Patents by Inventor Yutaka TOOYAMA

Yutaka TOOYAMA 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).

  • Malfunction location detection device for automatic transmission, and automatic transmission provided with same
    Patent number: 11536365
    Abstract: A malfunction part sensing device for an automatic transmission for a vehicle which is arranged to attain a plurality of shift stages by selectively engaging a plurality of frictional engagement elements, the malfunction part sensing device includes: a shift stage monitoring section configured to monitor the shift stages before and after the shift of the automatic transmission; a malfunction sensing section configured to sense the malfunction mode from a behavior of the vehicle which is generated in accordance with the malfunction; and a malfunction part limiting section configured to limit the one of the frictional engagement elements in which the malfunction is generated, based on the malfunction mode and a shift manner by a combination of the shift stages before and after the shift.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: December 27, 2022
    Assignees: JATCO LTD, NISSAN MOTOR CO., LTD.
    Inventors: Yutaka Tooyama, Fumitaka Nagashima, Takateru Kawaguchi, Hideharu Yamamoto, Masahiro Hamano
  • MALFUNCTION LOCATION DETECTION DEVICE FOR AUTOMATIC TRANSMISSION, AND AUTOMATIC TRANSMISSION PROVIDED WITH SAME
    Publication number: 20190093761
    Abstract: A malfunction part sensing device for an automatic transmission for a vehicle which is arranged to attain a plurality of shift stages by selectively engaging a plurality of frictional engagement elements, the malfunction part sensing device includes: a shift stage monitoring section configured to monitor the shift stages before and after the shift of the automatic transmission; a malfunction sensing section configured to sense the malfunction mode from a behavior of the vehicle which is generated in accordance with the malfunction; and a malfunction part limiting section configured to limit the one of the frictional engagement elements in which the malfunction is generated, based on the malfunction mode and a shift manner by a combination of the shift stages before and after the shift.
    Type: Application
    Filed: February 10, 2017
    Publication date: March 28, 2019
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Yutaka TOOYAMA, Fumitaka NAGASHIMA, Takateru KAWAGUCHI, Hideharu YAMAMOTO, Masahiro HAMANO