Patents by Inventor Tsubura Aihara

Tsubura Aihara 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).

  • Gear shift shock evaluation apparatus and evaluation method of the same
    Patent number: 8973432
    Abstract: An evaluation unit includes a front-rear acceleration sensor and an up-down acceleration sensor. The evaluation unit calculates a length of a track obtained by plotting detected front-rear and up-down accelerations on a three-dimensional space along a time axis within a period from gear shift start of an automatic transmission to gear shift end, calculate a track length per unit time by dividing the length of the track by a time interval from the gear shift start to the gear shift end, and evaluates that a gear shift shock is larger as the track length per unit time is longer.
    Type: Grant
    Filed: October 18, 2011
    Date of Patent: March 10, 2015
    Assignees: JATCO Ltd, Nissan Motor Co., Ltd.
    Inventors: Mitsuhiro Kishino, Tsubura Aihara, Hiroshi Sugiyama
  • GEAR SHIFT SHOCK EVALUATION APPARATUS AND EVALUATION METHOD OF THE SAME
    Publication number: 20130319099
    Abstract: An evaluation unit includes a front-rear acceleration sensor and an up-down acceleration sensor. The evaluation unit calculates a length of a track obtained by plotting detected front-rear and up-down accelerations on a three-dimensional space along a time axis within a period from gear shift start of an automatic transmission to gear shift end, calculate a track length per unit time by dividing the length of the track by a time interval from the gear shift start to the gear shift end, and evaluates that a gear shift shock is larger as the track length per unit time is longer.
    Type: Application
    Filed: October 18, 2011
    Publication date: December 5, 2013
    Applicant: JATCO LTD
    Inventors: Mitsuhiro Kishino, Tsubura Aihara, Hiroshi Sugiyama