Toshiba Corp. lost access to one of its subsidiary’s funds after hedge fund Oasis Management went to court to get the unit to take back its cash from the struggling conglomerate. Toshiba Plant Systems & Services Corp., which had 87.8 billion yen ($806 million) parked at Toshiba at the end of last year, said it had terminated its deposit agreement and recalled the money by March 31, according to court documents obtained by Bloomberg. Hong Kong-based Oasis filed a provisional injunction against Toshiba Plant’s directors with the Yokohama District Court on March 9, asking them not to deposit funds with...