Patents by Inventor lsao YONEOKA

lsao YONEOKA 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).

  • LIGHT SOURCE CONTROL DEVICE AND LIGHT SOURCE CONTROL METHOD
    Publication number: 20150102726
    Abstract: A microcomputer of a light source control device specifies an LED belonging to LEDs and subjected to a short-circuit failure based on a result of determination by a short-circuit failure detecting circuit and current amounts sensed by current sensing circuits respectively. The microcomputer makes corresponding one of switching elements interrupt supply of a current to the specified LED. The microcomputer makes a constant current circuit supply an LED not specified with a current not exceeding a current responsive to the number of such LEDs not specified.
    Type: Application
    Filed: September 18, 2014
    Publication date: April 16, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: lsao YONEOKA, Yoshinori ASAMURA, Zenkou YAMAMOTO, Haruhisa INOUE