The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 15, 2021

Filed:

Mar. 30, 2016
Applicant:

Konica Minolta, Inc., Tokyo, JP;

Inventors:

Kazuya Takahashi, Osaka, JP;

Toshinobu Yamaguchi, Takarazuka, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06Q 50/18 (2012.01); H04L 9/30 (2006.01); H04L 9/08 (2006.01);
U.S. Cl.
CPC ...
G06Q 50/18 (2013.01); H04L 9/0861 (2013.01); H04L 9/30 (2013.01);
Abstract

A computer-readable recording medium records a contract creation program for creating a contract image of a contract executed by parties each having private key. The program causes a computer to perform steps of: creating, for each party, a signature image of handwritten signature; creating, for each party, signature identification information for identifying the signature image; creating text identification information for identifying contract body text; creating, for each party, an intermediate cipher by enciphering the signature identification information of the party and the text identification information with the private key of the party; creating, for each party, a final cipher by enciphering the signature identification information of the party and the intermediate ciphers of all other parties with the private key of the party; creating an optical mark from each final cipher; and creating the contract image including the text, the signature images, and the optical marks disposed in predetermined columns.


Find Patent Forward Citations

Loading…