I think japan and germany might have different routes to culture. In germany , culture means , reaching to the excellence , I think in japan , its about reach to the excellence with shortest most basic way. Look at martial arts , they teach the easiest , fastest way to kill a man , their swords are shortest way to again kill a man , architecture , industrial design are again the shortest way to reach success. Its about minimalism , but with minimal move.
Lets talk about science , leitz uses wave theory for 80 years , nikon started to use it at 2014. Research my last words.
by the way, germany produces paintings , sculpture , cathedrals for last 1300 years. Leitz uses 3d transfer function to place all high art knowledge in to their lenses , you cant take same portrait with any other lens .
mathematics and physics and mechanical engineering...