Patents by Inventor Yoichi Kurokawa
Yoichi Kurokawa 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: 11782431Abstract: The disclosure provides an environment in which it is possible to switch an algorithm involved in an abnormality detection process. A control device: calculates a feature quantity from a state value acquired from a monitored object; uses a learning model on the basis of the calculated feature quantity to execute one of a plurality of types of algorithms for calculating a value indicating the probability that an abnormality is occurring in the monitored object; determines, on the basis of the calculated value, whether the abnormality is occurring; and switches, in accordance with a condition defined in advance, the one algorithm that is executed.Type: GrantFiled: November 26, 2019Date of Patent: October 10, 2023Assignee: OMRON CorporationInventor: Yoichi Kurokawa
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Patent number: 11675338Abstract: A control device includes a program execution module, a communication unit, and a collection module connected to the communication unit. The program execution module generates control instructions for a control target in accordance with a user program that is freely created. The communication unit transmits and/or receives communication data to and/or from an external device through a network. The collection module collects data satisfying a filtering condition from among the communication data that is transferred on the network. The collection module changes the filtering condition in accordance with an instruction included in the user program.Type: GrantFiled: February 6, 2019Date of Patent: June 13, 2023Assignee: OMRON CorporationInventors: Yoichi Kurokawa, Yasuhiro Kitamura
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Patent number: 11516229Abstract: A control device includes: a program execution module that executes a program created depending on a control target; a detection module that determines whether a security event occurs in access from outside to the control device; and a notification module that provides a notification, upon detection of occurrence of the security event, to a notification destination corresponding to the occurred security event. The security event includes an event that does not conform to a predetermined rule.Type: GrantFiled: November 1, 2018Date of Patent: November 29, 2022Assignee: OMRON CORPORATIONInventors: Yasuhiro Kitamura, Yoichi Kurokawa
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Patent number: 11237543Abstract: A control system includes a control device. The control device has a first communication unit and a second communication unit respectively connected to distinct networks distinct from each other, and a timer that manages a time-indicative value. The control device collects first communication data transmitted and/or received by the first communication unit, associates the collected first communication data with a value indicating a time point at which this communication data is transmitted and/or received, and stores the resulting first communication data. The control device collects second communication data transmitted and/or received by the second communication unit, associates the collected second communication data with a value indicating a time point at which this communication data is transmitted and/or received, and stores the resulting second communication data.Type: GrantFiled: February 6, 2019Date of Patent: February 1, 2022Assignee: OMRON CorporationInventor: Yoichi Kurokawa
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Patent number: 11226611Abstract: A control device includes: a physical first communication port that connects to a first network—to which an information processing device belongs; a physical second communication port that connects to a second network to which the drive device belongs; and a storage device that stores a user program created for controlling the drive device. The user program includes a filtering function for switching a filtering condition in accordance with a setting for the filtering condition that is input during execution of the user program. The filtering condition is used for determining whether or not to transmit communication data received from one device to another device. The one device is one of the drive device and the information processing device. The other device is the other of the drive device and the information processing device.Type: GrantFiled: December 20, 2018Date of Patent: January 18, 2022Assignee: OMRON CorporationInventor: Yoichi Kurokawa
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Publication number: 20220004177Abstract: The disclosure provides an environment in which it is possible to switch an algorithm involved in an abnormality detection process. A control device: calculates a feature quantity from a state value acquired from a monitored object; uses a learning model on the basis of the calculated feature quantity to execute one of a plurality of types of algorithms for calculating a value indicating the probability that an abnormality is occurring in the monitored object; determines, on the basis of the calculated value, whether the abnormality is occurring; and switches, in accordance with a condition defined in advance, the one algorithm that is executed.Type: ApplicationFiled: November 26, 2019Publication date: January 6, 2022Applicant: OMRON CorporationInventor: Yoichi KUROKAWA
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Patent number: 11215974Abstract: A technique capable of preventing the loss of packet data for any appropriate one of controllers connected to the same network is provided. An FA system includes a plurality of controllers. Each of the controllers includes: a buffer; a communication module for performing packet communication with one or more other controllers; a packet monitor module for buffering packet data generated in its own controller and packet data received by its own controller in the buffer; and a stop module for stopping, in response to a predetermined stop condition being satisfied, a buffering function of the packet monitor module for a controller specified from the plurality of controllers.Type: GrantFiled: January 28, 2019Date of Patent: January 4, 2022Assignee: OMRON CorporationInventors: Fumiaki Konishi, Yoichi Kurokawa, Hisanori Igarashi
