Patent ID: 7952740

Claim:
A communication device, comprising: a display unit capable of displaying two or more pieces of image data at the same time; a storage unit keeping sent historical information containing sent image data and received historical information containing received image data as sent-and-received historical information; an image display control unit controlling the display unit to display the sent image data contained in the sent historical information and the received image data contained in the received historical information on the display unit at the same time, both of the sent image data and received image data that are contained in a plurality of sets of sent-and-received historical information indicative of a plurality of communications executed with a single target group; and a target-group setting unit selecting a plurality of target parties and setting the selected target parties in a single target group, the target-group setting unit including a target-group registering unit that selects at least one set of image data from among the sent image data and received image data contained in the sent-and-received historical information and that registers, as a single communication matter group, at least one target party, with which the selected at least one set of image data is communicated.