When we think about japan we think of mangas, electronics and weird game shows. When it comes to germany, we think (mainly) of Adolf Hitler, the genocide and cars.
The japanese killed way more innocent people (i think) and raped / tortured loads. Why are the germnas still branded and the japanese not so much?
Sorry for grammar flaws
You should be aware of the subjectiveness of you perspective.
Japans actions were largely done far away from western countries (Pearl Harbour and actions in British colonies notwithstanding). German actions are far more in focus in western awareness. That said, the perception of modern Germany is not as negative as you make it seem.
The perception of the Japanese by their Asian neighbours today is much more resentful than than that of Germanys neighbours. For example, there is very large focus on the war in Chinese fiction:
http://www.wantchinatimes.com/news-subclass-cnt.aspx?id=20130218000020&cid=1104
"Nearly one billion Japanese soldiers or enemies were killed off in TV productions filmed last year at Hengdian World Studios, the studio facilities known as the Hollywood of China, the Guangdong-based Yangcheng Evening News reports, suggesting that Chinese TV audiences like to achieve some degree of catharsis for their anti-Japanese sentiment with a high body count of enemy combatants in historical dramas."
This resentment is not exclusive to China, and Japan frequently aggravates their neighbours by heads of state visiting shrines to their war dead etc.