We introduce a new family of classes of operators which is derived from the Furuta inequality. It is closely related to log-hyponormal operators defined by Tanahashi, the classes $A(p)$ and absolute $p$-paranormal operators defined by Furuta-Ito-Yamazaki. We discuss some properties of operators in such classes and relations among them and extend results due to Furuta-Ito-Yamazaki.