Has any one bought adult diapers in Tokyo? Could you give me some tips? Where can I find high quality, thick diapers there? Which brands are good and where to get them? I've heard of Unicharm which seems to be one of the biggest companies:

Business Operations | About Us | Unicharm Company Information

From what I heard about Japanese culture of cuteness, it seems reasonable to imagine they will have something like Bambino or AB Universe? Or is that just a wild dream?

Any tips or suggestions are greatly appreciated.