Masabi to bring mobile ticketing to Japan
https://www.metro-report.com/news/news-by-region/asia-pacific-ex-china/single-view/view/masabi-to-bring-mobile-ticketing-to-japan.html
One of the most troublesome things in Japan is buying tickets everytime we change trains between different railway companies. Though this problem is solved in many parts of Japan after installing deposited transportation cards like ICOCA, we have to buy Limited Express Tickets everytime we change Limited Express trains between different train companies.
So, including these tickets, it would be better to integrate all kinds of tickets into one mobile ticket.