US Patent Issued to SONY GROUP on June 2 for "Magnetic recording medium and cartridge" (Japanese Inventors)

ALEXANDRIA, Va., June 2 -- United States Patent no. 12,646,531, issued on June 2, was assigned to SONY GROUP Corp. (Tokyo).

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

According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a magnetic recording medium and a magnetic recording cartridge. An average thickness of the magnetic recording medium tT is tTless than equal to5.3 micro metre, a ratio (A2/A1) of an average creep slope A2 at a temperature of 32deg C. and a humidity of 80% RH to an average creep slope A1 at a temperature of 32deg C. and a humidity of 20% RH is 1.440 or less, and a ratio (Tan Delta2/Tan Delta1) of an average Tan Delta2 at a temp...