Patents by Inventor Akito Ito

Akito Ito 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: 11963778
    Abstract: A belt and electrocardiographic measurement device, the belt including a belt body windable around an upper arm in a circumferential direction of the upper arm, and an electrode array including a plurality of electrodes fixed to an inner surface of the belt body and arranged side by side in a direction, which is a longitudinal direction of the belt body, the plurality of electrodes being more than N+2 in number, where N is a number of electrodes required for obtaining electrocardiographic information, the electrodes, counted from a first electrode located at a first end in the direction (X) by counting including the first electrode, to the (N+1)th electrode in the direction (X) being arranged at equal intervals that are predetermined intervals, and intervals between each of the (N+1)th and subsequent electrodes being greater than the predetermined interval.
    Type: Grant
    Filed: December 31, 2020
    Date of Patent: April 23, 2024
    Assignees: OMRON HEALTHCARE CO., LTD., OMRON CORPORATION
    Inventors: Reiji Fujita, Yasuhiro Kawabata, Kenji Fujii, Naomi Matsumura, Akito Ito
  • Publication number: 20240122517
    Abstract: A biological information measurement device adapted to be attached on an upper arm of a human body and used thereon includes a belt portion adapted to be wound around the upper arm, electrocardiographic measurement means including a plurality of electrodes for detecting an electrocardiographic signal of the human body, pulse wave measurement means including a pulse wave sensor for detecting a pulse wave of the human body, heartbeat vibration measurement means including a vibration sensor for detecting vibration caused by beating of a heart of the human body, and an analysis processing unit configured to calculate a pre-ejection time and a pulse transit time of the heart based on time series data of the electrocardiographic signal, time series data of the pulse wave, and time series data of the vibration caused by the beating of the heart.
    Type: Application
    Filed: December 12, 2023
    Publication date: April 18, 2024
    Inventors: Yasuhiro KAWABATA, Kenji FUJII, Naomi MATSUMURA, Akito ITO, Yuki SAKAGUCHI, Reiji FUJITA, Daizo OKA
  • Publication number: 20240088391
    Abstract: A dispersant composition for an electrochemical device contains a polymer including a nitrile group-containing monomer unit and an alkylene structural unit. Upon measurement of the polymer contained in the composition by dynamic light scattering, a value (A) detected for volume-average particle diameter D50 is not less than 50 nm and not more than 800 nm, and one or more peaks are detected in a particle diameter range of not less than 5 ?m and not more than 30 ?m.
    Type: Application
    Filed: August 26, 2021
    Publication date: March 14, 2024
    Applicant: ZEON CORPORATION
    Inventors: Yukie ITO, Akito NAKAI
  • Publication number: 20240081718
    Abstract: A biological information measurement device includes a sensor unit that detects predetermined biological information related to an organ of a living body, an A/D conversion unit that converts a measurement signal output from the sensor unit into a digital signal, a storage unit that stores information including a digital signal related to the measurement signal output from the A/D conversion unit, an analysis processing unit that determines presence or absence of a suspicion of an abnormality in the organ by analyzing the digital signal, and a measurement control unit that changes a sampling frequency related to A/D conversion of the measurement signal under a predetermined condition when the analysis processing unit has determined that a suspicion of an abnormality is present in the organ.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Kenji FUJII, Yasuhiro KAWABATA, Naomi MATSUMURA, Akito ITO, Yuki SAKAGUCHI, Daizo OKA, Takuya YOSHIDA, Seiji FUKUNAGA, Tatsuaki OKA
  • Publication number: 20240084153
    Abstract: An object of the present invention is to provide an active energy ray-curable lithographic printing ink set that is excellent in superimposition of inks, and a method for producing a printed material using the same. The present invention is an active energy ray-curable printing ink set including at least one ink of black or chromatic color including at least any one of a black pigment, a cyan pigment, a magenta pigment, and a yellow pigment, and a white ink including a white pigment, wherein at least one of the ink of black or chromatic color is the black/chromatic ink (1) having a tack value of 5.0 or more and 12.0 or less at 400 rpm measured with an inkometer at 38° C., and the white ink has a tack value of 1.0 or more and 5.0 or less at 400 rpm measured with an inkometer at 38° C.
