Wait, I thought cats were mostly spread around the world (from Africa) with the pre-Egyptians, then the actual Egyptians and finally the Greeks? House cats at least. Bigger species probably spread much earlier.
The Jōmon period lasted longer than stated here. According to Wikipedia, it lasted from 14000 BCE (so 16000 years ago) to around 300 BCE (i.e. ~2300 years ago).
Yeah it probably wasnt modeled after a domesticated cat. Looks like there could've been leopard cats in Japan around then, or could be a weasel or fox or something , a lot of carnivores have pointy ears like that.