ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,784,829, issued on Nov. 3, was assigned to The Chinese University of Hong Kong (Hong Kong).
"Method for storing data and optical storage" was invented by Shih-Chi Chen (Hong Kong), Fei Han (Hong Kong) and Songyun Gu (Hong Kong).
According to the abstract* released by the U.S. Patent & Trademark Office: "In this application, a 2D or 3D optical storage and a physical encryption method with ultrahigh storage density are presented. Designed information patterns can be written in an expanded hydrogel via laser patterning, followed by volume shrinkage and dehydration of the hydrogel to achieve physical encryption, ultrahigh storage density, and long-term storage. For decryption, the dehydra...