Nidec will sue its founder, Shigenobu Nagamori, and eight other past and present senior executives, seeking compensation for damage they caused the company during a long-running accounting scandal, the company said.
The electronics component maker said the nine men held its top management posts during the period covered by the improper accounting. The company did not say when it would file the suit or how much it would seek.
Nagamori built Nidec into one of the world's largest makers of precision motors, and remained the company's public face long after stepping back from day-to-day operations. Suing him is unusual for a Japanese manufacturer, where founders are rarely held personally to account for the years they ran the business.
The company announced the decision after a series of accounting problems at the firm came to light. Nidec has not disclosed the size of the losses involved.
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