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:
Dec. 12, 2006
Filed:
Sep. 13, 2001
Ichiro Futamura, Kanagawa, JP;
Yoshihito Ishibashi, Tokyo, JP;
Shinako Matsuyama, Tokyo, JP;
Masashi Kon, Kanagawa, JP;
Hideaki Watanabe, Tokyo, JP;
Ichiro Futamura, Kanagawa, JP;
Yoshihito Ishibashi, Tokyo, JP;
Shinako Matsuyama, Tokyo, JP;
Masashi Kon, Kanagawa, JP;
Hideaki Watanabe, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Abstract
Provided is a structure enabling dispersion of a load that is incurred by a public key certificate issuer authority or a registration authority. The structure has an issuer authority that issues a public key certificate and registration authorities each of which receives and examines a request for issuance of a public key certificate made by an end entity, wherein the registration authorities are hierarchically structured. Each of registration authorities of a hierarchical level manages registration authorities that rank immediately below or end entities. The registration authority receives a request for issuance of a public key certificate and examines it. This means that a load each registration authority must incur for processing is dispersed. One hierarchical structure of registration authorities is formed under any of various standards which stipulates a security policy, scalability, geographical classification, functional classification, or an organization.