Toshiba Corp. told its creditor banks it will be difficult to pick its joint venture partner Western Digital Corp. as the buyer of its chip business, after the two firms held talks the previous day, sources close to the matter said Thursday.In a meeting with major banks including Sumitomo Mitsui Financial Group Inc. and Mizuho Financial Group Inc. in Tokyo Thursday, Toshiba revealed that all bidders have offered 2 trillion yen ($17.9 billion) or more for the chip subsidiary as the Japanese conglomerate aims to raise cash to fund its turnaround steps, the sources said.Western Digital Chief E…READ FULL ARTICLE