"Coffee is as Japanese as baseball and beer."

Amen. Check out this article on NYTimes.com. I chanced upon the article while doing a search for "strong coffee in Japan." When I'm checking out the coffee section at the supermarket, all I see are レギュラーコーヒー / regyuraa koohii / regular coffee. I've already tried "Kilimanjaro blend," and maybe one other type of "regular coffee." Not what I was looking for. Of course, I could just get espresso, but that's not what I'm looking for either. Anybody got suggestions?