Patents by Inventor Shigeyoshi Hamada

Shigeyoshi Hamada 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).

  • POSITION INFORMATION PROVIDING SYSTEM AND POSITION INFORMATION PROVIDING METHOD
    Publication number: 20220104026
    Abstract: A position information providing system includes at least one message transmitter and an authentication server synchronous in time with each other. The message transmitter includes generation means for generating an authentication code depending on time and a specific code and transmission means for transmitting a message.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 31, 2022
    Inventors: Tomonori Yokota, Kazuki Okano, Makoto Ishii, Shigeyoshi Hamada