No. Biohazard is the name of the series in Japan, it's named Resident Evil here because of copyright laws in the states. Someone was already using the name Biohazard for something. So... they called it Resident Evil. Unless Japan hogs stuff for their own version (which Sqaure usually does) then they're the same. Just different default languages I suppose. Capcom isn't like Square, so you don't have to worry much about missing out on anything.