Patents by Inventor Iwao Izumikawa

Iwao Izumikawa 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: 11912195
    Abstract: A getting-off support device of a vehicle continues to issue an alarm for a predetermined time when a physical body condition indicating that a physical body that obstructs getting-off of an occupant in the vehicle exists around the vehicle and a getting-off condition indicating that the occupant in the vehicle intends to get off the vehicle are satisfied, and prolongs the time of issuing the alarm when both of the physical body condition and the getting-off condition are further satisfied while the issuing of the alarm is continued.
    Type: Grant
    Filed: May 31, 2022
    Date of Patent: February 27, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noriyuki Saitoh, Iwao Izumikawa
  • Patent number: 11813984
    Abstract: An alighting support device performs warning to notify a vehicle occupant of presence of a moving body having a possibility to come into contact with a right door or a left door of the vehicle. The alighting support device performs the warning when a warning condition is satisfied. When the right door or the left door is opened or is about to be opened while the moving body is moving in a right warning area set on the right side of the vehicle or a left warning area set on the left side of the vehicle, the alighting support device determines that the warning condition is satisfied. When the moving body enters the right warning area or the left warning area with the right door or the left door being open to a predetermined degree or more, the alighting support device determines that the warning condition is not satisfied.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: November 14, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji Takeuchi, Noriyuki Saitoh, Iwao Izumikawa, Junya Fukuta
  • Patent number: 11798417
    Abstract: A driving assistance device includes an object detection unit, an acquisition unit acquiring a first value of a relative speed of an approaching object with respect to an own vehicle, a ghost determination unit, and an assistance determination unit. The ghost determination unit calculates a second value of the relative speed of the approaching object in accordance with a speed of the own vehicle and a value of the relative speed of a following object located between the own vehicle and the approaching object; calculates, as a speed difference, an absolute difference between the first value of the relative speed and the second value of the relative speed; calculates, as an azimuth difference, an absolute difference between an azimuth of the following object and an azimuth of the approaching object; and determines whether the approaching object is the ghost target based on the speed difference and the azimuth difference.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: October 24, 2023
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroki Hori, Takayuki Kitamura, Koji Takeuchi, Iwao Izumikawa, Hiroki Shimazu
  • Patent number: 11667284
    Abstract: A control ECU (10) executes left-side preliminary control for preventing an occupant from performing an operation of opening a left door when an object is predicted to reach a left virtual line segment (LVL) based on a position of the object. The control ECU executes right-side preliminary control for preventing the occupant from performing an operation of opening a right door when the object is predicted to reach a right virtual line segment (RVL) based on the position of the object. Further, the control ECU executes both-side preliminary control for preventing the occupant from performing an operation of opening both of the left door and the right door when the object is predicted to reach a central virtual line segment (CVL).
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: June 6, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noriyuki Saito, Takuya Kaminade, Iwao Izumikawa
  • Patent number: 11639133
    Abstract: A vehicle exit assist apparatus with improved security and power consumption includes an exit restriction part including a warning and/or door opening restriction when an occupant's exit action is detected and an obstacle around a self-vehicle is detected by an obstacle detection part. The obstacle detection part and the exit restriction part are started when the exit action is detected in a situation where the obstacle detection part and/or the exit restriction part are not working. The obstacle detection part may transmit a signal corresponding to its operating state after starting-up and the exit restriction part may be forced to perform the exit restriction action when the obstacle detection part is not operating normally based on the signal. It may be configured to cancel the exit restriction action when such a compulsory exit restriction action is being continuously performed for a period longer than a predetermined period.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: May 2, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuto Kumashiro, Noriyuki Saitoh, Iwao Izumikawa
  • Publication number: 20220410799
    Abstract: A getting-off support device of a vehicle continues to issue an alarm for a predetermined time when a physical body condition indicating that a physical body that obstructs getting-off of an occupant in the vehicle exists around the vehicle and a getting-off condition indicating that the occupant in the vehicle intends to get off the vehicle are satisfied, and prolongs the time of issuing the alarm when both of the physical body condition and the getting-off condition are further satisfied while the issuing of the alarm is continued.
