NTT Com’s wireless LAN Hotspot service will be expanded to Sendai Airport Terminal. The services will be enabled with the installation of NTT Broadband Platform Corporation’s wireless LAN facility in the airport.

NTT Com currently provides the Hotspot service at the major Airport Terminals in Japan including: Shin-Chitose (JAL Lounge), Narita, Haneda, Chubu, Itami, Hiroshima, and Fukuoka. 

http://www.hotspot.ne.jp/en/index.html