He was once the assistant and apprentice of Takeshi Obata of _Hikaru no Go_ and _Death Note_ fame. He had a number of one-shots published in Weekly Shonen Jump, namely _Partner_ (won the 122nd Hop*Step award), _Samui Hanashi_ (won the 2nd Prize in the 51st Akatsuka Award), _Kaitou COLT_, and of course, _Eyeshield 21_ (began serialization in Weekly Shonen Jump No. 34 2002).
He is also responsible for designing Dust Man from _Rockman 4_ and Crystal Man from _Rockman 5_.
