NY -- Standard&Poor's CreditWire 5/18/98 -- Standard&Poor's today placed its single-'A' long-term ratings and 'A-1' short-term ratings of Toshiba Corp. and related entities on CreditWatch with negative implications (see list below). The CreditWatch placements reflect concerns about Toshiba's increased reliance on the information systems and electronic devices segment, which is highly susceptible to volatile market conditions for PCs and semiconductors. Toshiba divides its operations into three segments: information systems and electronic devices, heavy electric machinery, and home electric appliances. The home electric appliance segment has turned in poor operating results since fiscal 1993. Meanwhile, heavy electric machinery, which previously generated stable cash flows, has seen its profitability decline in recent years. Consequently, Toshiba's overall operating performance
