Wireless tag communication device, information processing apparatus, and recording medium

A wireless tag communication device comprising:

• a communication-state detecting section configured to detect a communication state between a specific wireless tag to be searched and an antenna;
• a transmission-power storing section configured to store a transmission power value obtained if the communication state detected by the communication-state detecting section is better than a predetermined value;
• a transmission-power control section configured to reduce transmission power to the wireless tag and, if the communication-state detecting section detects that the communication state is worse than the predetermined value, increase, on the basis of the transmission power value stored in the transmission-power storing section, the transmission power to be higher than the transmission power value and perform communication with the wireless tag;
• and
• a transmission-power resetting section configured to perform resetting on the basis of the stored transmission power value if the communication-state detecting section detects that the communication state further worsens.