Sony has acquired a 10 per cent stake in workstation and supercomputer sales and integration company SGI Japan, the companies said on Thursday.

Sony took the stake at the same time as it formed an alliance to work with SGI Japan on sales of computer systems to broadcasting organisations. Sony is a major producer of professional equipment for the television broadcasting industry.

SGI Japan was the Japanese unit of Silicon Graphics until 2001 when NEC and NEC Soft took the equivalent of a 60 per cent share of the company. Since 1998 SGI and NEC have cooperated on supercomputer sales.