Patents by Inventor Yuichi Zokumasui

Yuichi Zokumasui 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).

  • Encryption communication system, apparatus, method, and program
    Publication number: 20080098226
    Abstract: A plurality of encryption communication apparatuses to which terminal apparatuses are connected are connected via a network, data received from the terminal apparatus which is a transmission source is encrypted by the encryption communication apparatus and transmitted to the other encryption communication apparatus, and data received from the other encryption communication apparatus is decrypted and transmitted to the terminal apparatus which is a transmission destination. Upon initiation of first communication with the other encryption communication apparatuses, the encryption communication apparatus generates and exchange encryption keys according to an encryption key exchange protocol, records them in the encryption key control table and, and sets validity time so as to control that.
    Type: Application
    Filed: January 26, 2007
    Publication date: April 24, 2008
    Applicant: Fujitsu Limited
    Inventor: Yuichi Zokumasui