Patents by Inventor Yukihiro YANAGITA

Yukihiro YANAGITA 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).

  • Soft-switching control device and method of manufacturing the same
    Patent number: 8912774
    Abstract: Soft-switching is performed to switch a switching state to an ON state by controlling a delay time of a timing at which a main switch switches to an ON state relative to a timing at which a sub-switch switches to an ON state. Controllability of soft-switching decreases as a result of variations in time difference of a command for switching the main switch to the ON state and the actual switching of the switching state. To set a delay time suitable for performing soft-switching based on the variations in time difference, an EEPROM is provided that stores therein correction data for the delay time. The delay time of the timing of the command for switching the main switch to the ON state relative to the timing of the command for switching the sub-switch to the ON state is set based on the correction data.
    Type: Grant
    Filed: July 12, 2011
    Date of Patent: December 16, 2014
    Assignee: Denso Corporation
    Inventor: Yukihiro Yanagita
  • SOFT-SWITCHING CONTROL DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20120020120
    Abstract: Soft-switching is performed to switch a switching state to an ON state by controlling a delay time of a timing at which a main switch switches to an ON state relative to a timing at which a sub-switch switches to an ON state. Controllability of soft-switching decreases as a result of variations in time difference of a command for switching the main switch to the ON state and the actual switching of the switching state. To set a delay time suitable for performing soft-switching based on the variations in time difference, an EEPROM is provided that stores therein correction data for the delay time. The delay time of the timing of the command for switching the main switch to the ON state relative to the timing of the command for switching the sub-switch to the ON state is set based on the correction data.
    Type: Application
    Filed: July 12, 2011
    Publication date: January 26, 2012
    Applicant: DENSO CORPORATION
    Inventor: Yukihiro YANAGITA