is a Japanese former professional baseball catcher. He played in Nippon Professional Baseball (NPB) for the Seibu Lions/Saitama Seibu Lions, Fukuoka SoftBank Hawks, Tohoku Rakuten Golden Eagles, and Chiba Lotte Marines.
Hosokawa selected Seibu Lions in the .
On September 22, 2002, Hosokawa made his NPB debut.
On November 9, 2020, Hosokawa announced his retirement.
On December 8, 2020, Hosoya become manager for the Hinokuni Salamanders of Kyusyu Independence professional baseball league.