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公开(公告)号：US20250155320A1
公开(公告)日：2025-05-15
申请号：US18917680
申请日：2024-10-16
Inventor： Yoshihisa SO
IPC: G01M11/00
Abstract: Waveform analysis of optical power measured by an optical time-domain reflectometer is further facilitated. A program is configured to cause a computer to operate as an information processing apparatus (10) including a controller (11) configured to acquire a waveform representing a temporal variation of returned light of pulsed light incident on an optical fiber, detect, based on the waveform, an event in the optical fiber, and cause the waveform and a pattern indicating the detected event to be displayed on a display (15). The controller (11) is configured to cause, as the pattern, an image including an indication of a travel direction of the pulsed light to be displayed on the display (15).
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公开(公告)号：US12300412B2
公开(公告)日：2025-05-13
申请号：US17906006
申请日：2021-03-04
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Shoichi Shiosaki , Shinya Mito , Shoma Takeda
Abstract: A magnetizing apparatus (1) includes an openable and closeable annular portion (3) formed by a magnet (2). The annular portion (3) includes a lock mechanism (4) configured to hold the annular portion (3) in a closed state. A magnetizing method includes an attaching step of placing an object inside the annular portion (3) by opening and closing the annular portion (3) and attaching the magnetizing apparatus (1) to the object by holding the annular portion (3) in a closed state with the lock mechanism (4), a moving step of moving the magnetizing apparatus (1) relative to the object in the axial direction of the annular portion (3) while the magnetizing apparatus (1) is attached to the object, and a detaching step, after the moving step, of releasing the lock mechanism (4) to detach the magnetizing apparatus (1) from the object.
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公开(公告)号：US20250150350A1
公开(公告)日：2025-05-08
申请号：US18921548
申请日：2024-10-21
Applicant: Yokogawa Electric Corporation
Inventor： Atsushi SATO , Takeshi TOINAGA , Yoshitaka YOSHIDA
IPC: H04L41/12 , H04L67/1061
Abstract: A first wired communication unit 511 has a wired connection function. A second wired communication unit 512 has the wired connection function. A third wired communication unit 513 has the wired connection function and is connected to a node 21. A wireless communication unit 514 has a wireless communication function connectable to a plurality of the wireless networks. An identification unit 5161 identifies whether an adjacent device connected to the first wired communication unit 511 or the second wired communication unit 512 via a wired network is a communication control device having the same function. A communication control unit 5162 establishes communication with another communication control device via the wireless network, and has a bridge function of transferring a communication frame to an appropriate destination among the first wired communication unit 511, the second wired communication unit 512, the third wired communication unit 513, and the wireless communication unit 514.
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公开(公告)号：US20250146846A1
公开(公告)日：2025-05-08
申请号：US18934897
申请日：2024-11-01
Applicant: Yokogawa Electric Corporation
Inventor： Hiroyuki TAKAHASHI
Abstract: In a field device 20 capable of performing field communication, a diagnostic script received using the field communication is stored in a storage unit 211, the diagnostic script describing a sequence of a diagnostic process to be executed at the field device 20, and a processor 212 makes a diagnosis on the field device 20 by executing the diagnostic script stored in the storage unit 211. For example, by executing the diagnostic script, the processor 212 acquires information on an alarm that has occurred at the field device 20, updates firmware of the field device 20, acquires an internal variable of the field device 20, or performs zero point adjustment of the field device 20.
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公开(公告)号：US12279081B2
公开(公告)日：2025-04-15
申请号：US17679250
申请日：2022-02-24
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Tomoaki Eto , Sawako Ishihara , Hayato Waki , Ken Muramatsu
Abstract: An information processing apparatus includes a processing unit that generates an operation log of an operation target device operated by a user, by identifying an operation content of the operation target device, based on a captured image obtained by capturing an image of the operation target device, and operation pattern information of a model of the operation target device.
