It also needs to fight off competition from emerging low-cost carriers and rival All Nippon Airways (ANA).

BBC: JAL profits boosted by cost cuts

It comes after an All Nippon Airways (ANA) 787 had to make an emergency landing due to a battery malfunction.

BBC: Dreamliner: Japan and US probe battery maker

Japan's leading airline, All Nippon Airways (ANA), has been using such e-wallets to compete with the country's formidably fast trains for more than five years.

BBC: Near field communication transforms travel in Japan