Patents by Inventor Michiharu Yokoyama

Michiharu Yokoyama 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).

  • MULTIBAND ANTENNA
    Publication number: 20150311589
    Abstract: Two high frequency antennas are provided in a multilayer substrate. Each high frequency antenna is configured of a radiation element, a high frequency power supply line, and a high frequency power supply unit. A low frequency antenna is configured of a series radiation element, a low frequency power supply line, and a lower frequency power supply unit. The series radiation element is formed of two radiation elements connected by a radiation element connection line. One end side of the series radiation element is connected to the low frequency power supply unit via the low frequency power supply line. Open stubs to block transmission of a high frequency signal (SH) are connected to the radiation element connection line and the low frequency power supply line. Short stubs to block transmission of a low frequency signal (SL) are connected to the high frequency power supply lines.
    Type: Application
    Filed: June 10, 2015
    Publication date: October 29, 2015
    Inventors: Michiharu Yokoyama, Kaoru Sudo, Ryuken Mizunuma, Masayuki Nakajima
  • Wireless transmission/reception module
    Patent number: D757693
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: May 31, 2016
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kaoru Sudo, Michiharu Yokoyama, Hideki Ueda, Ryuken Mizunuma, Masayuki Nakajima