TOKYO, Feb. 8 (Xinhua) -- Mitsubishi Materials Corp. said Thursday it has uncovered more instances of product data falsification at its subsidiaries in a protracted scandal that has tarnished the image of Japanese manufactures.
According to an internal probe by the corporation, its subsidiaries Mitsubishi Aluminum Co., Tachibana Metal Co. and Diamet Corp. were all found to have manipulated inspection data.
Mitsubishi Aluminum shipped products with falsified data to 115 companies, while Tachibana Metal Co. dispatched products with false data to 307 firms.
Diamet Corp., producer of industrial and automotive components, shipped potentially sub-standard products to 73 of its clients.
Mitsubishi Materials has been under the spotlight for its subsidiaries' data falsification scandals, with internal probes beginning last year at Mitsubishi Cable Industries Ltd., Mitsubishi Shindoh Co. and Mitsubishi Aluminum.
The revelations led to Mitsubishi Cable Industry's President Hiroaki Murata stepping down to account for its involvement in the scandal, which saw the company knowingly continue to dispatch the affected products after the scandal first came to light.