Also the loss in Japan, including the nuclear bombs being dropped, effected much of Asia, the mind set of Japan and the culture fairly deeply.
Before the loss of the War, Japan thought it was a top nation destined by the heavenly powers to overtake Asia. After the loss, the military power focused towards economic power. Also, they lost much of East Asia's territory in the treaty. Japan, in large part has been preaching peace and ecology ever since. (Kyoto treaty, for example) So much of the technological advancement might not have happened. (Especially with MacArthur showing up and making the Japanese take the treaty). Also, railroad system came after the collapse (much of it) and the hatred turned into deep admiration of the US and trying to beat it on the world market.
Manga and anime wouldn't likely be in its current form, since Tezuka and many of the other artists mentioned that it was that lost that made them reevaluate how the art form was done.
Korea would still most likely be under Japanese control.
Parts of China would still have problems and the Rape of Nanking would have been covered up.
The Philippines might still be under Japanese control.
After the loss, also, the US started policing Japan to a great extent, also taking much of the experimentation the Japanese did on soldiers as part of the treaty (using it in the US's own technology *gags*) To the end that many war criminals would go free is still the same in either scenario.
So which parts did happen if it was a "partial" loss?
Ah, the previous is from memory of my Modern Japan class... I'm probably missing a bunch. But just because the majority of people don't travel doesn't mean that people won't know enough history to call you out on errors before or take you up on the challenge that X could happen.