Patents by Inventor Takehiko MIENO

Takehiko MIENO 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).

  • Cryptographic communication system, cryptographic communication method, and cryptographic communication apparatus
    Patent number: 11757856
    Abstract: A cryptographic communication system includes: a first cryptographic communication apparatus including a first tamper-resistant device configured to store a first key generation function and a first storage unit configured to store first individual information; and a second cryptographic communication apparatus including a second tamper-resistant device configured to store a second key generation function and a second storage unit configured to store second individual information. The first cryptographic communication apparatus generates a twelfth shared key using the first key generation function and the second individual information. The second cryptographic communication apparatus generates a twenty first shared key using the second key generation function and the first individual information.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: September 12, 2023
    Assignees: SEIKO EPSON CORPORATION, Shinshu University
    Inventors: Takehiko Mieno, Hiroyuki Okazaki
  • CRYPTOGRAPHIC COMMUNICATION SYSTEM, CRYPTOGRAPHIC COMMUNICATION METHOD, AND CRYPTOGRAPHIC COMMUNICATION APPARATUS
    Publication number: 20220182367
    Abstract: A cryptographic communication system includes: a first cryptographic communication apparatus including a first tamper-resistant device configured to store a first key generation function and a first storage unit configured to store first individual information; and a second cryptographic communication apparatus including a second tamper-resistant device configured to store a second key generation function and a second storage unit configured to store second individual information. The first cryptographic communication apparatus generates a twelfth shared key using the first key generation function and the second individual information. The second cryptographic communication apparatus generates a twenty first shared key using the second key generation function and the first individual information.
    Type: Application
    Filed: December 8, 2021
    Publication date: June 9, 2022
    Applicants: SEIKO EPSON CORPORATION, Shinshu University
    Inventors: Takehiko MIENO, Hiroyuki OKAZAKI