Patent ID: 8365251
Filing Date: 2013-01-29
Classification: A63F

Abstract:
1. A user management system comprising: a management server device; and, a plurality of terminal devices, wherein (a) each of the plurality of terminal devices includes: a terminal memory unit which stores a user name of a login user using a local terminal device, and which stores a user name of a friend user who is a friend of the login user and a mail address of the friend user in association with each other; and a login report transmitting unit which transmits a login report, specifying the user name of the login user and the user name of the friend user stored in the terminal memory unit, to the management server device, wherein (b) the management server device includes: a login report receiving unit which receives the login reports transmitted from each of the plurality of terminal devices; a server memory unit which stores each of the received login reports in association with a login time; an acquiring unit which selects one of the stored login reports which is associated with a latest login time for each login user name specified in each login report stored in the server memory unit, and which acquires a user name of a login user specified in, among the selected login reports, a login report satisfying a predetermined friend condition relative to the received login report together with a login time stored in association with that login report; a login response transmitting unit which transmits a login response, specifying the acquired user name and login time as a user name of a friend user and a login time of the friend user, respectively, to the terminal device which has transmitted the received login report; and a server updating unit which stores the received login report in the server memory unit in association with a login time which is a current time, wherein (c) each of the plurality of terminal devices further includes: a login response receiving unit which receives the login response transmitted from the management server device; an extracting unit which extracts, among user names of friend users specified in the received login response, a user name of a friend user, having a difference between a current time and a login time of the friend user specified in the received login response, the difference exceeding a predetermined threshold period; and a mail transmitting unit which transmits an electronic mail prompting the friend user to log in to a mail address stored in the terminal memory unit in association with the user name of the extracted friend user, and wherein a condition that one login report satisfying a predetermined friend condition relative to another login report is a case in which: (1) a user name of a friend user specified in another login report is specified as a user name of a login user in the one login report; and (2) a user name of a login user specified in another login report is specified as a user name of a friend user in the one login report.