Patents by Inventor Yutaka Toga

Yutaka Toga 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).

  • Contactless rechargeable secondary battery and contactless battery charger
    Patent number: 9438066
    Abstract: A contactless rechargeable alkaline secondary battery includes an alkaline secondary battery; a power receiver circuit having receiver coils and a resonance capacitor and adapted to receive AC power via magnetic field resonance, the resonance capacitor connected with the receiver coils L1 to L4; a rectifier circuit adapted to rectify the AC power; a current limiter circuit adapted to limit a charging current flowing from the rectifier circuit to the alkaline secondary battery; and an outer casing configured to be cylindrical in shape, adapted to house the alkaline secondary battery, and provided with a positive terminal and a negative terminal, the positive terminal being connected with a positive pole of the alkaline secondary battery and the negative terminal being connected with a negative pole of the alkaline secondary battery, wherein the power receiver coils are shaped like a sheet of an electric wire wound along a plane.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: September 6, 2016
    Assignee: FDK CORPORATION
    Inventors: Tetsuya Suzuki, Hidetaka Yoshihashi, Hirohito Teraoka, Yutaka Toga, Katsuki Tsuchiya
  • Contactless Rechargeable Secondary Battery and Contactless Battery Charger
    Publication number: 20140176067
    Abstract: A contactless rechargeable alkaline secondary battery includes an alkaline secondary battery; a power receiver circuit having receiver coils and a resonance capacitor and adapted to receive AC power via magnetic field resonance, the resonance capacitor connected with the receiver coils L1 to L4; a rectifier circuit adapted to rectify the AC power; a current limiter circuit adapted to limit a charging current flowing from the rectifier circuit to the alkaline secondary battery; and an outer casing configured to be cylindrical in shape, adapted to house the alkaline secondary battery, and provided with a positive terminal and a negative terminal, the positive terminal being connected with a positive pole of the alkaline secondary battery and the negative terminal being connected with a negative pole of the alkaline secondary battery, wherein the power receiver coils are shaped like a sheet of an electric wire wound along a plane.
    Type: Application
    Filed: July 20, 2012
    Publication date: June 26, 2014
    Applicants: FDK TWICELL CO., LTD., FDK CORPORATION
    Inventors: Tetsuya Suzuki, Hidetaka Yoshihashi, Hirohito Teraoka, Yutaka Toga, Katsuki Tsuchiya