  Let $A$ be a noetherian Koszul Artin-Schelter regular algebra, and let $f\in
A_2$ be a central regular element of $A$. The quotient algebra $A/(f)$ is
usually called a (noncommutative) quadric hypersurface. In this paper, we use
the Clifford deformation to study the quadric hypersurfaces obtained from the
tensor products. We introduce a notion of simple graded isolated singularity
and proved that, if $B/(g)$ is a simple graded isolated singularity of 0-type,
then there is an equivalence of triangulated categories
$\underline{\text{mcm}}\,A/(f)\cong\underline{\text{mcm}}\,(A\otimes B)/(f+g)$
of the stable categories of maximal Cohen-Macaulay modules. This result may be
viewed as a generalization of Kn\"{o}rrer's periodicity theorem. As an
application, we study the double branch cover $(A/(f))^\#=A[x]/(f+x^2)$ of a
noncommutative conic $A/(f)$.
