TOKYO -- Toshiba Chairman Shigenori Shiga is ready to step down to take responsibility for the huge write-downs looming over the Japanese group's U.S. nuclear power business.
Shiga, who took the chairman's post last June, is in charge of the nuclear power division and served for a time as president of Westinghouse Electric, the American subsidiary bracing for losses potentially so big they have forced Toshiba to spin off its lucrative memory business.
