Patents by Inventor Masao Ishizu

Masao Ishizu 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).

  • Charger for mobile phone and operation method for the same and charging apparatus for mobile phone and charging method for the same
    Publication number: 20040155631
    Abstract: A charger for mobile phone provided with a power input portion, a switching power source portion to which electric power is supplied by the power input portion, a control portion having a micro-computer logic circuit and supplied with electric energy by the switching power source portion, a capacitor portion having plural electric double-layer capacitors to accumulate the electric energy supplied by the control portion, a feedback circuit transmitting charging state of the electric double-layer capacitors to the control portion, and an output portion to supply the electric energy accumulated in the electric double-layer capacitors to a battery of a mobile phone with constant voltage.
    Type: Application
    Filed: February 4, 2004
    Publication date: August 12, 2004
    Applicants: SOJI TERAKAWA, MASAO ISHIZU
    Inventor: Masao Ishizu