Patents by Inventor Taro Kassai

Taro Kassai 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: 11237568
    Abstract: An autonomous travel cart includes a control device controlling the autonomous travel cart to travel autonomously based on detection information from an obstacle detection device. The control device includes a wall length detection unit that detects wall lengths of wall portions from the autonomous travel cart to an exit end of the narrow path, a wall length determination unit that determines whether or not the wall lengths are greater than a predetermined wall length threshold, and a narrow path travel control unit that controls the autonomous travel cart to travel at a normal speed when the wall lengths are greater than the predetermined wall length threshold, and to decelerate and travel at a predetermined reduced speed when at least one of the wall lengths detected by the wall length detection unit is equal to or less than the predetermined wall length threshold.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: February 1, 2022
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi Nakashima, Taro Kassai
  • Patent number: 11209829
    Abstract: A tracking vehicle control system includes a drive section, a drive control section, a recognition section, a first judgement section, and a second judgement section. After the drive control section controls the drive section to get a tracking vehicle to track a tracking object according to a result of recognition of the tracking object performed by the recognition section, the drive control section controls the drive section to stop the tracking vehicle from tracking the tracking object when the first judgement section judges that the tracking object has started access to the tracking vehicle. The drive control section controls the drive section to get the tracking vehicle to restart tracking the tracking object when the second judgement section judges that the tracking object has ended access to the tracking vehicle. The recognition section recognizes the tracking object even when tracking of the tracking object by the tracking vehicle is suspended.
    Type: Grant
    Filed: May 31, 2019
    Date of Patent: December 28, 2021
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Satoshi Seki, Taro Kassai
  • Publication number: 20200081440
    Abstract: An autonomous travel cart includes a control device that determines whether or not an obstacle detected by an ultrasonic obstacle detection device is detected by a laser obstacle detection device based on a detection information from the laser obstacle detection device and a distance information from the ultrasonic obstacle detection device. The control device executes a travel control based on the detection information when it is determined the obstacle detected by the ultrasonic obstacle detection device is detected by the laser obstacle detection device, and executes the travel control based on the distance information when it is determined that the obstacle detected by the ultrasonic obstacle detection device is not detected by the laser obstacle detection device.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 12, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Katsuhiko SUZUKI, Taro KASSAI
  • Publication number: 20200081437
    Abstract: An autonomous travel cart includes a control device controlling the autonomous travel cart to travel autonomously based on detection information from an obstacle detection device. The control device includes a wall length detection unit that detects wall lengths of wall portions from the autonomous travel cart to an exit end of the narrow path, a wall length determination unit that determines whether or not the wall lengths are greater than a predetermined wall length threshold, and a narrow path travel control unit that controls the autonomous travel cart to travel at a normal speed when the wall lengths are greater than the predetermined wall length threshold, and to decelerate and travel at a predetermined reduced speed when at least one of the wall lengths detected by the wall length detection unit is equal to or less than the predetermined wall length threshold.
    Type: Application
    Filed: September 4, 2019
    Publication date: March 12, 2020
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Takashi NAKASHIMA, Taro KASSAI
  • Publication number: 20190369630
    Abstract: A tracking vehicle control system includes a drive section, a drive control section, a recognition section, a first judgement section, and a second judgement section. After the drive control section controls the drive section to get a tracking vehicle to track a tracking object according to a result of recognition of the tracking object performed by the recognition section, the drive control section controls the drive section to stop the tracking vehicle from tracking the tracking object when the first judgement section judges that the tracking object has started access to the tracking vehicle. The drive control section controls the drive section to get the tracking vehicle to restart tracking the tracking object when the second judgement section judges that the tracking object has ended access to the tracking vehicle. The recognition section recognizes the tracking object even when tracking of the tracking object by the tracking vehicle is suspended.
    Type: Application
    Filed: May 31, 2019
    Publication date: December 5, 2019
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Satoshi Seki, Taro Kassai