openwave have produced a tutorial in Japanese.
Please follow the link below to see more:
http://qiita.com/openwave-co-jp/items/7edb3661ab5703e38e7c
openwave also distribute a kit from Dragino which would be a good place to start. See below:
http://www.openwave.co.jp/lorawan/
![](https://thethingsnetwork.org/media/posts/1db009841fbd410cb0dde153254e3676.large.jpg)