Patents by Inventor Kohei Onizuka

Kohei Onizuka 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).

  • Power supply circuit capable of rapidly changing output voltages
    Publication number: 20060038544
    Abstract: A voltage control circuit is connected to a voltage source. The voltage control circuit changes voltages of n different values and outputs them to an output node of the voltage control circuit according to control signals. A first switch element is connected between the output node of the voltage control circuit and a reference voltage node, and a second switch element is connected between the output node of the voltage control circuit and an output node of the voltage source. The first switch element is controlled so as to be conductive when the voltage control circuit changes the voltage of the output node from a first voltage to a second voltage that is lower than the first voltage, and the second switch element is controlled so as to be conductive when the voltage control circuit changes the voltage of the output node from a second voltage to a first voltage.
    Type: Application
    Filed: August 16, 2005
    Publication date: February 23, 2006
    Applicant: Semiconductor Technology Academic Research Center
    Inventors: Takayasu Sakurai, Hiroshi Kawaguchi, Kohei Onizuka