If a company is a stock corporation of Japan (kabushiki kaisha/KK) with a Board of Directors (torishimariyaku-kai), at least three Directors (torishimariyaku) and one Statutory Auditor (kansayaku) must be appointed. If the company is a company without a Board of Directors, it needs only one Director.
If the company has a Board of Directors, a Representative Director (daihyo torishimariyaku) must be appointed from among the Directors, and is authorized to formally represent and bind the company and implement decisions made by the Board of Directors.
Please click the link below to see the memorandum for more detailed information.