Tokyo, Dec. 26 (Jiji Press)--Buichiro Kuroda, new chief of Japan's Imperial Household Agency, has pledged to carry out his duties to the best of his ability. "This is an extremely responsible job, so I am ready to make maximum efforts," Kuroda, 65, who took office as grand steward of the agency Wednesday, told a press conference Thursday, which was also attended by his predecessor, Yasuhiko...