I saw a person write his name in Romaji as Kohsuke. I am a beginner Japanese student and it struck me as odd to see that "h" in there. I would have thought his name to be written as Kosuke if it were to follow proper form.
Is the introduction of the single "h" a common convention to aid with pronunciation? Or perhaps something he just does to set his name apart from others?
Unfortunately I do not have access to the Kanji representation of his name.