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:
Sep. 08, 2020
Filed:
Dec. 19, 2016
Denso Wave Incorporated, Chita-gun, Aichi-pref, JP;
Terrara Code Research Institute, Inc., Tokai-shi, Aichi, JP;
Nobuyuki Teraura, Tokai, JP;
DENSO WAVE INCORPORATED, Aichi-pref., JP;
TERRARA CODE RESEARCH INSTITUTE, INC., Tokai-shi, JP;
Abstract
An optical code is readable by a generally used reading device, and optically readable as an information code that can appropriately prevent abuse due to duplication. In this optical code, data is recorded with a pattern of a plurality of light-color modules having high visible light reflectance and a plurality of dark-color modules having visible light reflectance lower than light-color modules. At least either the light-color modules or the dark-color modules are configured to include a first module and a second module having reflectances different from each other for invisible light of a predetermined wavelength. Thus, data is recorded as a readable pattern of modules, the pattern being differently observed between when irradiated with visible light and when irradiated with the invisible light of a predetermined length.