    Type: Application
    Filed: May 31, 2022
    Publication date: December 29, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noriyuki SAITOH, Iwao IZUMIKAWA
  • Patent number: 11479173
    Abstract: In a driving assistance apparatus, an area setter is configured to set a warning area on at least one of a left rear side and a right rear side of a subject vehicle. A notifier is configured to provide a notification in response to an object detector detecting an object in the warning area. A determiner is configured to determine initiation and completion of a turn at an intersection during turning of the subject vehicle at the intersection. An area changer is configured to, in response to the determiner determining the initiation of the turn, reduce the warning area in a direction approaching the subject vehicle, and in response to the determiner determining the completion of the turn, expand the reduced warning area according to a traveling state of the subject vehicle after the completion of the turn.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: October 25, 2022
    Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naotsugu Shimizu, Koji Takeuchi, Iwao Izumikawa, Masaki Kawakami
  • Publication number: 20220252719
    Abstract: An object detection apparatus is mounted to a vehicle and detects an object by a reflected wave of a probe wave. The object detection apparatus calculates a relative velocity of the object to the vehicle, estimates an azimuth of the object relative to the vehicle, and corrects the estimated azimuth. The object detection apparatus generates a velocity-azimuth curve that indicates a relationship between the relative velocity of the object and the azimuth of the object that is calculated based on a theoretical mounting angle of the object detection apparatus, supplies a weight to an azimuth error that is an error between the velocity-azimuth curve and the estimated azimuth, based on the estimated azimuth, and calculates a correction value of the estimated azimuth by calculating, as an actual mounting angle deviation of the object detection apparatus, a weighted average value of the azimuth error to which the weight is supplied.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 11, 2022
    Inventors: Masato ONOZAWA, Hiroki HORI, Koji TAKEUCHI, Iwao IZUMIKAWA, Hiroki SHIMAZU
  • Publication number: 20220134950
    Abstract: A vehicle exit assist apparatus with improved security and power consumption includes an exit restriction part including a warning and/or door opening restriction when an occupant's exit action is detected and an obstacle around a self-vehicle is detected by an obstacle detection part. The obstacle detection part and the exit restriction part are started when the exit action is detected in a situation where the obstacle detection part and/or the exit restriction part are not working. The obstacle detection part may transmit a signal corresponding to its operating state after starting-up and the exit restriction part may be forced to perform the exit restriction action when the obstacle detection part is not operating normally based on the signal. It may be configured to cancel the exit restriction action when such a compulsory exit restriction action is being continuously performed for a period longer than a predetermined period.
    Type: Application
    Filed: January 14, 2022
    Publication date: May 5, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuto KUMASHIRO, Noriyuki SAITOH, Iwao IZUMIKAWA
  • Patent number: 11299094
    Abstract: A vehicle exit assist apparatus includes: a right BSM ECU configured to issue a warning when a moving object approaching an own vehicle is detected; and a message uttering device including an amplifier and a speaker configured to operate by electric power supplied from an in-vehicle battery, and being configured to utter a sound message in accordance with control of the right BSM ECU. The right BSM ECU is configured to supply electric power to the message uttering device when a generator configured to charge the in-vehicle battery is operating, and bring the power supply to the message uttering device to an OFF state when a predetermined condition is satisfied after the generator is stopped.
    Type: Grant
    Filed: March 4, 2021
    Date of Patent: April 12, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Iwao Izumikawa, Koji Takeuchi, Masaho Ishida
  • Publication number: 20220080886
    Abstract: An alighting support device performs warning to notify a vehicle occupant of presence of a moving body having a possibility to come into contact with a right door or a left door of the vehicle. The alighting support device performs the warning when a warning condition is satisfied. When the right door or the left door is opened or is about to be opened while the moving body is moving in a right warning area set on the right side of the vehicle or a left warning area set on the left side of the vehicle, the alighting support device determines that the warning condition is satisfied. When the moving body enters the right warning area or the left warning area with the right door or the left door being open to a predetermined degree or more, the alighting support device determines that the warning condition is not satisfied.
