Patents by Inventor Tatsurou Kameyama

Tatsurou Kameyama 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).

  • Control device of automatic transmission, and control method of automatic transmission
    Patent number: 8185284
    Abstract: ECU executes in-neutral control in a case where a first clutch is brought into a half-engagement state on the basis of execution of neutral control. During the in-neutral control, ECU detects engine speed and input-shaft rotating speed, and detects differential rotation before an oil pressure change. Subsequently, in a case where the differential rotation before an oil pressure change detected by ECU has exceeded a first differential rotation threshold value, the operating oil pressure for a hydraulic servo is reduced by the first oil pressure.
    Type: Grant
    Filed: July 21, 2008
    Date of Patent: May 22, 2012
    Assignee: Aisin AW Co. Ltd.
    Inventors: Masakatsu Iwase, Hiroshi Tsutsui, Shingo Kodama, Yongsong Kang, Tatsurou Kameyama
  • CONTROL DEVICE OF AUTOMATIC TRANSMISSION, AND CONTROL METHOD OF AUTOMATIC TRANSMISSION
    Publication number: 20090062997
    Abstract: ECU executes in-neutral control in a case where a first clutch is brought into a half-engagement state on the basis of execution of neutral control. During the in-neutral control, ECU detects engine speed and input-shaft rotating speed, and detects differential rotation before an oil pressure change. Subsequently, in a case where the differential rotation before an oil pressure change detected by ECU has exceeded a first differential rotation threshold value, the operating oil pressure for a hydraulic servo is reduced by the first oil pressure.
    Type: Application
    Filed: July 21, 2008
    Publication date: March 5, 2009
    Applicant: AISIN AW CO., LTD.
    Inventors: Masakatsu Iwase, Hiroshi Tsutsui, Shingo Kodama, Yongsong Kang, Tatsurou Kameyama