Patents by Inventor Keinichi Nakata

Keinichi Nakata 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).

  • NON-CONTACT POWER TRANSMISSION APPARATUS AND DESIGN METHOD
    Publication number: 20110227421
    Abstract: A non-contact power transmission apparatus is disclosed. The non-contact power transmission apparatus includes an alternating-current power source and a resonant system. The resonant system includes a primary coil connected to the alternating-current power source, a primary-side resonance coil, a secondary-side resonance coil, and a secondary coil is connected to a load. The apparatus also has a first capacitor and a second capacitor. A first resonant frequency, which is a resonant frequency of the primary-side resonance coil and the first capacitor, and a second resonant frequency, which is a resonant frequency of the secondary-side resonance coil and the second capacitor, are set to be equal to each other. The frequency of an alternating voltage of the alternating-current power source is set to match with the first resonant frequency and the second resonant frequency.
    Type: Application
    Filed: November 27, 2009
    Publication date: September 22, 2011
    Applicants: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shimpei Sakoda, Sadanori Suzuki, Kazuyoshi Takada, Keinichi Nakata, Yukihiro Yamamoto, Shinji Ichikawa, Tetsuhiro Ishikawa