    Type: Application
    Filed: June 25, 2021
    Publication date: March 17, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koji TAKEUCHI, Noriyuki SAITOH, Iwao IZUMIKAWA, Junya FUKUTA
  • Patent number: 11273761
    Abstract: A vehicle exit assist apparatus with improved security and power consumption includes an exit restriction part including a warning and/or door opening restriction when an occupant's exit action is detected and an obstacle around a self-vehicle is detected by an obstacle detection part. The obstacle detection part and the exit restriction part are started when the exit action is detected in a situation where the obstacle detection part and/or the exit restriction part are not working. The obstacle detection part may transmit a signal corresponding to its operating state after starting-up and the exit restriction part may be forced to perform the exit restriction action when the obstacle detection part is not operating normally based on the signal. It may be configured to cancel the exit restriction action when such a compulsory exit restriction action is being continuously performed for a period longer than a predetermined period.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: March 15, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takuto Kumashiro, Noriyuki Saitoh, Iwao Izumikawa
  • Publication number: 20210362709
    Abstract: A control ECU (10) executes left-side preliminary control for preventing an occupant from performing an operation of opening a left door when an object is predicted to reach a left virtual line segment (LVL) based on a position of the object. The control ECU executes right-side preliminary control for preventing the occupant from performing an operation of opening a right door when the object is predicted to reach a right virtual line segment (RVL) based on the position of the object. Further, the control ECU executes both-side preliminary control for preventing the occupant from performing an operation of opening both of the left door and the right door when the object is predicted to reach a central virtual line segment (CVL).
    Type: Application
    Filed: August 5, 2021
    Publication date: November 25, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noriyuki Saito, Takuya Kaminade, Iwao Izumikawa
  • Publication number: 20210327274
    Abstract: A driving assistance device includes an object detection unit, an acquisition unit acquiring a first value of a relative speed of an approaching object with respect to an own vehicle, a ghost determination unit, and an assistance determination unit. The ghost determination unit calculates a second value of the relative speed of the approaching object in accordance with a speed of the own vehicle and a value of the relative speed of a following object located between the own vehicle and the approaching object; calculates, as a speed difference, an absolute difference between the first value of the relative speed and the second value of the relative speed; calculates, as an azimuth difference, an absolute difference between an azimuth of the following object and an azimuth of the approaching object; and determines whether the approaching object is the ghost target based on the speed difference and the azimuth difference.
    Type: Application
    Filed: June 24, 2021
    Publication date: October 21, 2021
    Inventors: Hiroki HORI, Takayuki KITAMURA, Koji TAKEUCHI, Iwao IZUMIKAWA, Hiroki SHIMAZU
  • Publication number: 20210300243
    Abstract: In a driving assistance apparatus, an area setter is configured to set a warning area on at least one of a left rear side and a right rear side of a subject vehicle. A notifier is configured to provide a notification in response to an object detector detecting an object in the warning area. A determiner is configured to determine initiation and completion of a turn at an intersection during turning of the subject vehicle at the intersection. An area changer is configured to, in response to the determiner determining the initiation of the turn, reduce the warning area in a direction approaching the subject vehicle, and in response to the determiner determining the completion of the turn, expand the reduced warning area according to a traveling state of the subject vehicle after the completion of the turn.
