That just means that the label was made in Japan.I'm not sure what is American or what is not. Our 2008 Airbag was assembled in Ohio. HDs have been made all over but of course they have a long and honorable Japanese history too. The first shipping label was circulated as a joke (a long time ago when HDs had carbs). The other two pictures are from an article I had from the AMA years ago.
Also I guess I should have quoted the person who mentioned all the HD plants around the world instead (sorry Flatsixbasic). I think it is all interesting history.