Indeed, I'll split these.
edit: done
https://imcdb.org/vehicles.php?make=FSC-Star for the Polish company, since "FSC Star" was its full name
https://imcdb.org/vehicles.php?make=Star-Car for the US marque
https://imcdb.org/vehicles.php?make=Star-mc for the Yamaha motorcycles
https://imcdb.org/vehicles.php?make=Star for the UK marque