US Patent Issued to SONY GROUP on Sept. 1 for "Magnetic recording medium" (Japanese Inventors)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,725,634, issued on Sept. 1, was assigned to SONY GROUP Corp. (Tokyo).

"Magnetic recording medium" was invented by Minoru Yamaga (Tokyo) and Sogo Oikawa (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A main object of the present technology is to improve reliability and resolution of a magnetic recording tape by controlling distribution of the binder in the underlayer and a magnetic surface.The present technology provides a magnetic recording medium including: a magnetic layer; an underlayer; and a base layer in this order, in which the underlayer contains a chlorine-containing binder, and in the underlayer, a part having a chlorine count equal to ...