Toshiaki "Toshi" Ishizuka (石塚 俊明, Ishizuka Toshiaki, born February 2, 1950) is a Japanese drummer. He played on Kazuki Tomokawa's albums and is part of the band Vajra (with Kan Mikami and Keiji Haino).[1] His last album, released in 2006 on P.S.F. Records, is entitled Drum Drama.[2]