The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 06, 2006
Filed:
Aug. 29, 2000
Hideki Akashika, Koutou-ku, JP;
Shinichi Hirata, Zushi, JP;
Nagaaki Ohyama, Kawasaki, JP;
Akio Kokubu, Minato-ku, JP;
Hideki Akashika, Koutou-ku, JP;
Shinichi Hirata, Zushi, JP;
Nagaaki Ohyama, Kawasaki, JP;
Akio Kokubu, Minato-ku, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Abstract
A data storing system is provided, wherein the data storing system includes: a user apparatus; an issuing apparatus which issues a registration certificate; a data providing apparatus; an issuer registration apparatus; and a data registration apparatus; wherein the user apparatus includes: a part which generates registration information on a key including a user public key, sends the registration information to the issuing apparatus with user information; and a part which verifies a registration certificate, received from the issuing apparatus, which is signature information of the issuer for the registration information and the user information, stores the registration certificate to a storage device when the registration certificate is verified; wherein the issuing apparatus includes a part which generates the registration certificate and sends the registration certificate to the user apparatus.