My Italian is not so good, but I think I've found them!
http://www.roland.it/patch.htm

"Il file SYN-01.MID e 02 contiene delle patches dedicate alla scheda di espansione SR-JV80-04"Vintage Synth"."

Well, I'll know it for sure tomorrow.
Is there a way to make a .syx bank file from a midi file?