Patent ID: 9450905
Filing Date: 2016-09-20
CPC Classification: H04L

Claim Text:
1. An information sharing system for sharing information among a user group including a first user and a second user, comprising at least one central processor configured to: send a message from each user of the user group to all other users of the user group; send to the first user a first type notification which is separated from the message in a case where the message includes a comment that specifies the first user as a destination and sending to the second user a second type notification which is different from the first type notification and is separated from the message; send to the second user the first type notification which is separated from the message in a case where the message includes a comment that specifies the second user as a destination and sending to the first user the second type notification which is separated from the message; send to the first user and the second user the second type notification which is separated from the message in a case where the destination is not specified in the message; and generate display information for displaying a screen on a display of each of the first user and the second user, the screen distinguishing the first type notification from the second type notification.