[B-7-3] Polymer Additive Effects in Injection Molded Metal-Polymer Direct Joining 〇Shuohan Wang1, Fuminobu Kimura1, Shuaijie Zhao1, Eiji Yamaguchi2, Nayuta Horie2, Yusuke Kajihara1 (1.The University of Tokyo, 2.SINTOKOGIO, LTD) Keywords:Engineering、Injection molding、Metal-Polymer Direct joining、Additives、