    Type: Application
    Filed: January 25, 2022
    Publication date: March 14, 2024
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Akito ITO, Noboru KOSHIMIZU, Takejiro INOUE
  • Patent number: 11729017
    Abstract: A load drive system includes a communication bus; a controller; and a driver. The controller has a CAN transceiver and a CAN controller that transmit an instruction message instructing a drive state of a solenoid of an automatic transmission via the communication bus. The driver has (i) a CAN transceiver and a CAN controller that receive the instruction message via the communication bus, and (ii) a drive circuit that drives the solenoid according to the received instruction message. The controller transmits a first periodic message in a first cycle and a second periodic message in a second cycle, respectively as the instruction message.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: August 15, 2023
    Assignee: DENSO CORPORATION
    Inventors: Akito Ito, Yusuke Takahashi, Kotaro Tanaka
  • Patent number: 11719333
    Abstract: A load drive system, capable of providing certainty about instructions transmitted from a load control device to a load drive device as well as suppressing an increase of processing load, includes an ECU, a drive device, a communication bus to which the ECU and the drive device are connected, and a third signal line different from the communication bus connecting the ECU and the drive device. The ECU generates a frame including a drive instruction message, and transmits the message to the drive device via the communication bus. The drive device receives the frame via the communication bus, and extracts the drive instruction message from data of data field in the received frame. The drive device converts the drive instruction message into a load drive signal, and notifies the converted load drive signal to the ECU via the third signal line.
    Type: Grant
    Filed: December 22, 2021
    Date of Patent: August 8, 2023
    Assignee: DENSO CORPORATION
    Inventors: Akito Ito, Yusuke Takahashi, Keisuke Atsumi
  • Publication number: 20230012616
    Abstract: To provide a belt that can be closely attached to an upper arm, and an electrocardiographic measurement apparatus. A belt includes a belt body formed in a band shape, and an electrode including a plurality of electrode pieces disposed on a main surface of the belt body, located side by side in a short direction of the belt body, and connected in series by a signal line.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 19, 2023
    Inventors: Reiji FUJITA, Akito ITO, Yasuhiro KAWABATA
  • Publication number: 20230012971
    Abstract: To provide an electrocardiographic measurement apparatus that can prevent a variety of subjects from having discomfort when the apparatus is attached to the subjects. The electrocardiographic measurement apparatus includes: a plurality of electrodes that has a length along a circumferential direction of an upper arm, the length being variable in accordance with a length in the circumferential direction of the upper arm, and detects an electric potential from the upper arm that is brought into contact with the electrodes; and a device body that generates electrocardiographic information based on the electric potential detected by the plurality of electrodes.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 19, 2023
    Inventors: Akito ITO, Reiji FUJITA, Yasuhiro KAWABATA
  • Publication number: 20230021062
    Abstract: A belt used in an electrocardiographic measurement apparatus includes a belt body to be wrapped around a living body, three or more base electrodes disposed in a longitudinal direction of the belt body, and two or more cap electrodes detachable and attachable to the base electrodes and smaller in number than the number of base electrodes.
    Type: Application
    Filed: September 23, 2022
    Publication date: January 19, 2023
    Inventors: Yuki SAKAGUCHI, Yasuhiro KAWABATA, Kenji FUJII, Naomi MATSUMURA, Reiji FUJITA, Akito ITO, Nozomi KAWAI
  • Publication number: 20220409135
    Abstract: An electrode-equipped band includes a first band section and a second band section extending along a longitudinal direction. The second band section includes a first stretchable section, an electrode, a second stretchable section, a ring member, a fold-back section, and a joining section. The first stretchable section has first stretchability along the longitudinal direction. The electrode is provided on a first surface of the first stretchable section. The second stretchable section overlaps with the first stretchable section on a side of a second surface of the first stretchable section, and has second stretchability that allows greater stretch along the longitudinal direction than the first stretchable section. The ring member is provided at a position corresponding to a band end along the longitudinal direction of the second band section, and may be connected to the first band section.
