Patents by Inventor Tsuyoshi Ehama

Tsuyoshi Ehama 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: 10377197
    Abstract: A towing vehicle includes a vehicle body, a coupling device provided in a rear portion of the vehicle body, and an inching control switch located at a position in the rear portion of the vehicle body shifted from a center of the rear portion of the vehicle body in a vehicle width direction. The vehicle body has a mount surface provided adjacent to a rear corner thereof. The mount surface is exposed to the outside and the inching control switch projects from the mount surface to the outside of the vehicle. The mount surface extends at an angle with respect to the vehicle width direction. A part of the mount surface that is closest to the center of the rear portion in the vehicle width direction is located rearward of the other part of the mount surface that is most distant from the center of the rear portion.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: August 13, 2019
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Fumihiro Fukatsu, Tsuyoshi Ehama
  • Publication number: 20170313142
    Abstract: A towing vehicle includes a vehicle body, a coupling device provided in a rear portion of the vehicle body, and an inching control switch located at a position in the rear portion of the vehicle body shifted from a center of the rear portion of the vehicle body in a vehicle width direction. The vehicle body has a mount surface provided adjacent to a rear corner thereof. The mount surface is exposed to the outside and the inching control switch projects from the mount surface to the outside of the vehicle. The mount surface extends at an angle with respect to the vehicle width direction. A part of the mount surface that is closest to the center of the rear portion in the vehicle width direction is located rearward of the other part of the mount surface that is most distant from the center of the rear portion.
    Type: Application
    Filed: April 18, 2017
    Publication date: November 2, 2017
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Fumihiro FUKATSU, Tsuyoshi EHAMA
  • Patent number: 8260501
    Abstract: An awake state estimation portion calculates an average steering angle, an average steering angular speed and a corrective steering angle on the basis of the steering angle acquired from a steering angle detection portion. The awake state estimation portion acquires the traveling speed of the vehicle from a vehicle speed detection portion. The awake state estimation portion corrects the calculated corrective steering angle by a correction value commensurate with the type of the traveling path on which the vehicle is traveling, and estimates the degree of the awake state of the driver on the basis of the post-correction corrective steering angle. Besides, the awake state estimation portion specifically determines the correction value commensurate with the type of the traveling path on which the vehicle is traveling, on the basis of at least one of the steering angle, the average steering angular speed and the traveling speed.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: September 4, 2012
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Akira Nakagoshi, Kenji Kimura, Tsuyoshi Ehama
  • Publication number: 20100182750
    Abstract: An industrial vehicle has a vehicle body and an electric component unit. The electric component unit has a base member fixed to the vehicle body, a fan fixed to the base member for ventilating, at least one electric device fixed to the base member and at least one radiator fixed to the electric device. The base member has an opening provided in the center of the base member and a plurality of ducts. The ducts and the electric device cooperate to form a ventilating passage. The ventilating passage has a plurality of separate passages communicated with the opening and the radiator is disposed in each of the separate passages.
    Type: Application
    Filed: January 15, 2010
    Publication date: July 22, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventor: Tsuyoshi EHAMA
  • Publication number: 20090048737
    Abstract: An awake state estimation portion calculates an average steering angle, an average steering angular speed and a corrective steering angle on the basis of the steering angle acquired from a steering angle detection portion. The awake state estimation portion acquires the traveling speed of the vehicle from a vehicle speed detection portion. The awake state estimation portion corrects the calculated corrective steering angle by a correction value commensurate with the type of the traveling path on which the vehicle is traveling, and estimates the degree of the awake state of the driver on the basis of the post-correction corrective steering angle. Besides, the awake state estimation portion specifically determines the correction value commensurate with the type of the traveling path on which the vehicle is traveling, on the basis of at least one of the steering angle, the average steering angular speed and the traveling speed.
    Type: Application
    Filed: September 30, 2008
    Publication date: February 19, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akira NAKAGOSHI, Kenji Kimura, Tsuyoshi Ehama