Research activity at Auto-ID Lab. Japan was presented at Networked RFID Workshop in SAINT 2007 in Hiroshima, Japan. SAINT (International Symposium on Applications and the Internet) is a symposium co-sponsored by the IEEE Computer Society (IEEE-CS) and the Information Processing Society of Japan (IPSJ). The studies presented by Auto-ID Lab. Japan were "Multipath Identification using Steepest Gradient Method for Dynamic Inventory in UHF RFID" co-authored by Dr. Jin Mitsugi and Yu Shibao, and "Customer Loyalty Based Dynamic Pricing by Using RFID-enabled Floor Level Sales Information" authored by Tatsuya Inaba.