I'm not sure how to actually get the logo in the game (haven't beaten it yet), but the ending logo is at 0x7c470 for those using a tile editor. Not sure how to actually arrange the tiles to make something meaningful out of it, though. It looks sort of like a... yin-yang planet?
Edit: Also, the fax number shown in these tiles is 04-265467. Of course, this get no relevant hits on Google. But guess where area code 04 is? Taichung. Of course.