    Type: Application
    Filed: September 2, 2022
    Publication date: December 29, 2022
    Inventors: Reiji FUJITA, Yasuhiro KAWABATA, Kenji FUJII, Naomi MATSUMURA, Akito ITO, Yuki SAKAGUCHI
  • Publication number: 20220386881
    Abstract: A device can be used for a long period of time without increasing the size and weight, and a biological signal is surely measured. An aspect of the present invention includes acquiring, from a first sensor, a first biological signal related to a heartbeat of a subject, acquiring, from a second sensor, a second biological signal related to the heartbeat of the subject, detecting a first feature from the first biological signal acquired, setting a light emission control pattern based on a detection timing of the first feature and information indicating time correlation between the first biological signal and the second biological signal, and driving a light emitting element of the second sensor to perform intermittent light emission based on the light emission control pattern set.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Naomi MATSUMURA, Yasuhiro KAWABATA, Kenji FUJII, Reiji FUJITA, Akito ITO, Yuki SAKAGUCHI
  • Publication number: 20220386882
    Abstract: While power consumption is suppressed, biological information is measured without fail when a condition of a subject changes. An aspect of the present invention is configured to acquire a biological signal related to a beat of a heart of the subject from a biometric sensor, detect a feature of the biological signal from the biological signal acquired, determine an abnormal change in the feature based on the feature detected and first threshold information set in advance, set an operation mode of the biometric sensor to a continuous operation mode when the abnormal change in the feature is determined, and set the operation mode of the biometric sensor to an intermittent operation mode in a period without the abnormal change.
    Type: Application
    Filed: August 15, 2022
    Publication date: December 8, 2022
    Inventors: Naomi MATSUMURA, Yasuhiro KAWABATA, Kenji FUJII, Reiji FUJITA, Akito ITO, Yuki SAKAGUCHI
  • Publication number: 20220221049
    Abstract: A load drive system, capable of providing certainty about instructions transmitted from a load control device to a load drive device as well as suppressing an increase of processing load, includes an ECU, a drive device, a communication bus to which the ECU and the drive device are connected, and a third signal line different from the communication bus connecting the ECU and the drive device. The ECU generates a frame including a drive instruction message, and transmits the message to the drive device via the communication bus. The drive device receives the frame via the communication bus, and extracts the drive instruction message from data of data field in the received frame. The drive device converts the drive instruction message into a load drive signal, and notifies the converted load drive signal to the ECU via the third signal line.
