Patents by Inventor Takuya Sakata

Takuya Sakata 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: 12227193
    Abstract: The driver assistance system comprises a detector, a navigator, a stimulator, and a voice interactor. The detector detects wakefulness reduction of a driver or absent-minded driving by the driver. The navigator navigates a vehicle based on map information. The stimulator continuously or intermittently applies stimulation to the driver. The voice interactor interacts with the driver by voice. The navigator searches for a resting facility on a route from the map information in response to a detection of the wakefulness reduction or the absent-minded driving. The voice interactor executes a first interaction of proposing navigation to the resting facility by the navigator in response to the detection of the wakefulness reduction or the absent-minded driving, and executes a second interaction of proposing application of stimulation by the stimulator after an execution of the first interaction and during a period until the vehicle arrives at the resting facility.
    Type: Grant
    Filed: December 19, 2023
    Date of Patent: February 18, 2025
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masataka Sano, Koichiro Yamauchi, Takuya Sakata
  • Publication number: 20250054414
    Abstract: An organ model for a medical device, which is held in a container in a state of being filled with a liquid and into which a catheter can be inserted through insertion parts provided on the container, comprise a soft member including a holding part that is held in the container, and a hard member including a plate-shaped part installed on the inner surface of the container and being integrated with the soft member, wherein the hard member is not fixed to the container, is attachable to or detachable from the soft member, and is positioned by being connected to the soft member.
    Type: Application
    Filed: October 22, 2024
    Publication date: February 13, 2025
    Applicants: OSAKA UNIVERSITY, JMC CORPORATION
    Inventors: Keita OKAYAMA, Yasushi SAKATA, Daichi WATANABE, Makoto INADA, Takuya YUDASAKA
  • Publication number: 20250044311
    Abstract: Provided is an automatic analyzer that detects an abnormality of an electrode constituting a stirring mechanism with high accuracy and suppresses decline in processing capability. The automatic analyzer comprises: a sample dispensing mechanism that dispenses a sample into a reaction container; a reagent dispensing mechanism that dispenses a reagent into the reaction container; a stirring mechanism that has an electrode; a reaction disk that rotates and stops the reaction container; and a control unit that, when the reaction container containing a mixture of the sample and the reagent is stopped at a stirring position, applies a voltage to the electrode and irradiates the mixture with ultrasonic waves. The control unit applies a voltage to the electrode and measures an electric impedance when, during operation, the reaction container into which a liquid has been dispensed by the reagent dispensing mechanism in an empty state is stopped at the stirring position.
    Type: Application
    Filed: November 15, 2022
    Publication date: February 6, 2025
    Inventors: Kenshiro SAKATA, Yoichiro SUZUKI, Tetsuji KAWAHARA, Takuya TAKAHASHI
  • Publication number: 20250029404
    Abstract: A drowsiness sign notification device detects an eye-closed state of a driver of a vehicle from each of face images; determines whether a first eye closure ratio of the number of face images with the eye-closed state to the number of the face images generated in a first period exceeds a first threshold; determines whether a second eye closure ratio of the number of face images with the eye-closed state to the number of the face images generated in a second period longer than the first period exceeds a second threshold less than or equal to the first threshold after determination that the first eye closure ratio does not exceed the first threshold; and notifies detection of a sign of drowsiness to the driver, when the first eye closure ratio exceeds the first threshold or that the second eye closure ratio exceeds the second threshold.
    Type: Application
    Filed: July 17, 2024
    Publication date: January 23, 2025
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, DENSO CORPORATION, AISIN CORPORATION
    Inventors: Koichiro YAMAUCHI, Takuya SAKATA, Kimimasa TAMURA
  • Publication number: 20240326826
    Abstract: A driving support device includes a processor configured to detect a sign of sleepiness of a driver of a vehicle, based on a driver image representing the driver's head generated by a driver monitoring camera configured to take a picture of the driver's head, determine a response request to the driver, depending on environment around the vehicle or a travel condition of the vehicle, when a sign of the driver's sleepiness is detected, and notify the driver of the response request via a user interface provided in the vehicle.
