From Wikipedia:

Kenjiro Hata (畑 健二郎, Hata Kenjirō?, born October 19 in 1970s in Fukuoka Prefecture, Japan[1]) is a Japanese mangaka. He is notable for the creation of the series Hayate no Gotoku!. He likes to collect anime related items, such as figurines. He was once an assistant of Kumeta Kouji.