Mitsubishi Materials Corp said Thursday that three of its subsidiaries have falsified specification data for products supplied to the aerospace, automotive and electric power industries. The revelation comes on the heels of quality control scandals at other major Japanese firms, including a metal product data falsification scandal at Kobe Steel…
Mitsubishi Materials Corp said Thursday that three of its subsidiaries have falsified specification data for products supplied to the aerospace, automotive and electric power industries.
The revelation comes on the heels of quality control scandals at other major Japanese firms, including a metal product data falsification scandal at Kobe Steel Ltd.
One of the subsidiaries’ rubber products not meeting specification requirements of the Self-Defense Forces were used in some of the engines of their aircraft and vessels, according to officials at a government agency responsible for development and procurement of defense equipment.
Of the three firms, Mitsubishi Cable Industries Ltd falsified data on sealing materials used for joining metal parts such as pipes supplied to 229 firms, and Mitsubishi Shindoh Co rigged data on copper products shipped to 29 companies. None of the cases have been found to have caused any safety problems so far, Mitsubishi Materials said.
Another unit Mitsubishi Aluminum Co also supplied products with falsified specification data, but it and client firms have already confirmed that they are safe for continued use, according to Mitsubishi Materials.
At Mitsubishi Cable, specification data on its O-ring sealing product were altered to match those requested by client companies.
