  The Wigner-Yanase skew information stands for the uncertainty about the
information on the values of observables not commuting with the conserved
quantity. The Wigner-Yanase skew information-based uncertainty relations can be
regarded as a complementarity to the conceptual Heisenberg uncertainty
principle. We present tight uncertainty relations in both product and summation
forms for two quantum channels based on the Wigner-Yanase skew information. We
show that our uncertainty inequalities are tighter than the existing ones.
