  On the universal seesaw mass matrix model, which is a promising model of the
unified description of the quark and lepton mass matrices, the behaviors of the
gauge coupling constants and intermediate energy scales in the SO(10)_L\times
SO(10)_R model are investigated related to the neutrino mass generation
scenarios. The unification of the gauge coupling constants in the framework of
the non-SUSY model is possible if the SO(10) symmetry is broken via Pati-Salam
type symmetries.
