Patents by Inventor Masato Soumiya

Masato Soumiya 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).

  • Ignition device for an internal combustion engine
    Patent number: 4702221
    Abstract: In an ignition device for an internal combustion engine, the ignition device comprises: three closed circuits including first, second and third closed circuits, each circuit having at least a DC power source, a primary coil and a switching transistor; an ignition coil having three primary coils and a secondary coil; an ignition command signal generating means producing first and second ignition command signals, the first ignition command signal being applied to the third closed circuit and the second ignition command signal being applied to the control circuit; and a control circuit for causing the first and second switching elements to push-pull operate based on the input timing of the second ignition command signal.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: October 27, 1987
    Assignees: Nippon Soken, Inc., Nippondenso Co., Ltd.
    Inventors: Norihito Tokura, Hisasi Kawai, Masahiro Goto, Seiji Morino, Masato Soumiya