    Type: Application
    Filed: February 16, 2024
    Publication date: October 3, 2024
    Inventors: Koichiro Yamauchi, Takuya Sakata
  • Patent number: 12029551
    Abstract: A drowsiness sign notification system that gives a drowsiness sign notice to a driver that shows a drowsiness sign includes a driver monitor and a controller. The driver monitor detects the driver state being a state of the driver. The controller executes a drowsiness level estimation process in which a drowsiness level of the driver from a plurality of drowsiness levels based on the driver state. And, the controller executes an accumulation process in which a drowsiness point that is numerical value corresponding to the drowsiness level estimated in the drowsiness level estimation process is accumulated. Then, when an accumulation value of the drowsiness point calculated in the accumulation process exceeds a predetermined threshold, the controller determines that the driver shows the drowsiness sign.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: July 9, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuya Sakata, Koichiro Yamauchi, Masataka Sano, Hiromi Nemoto, Shunichiroh Sawai
  • Publication number: 20240123998
    Abstract: The driver assistance system comprises a detector, a navigator, a stimulator, and a voice interactor. The detector detects wakefulness reduction of a driver or absent-minded driving by the driver. The navigator navigates a vehicle based on map information. The stimulator continuously or intermittently applies stimulation to the driver. The voice interactor interacts with the driver by voice. The navigator searches for a resting facility on a route from the map information in response to a detection of the wakefulness reduction or the absent-minded driving. The voice interactor executes a first interaction of proposing navigation to the resting facility by the navigator in response to the detection of the wakefulness reduction or the absent-minded driving, and executes a second interaction of proposing application of stimulation by the stimulator after an execution of the first interaction and during a period until the vehicle arrives at the resting facility.
    Type: Application
    Filed: December 19, 2023
    Publication date: April 18, 2024
    Inventors: Masataka SANO, Koichiro YAMAUCHI, Takuya SAKATA
  • Patent number: 11919522
    Abstract: An apparatus for determining a state includes a processor configured to, when a movement area in which movement values indicating looking directions or face orientations of a driver of a vehicle are distributed is included in a predetermined area, determine that the driver is in a state of careless driving, and enlarge the predetermined area in accordance with a road condition around the vehicle. A method for determining a state includes, when a movement area in which movement values indicating looking directions or face orientations of a driver of a vehicle are distributed is included in a predetermined area, determining that the driver is in a state of careless driving, and enlarging the predetermined area in accordance with a road condition around the vehicle.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: March 5, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro Yamauchi, Shunichiroh Sawai, Takuya Sakata, Masataka Sano
  • Patent number: 11897481
    Abstract: The driver assistance system comprises a detector, a navigator, a stimulator, and a voice interactor. The detector detects wakefulness reduction of a driver or absent-minded driving by the driver. The navigator navigates a vehicle based on map information. The stimulator continuously or intermittently applies stimulation to the driver. The voice interactor interacts with the driver by voice. The navigator searches for a resting facility on a route from the map information in response to a detection of the wakefulness reduction or the absent-minded driving. The voice interactor executes a first interaction of proposing navigation to the resting facility by the navigator in response to the detection of the wakefulness reduction or the absent-minded driving, and executes a second interaction of proposing application of stimulation by the stimulator after an execution of the first interaction and during a period until the vehicle arrives at the resting facility.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: February 13, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masataka Sano, Koichiro Yamauchi, Takuya Sakata
  • Publication number: 20240034331
    Abstract: A drowsiness sign notification system applied to a vehicle includes a driver monitor and a controller. The driver monitor detects a driver state being a state of a driver of the vehicle. The controller executes a drowsiness sign determination process that determines whether or not the driver shows a drowsiness sign based on the driver state. When it is determined that the driver shows the drowsiness sign and an activation condition is satisfied, the controller executes rest area informing process that informs the driver of a rest area. The activation condition of the rest area informing process is set from a viewpoint of a relationship between a location of the rest area and a target route of the vehicle, or an expected time required for the vehicle to reach the rest area.
