I suspect like a lot of big Japanese companies, they have many parts and many interests. I always find it interesting, but slightly strange from a Western perspective that a company like Misubishi would encompass Electronics, heavy engineering, Aircraft, and Automotive products, as well as apparently film and paper. Western companies tend to stay more within their sector which could be considered either a strength or a weakness depending on POV.
Bit like Ilford taking over the JCB plant, and knocking out 35mm film under the famous earthmoving brand