For Use Japan Only

For Use In Japan Only
I always noticed how many items are only designed for use Japan only. That apparently protects Japanese domestic industry. Japan is for Japan's sake. Outside people cannot use such devices as designed only for Japan's product.
If Japanese standard is very universal, there might be no serious problems. But the standard of this country is very different from other countries' standard.
Thus 'For Use In Japan Only' means Japanese people are narrowing their possibility on their own.
How pity for they don't realise what they are doing!