the japan current is an ocean current that
The Kuroshio (黒潮,, "くろしお", (kɯɾoɕio) "Black Tide", "Japan Current") is a north-flowing ocean current on the west side of the North Pacific Ocean. It is similar to the Gulf Stream in the North Atlantic and is part of the North Pacific ocean gyre. Like the Gulf stream, it is a strong western boundary current.