I've founded and run four companies in Japan. I've run market entry for firms coming into Japan. I also work with large Japanese companies on their open innovation initiatives. Doing business in Japan can seem pretty confusing until you get the hang of it, and I'd be happy to talk you though it.

I also publish frequently (in both English and Japanese) about business in Japanese and host the Disrupting Japan podcast.
I you are serious about selling in Japan, I can help you out.