User blog comment:P進大好きbot/Japanese Googologists and Japanese Contributors to Googology/@comment-37224188-20191019011505/@comment-35470197-20191019093334

I am not counting a mathematician who has no intended contribution to googology. They are mathematicians whose works are actually intended to be involved in googology.

For example, one of the best Japanese contributors to googology would be professor Arai, who has invented a simplified OCF based on reflection, but he does not intend that his work is purely devoted to googology. Therefore I did not list him.