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.
Patent No.:
Date of Patent:
Mar. 03, 2015
Filed:
Apr. 29, 2013
Disco Corporation, Tokyo, JP;
Disco Corporation, Tokyo, JP;
Abstract
An information exchanging method using a two-dimensional code and a two-dimensional code reader. An original sheet is prepared by writing a first two-dimensional code and a second two-dimensional code. The first two-dimensional code is readable by the code reader, whereas the second two-dimensional code is unreadable by the code reader. A monochrome copy sheet is prepared by monochromatically copying the original sheet, so that the monochrome copy sheet includes a third two-dimensional code as a monochrome copy of the first two-dimensional code and a fourth two-dimensional code as a monochrome copy of the second two-dimensional code. Accordingly, the third two-dimensional code is unreadable by the code reader, whereas the fourth two-dimensional code is readable by the code reader. Information exchange is performed by using the original sheet and the monochrome copy sheet.