Minor corrections:

1. It's "Polivanov", not "Polianov".

2. It's "Синдзюку", not "Синдзуку".

Another example of JP→EN→RU is Nintendo's character Yoshi: By Polivanov, it should have become "Ёси" but since it came to RU via EN, it is written as "Йоши".

Thanks for the correction!

しんじゅく (Cиндзюку, Sindzyuku) is an interesting case, as it has both し and じゅ in it. This is where Polivanov is similar to Kunrei. OTOH, Fukushima is cyrillized as Фукусима (Fukusima), where the ふ is a fu in Hepburn, hu in Kunrei and fu in Polivanov but し is not shi as in Hepburn, but si as in Kunrei.