Patents by Inventor Masami Akiyoshi

Masami Akiyoshi 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).

  • Accurate position measuring system
    Patent number: 5617100
    Abstract: An accurate position measuring system includes a communication satellite, a position measuring satellite, a position reference station, a network management station and a position measuring device. The communication satellite performs data communication. The position measuring satellite transmits position measurement data necessary for a position measurement calculation. The position reference station receives the position measurement data from the position measuring satellite and calculates positional error information. The calculated positional error information is transmitted to a network management station. The network management station collects the positional error information transmitted from the position reference station and transmits the collected positional error information to the communication satellite. The position measuring device receives the position measurement data from the position measuring satellite and calculates its current position.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: April 1, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masami Akiyoshi, Yuji Mitsunaga