Japanese mangaka, artist.

Pen-name: 村正 みかど (Muramasa Mikado)
The other names: 村正 帝 (Muramasa Mikado) or 裏村正 みかど
Company name (sometimes used as a joint pen-name): 武礼堂 (Bureidou)

Circle name: 秋葉原地下格闘場 (Akihabara Chika Kakutou Jou, AkihabaraFightingClub)
muramasa mikado