a change in a network configuration, timers of a changed network configuration are synchronized with a timer having high accuracy among the timers. This control system has a network configuration in which one or more control devices each for controlling a target can be communicably connected to a network, and each of the one or more control devices has: a timer for managing time with accuracy; a communicator for transmitting a control command to a target corresponding to said control device on the basis of the time managed by the timer; and a timer synchronizer that, when the network configuration is changed, time-synchronizes, among timers of each control device of a changed network configuration, timers with another timer having higher accuracy than the timers.
    Type: Application
    Filed: March 10, 2020
    Publication date: August 4, 2022
    Applicant: OMRON Corporation
    Inventors: Mitsuhiro YONEDA, Taiga NIIMI, Ryota AKAI, Nobuyuki SAKATANI, Shigenori SAWADA
  • Publication number: 20220173922
    Abstract: A control system, apparatus, and method are provided. In the control system, plural apparatuses in time synchronization with one another are connected to a network, and the network transfers a frame periodically exchanged by the apparatuses. The apparatuses include a control device and an apparatus controlled by the control device. Each apparatus in the control system is connected over the network, to a first apparatus that transmits a frame that arrives at each of the apparatuses and a second apparatus that receives a frame transmitted from each of the apparatuses. Each apparatus includes information on a frame transfer path and transfer timing based on a synchronous time. When a frame does not arrive at defined time through the transfer path and when a condition associated with a cycle is satisfied, one or more of the apparatuses is configured to transmit a resend request through the transfer path.
    Type: Application
    Filed: February 18, 2020
    Publication date: June 2, 2022
    Applicant: OMRON CORPORATION
    Inventors: Mitsuhiro YONEDA, Nobuyuki SAKATANI, Ryota AKAI, Taiga NIIMI, Shigenori SAWADA
  • Publication number: 20220147022
    Abstract: A control system includes one or more control devices, and an information processing device. The information processing device and the one or more control devices are communicatively connected and time-synchronized with each other. The information processing device includes a processor configured to perform control calculation processing of calculating control data in accordance with control calculation based on data received from each of the one or more control devices. Each of the control devices includes a controller configured to perform input/output processing of transferring incoming data from a field device to the information processing device and outputting the control data received from the information processing device to the field device, and the control calculation processing and the input/output processing are performed within a period of time based on the time synchronization and shared between each of the control devices and the information processing device.
    Type: Application
    Filed: February 18, 2020
    Publication date: May 12, 2022
    Applicant: OMRON CORPORATION
    Inventors: Mitsuhiro YONEDA, Nobuyuki SAKATANI, Ryota AKAI, Taiga NIIMI, Shigenori SAWADA
  • Patent number: 10222245
    Abstract: A controller switches a measurement unit from a non-measurement state to a measurement state to start measurement processing of the measurement target physical amount when a trigger condition having a lowest variation level for a steady state is satisfied in plural trigger conditions set according to a trigger physical amount detected by a trigger detector, and the controller interrupts currently-performed measurement processing to start measurement processing corresponding to a trigger condition having a higher variation level when the trigger condition having the variation level for the steady state higher than that of the trigger condition corresponding to the currently-performed measurement processing is satisfied during performance of the measurement processing.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: March 5, 2019
    Assignee: OMRON Corporation
    Inventors: Hiroshi Sameshima, Yasuhiro Kawabata, Tomohiro Ozaki, Ryota Akai, Teruki Hasegawa
  • Patent number: 10142912
    Abstract: A sink node forming a sensor network system with one or more sensor nodes includes a communication time period allocation means for allocating, to a target sensor node, a communication time period for measurement information transmission by the target sensor node, to not overlap a communication time period for measurement information transmission by a node related to a wireless communication environment between the target sensor node and sink node, concerning measurement information transmission by a sensor target sensor node other than the target sensor node among the one or more sensor nodes. The communication time period allocation means adjusts a communication time period allocated for subsequent measurement information to be transmitted by the target sensor node, based on a predetermined wireless communication parameter related to the wireless communication environment between the target sensor node and sink node, concerning measurement information transmission by the target sensor node.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: November 27, 2018
    Assignee: OMRON Corporation
    Inventors: Yuki Inoue, Hiroshi Sameshima, Ryota Akai, Tomohiro Ozaki
  • Publication number: 20180022830
    Abstract: An object of the present invention is to provide a polydimethylsiloxane substrate to which a peptide having an affinity for polydimethylsiloxane (PDMS) is bound; a method for immobilizing a target protein on a polydimethylsiloxane substrate; a peptide having an affinity for PDMS; a polynucleotide encoding a peptide having an affinity for PDMS; and a vector using thereof. A polydimethylsiloxane substrate to which a peptide having an affinity for polydimethylsiloxane is bound, the peptide comprising the following peptide (1a) or (1b), or a fragment thereof: (1a) a peptide comprising an amino acid sequence represented by at least one member selected from the group consisting of SEQ ID NOs: 1 to 9; and (1b) a peptide comprising the amino acid sequence of (1a) in which one or more amino acids are deleted, substituted, and/or added, the peptide having an affinity for polydimethylsiloxane.
