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. 05, 2012
Filed:
Feb. 06, 2009
Applicant:
Tsuyoshi Muto, Yokohama, JP;
Inventor:
Tsuyoshi Muto, Yokohama, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 7/04 (2006.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
An authentication server, on receipt of a request to delete a user account, determines whether the account exists in a user authentication table. If the account exists, the authentication server deletes the account, and retrieves, from a requesters list in which information of devices from which users have to date requested user authentication is saved, an address of a device from which the user targeted for deletion has previously issued an authentication request, and issues a deletion request to that device together with account information. Similar processing to change a user account is performed in response to a change request.