In order to follow the steps of the European Union, Japan plans to follow in the protection of the consumer's data. Note what their goal is:
The country's trade and communications ministries aim to have such a system operating in the 2020s. An expert panel will propose a data portability framework within this fiscal year designed to allow easy transfer of such information from one storage environment to another at an individual's request.
If this were to go through, it would be a break through in continuing to protect consumer's data, not just in Europe, but in a powerful market like Japan.
Read the full article here: https://asia.nikkei.com/Politics-Economy/Policy-Politics/Japan-eyes-easy-consumer-access-to-personal-data
Read more about how you can comply with the rules of data portability here: www.idlink.eu