The Japan Consumer Network (Jaconet) has launched an ODR research project.  Information in English on Jaconet is available here:

http://www.japanconsumernetwork.org/english.html

Information on the  ODR Research Project, available only in Japanese, is available here:

http://www.japanconsumernetwork.org/odr307403135020250.html

Also available (only in Japanese) is the  “Report of the Research Project regarding Resolution of Transboundary E-Commerce Troubles (ODR Research Project)”, issued on July 20, 2016.

http://www.japanconsumernetwork.org/odr307403135020250225772157826360.html

The full report is available in .DOC format here: http://myspace.private.coocan.jp/odr/2015/2015_main.docx

For non-Japanese speakers, after summarizing the current framework for resolving transboundary E-commerce troubles, Jaconet  proposes that “Japan’s Consumer Affairs Agency or METI (Ministry of Economy, Trade and Industry) should establish a study forum for constructing ODR system. The study should aim at creating a prototype of ODR based on discussion of related parties, and conducting demonstration experiments by applying it in practice.”

(h/t Hiroki for the links and translation)