His name is Tochibayashi Masaru (surname is first in Japan). He's 42 years old and was born in Kyushu, but currently lives in Saitama, which is just north of Tokyo. Starting in 1988, while still in university, he started working as an assistant under several manga artists. He (unexpectedly) started doing CG animation for TV commercials in 2002. His bio implies that he is freelance and does photography, CG animation and 3-D modeling.
I meant to contact him before, since he doesn't live too far from me, but forgot. I'm going to send him an email and see if I can meet him sometime. I'll let you guys know.