Patents by Inventor Takehiro IWABUCHI

Takehiro IWABUCHI 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).

  • Authentication system, in-vehicle authentication system, and authentication method
    Patent number: 12459463
    Abstract: An authentication system includes: a first communication device including: a first transmitting part configured to communicate in a first frequency band; and a first transmitting-and-receiving part configured to communicate in a second frequency band; and a second communication device including: a first receiving part configured to communicate in the first frequency band; and a second transmitting-and-receiving part configured to communicate in the second frequency band, and, in this authentication system, the first communication device transmits a command in the first frequency band from the first transmitting part, and, upon receipt of the command by the first receiving part, the second communication device activates the second transmitting-and-receiving part, generates an authentication key for a response signal, and transmits the response signal including the generated authentication key in the second frequency band, from the second communication device.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: November 4, 2025
    Assignees: ALPS ALPINE CO., LTD., HONDA MOTOR CO., LTD.
    Inventors: Daichi Suto, Takehiro Iwabuchi, Akira Miyazawa, Masashi Sato
  • AUTHENTICATION SYSTEM, IN-VEHICLE AUTHENTICATION SYSTEM, AND AUTHENTICATION METHOD
    Publication number: 20230413044
    Abstract: According to the present disclosure, an authentication system includes: a first communication device including: a first transmitting part configured to communicate in a first frequency band; and a first transmitting-and-receiving part configured to communicate in a second frequency band; and a second communication device including: a first receiving part configured to communicate in the first frequency band; and a second transmitting-and-receiving part configured to communicate in the second frequency band, and, in this authentication system, the first communication device transmits a command in the first frequency band from the first transmitting part, and, upon receipt of the command by the first receiving part, the second communication device activates the second transmitting-and-receiving part, generates an authentication key for a response signal, and transmits the response signal including the generated authentication key in the second frequency band, from the second communication device.
    Type: Application
    Filed: May 22, 2023
    Publication date: December 21, 2023
    Inventors: Daichi SUTO, Takehiro IWABUCHI, Akira MIYAZAWA, Masashi SATO