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Patent Agency Ranking
公开(公告)号：US12278890B2
公开(公告)日：2025-04-15
申请号：US17691124
申请日：2022-03-10
Applicant: Yokogawa Electric Corporation
Inventor： Yosuke Ishii , Tomohiro Kuroda , Hiroaki Kanokogi , Yota Furukawa , Shugo Sakatani
IPC: G06F21/62 , G05B19/418 , H04L9/08 , H04L9/32 , H04L9/00
Abstract: Provided is a data recording apparatus including a key exchange unit for exchanging a first encryption key with a system in response to authentication by the system, a data collection unit for collecting measurement data obtained by measuring a physical quantity associated with a measurement target, a data recording unit for recording the measurement data, and a data transmission unit for transmitting the measurement data encrypted using the first encryption key to the system. In addition, provided is a system including a key management unit for exchanging a first encryption key with a data recording apparatus in response to authentication of the data recording apparatus, a data obtaining unit for obtaining measurement data obtained by measuring a physical quantity associated with the measurement target encrypted by the data recording apparatus using the first encryption key, and a data management unit for managing the measurement data using a distributed ledger technology.
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公开(公告)号：US12270018B2
公开(公告)日：2025-04-08
申请号：US16963762
申请日：2019-01-18
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Takeyuki Mogi
Abstract: A culture additive diffusion mechanism (23) includes an additive retention unit (20) configured to retain an additive (21) used in a culture and a diffusion adjustment unit (22) configured to adjust a diffusion rate of the additive (21) from the inside of the additive retention unit (20) to the outside of the additive retention unit (20).
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公开(公告)号：US20250112887A1
公开(公告)日：2025-04-03
申请号：US18375883
申请日：2023-10-02
Applicant: Yokogawa Electric Corporation
Inventor： Vien Nguyen
IPC: H04L61/3015 , H04L61/4541
Abstract: Implementations described herein relate to periodically verifying aliases, e.g., by causing cross-platform clients to periodically verify aliases with cross-platform servers to which they are subscribed. In various implementations, a global discovery server (GDS) may be queried for a mapping between an alias and a connection string of an input-output (I/O) channel hosted by a distributed control node (DCN). A cross-platform client may be subscribed to the I/O channel by establishing a persistent network connection using the connection string. The persistent network connection may be used to obtain, from a local alias database of the DCN, a locally updated list of mappings between aliases and connection strings. A discrepancy may be identified between the locally updated list of mappings and the mapping between the alias and the connection string of the I/O channel hosted by the DCN. Based on the discrepancy, various remedial actions may be taken.
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公开(公告)号：US12265051B2
公开(公告)日：2025-04-01
申请号：US18090169
申请日：2022-12-28
Applicant: Yokogawa Electric Corporation
Inventor： Toshihiko Kyakuno
IPC: G01N27/333 , G01N33/18
Abstract: A residual chlorine meter for measuring the concentration of residual chlorine in sample water includes an indicator electrode and a counter electrode to be immersed in the sample water and a controller that measures the concentration of residual chlorine in the sample water based on a diffusion current flowing between the indicator electrode and the counter electrode in a case in which a voltage is applied between the indicator electrode and the counter electrode. The controller detects a degree of deterioration of a replaceable component of the residual chlorine meter based on a motor current, flowing through a motor that rotates the indicator electrode in the sample water, and/or the diffusion current.
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公开(公告)号：US20250079822A1
公开(公告)日：2025-03-06
申请号：US18811462
申请日：2024-08-21
Inventor： Akira Tanigawa , Hiroyuki Moriyama , Kouichi Kataoka
Abstract: It would be helpful to enable a frame controller to support multiple- slot-width modules. A measurement apparatus includes a plurality of slots to which one or more modules are connectable, a power supply manager configured to control powering the modules connected to the plurality of slots, and a display configured to display measurement signals acquired by the modules. The power supply manager is configured to, when an anomaly is detected at any slot of the plurality of slots, identify, as one or more target slots, all one or more slots to which a module connected to the slot with the detected anomaly is connected, and stop powering the identified target slots.
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