This is how I stayed connected while in Japan:
I picked it up at the Arrival Floor (outside Customs) at the Fukuoka International Airport Terminal. You will need to use a credit card.
The reception ia good from Fukuoka to Sasebo. They do throttle uploads so blogging with lots of photo will take long. Overall, I am happy with Ninja Wifi.
Get rates at their website: www.ninjawifi.com
Posted from Samsung Galaxy Note 4 for Kevin Miller Jr