ID my bowl

This is a humble, modern bowl. It is 6-1/2 inches across the rim and 2-1/4 from base to rim.
It's a medium green, evenly covered with small dark green and brown spots. The glazed surface is smooth and shiny.
The unglazed base is very light in color, not quite white.
The manufacture's mark is brown within a circle that has a rough texture and tan color. The mark is possibly a script letter J, S, or F, with JAPAN.