    Type: Application
    Filed: October 3, 2023
    Publication date: February 1, 2024
    Inventors: Kaori SAKAI, Takaaki ITO, Tetsu YAJIMA, Koichiro YAMAUCHI, Masataka SANO, Takuya SAKATA
  • Patent number: 11807246
    Abstract: A drowsiness sign notification system applied to a vehicle includes a driver monitor and a controller. The driver monitor detects a driver state being a state of a driver of the vehicle. The controller executes a drowsiness sign determination process that determines whether or not the driver shows a drowsiness sign based on the driver state. When it is determined that the driver shows the drowsiness sign and an activation condition is satisfied, the controller executes rest area informing process that informs the driver of a rest area. The activation condition of the rest area informing process is set from a viewpoint of a relationship between a location of the rest area and a target route of the vehicle, or an expected time required for the vehicle to reach the rest area.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: November 7, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, CMC CORPORATION
    Inventors: Kaori Sakai, Takaaki Ito, Tetsu Yajima, Koichiro Yamauchi, Masataka Sano, Takuya Sakata
  • Patent number: 11636749
    Abstract: A drowsiness sign notification system applied to a vehicle includes a driver monitor and a controller. The driver monitor detects a driver state being a state of a driver of the vehicle. The controller executes a drowsiness sign determination process that determines whether or not the driver shows a drowsiness sign based on the driver state. When it is determined that the driver shows the drowsiness sign, the controller executes a first drowsiness sign notification process that gives a first drowsiness sign notice to the driver through display or vibration without using audio. When it is determined again that the driver shows the drowsiness sign after the first drowsiness sign notification process, the controller executes a second drowsiness sign notification process that gives a second drowsiness sign notice to the driver through audio.
    Type: Grant
    Filed: June 18, 2021
    Date of Patent: April 25, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichiro Yamauchi, Shunichiroh Sawai, Masataka Sano, Takuya Sakata, Hiromi Nemoto
  • Patent number: 11462027
    Abstract: An eye opening degree calculation device includes: a processor configured to: calculate a degree of eye opening of a crew, based on an image in which a face of the crew appears; calculate a face direction angle of the crew with respect to a predetermined reference direction, based on the image; calculate a line-of-sight angle of the crew with respect to the predetermined reference direction, based on the image; correct the degree of eye opening or a threshold value which will be compared with the degree of eye opening, when a difference between the face direction angle and the line-of-sight angle is equal to or greater than a predetermined value; and determine an eye opening state of the crew, based on the corrected degree of eye opening or a comparison result of the degree of eye opening with the corrected threshold value.
    Type: Grant
    Filed: March 22, 2021
    Date of Patent: October 4, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masataka Sano, Yosuke Morino, Kimimasa Tamura, Koichiro Yamauchi, Takuya Sakata, Taku Mitsumori
  • Patent number: 11453401
    Abstract: A closed eye determination device includes an eye opening degree detection unit that detects a degree of eye opening of a driver from each of a series of face images of a driver in time series in a latest certain period of time being acquired by a driver monitor camera, a local minimum value extraction unit that extracts a local minimum value of the degree of eye opening from a change in time series of the degree of eye opening in the certain period of time, a reference lower limit value-setting unit that sets, as a reference lower limit value of the degree of eye opening, a local minimum value in order corresponding to a blinking number of the driver in the certain period of time in order from the smallest local minimum value among local minimum values of the degree of eye opening in the certain period of time, a threshold value setting unit that sets a closed eye determination threshold value, based on the reference lower limit value, and a closed eye determination unit that determines that an eye of the dr
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: September 27, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Koichiro Yamauchi, Takuya Sakata, Taku Mitsumori, Kimimasa Tamura, Masataka Sano, Yosuke Morino
  • Publication number: 20220000394
    Abstract: A drowsiness sign notification system that gives a drowsiness sign notice to a driver that shows a drowsiness sign includes a driver monitor and a controller. The driver monitor detects the driver state being a state of the driver. The controller executes a drowsiness level estimation process in which a drowsiness level of the driver from a plurality of drowsiness levels based on the driver state. And, the controller executes an accumulation process in which a drowsiness point that is numerical value corresponding to the drowsiness level estimated in the drowsiness level estimation process is accumulated. Then, when an accumulation value of the drowsiness point calculated in the accumulation process exceeds a predetermined threshold, the controller determines that the driver shows the drowsiness sign.
