keywords: ringtones ringtone companies raided firms
text: Record Companies Raided Over Mobile Ringtones TOKYO (AP) -- Japan's anti-monopoly agency raided several top record companies Thursday on suspicion they illegally blocked other firms from offering music ringtone services to mobile phone users.    Fair Trade Commission official Toshihiko Oizumi said investigators suspect more than 10 companies violated Japan's fair trade laws by preventing the Japanese mobile phone operators from offering the service...