Hario Coffee equipment - Tokyo

I'm hoping to pick up a few Hario V60 glass coffee drippers, filters and other equipment. I tried looking for a dedicated Hario shop in Tokyo but can't find one.

Is this stuff easy to find in department stores? Or is there a Hario shop somewhere in the city?

I've bought from Hario's online store, but have not found a physical Hario-only store (I live in Tokyo).

I believe Hario is available at many department stores. If the specific model you want is not there, you could ask the department store to contact the manufacturer for stock situation and dispatch to that store.