Seagate and Regents of University of Minnesota Assigned Patent

Seagate Technology LLC, Cupertino, CA, and Regents of the University of Minnesota, Minneapolis, MN, has been assigned a patent (10,249,335) developed by Victora, Randall, New Brighton, MN, Liu, Zengyuan, St. Paul, MN, Huang, Pin-wei, Fremont, CA, Ju, Ganping, Pleasanton, CA, and Thiele, Jan-Ulrich, Sunnyvale, CA, for a “composite HAMR media structure for high areal density.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A heat-assisted magnetic recording media structure with exchange-coupled composite layer structure may be utilized in a data storage device. The heat-assisted magnetic recording disk structure can have a FePt-based layer as a storage layer and a FePt-based or a CoPt-based magnetic layer with higher Curie temperature as a write layer. The interface between the write layer and the storage layer may be separated by an exchange control layer. The composite structure can be optimized to reduce jitter for high density data storage by tuning the exchange coupling between the write layer and storage layer.”

The patent application was filed on September 22, 2017 (15/713,023).