On 1-hour chart and 4-h chart show that price of USD/JPY pair is in uptrend, and it looks like heading to support zone as a correction. 2 scenarios here.
1. Price hit previous high (resistance turned support) and create 15-Minutes uptrend
2. Price hit 1-Hour/ 4-Hour major support zone and create M15 / H1 uptrend (M15 - 15-Minute; H1 1-Hour)
Either one, when and only when price show current trend ready to be reversed, then price has higher probability that will head higher.
My guess here is once is show uptrend. A trade with stop loss below previous low, profit target could be 2-3R (or trailing stop with range of 1R) (R is distance from entry to stop loss)
If price didn't do as I think it does, the move is not valid and trade should not be placed.