Patents by Inventor Akitsugu Shigino

Akitsugu Shigino 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).

  • Noncontact charging device, charger, cordless electric equipment, and noncontact charger
    Patent number: 5929598
    Abstract: Capacitors are connected in parallel to a primary side induction coil in a charger 1 and a secondary side induction coil in a cordless equipment (handset unit) respectively, and LC parallel resonance circuits are formed in the charger and the cordless equipment respectively with this parallel connection. Each of the primary side induction coil and secondary side induction coil is formed with a sheet coil, and the sheet coils are arranged and fixed in the charger and the cordless equipment respectively so that the sheet coils face to each other with a prespecified gap in the charging state where the cordless equipment has been set in the charger.
    Type: Grant
    Filed: July 3, 1997
    Date of Patent: July 27, 1999
    Assignee: Uniden Corporation
    Inventors: Hidekazu Nakama, Toshiaki Fujikura, Akitsugu Shigino