Board Thread:Questions and Answers/@comment-9307023-20200827122405/@comment-2070026-20200827172524

No. Ichigo's stolen Fullbring only powered him up and allows him to use Getsuga Tensho technique. If the Fullbring he had stolen enable him to use zanpakuto exactly like Ichigo, then his Bankai should've exactly like Ichigo's, but his is completely different. Also, from Ichigo's reaction when Ginjo used Bankai, it strongly indicates Ginjo still has his shinigami power. Plus, even before Ichigo, Ginjo has also killed and stolen a lot of shinigami powers, so I'm sure he has more than plenty shinigami power in him.