    Type: Application
    Filed: February 12, 2016
    Publication date: January 25, 2018
    Inventors: Yoichi KUMADA, Ryoko OTSUKI, Ryota AKAI, Junko KATAYAMA, Kazutaka MATOBA
  • Publication number: 20170359767
    Abstract: A sink node forming a sensor network system with one or more sensor nodes includes a communication time period allocation means for allocating, to a target sensor node, a communication time period for measurement information transmission by the target sensor node, to not overlap a communication time period for measurement information transmission by a node related to a wireless communication environment between the target sensor node and sink node, concerning measurement information transmission by a sensor target sensor node other than the target sensor node among the one or more sensor nodes. The communication time period allocation means adjusts a communication time period allocated for subsequent measurement information to be transmitted by the target sensor node, based on a predetermined wireless communication parameter related to the wireless communication environment between the target sensor node and sink node, concerning measurement information transmission by the target sensor node.
    Type: Application
    Filed: January 26, 2016
    Publication date: December 14, 2017
    Applicant: OMRON Corporation
    Inventors: Yuki INOUE, Hiroshi SAMESHIMA, Ryota AKAI, Tomohiro OZAKI
  • Patent number: 9792253
    Abstract: A sensor device has a difference calculation unit that calculates the difference between a predetermined threshold and a current measured value measured by a sensor unit that measures a measurement subject, a change amount recording unit that records the maximum amount of change of the measured value with respect to elapsed time on the basis of a plurality of measured value history records obtained by measuring the measurement subject, and a minimum time calculation unit that calculates the minimum arrival time that is the minimum time for the measurement subject to arrive at the predetermined threshold from the current measured value on the basis of the calculated difference and the recorded maximum amount of change.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: October 17, 2017
    Assignee: OMRON Corporation
    Inventors: Soji Ohmae, Masahiro Ikumo, Akane Nakashima, Ryota Akai, Akira Nakajima
  • Patent number: 9506956
    Abstract: A detection apparatus that detects a state of power has a first current transformer that measures a first current on a side of a first power line with respect to a connecting point between the first power line extending from a commercial power supply and a second power line extending from a power generation means that supplies power having the same frequency as the commercial power supply, a second current transformer that measures a second current on a side of the second power line with respect to the connecting point, a first current direction detector that detects a direction of the first current, a second current direction detector that detects a direction of the second current, and an exclusive OR calculator that calculates an exclusive OR between a detected value of the direction of the first current and a detected value of the direction of the second current.
    Type: Grant
    Filed: October 23, 2012
    Date of Patent: November 29, 2016
    Assignee: OMRON Corporation
    Inventors: Hiroshi Imai, Ryota Akai, Chen Chen, Yasukazu Ohno
  • Publication number: 20160041014
    Abstract: A controller switches a measurement unit from a non-measurement state to a measurement state to start measurement processing of the measurement target physical amount when a trigger condition having a lowest variation level for a steady state is satisfied in plural trigger conditions set according to a trigger physical amount detected by a trigger detector, and the controller interrupts currently-performed measurement processing to start measurement processing corresponding to a trigger condition having a higher variation level when the trigger condition having the variation level for the steady state higher than that of the trigger condition corresponding to the currently-performed measurement processing is satisfied during performance of the measurement processing.
    Type: Application
    Filed: February 4, 2014
    Publication date: February 11, 2016
    Applicant: OMRON Corporation
    Inventors: Hiroshi Sameshima, Yasuhiro Kawabata, Tomohiro Ozaki, Ryota Akai, Teruki Hasegawa
  • Patent number: 9251031
    Abstract: A data processing apparatus for generating running performance information indicative of a running state of at least one device, has a data storage process section that obtains device state information indicative of a result of detection of a state of the at least one device, and obtains operational activity performer information indicative of a result of detection of whether an operational activity performer that performs an operational activity to the at least one device or an operational activity with the at least one device is present at a predetermined position for the operational activity performer to do the operational activity on the at least one device or the operational activity with the at least one device, and causes the device state information and the operational activity performer information to be stored in a result-of-detection storage.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: February 2, 2016
    Assignee: OMRON Corporation
    Inventors: Yusuke Yamaji, Masahiro Ikumo, Ryota Akai, Yuhki Ueyama
  • Publication number: 20150042314
    Abstract: A detection apparatus that detects a state of power has a first current transformer that measures a first current on a side of a first power line with respect to a connecting point between the first power line extending from a commercial power supply and a second power line extending from a power generation means that supplies power having the same frequency as the commercial power supply, a second current transformer that measures a second current on a side of the second power line with respect to the connecting point, a first current direction detector that detects a direction of the first current, a second current direction detector that detects a direction of the second current, and an exclusive OR calculator that calculates an exclusive OR between a detected value of the direction of the first current and a detected value of the direction of the second current.
    Type: Application
    Filed: October 23, 2012
    Publication date: February 12, 2015
    Inventors: Hiroshi Imai, Ryota Akai, Chen Chen, Yasukazu Ohno
  • Publication number: 20140250337
    Abstract: A data processing apparatus for generating running performance information indicative of a running state of at least one device, has a data storage process section that obtains device state information indicative of a result of detection of a state of the at least one device, and obtains operational activity performer information indicative of a result of detection of whether an operational activity performer that performs an operational activity to the at least one device or an operational activity with the at least one device is present at a predetermined position for the operational activity performer to do the operational activity on the at least one device or the operational activity with the at least one device, and causes the device state information and the operational activity performer information to be stored in a result-of-detection storage.
    Type: Application
    Filed: December 28, 2011
    Publication date: September 4, 2014
    Applicant: OMRON CORPORATION
    Inventors: Yusuke Yamaji, Masahiro Ikumo, Ryota Akai, Yuhki Ueyama