With reference to the design polished graphics “family crest” of ancient Japan?

Kamon, which Japanese has been used from the old times as a family symbol.
It is well sophisticated sense but not old-fashioned graphic.
You may not have much opportunity to see Kamon unless you visit ancestors’ grave, but it tells your family tree or history.
“家紋World”, which is owned by HARIMAYA, has lots of contents about history of Kamon, famous stories of Sengoku period military commanders, and so on.

家紋World
http://www.harimaya.com/kamon/