In its three-year business plan unveiled Thursday, Sony Corp. said it aims to see annual sales in three additional business categories top ¥1 trillion, joining the four already above that target: LCD television sets, digital cameras and camcorders, games and mobile phones.

Under the plan for business 2008 to 2010, Sony is counting on boosting sales in personal computers, Blu-ray Disc-related products, and components and semiconductors.

"We will remain focused on profitability," Sony Chairman and CEO Howard Stringer said.