Patents by Inventor Syuji Mayama

Syuji Mayama 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).

  • Semiconductor circuit components for supplying power to a load
    Patent number: 6778001
    Abstract: A semiconductor circuit component has: an MOS-FET 12 which is a load-control semiconductor switching device with a control terminal; a control signal supply circuit 14 including a charging pump circuit for supplying a control signal to a gate G of the MOS-FET 12 to drive the MOS-FET 12; and a drive control circuit 16 for performing drive control only when a switch unit SW externally provided is turned on, so that a power supply voltage is supplied from a battery power supply to the control signal supply circuit 14 to thereby make the control signal supply circuit 14 output the control signal.
    Type: Grant
    Filed: January 30, 2002
    Date of Patent: August 17, 2004
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Syuji Mayama, Keizou Ikeda
  • Method of illuminating incandescent lamp, and circuit for illuminating the same
    Patent number: 6518713
    Abstract: An incandescent lamp 12 and a MOSFET 14 are connected in series with a power supply. A capacitor 164 is interposed between the gate G of the MOSFET 14 and a reference potential. Electric charges are gradually stored in the capacitor 164, thereby gradually increasing the voltage level of the control signal to be supplied to the gate G.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: February 11, 2003
    Assignees: Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventor: Syuji Mayama
  • Semiconductor circuit components
    Publication number: 20020123186
    Abstract: A semiconductor circuit component has: an MOS-FET 12 which is a load-control semiconductor switching device with a control terminal; a control signal supply circuit 14 including a charging pump circuit for supplying a control signal to a gate G of the MOS-FET 12 to drive the MOS-FET 12; and a drive control circuit 16 for performing drive control only when a switch unit SW externally provided is turned on, so that a power supply voltage is supplied from a battery power supply to the control signal supply circuit 14 to thereby make the control signal supply circuit 14 output the control signal.
    Type: Application
    Filed: January 30, 2002
    Publication date: September 5, 2002
    Applicant: AUTONETWORKS TECHNOLOGIES, LTD.
    Inventors: Syuji Mayama, Keizou Ikeda
  • Method of illuminating incandescent lamp, and circuit for illuminating the same
    Publication number: 20020093293
    Abstract: An incandescent lamp 12 and a MOSFET 14 are connected in series with a power supply. A capacitor 164 is interposed between the gate G of the MOSFET 14 and the capacitor 164. Electric charges are gradually stored in the capacitor 164, thereby gradually increasing the voltage level of the control signal to be supplied to the gate G.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 18, 2002
    Applicant: AUTONETWORKS TECHNOLOGIES, LTD.
    Inventor: Syuji Mayama