What is the difference between ramen, soba, buckwheat noodles, and udon noodles?
How to distinguish ramen restauranst from soba or udon restaurants?
Soup stock for soba or udon noodles in based on bonito, but soup stock for ramen is based on various things, not only bonito, but also pork born and others.
Soba is made from buckwheat. Ramen is originally from China, but what we call ramen nowadays has become more Japanese.
Lets just remember how to write ramen in Japanese Hiragana and Katakana.
Ramen : ラーメン usually written in Katakana.
Udon : うどん usually written in Hiragana.