	mitsui and co buys stake in imatron a mitsui and co mits t spokesman said its subsidiary mitsui and co usa inc bought two mln dlrs of newly issued shares in imatron inc an unlisted california based medical equipment manufacturer mitsui and co usa is now imatron s fifth largest shareholder with pct of the firm s outstanding shares imatron is capitalised at mln dlrs the spokesman said mitsui and co intends to import imatron s computerised diagnostic equipment into japan he said reuter 
