ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,536,337, issued on Jan. 27, was assigned to Le-Techs Inc. (Tokyo).
"Management device and program" was invented by Takashi Ogura (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a management device and a program with which it is possible to easily discriminate between the alteration and correction of an electronic document. A management device 1 for managing a user's electronic documents, the management device 1 comprising: a document acquisition unit 11 for acquiring an electronic document; an indication acquisition unit 12 for acquiring an indication to create a signature for the acquired electronic document; a gene...