The Socceroos sit third in Group B in the fourth round of qualifying ahead of three important matches, beginning with the clash in Saitama.
 
Anything less than qualification for Brazil 2014 would likely cost Osieck his job, but the German said he was unfazed by the pressure.
 
"I don't occupy too much (thinking) with all that because if I read too much into that, I would definitely get distracted and couldn't focus on my job," Osieck told reporters on Monday.
 
"Secondly, I am under pressure in each and every game because I put myself under pressure in each and every game and want to get the most out of it.
 
"I want to have a good performance from the team. I want good results, so the pressure is intrinsic."
 
Osieck has hinted he will turn to his veterans for the encounter, with much of his squad made up of players over 30.
 
He defended himself against criticism younger players should be given more of a chance, saying experience is crucial in big games.
 
"Talent is one basic element but in order to play to your potential you require experience as well. You have to be on the top level for a number of games to experience the ups and downs of that business," Osieck said.
 
"That makes you grow and then your talent can be fully exploited."
 
Osieck pointed to Mustafa Amini as an example of a player who was expected to step up but had yet to develop into a Socceroo.
 
The 64-year-old has injury concerns in his squad, with midfielder Mile Jedinak and forward Alex Brosque both in doubt.
 
Osieck is unconcerned about the fitness levels of the clubless Lucas Neill and Brett Holman, who was out-of-favour at Aston Villa late in the English Premier League season.
 
Neill and Sasa Ognenovski are almost certain to be paired up in central defence, while Tommy Oar could get a start if Brosque is unfit.
 
With striker Josh Kennedy recalled to the squad, it has been suggested the Socceroos may use aerial balls as a plan of attack against a Japanese side they hold a height advantage over.
 
But Osieck dismissed critics who suggest his team are a long-ball side.
 
"That is definitely not my game plan and not my style of play, but that would never prevent us from just hitting some crosses," he said.
 
"But it is not the long balls like the old English style – 'high balls are good balls' – that's not the case."