  We first normalize the derivative Weierstrass $\wp'$-function appearing in
Weierstrass equations which give rise to analytic parametrizations of elliptic
curves by the Dedekind $\eta$-function. And, by making use of this
normalization of $\wp'$ we associate certain elliptic curve to a given
imaginary quadratic field $K$ and then generate an infinite family of ray class
fields over $K$ by adjoining to $K$ torsion points of such elliptic curve. We
further construct some ray class invariants of imaginary quadratic fields by
utilizing singular values of the normalization of $\wp'$, as the $y$-coordinate
in the Weierstrass equation of this elliptic curve, which would be a partial
result for the Lang-Schertz conjecture of constructing ray class fields over
$K$ by means of the Siegel-Ramachandra invariant.
