Toshiba Memory Corp. plans to go public as soon as September, aided by some 300 billion yen ($2.7 billion) in planned investment from the state-backed Development Bank of Japan, sources close to the matter said Thursday.Toshiba Memory, a former chip unit of Toshiba Corp. which was sold to a consortium led by U.S. private equity fund Bain Capital last June, will use the 300 billion yen to buy back preferred shares currently held by four U.S. technology companies in the consortium, including Apple Inc. and Dell Inc., they said.The Japanese government-backed INCJ fund is also mulling investing…READ FULL ARTICLE