Yuji, please read this article in Japan Times. I totally agree with the author - it's an outrage!
http://search.japantimes.co.jp/cgi-bin/fl20090407ad.html Under an emergency measure drawn up by the ruling Liberal Democratic Party only last month, from April 1 the Japanese government is offering nikkei ― i.e. workers of Japanese descent on "long-term resident" visas ― a repatriation bribe. Applicants get \300,000, plus \200,000 for each family dependent, if they "return to their own country," and bonuses if they go back sooner.