Patents by Inventor Tetsuya HISHIKAWA

Tetsuya HISHIKAWA 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).

  • Wireless communication device and transmission-power control device
    Patent number: 9642100
    Abstract: A wireless communication device has an aim of specifying, when transmitting data to another communication device, an antenna among antennas that can transmit data at a low transmission power. The wireless communication device switches between a first antenna and a second antenna upon transmission of a request signal to the other communication device, and increases or decreases transmission power for transmitting the request signal when switching between the first antenna and the second antenna.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: May 2, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Naotake Yamamoto, Yoichi Masuda, Tetsuya Hishikawa
  • WIRELESS COMMUNICATION DEVICE AND TRANSMISSION-POWER CONTROL DEVICE
    Publication number: 20160044612
    Abstract: A wireless communication device has an aim of specifying, when transmitting data to another communication device, an antenna among antennas that can transmit data at a low transmission power. The wireless communication device switches between a first antenna and a second antenna upon transmission of a request signal to the other communication device, and increases or decreases transmission power for transmitting the request signal when switching between the first antenna and the second antenna.
    Type: Application
    Filed: February 21, 2014
    Publication date: February 11, 2016
    Inventors: Naotake YAMAMOTO, Yoichi MASUDA, Tetsuya HISHIKAWA