I puyrcahse3d Winmax hotspot bu "au" in Japan. This has the max speed of 320Mbps and there is no data limited. I should have purchased this at the beginning of this trip.
あさこ 
Pacific Software Publishing, Inc. 
水琴晶子（みことあきこ） 
Tetsuro Watanabe 
freetinyimages 
坂本祐央子（さかもとゆみこ） 
SETSUKO 
ロッキーおしょう 
Seattle Execs. 
橋本諭弥 
中村祐美子