    Type: Application
    Filed: April 23, 2021
    Publication date: September 30, 2021
    Inventors: Naotsugu SHIMIZU, Koji TAKEUCHI, Iwao IZUMIKAWA, Masaki KAWAKAMI
  • Publication number: 20210284065
    Abstract: A vehicle exit assist apparatus includes: a right BSM ECU configured to issue a warning when a moving object approaching an own vehicle is detected; and a message uttering device including an amplifier and a speaker configured to operate by electric power supplied from an in-vehicle battery, and being configured to utter a sound message in accordance with control of the right BSM ECU. The right BSM ECU is configured to supply electric power to the message uttering device when a generator configured to charge the in-vehicle battery is operating, and bring the power supply to the message uttering device to an OFF state when a predetermined condition is satisfied after the generator is stopped.
    Type: Application
    Filed: March 4, 2021
    Publication date: September 16, 2021
    Inventors: Iwao Izumikawa, Koji Takeuchi, Masaho Ishida
  • Patent number: 11091159
    Abstract: A control ECU (10) executes left-side preliminary control for preventing an occupant from performing an operation of opening a left door when an object is predicted to reach a left virtual line segment (LVL) based on a position of the object. The control ECU executes right-side preliminary control for preventing the occupant from performing an operation of opening a right door when the object is predicted to reach a right virtual line segment (RVL) based on the position of the object. Further, the control ECU executes both-side preliminary control for preventing the occupant from performing an operation of opening both of the left door and the right door when the object is predicted to reach a central virtual line segment (CVL).
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 17, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Noriyuki Saito, Takuya Kaminade, Iwao Izumikawa
  • Patent number: 10839692
    Abstract: A driving supporter includes: a departure-possibility-value obtainer that obtains a departure-possibility value; a relative positional relationship obtainer that detects another vehicle located diagonally at a rear of an own vehicle and obtain a relative positional relationship between them; a support executer that executes a lane-departure prevention support; and a support controller that controls the support executer to execute the lane-departure prevention support when the departure-possibility value is greater than or equal to a threshold value. The support controller includes a threshold-value determiner that determines the threshold value to a smaller value when the relative positional relationship is a set relationship than when the relative positional relationship is not the set relationship. The set relationship is a relationship in which there is a possibility of collision of the own vehicle with the other vehicle in an event of departure of the own vehicle from a lane.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: November 17, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshihiro Kawaguchi, Iwao Izumikawa, Yuji Okuda, Kazuma Hashimoto
  • Publication number: 20200148108
    Abstract: A vehicle exit assist apparatus with improved security and power consumption includes an exit restriction part including a warning and/or door opening restriction when an occupant's exit action is detected and an obstacle around a self-vehicle is detected by an obstacle detection part. The obstacle detection part and the exit restriction part are started when the exit action is detected in a situation where the obstacle detection part and/or the exit restriction part are not working. The obstacle detection part may transmit a signal corresponding to its operating state after starting-up and the exit restriction part may be forced to perform the exit restriction action when the obstacle detection part is not operating normally based on the signal. It may be configured to cancel the exit restriction action when such a compulsory exit restriction action is being continuously performed for a period longer than a predetermined period.
    Type: Application
    Filed: August 22, 2019
    Publication date: May 14, 2020
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Takuto Kumashiro, Noriyuki Saitoh, Iwao Izumikawa
  • Publication number: 20180158338
    Abstract: A driving supporter includes: a departure-possibility-value obtainer that obtains a departure-possibility value; a relative positional relationship obtainer that detects another vehicle located diagonally at a rear of an own vehicle and obtain a relative positional relationship between them; a support executer that executes a lane-departure prevention support; and a support controller that controls the support executer to execute the lane-departure prevention support when the departure-possibility value is greater than or equal to a threshold value. The support controller includes a threshold-value determiner that determines the threshold value to a smaller value when the relative positional relationship is a set relationship than when the relative positional relationship is not the set relationship. The set relationship is a relationship in which there is a possibility of collision of the own vehicle with the other vehicle in an event of departure of the own vehicle from a lane.
    Type: Application
    Filed: October 11, 2017
    Publication date: June 7, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshihiro KAWAGUCHI, Iwao IZUMIKAWA, Yuji OKUDA, Kazuma HASHIMOTO