Summary Box: Olympus to go after erring executives

PROMISES: Olympus Corp. says it will go after erring executives involved in an elaborate scheme to hide $1.5 billion of investment losses.

SPECIFICS: The company, which makes camera and medical equipment, says it will investigate about 70 people including former and current board members, auditors and other officials for their possible involvement.

APOLOGIES: President Shuichi Takayama bowed deeply in apology at a Tokyo hotel, a day after a third-party panel released the findings of an investigation that showed top executives who were “rotten to the core” had orchestrated the accounting cover-up spanning three decades.