ALEXANDRIA, Va., March 5 -- United States Patent no. 12,242,656, issued on March 4, was assigned to GFS Corp. (Tokyo).
"Seal management method and seal management apparatus" was invented by Toshiyuki Uehara (Chiba, Japan) and Yoshiaki Takahashi (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A seal management apparatus for managing an electronic sealing service performs the steps of receiving seal-required data to be used for the sealing service from a user terminal of a user of the sealing service, generating (a) a seal secret key for sealing the seal-required data and (b) a seal public key used for verifying the seal, in a working memory, when the seal-required data is received, registering the seal ...