Bulgarian President Petar Stoyanov is scheduled to visit Japan from Nov. 16 to 20 as a state guest to discuss bilateral and international issues with Prime Minister Ryutaro Hashimoto, Foreign Ministry officials said Oct. 17.The visit is intended to help strengthen relations between the two nations, the officials said. Stoyanov will be accompanied by members of his Cabinet, including Deputy Prime Minister Alexandar Boshkov and Foreign Minister Nadezhda Mihailova, they said.