TOKYO, Jan 23, 2018 - (JCN Newswire) - Showa Denko ("SDK"; TSE:4004) has decided to re-expand its capacity to produce high-quality-grade silicon carbide (SiC) epitaxial wafers for power devices, which have already been marketed under the trade name of "High-Grade Epi" (HGE), in addition to currently conducted expansion work of HGE production...