I have never heard of any Japanese people who depart from the cultural norm in that country of removing shoes at the door. I am sure in a heavily-populated country as Japan, there must be a few eccentric natives who stomp around their homes in shoes and who are deemed freaks by their countymen. However, I have never read about any.
I have read of people in shoe-removing countries like Canada, India and Sweden who depart from the norm by wearing shoes in their homes. However, it seems to me that the cultural wind blows mainly in one direction. It seems to be more common for people in non-shoe removing cultures like the USA and Britain to adopt the practise of shoes-off, than for those in shoes-removing countries to abandon the practise.