TOKYO—Mitsubishi Electric’s CEO said he will step down to take responsibility for “three decades of systematic deceit” during which the Japanese firm falsified inspection data for air conditioners and brake compressors used in trains.
The admission by Mitsubishi, whose products range from air conditioners and vacuum cleaners to industrial printers and satellites, further dents Japan’s reputation for high-quality manufacturing, already tarnished by other cases of companies falsifying or covering up test data.