While Japan's female fighters didn't have there most successful world championships as far as the individual contests over the past week are concerned, when you put them all together they are hard to beat:
http://www.japantimes.co.jp/sports/2013/09/02/more-sports/japans-women-take-team-judo-gold/#.UiTJZX8t0yY
http://www.japantimes.co.jp/sports/2013/09/02/more-sports/japans-women-take-team-judo-gold/#.UiTJZX8t0yY