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Patent number: 11165745Abstract: There is provided a technique for attaining a state in which communication can be made even when the same control program is used in controllers. Each of the controllers includes: a network setting including a corresponding relation between an IP address and an identifier; and a storage device that stores a control program for controlling a drive device. The control program includes a control instruction for controlling the drive device with the identifier being an input. Each of the controller includes: a generation module that generates an IP address to be different from an IP address of another controller on the same network, and that rewrites the IP address in the network setting; and a communication module that communicates with an information processing device on the same network in accordance with the IP address in the network setting.Type: GrantFiled: January 28, 2019Date of Patent: November 2, 2021Assignee: OMRON CorporationInventor: Yoichi Kurokawa
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Publication number: 20210075801Abstract: A control device includes: a program execution module that executes a program created depending on a control target; a detection module that determines whether a security event occurs in access from outside to the control device; and a notification module that provides a notification, upon detection of occurrence of the security event, to a notification destination corresponding to the occurred security event. The security event includes an event that does not conform to a predetermined rule.Type: ApplicationFiled: November 1, 2018Publication date: March 11, 2021Applicant: OMRON CorporationInventors: Yasuhiro KITAMURA, Yoichi KUROKAWA
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Publication number: 20210072730Abstract: A control system includes a control device. The control device has a first communication unit and a second communication unit respectively connected to distinct networks distinct from each other, and a timer that manages a time-indicative value. The control device collects first communication data transmitted and/or received by the first communication unit, associates the collected first communication data with a value indicating a time point at which this communication data is transmitted and/or received, and stores the resulting first communication data. The control device collects second communication data transmitted and/or received by the second communication unit, associates the collected second communication data with a value indicating a time point at which this communication data is transmitted and/or received, and stores the resulting second communication data.Type: ApplicationFiled: February 6, 2019Publication date: March 11, 2021Applicant: OMRON CorporationInventor: Yoichi KUROKAWA
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Publication number: 20210067483Abstract: There is provided a technique for attaining a state in which communication can be made even when the same control program is used in controllers. Each of the controllers includes: a network setting including a corresponding relation between an IP address and an identifier; and a storage device that stores a control program for controlling a drive device. The control program includes a control instruction for controlling the drive device with the identifier being an input. Each of the controller includes: a generation module that generates an IP address to be different from an IP address of another controller on the same network, and that rewrites the IP address in the network setting; and a communication module that communicates with an information processing device on the same network in accordance with the IP address in the network setting.Type: ApplicationFiled: January 28, 2019Publication date: March 4, 2021Applicant: OMRON CorporationInventor: Yoichi KUROKAWA
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Publication number: 20210064004Abstract: A control device includes: a physical first communication port that connects to a first network-to which an information processing device belongs; a physical second communication port that connects to a second network to which the drive device belongs; and a storage device that stores a user program created for controlling the drive device. The user program includes a filtering function for switching a filtering condition in accordance with a setting for the filtering condition that is input during execution of the user program. The filtering condition is used for determining whether or not to transmit communication data received from one device to another device. The one device is one of the drive device and the information processing device. The other device is the other of the drive device and the information processing device.Type: ApplicationFiled: December 20, 2018Publication date: March 4, 2021Applicant: OMRON CorporationInventor: Yoichi KUROKAWA
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Publication number: 20200257273Abstract: A control device includes a program execution module, a communication unit, and a collection module connected to the communication unit. The program execution module generates control instructions for a control target in accordance with a user program that is freely created. The communication unit transmits and/or receives communication data to and/or from an external device through a network. The collection module collects data satisfying a filtering condition from among the communication data that is transferred on the network. The collection module changes the filtering condition in accordance with an instruction included in the user program.Type: ApplicationFiled: February 6, 2019Publication date: August 13, 2020Applicant: OMRON CorporationInventors: Yoichi KUROKAWA, Yasuhiro KITAMURA
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Publication number: 20200201297Abstract: A technique capable of preventing the loss of packet data for any appropriate one of controllers connected to the same network is provided. An FA system includes a plurality of controllers. Each of the controllers includes: a buffer; a communication module for performing packet communication with one or more other controllers; a packet monitor module for buffering packet data generated in its own controller and packet data received by its own controller in the buffer; and a stop module for stopping, in response to a predetermined stop condition being satisfied, a buffering function of the packet monitor module for a controller specified from the plurality of controllers.Type: ApplicationFiled: January 28, 2019Publication date: June 25, 2020Applicant: OMRON CorporationInventors: Fumiaki KONISHI, Yoichi KUROKAWA, Hisanori IGARASHI
