Patents by Inventor Hiroki Kan

Hiroki Kan 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).

  • High frequency device mounting substrate and communications apparatus
    Patent number: 7477118
    Abstract: Terminal electrodes 9 for carrying a high frequency device 3 are formed on a surface of a circuit board having its reverse surface covered with a reverse surface conductor layer 6, and a plurality of signal lines 2 for exchanging a signal between the high frequency device 3 and an external circuit are formed thereon. The terminal electrode 9 is arranged at the center of the circuit board, and the signal lines 2 radially extends from the terminal electrode 9. Electromagnetic interference between the signal lines 2 can be reduced, so that out-of-band attenuation characteristics and isolation characteristics can be satisfactorily exhibited in a case where the high frequency device 3 is a duplexer.
    Type: Grant
    Filed: January 19, 2006
    Date of Patent: January 13, 2009
    Assignee: Kyocera Corporation
    Inventors: Takanori Ikuta, Wataru Koga, Hiroki Kan, Yuuko Yokota
  • High frequency device mounting substrate and communications apparatus
    Publication number: 20070069834
    Abstract: Terminal electrodes 9 for carrying a high frequency device 3 are formed on a surface of a circuit board having its reverse surface covered with a reverse surface conductor layer 6, and a plurality of signal lines 2 for exchanging a signal between the high frequency device 3 and an external circuit are formed thereon. The terminal electrode 9 is arranged at the center of the circuit board, and the signal lines 2 radially extends from the terminal electrode 9. Electromagnetic interference between the signal lines 2 can be reduced, so that out-of-band attenuation characteristics and isolation characteristics can be satisfactorily exhibited in a case where the high frequency device 3 is a duplexer.
    Type: Application
    Filed: January 19, 2006
    Publication date: March 29, 2007
    Inventors: Takanori Ikuta, Wataru Koga, Hiroki Kan, Yuuko Yokota