By YURI KAGEYAMA The Associated Press TOKYO — Japan is in love with Twitter with one notable exception: political campaigns. In this June 29, 2010 photo, a man looks at candidates' posters for the July 11 upper house parliamentary elections in Tokyo. Japan is in love with Twitter with one notable exception: political campaigns. (AP Photo/Itsuo Inouye) In this June 29, 2010 photo, Twitter Inc. spo