    Type: Application
    Filed: June 18, 2021
    Publication date: January 6, 2022
    Inventors: Takuya SAKATA, Koichiro YAMAUCHI, Masataka SANO, Hiromi NEMOTO, Shunichiroh SAWAI
  • Publication number: 20220001878
    Abstract: The driver assistance system comprises a detector, a navigator, a stimulator, and a voice interactor. The detector detects wakefulness reduction of a driver or absent-minded driving by the driver. The navigator navigates a vehicle based on map information. The stimulator continuously or intermittently applies stimulation to the driver. The voice interactor interacts with the driver by voice. The navigator searches for a resting facility on a route from the map information in response to a detection of the wakefulness reduction or the absent-minded driving. The voice interactor executes a first interaction of proposing navigation to the resting facility by the navigator in response to the detection of the wakefulness reduction or the absent-minded driving, and executes a second interaction of proposing application of stimulation by the stimulator after an execution of the first interaction and during a period until the vehicle arrives at the resting facility.
    Type: Application
    Filed: June 17, 2021
    Publication date: January 6, 2022
    Inventors: Masataka SANO, Koichiro YAMAUCHI, Takuya SAKATA
  • Publication number: 20220001875
    Abstract: A drowsiness sign notification system applied to a vehicle includes a driver monitor and a controller. The driver monitor detects a driver state being a state of a driver of the vehicle. The controller executes a drowsiness sign determination process that determines whether or not the driver shows a drowsiness sign based on the driver state. When it is determined that the driver shows the drowsiness sign and an activation condition is satisfied, the controller executes rest area informing process that informs the driver of a rest area. The activation condition of the rest area informing process is set from a viewpoint of a relationship between a location of the rest area and a target route of the vehicle, or an expected time required for the vehicle to reach the rest area.
    Type: Application
    Filed: June 30, 2021
    Publication date: January 6, 2022
    Inventors: Kaori SAKAI, Takaaki ITO, Tetsu YAJIMA, Koichiro YAMAUCHI, Masataka SANO, Takuya SAKATA
  • Publication number: 20220005339
    Abstract: A drowsiness sign notification system applied to a vehicle includes a driver monitor and a controller. The driver monitor detects a driver state being a state of a driver of the vehicle. The controller executes a drowsiness sign determination process that determines whether or not the driver shows a drowsiness sign based on the driver state. When it is determined that the driver shows the drowsiness sign, the controller executes a first drowsiness sign notification process that gives a first drowsiness sign notice to the driver through display or vibration without using audio. When it is determined again that the driver shows the drowsiness sign after the first drowsiness sign notification process, the controller executes a second drowsiness sign notification process that gives a second drowsiness sign notice to the driver through audio.
    Type: Application
    Filed: June 18, 2021
    Publication date: January 6, 2022
    Inventors: Koichiro YAMAUCHI, Shunichiroh SAWAI, Masataka SANO, Takuya SAKATA, Hiromi NEMOTO
  • Publication number: 20210370956
    Abstract: An apparatus for determining a state includes a processor configured to, when a movement area in which movement values indicating looking directions or face orientations of a driver of a vehicle are distributed is included in a predetermined area, determine that the driver is in a state of careless driving, and enlarge the predetermined area in accordance with a road condition around the vehicle. A method for determining a state includes, when a movement area in which movement values indicating looking directions or face orientations of a driver of a vehicle are distributed is included in a predetermined area, determining that the driver is in a state of careless driving, and enlarging the predetermined area in accordance with a road condition around the vehicle.
    Type: Application
    Filed: May 27, 2021
    Publication date: December 2, 2021
    Inventors: Koichiro YAMAUCHI, Shunichiroh SAWAI, Takuya SAKATA, Masataka SANO
  • Publication number: 20210303889
    Abstract: An eye opening degree calculation device includes: a processor configured to: calculate a degree of eye opening of a crew, based on an image in which a face of the crew appears; calculate a face direction angle of the crew with respect to a predetermined reference direction, based on the image; calculate a line-of-sight angle of the crew with respect to the predetermined reference direction, based on the image; correct the degree of eye opening or a threshold value which will be compared with the degree of eye opening, when a difference between the face direction angle and the line-of-sight angle is equal to or greater than a predetermined value; and determine an eye opening state of the crew, based on the corrected degree of eye opening or a comparison result of the degree of eye opening with the corrected threshold value.
    Type: Application
    Filed: March 22, 2021
    Publication date: September 30, 2021
    Inventors: Masataka SANO, Yosuke MORINO, Kimimasa TAMURA, Koichiro YAMAUCHI, Takuya SAKATA, Taku MITSUMORI