Typically the American Red Cross collects blood in the US and in Japan the Japanese Red Cross takes care of this task.
Above is Kanayama Station at 6am, I usually transfer here on my way to work in the morning. Recently this large poster was hung from the rafters, it's from the Japanese Red Cross asking people to donate nearby. The mascot for the red cross is Kenketsu-san, a bunny with blood red ears. This blood red ear'ed bunny kind of freaks me out. Each evil bunny has a name, named after the type of blood it wants.