...TOKYO (Standard & Poor's) March 18, 2016--Standard & Poor's Ratings Services today said that its ratings on Japan-based diversified electronics company Toshiba Corp. (B+/Watch Neg/B) remain on CreditWatch with negative implications after the company announced on March 17 that it had concluded a deal with Japan-based optical equipment maker Canon Inc. and had transferred its entire stake in medical equipment subsidiary Toshiba Medical Systems Corp. for about Ñ665.5 billion. We have kept our ratings on Toshiba on CreditWatch with negative implications since December 2015. When we maintained the ratings on CreditWatch in February 2016, we stated that before removing the ratings from CreditWatch we would need to confirm Toshiba is making progress in selling its assets and businesses, including Toshiba Medical Systems. We are keeping the ratings on CreditWatch with negative implications because we need to continue to examine Toshiba's operating performance for fiscal 2015 (ending March 31, 2016)...