Why is Japanese technology so advanced?

Answer 1

The Japanese have been isolationists for a long time, meaning that they spend money and resources on themselves and their own development as opposed to contributing greatly to world issues or trading relations.

As a result they can improve their own technological devices to a standard above most of the world because they can direct more attention and funding to it.

You may also wish to consider the fact that the Japanese government have adapted an attitude of self improvement. As a result, they have a kind of strive to better themselves as a country.

Answer 2

Japanese companies have a good habit of investing in new technologies that show potential. Many American companies watch Japan develop technology and then buy it if they like it.