Coincheck, one of Japan's largest crypto exchanges, banked its parent 9 billion yen (US$82 million).
The brokerage's venture into cryptocurrency has increased the company's quarter-on-quarter growth threefold.
Oki Matsumoto said a central bank digital currency would make it easier to convert cryptocurrency into legal tender.
Monex Group, the Japanese financial services company that owns the Coincheck crypto exchange, has applied to join Facebook's Libra project.
Japanese cryptocurrency exchange Coincheck has launched an over-the-counter bitcoin trading service aimed at clients with deep pockets.
Japanese crypto exchange Coincheck, which suffered a $530 million hack in January of last year, is now a licensed entity.
Japanese crypto exchange Coincheck, which suffered a major hack in January, has now reinstated services for all listed tokens on its platform.
Coincheck, the Japanese crypto exchange that suffered a $520 million hack in January, has reported increased losses for Q3 2018.
The new owner of Japan's Coincheck exchange, Monex Group, says creating its own blockchain with an ICO to follow is on its radar.