  In this article, we construct some examples of noncommutative projective
Calabi-Yau schemes by using noncommutative Segre products and quantum weighted
hypersurfaces. We also compare them with commutative Calabi-Yau varieties and
examples by Kanazawa. In particular, we show that some of our constructions are
essentially new examples of noncommutative projective Calabi-Yau schemes.
