I think it would probably be all-katakana for his name. So the series title would be something like: 魔法熊クマ•ベアー

Obviously the next step is for someone to make the gijinka interpretation.

(Reposted to fix the transliteration, as I remember that trailing r gets transliterated as an extended vowel. It doesn't come out as "bearu", but "beh-ah").