AmericanLawyers, AmericanTraditions, AmericanBaseball, AmericanEagle(s). Improper English to use America, should be plural AmericasLawyers ( noun), or non plural like AmericasBest (adjective). AmericanBest would not be correct English. BestAmericanHomes, would be correct by adding subject at the end.
I donβt know why English would be combined with non English speaking Countries if selling to them. But... if you insist like GermanBratwurst, GermanNights. Nacht is Night, btw. GermanyNight makes no sense in English. The plural sounds better in nights, but not bratwursts...
JapaneseSushi not JapanSushi. ChineseFood, not ChinaFood, unless say you add on a word- ChinaFoodTrends. I am not an English teacher, so cannot explain why, someone else can explain the rules perhaps. Hope that helps.
Your help in this forum is really appreciated btw with understanding Chinese usages.
As a brand, AmeriTech exists. AmericanTech would be too generic to be a company name, unless say adding on a word, AmericanTechSchools.
So, looked it up. America, China, Japan, are only a noun, but American, Chinese, Japanese can be both an adjective or noun depending on use.
https://en.m.wikipedia.org/wiki/American_(word)