TOKYO -- The earthquake that struck Saturday night off the coast of Fukushima Prefecture, shaking northern and eastern Japan, has tripped up operations for many companies in a faint echo of the disruption brought by the much larger quake that hit the same area in 2011.
Renesas Electronics, a chipmaker, was one manufacturer affected. It shut down its key Naka factory in Ibaraki Prefecture, northeast of Tokyo, for safety reasons after power was temporarily knocked out.
