EDIT: when downvoting, care to mention below why?

on why it didn't survive in Japan:

People pretty much started hating the military regime pretty hard after the liberation. They found out they had been lied to over and over again, and that the fascist regime had pretty much destroyed the country's reserves and economy to keep the war machine going, despite it being a losing battle. Especially the younger Japanese, who grew up in a pro-military education, felt thoroughly betrayed.

On top of that, the occupation of Japan went pretty well, relatively seen. The Japanese were very cooperative, and the Americans were very mild towards them. General MacArthur, managing the occupation, did a lot of things to appease the people, including letting them participate in writing the new laws and constitution, and letting the emperor remain untouched. I wouldn't say the Japanese liked the occupation, but most saw it as a necessary evil. They even actively assisted the Americans with proposals to increase democraty in the country, and wanted completely rebuild the system so a new military regime would never be possible again.

In short, they hated the military regime for lying to them, did not dislike the Americans for their 'mild occupation', if I may put it so, and even more so started to like them when the Americans started pumping money in the Japanese economy (to deal with the war in Vietnam and to help shield the US against the Sovjet threat).

The Japanese had no reason to see the military regime as a good thing, and most had no reason to hate the American occupation (even though a lot of them may have disliked it), because the occupators respected Japanese culture and even helped with rebuilding the country economically.

I think for the Germans, it's different. The occupators, the allies, had little concern about what the German population thought. The land was torn in pieces, and forced to pay really large war reparations. In short, the Germans didn't have any reason to like the occupation.

This may have caused some people to glorify the military regime, in reaction to this 'evil occupation of their country', causing nazi ideas and legacy to live on.

Also, Nazi heritage explicitely is anti-jew. Anti-semitists therefor turn to the nazi heritage, to find like-minded people. Japanese imperial thought was more one of 'Japanese superiority', with little explicit hate for one specific population. The people who nowadays think japanese are superior, and all others are inferior, can simply turn to extreme right-wing organisations and general racism to find a group of similar-minded people.