Denka Co. Ltd. (TYO:4061) has released its business results for the first three quarters of fiscal 2020. The company revealed sales revenue of 261.99 billion yen ($2.51 billion) for the April–December period, down 9.2 percent year-on-year; an operating income of 28.03 billion yen, up 16.7 percent; an ordinary income of 27.3 billion yen, up 20.2 percent; and a net income…