Chinese authorities have formally arrested a Japanese businessman detained earlier this year on suspicion of espionage, the Japanese government said Thursday, despite its repeated calls to release him.Japanese Chief Cabinet Secretary Hirokazu Matsuno told a press conference that the government confirmed the arrest in mid-October of the man in his 50s, saying Tokyo will continue to urge Beijing to release him as soon as possible by working "at various levels."The man is an employee of Japanese drugmaker Astellas Pharma Inc. and has been detained by Chinese authorities in Beijing since March.…READ FULL ARTICLE