> Vajra and Vajra 2 - A pair of LaserActive-exclusive rail shooters by Data West

Wait, Data West? Apparently there was indeed such a company: https://www.mobygames.com/company/6613/data-west/

They're founded later than Data East, but also Japanese. They don't appear to be any sort of spinoff of Data East or anything, but I have to wonder if with the name they were hoping to confuse people somewhat into thinking they were Data East, or to ride on their reputation...