Japan Times published a story on February 1, 2007 titled Toshiba triples its group net profit in April-December period. The article had this to say about the source of the results:
Toshiba Corp. reported Wednesday a group net profit of 111.3 billion yen for the first three quarters of its 2006 business year to March — more than triple from the previous year — led by robust earnings in the liquid crystal display, home electric appliance and nuclear reactor businesses.
In all fairness to the rest of Toshiba, the nuclear reactor business, which includes the recently purchased 77% stake in Westinghouse, represents about 26% of the total revenue and 20% of the profit.
Westinghouse itself is expected to contribute just 1.4% of the group’s full year sales and a few percent of its profits.