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Patent number: 10353370Abstract: A programmable logic controller (10) is connected to external equipment (40) through a serial communication unit (30), and the programmable logic controller (10) includes: a memory (7), including a user program (11) and a setting document (13), where the user program (11) records both of a command for the communication interface device and command target information thereof, and the setting document (13) saves address information corresponding to the command target information; and a processor (8), reading the user program (11) and the setting document (13) to execute the command.Type: GrantFiled: December 14, 2016Date of Patent: July 16, 2019Assignee: OMRON CorporationInventors: Yoshitaka Takeuchi, Hisanori Igarashi, Yoichi Kurokawa, Masanori Ota
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Publication number: 20170248932Abstract: A programmable logic controller (10) is connected to external equipment (40) through a serial communication unit (30), and the programmable logic controller (10) includes: a memory (7), including a user program (11) and a setting document (13), where the user program (11) records both of a command for the communication interface device and command target information thereof, and the setting document (13) saves address information corresponding to the command target information; and a processor (8), reading the user program (11) and the setting document (13) to execute the command.Type: ApplicationFiled: December 14, 2016Publication date: August 31, 2017Applicant: OMRON CorporationInventors: Yoshitaka TAKEUCHI, Hisanori IGARASHI, Yoichi KUROKAWA, Masanori OTA
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Publication number: 20150129833Abstract: A light emitting device package includes a package substrate, a light emitting device, a resin portion and a light scattering agent. The light emitting device is disposed on the package substrate and includes a plurality of light emitting nanostructures. The resin portion is disposed on the package substrate and seals the light emitting device. The light scattering agent is dispersed in the resin portion and includes a material having a refractive index greater than a refractive index of a material forming the resin portion.Type: ApplicationFiled: August 7, 2014Publication date: May 14, 2015Inventors: Mi Jeong YUN, Joong Kon SON, Yoichi KUROKAWA, Kyung Wook HWANG
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Patent number: 8189980Abstract: The present invention provides an electromagnetic wave resonator that is capable of showing surface wave resonance typically as outstanding plasmon resonance and can be manufactured industrially with excellent reproducibility and efficiency by combining currently available microprocessing technologies. The electromagnetic wave resonator of the present invention includes a first negative dielectric surface, a second negative dielectric surface and a positive dielectric thin film disposed between the first and the second negative dielectric surfaces. The positive dielectric thin film has an end face having an electromagnetic wave introduced therefrom. Intensity of the electromagnetic wave having a predetermined wavelength and being introduced from the end face is enhanced in the electromagnetic wave resonator due to resonance of a surface wave having an electric field component in a direction of film thickness of the positive dielectric thin film and without having a cut-off frequency.Type: GrantFiled: February 24, 2006Date of Patent: May 29, 2012Assignee: National Institute for Materials ScienceInventors: Hideki Miyazaki, Yoichi Kurokawa
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Publication number: 20100224901Abstract: A semiconductor light-emitting device includes an n-type semiconductor layer formed on a substrate, a light-emitting layer formed on the n-type semiconductor layer, a p-type semiconductor layer formed on the light-emitting layer, and an electrode layer formed on the p-type semiconductor layer. A through hole is formed in the electrode layer and filled with a dielectric layer. The dielectric layer is composed of a dielectric material having a dielectric constant such that the wavelength ?p of surface plasmon is shorter than (?1>?p) the wavelength ?1 of light emitted from the light-emitting layer and propagated through the semiconductor layer in order to cause both the p-type semiconductor layer side and the top side of the through hole to function as open ends of a resonator and enhance the efficiency of coupling between the surface plasmon and the light and increase the extinction cross-sectional area.Type: ApplicationFiled: May 19, 2010Publication date: September 9, 2010Applicant: ALPS ELECTRIC CO., LTD.Inventors: Yoichi KUROKAWA, Hitoshi KITAGAWA
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Publication number: 20090295510Abstract: The present invention provides an electromagnetic wave resonator that is capable of showing surface wave resonance typically as outstanding plasmon resonance and can be manufactured industrially with excellent reproducibility and efficiency by combining currently available microprocessing technologies. The electromagnetic wave resonator of the present invention includes a first negative dielectric surface, a second negative dielectric surface and a positive dielectric thin film disposed between the first and the second negative dielectric surfaces. The positive dielectric thin film has an end face having an electromagnetic wave introduced therefrom. Intensity of the electromagnetic wave having a predetermined wavelength and being introduced from the end face is enhanced in the electromagnetic wave resonator due to resonance of a surface wave having an electric field component in a direction of film thickness of the positive dielectric thin film and without having a cut-off frequency.Type: ApplicationFiled: February 24, 2006Publication date: December 3, 2009Applicant: National Institute for Materials ScienceInventors: Hideki Miyazaki, Yoichi Kurokawa