Juninho Bacuna netted the only goal of the game 10 minutes into the second half to lift the Terriers nine points clear of the Championship drop zone.
Saturday's victory was Town's first in five attempts and owed much to the effort that his players expended at Loftus Road, according to head coach Corberan.
“That’s a very important three points for us in the table," the Spaniard reflected.
“It’s important that the players get the reward for their efforts. The players engineered that win today.
“We gave them [QPR] the middle of the pitch a little to start the game, so we changed the shape a little. After that, it was down to the effort of the players.
"Every player on the team was important today. Every player has to continue to make their maximum effort for the team as we go forward."
The game's decisive moment arrived on 56 minutes when Bacuna received the ball from Pipa on the edge of the Rangers area before rifling a right-footed strike past Seny Dieng.
And Corberan was appreciative of the Dutch midfielder's match-winning contribution, while also acknowledging how well his team defended.
“It is not easy for a player like Juninho Bacuna to play so many minutes. I really appreciate his effort," the Terriers chief added.
“His goal today was important, not only for him but the team too.
“QPR create many problems, but it’s positive that we stopped their strengths. Defending well is one of the keys in football, and that’s two clean-sheets in a row now.
“If we can extend that, we know we have players on the pitch who can score goals.”
Saturday's success sees Huddersfield climb up to 18th in the Championship table.