ALEXANDRIA, Va., March 3 -- United States Patent no. 12,566,918, issued on March 3, was assigned to TOYOTA JIDOSHA K.K. (Toyota, Japan).

"Document management system for adding appended information indicating changes made to the document to the revised document" was invented by Hiroyasu Yamashita (Toyota, Japan), Harufumi Muto (Miyoshi, Japan), Yosuke Ueno (Nagoya, Japan) and Kazuya Matsumoto (Nagoya, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Appended information is accumulated for each block of a first document before revision. A second document, which is a revised version of the first document, is divided into blocks. Each of the blocks of the first document, from which the appended information i...