Japan deploys record $72.4 billion to fight yen weakness while coordinating with the US Treasury, pushing Japanese firms toward Bitcoin as a

Coordination between Japan and the United States now appears to be the tightest in decades, fuelling one of the most notable rebounds since the yen began its years-long slide.

Japan and the U.S. may unveil a joint policy next week to defend the yen after record interventions in April and May.

Japan's Finance Minister plans to reveal a cooperation with Washington regarding currency market interventions aimed at arresting the yen's drastic decline to levels not seen in…