Patents by Inventor Sumitaka Matsumoto

Sumitaka Matsumoto 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).

  • Method for using redundant encryption to secure data in supervisory control systems
    Patent number: 11741243
    Abstract: The invention described herein addresses the security shortcomings in existing Supervisory Control Systems (SCS), inclusive of but not limited to CAN Bus, SCADA, DCS, HEMS and IoT. The invention references U.S. Pat. No. 10,367,794 B2 Sayers et al., which is improved by the addition of a Validated Transmission data system, a Receiver Validation data system, and redundant links, which may be comprised of but not limited to technologies such as fiberoptics, time division multiplexing, frequency division multiplexing, various radio frequency links inclusive of TDM, OFDM, and CDMA modulation schemes, and a novel scheme for validating transmissions through self-generated tables by network elements.
    Type: Grant
    Filed: March 31, 2023
    Date of Patent: August 29, 2023
    Inventors: Sumitaka Matsumoto, Takafumi Nishida, Paul Jan Long, Ian L Sayers