Nidec sues founder over Japan's biggest accounting fraud in a decade.
Context
What happened: Nidec will sue its founder Shigenobu Nagamori over his role in accounting issues that inflated profits, following a report that he should bear liability.
Key numbers: Profits were inflated by $1bn over multiple years.
Why it matters: The case is described as Japan's biggest accounting fraud in a decade, and the report found the founder should bear liability for the issues.