ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,499,189, issued on Dec. 16, was assigned to HITACHI ASTEMO LTD. (Ibaraki, Japan).
"Method for determining authenticity of recording medium and recording medium" was invented by Shinji Inoue (Osaka, Japan) and Yusuke Shimizu (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method is provided that determines authenticity of a second recording medium mounted in a second device by using a first device mounted with a first recording medium. A non-user area of the first recording medium previously records first identification information and first algorithm data. A controller of the first recording medium causes a first display device to display...