EQT AB agreed to sell Pioneer Corp. for $1.1 billion, marking the biggest exit in Japan for the Swedish buyout firm that sees Japan as a key pillar of its dealmaking strategy in the region.Two of EQT’s funds agreed to sell the Japanese automotive electronics manufacturer to CarUX, a subsidiary of Taiwan-listed Innolux Corp., according to a statement Thursday. The transaction is subject to customary conditions and approvals and is expected to be completed in the fourth quarter....