Nishimura & Asahi, Simpson Thacher & Barlett and Mori Hamada & Matsumoto have advised on a $1 billion combined issue of equity and convertible bonds by a Japanese memory products manufacturer.

Tokyo-based Elpida Memory, Inc., the world’s third-largest computer memory chip maker, floated a combined offering of $660 million in new shares, equivalent to 27 percent of the company’s outstanding stock, and $250 million in convertible bonds on the Tokyo Stock Exchange.