US Patent Issued to Sony Group on Sept. 16 for "Magnetic recording medium and cartridge" (Japanese Inventor)

ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,417,784, issued on Sept. 16, was assigned to Sony Group Corp. (Tokyo).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "A magnetic recording medium is a tape-shaped magnetic recording medium and includes: a base; and a magnetic layer. An average thickness of the magnetic recording medium is 5.30 micro metre or less. The magnetic layer contains a chlorine atom and a nitrogen atom, an atomic concentration ratio (A2/A1) of a maximum chlorine atomic concentration A1 obtained by measuring a chlorine atomic concentration of the magnetic layer in a thickness direction of the magnetic...