1) Thrash metal act from Tokyo, Japan, formed in November 1986. Rosenfeld features vocalist/frontman Hisayoshi Hiraga as the only permanent member. In 1986 the band started out with Yasuhiro Kamei (gt), Hajime Morii (b) & Takafumi Segawa (ds). In December 1987 Kamei left the band and Rosenfeld's activities were put on hold. As a result Hisayoshi joined ＡＩＯＮ in January 1988, playing his first gig with the band on March 13th. In June 1989 he leaves the band to restart Rosenfeld, and he does so with Youichi Horizoe on guitar as a replacement for Kamei. They released two albums: "Pigs .