Patents by Inventor Hajime Simada

Hajime Simada 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).

  • Mobile communication device
    Patent number: 8041295
    Abstract: A mobile communication device capable of reducing a size of a proximity noncontact communication antenna and improving a proximity noncontact communication distance is provided. In a mobile communication device having both functions of a card function and a reader/writer function as a proximity noncontact communication and equipped with at least two proximity noncontact communication antennas or more for respective functions, a switching controlling portion 4 and a proximity noncontact communication controlling portion 5 for switching tuning circuits 3A, 3B of antennas 2A, 2B based on external equipments (an external proximity noncontact communication reader/writer and an external proximity noncontact communication card) that perform the proximity noncontact communication are provided.
    Type: Grant
    Filed: April 7, 2006
    Date of Patent: October 18, 2011
    Assignee: Panasonic Corporation
    Inventor: Hajime Simada
  • MOBILE COMMUNICATION DEVICE
    Publication number: 20090061768
    Abstract: A mobile communication device capable of reducing a size of a proximity noncontact communication antenna and improving a proximity noncontact communication distance is provided. In a mobile communication device having both functions of a card function and a reader/writer function as a proximity noncontact communication and equipped with at least two proximity noncontact communication antennas or more for respective functions, a switching controlling portion 4 and a proximity noncontact communication controlling portion 5 for switching tuning circuits 3A, 3B of antennas 2A, 2B based on external equipments (an external proximity noncontact communication reader/writer and an external proximity noncontact communication card) that perform the proximity noncontact communication are provided.
    Type: Application
    Filed: April 7, 2006
    Publication date: March 5, 2009
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventor: Hajime Simada