Firstly, in the industry of electronic devices, the Japanese brands such as Sony and Toshiba have lead the market for the past 40 years. And this situation has been changed, LG and Samsung can also catch the consumers' sight now, they have both entered the consideration list when someone's buying electronic devices like Lcd monitor and laptop.
Secondly, the pop music leading position has also shifted from Japan to Korean slowly. For the past few years, the musical industry was also developing rapidly. The musical groups like super junior and girls generation are popular all over the world, a song from super junior called "sorry sorry" can be heard everywhere.
Sorry Sorry
In short, Japan has fallen so much due to its economic downside and Korea treasure this opportunity to reduce the technological differences of two countries. Korea has caught up with japan nevertheless we may not conclude that korea is exceeding japan.