    Type: Application
    Filed: December 22, 2021
    Publication date: July 14, 2022
    Inventors: AKITO ITO, YUSUKE TAKAHASHI, KEISUKE ATSUMI
  • Patent number: 11369276
    Abstract: A blood pressure measurement device according to one aspect includes: a blood pressure measurement unit configured to measure blood pressure at a measurement target site of a measurement target subject; a pulse transit time measurement unit configured to measure a pulse transit time at the measurement target site of the measurement target subject; a blood pressure value calculation unit configured to calculate a blood pressure value, on the basis of measurement results of the pulse transit time and a relational expression representing a correlation between the pulse transit time and the blood pressure; a posture instruction unit configured to instruct the measurement target subject to assume a plurality of postures in which height positions of the measurement target site with respect to a heart of the measurement target subject are different from each other; and a calibration unit configured to calibrate the relational expression, on the basis of the blood pressure measured by the blood pressure measurement u
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: June 28, 2022
    Assignees: OMRON HEALTHCARE CO., LTD., OMRON CORPORATION
    Inventors: Kenji Fujii, Yasuhiro Kawabata, Naomi Matsumura, Reiji Fujita, Akito Ito
  • Publication number: 20220063522
    Abstract: A drive device includes: a control storage unit of a current value of a control signal indicating a drive state of each of loads; a drive unit of the switches according to the current value; an acquisition unit of a current drive state of each load; a determination storage unit of a transition determination value; and a determination unit that compares a correlated drive state of each load correlated with the current value with the transition determination value, and determines that the current value is abnormal when the correlated drive state and the transition determination value satisfy a predetermined corresponding relationship.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Inventors: YUSUKE TAKAHASHI, AKITO ITO, KOTARO TANAKA, KEISUKE ATSUMI
  • Publication number: 20220063523
    Abstract: A drive device includes a driver, a determination storage, a comparator, and at least one of a control storage and a monitor storage. The control storage stores a control pattern that includes a signal instructing a conduction state of each of loads. The driver control semiconductor switches respectively corresponding to the loads according to the control pattern. The determination storage stores a determination pattern. The monitor storage stores a monitor pattern that is a result of monitoring the conduction state of each of the loads. The comparator compares the determination pattern with a comparison pattern that is at least one of the control pattern and the monitor pattern, and determine that an abnormality of the comparison pattern has occurred in response to that the determination pattern and the comparison pattern satisfy a predetermined correspondence relationship.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 3, 2022
    Inventors: Yusuke TAKAHASHI, Akito ITO, Kotaro TANAKA, Keisuke ATSUMI
  • Publication number: 20220070186
    Abstract: A drive device includes: a receiving unit of a load control signal indicative of a drive state of each load; a control storage unit of the load control signal; a drive unit of the switches according to the load control signal; an acquisition unit of a current drive state of each load at a present time, or a current vehicle state; a determination storage unit of a transition determination value; and a determination unit that compares a correlated drive state of each load correlated with the load control signal with the transition determination value, and determines that the load control signal is abnormal when the correlated drive state and the transition determination value satisfy a predetermined corresponding relationship.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 3, 2022
    Inventors: Akito ITO, Yusuke TAKAHASHI, Kotaro TANAKA
  • Publication number: 20220060352
    Abstract: A load drive system includes a communication bus; a controller; and a driver. The controller has a CAN transceiver and a CAN controller that transmit an instruction message instructing a drive state of a solenoid of an automatic transmission via the communication bus. The driver has (i) a CAN transceiver and a CAN controller that receive the instruction message via the communication bus, and (ii) a drive circuit that drives the solenoid according to the received instruction message. The controller transmits a first periodic message in a first cycle and a second periodic message in a second cycle, respectively as the instruction message.
    Type: Application
    Filed: August 16, 2021
    Publication date: February 24, 2022
    Inventors: Akito ITO, Yusuke TAKAHASHI, Kotaro TANAKA
  • Publication number: 20210169347
    Abstract: A pulse transit time measurement device according to an aspect includes: a belt unit; a plurality of first electrodes and second electrodes provided on the belt unit; a third electrode provided on the belt unit; a first electrocardiographic signal acquisition unit that acquires a first electrocardiographic signal of a user using the plurality of first electrodes; a second electrocardiographic signal acquisition unit that acquires a second electrocardiographic signal of the user with the second electrode and the third electrode; a feature amount parameter calculation unit that calculates a feature amount parameter related to a waveform feature point of the first electrocardiographic signal on the basis of a waveform feature point of the second electrocardiographic signal; a pulse wave signal acquisition unit that acquires a pulse wave signal representing a pulse wave of the user; and a pulse transit time calculation unit that detects a waveform feature point.
    Type: Application
    Filed: February 18, 2021
    Publication date: June 10, 2021
    Inventors: Akito ITO, Yasuhiro KAWABATA, Kenji FUJII, Naomi MATSUMURA, Reiji FUJITA