A memoir by then Japanese Emperor Hirohito about Japan's slide into World War II fetched $275,000 at an auction in New York on Wednesday.The 173-page document, written in pencil by an aide to the emperor in the spring of 1946, was sold to Japanese plastic surgeon Katsuya Takasu, according to auction house Bonhams. Takasu said in a Twitter post that he will hand it over to the imperial family.