We at DENSO WAVE wish QR Code to be used by as many people as possible. This is the reason why we made its specifications publicly available. At present, QR Coe is standardized based on respective national standards or international standards. Therefore, anyone can obtain its specifications without worrying about their applicability.
* DENSO WAVE has waived the rights to a patent in its possession (Patent No. 2938338) for standardized QR Codes only.
QR Code is standardized as shown in the table. It was approved as an international standard in June 2000. This shows that QR Code has been accepted internationally, ensuring its widespread acceptance not only in Japan, but also internationally .
QR Code Standardization
Approved as AIM International (Automatic Identification Manufacturers International) standard (ISS - QR Code)
Approved as JEIDA (Japanese Electronic Industry Development Association) standard (JEIDA-55)
Approved as JIS (Japanese Industrial Standards) standard (JIS X 0510)
Approved as ISO international standard (ISO/IEC18004)
Micro QR Code is Approved as JIS (Japanese Industrial Standards) standard (JIS X 0510)
Approved by GS1, an international standardization organization, as a standard for mobile phones
It is a outline of the QR Code specification.
21 x 21 - 177 x 177 modules (size grows by 4 modules/side)
Type & Amount of Data (Mixed use is possible.)
Information capacity and versions of the QR Code
8-bit bytes (binary)
Max. 7,089 characters
Max. 4,296 characters
Max. 2,953 characters
Max. 1,817 characters
Error correction (data restoration)
Error correction feature
Approx. 7% of codewords can be restored.
Approx. 15% of codewords can be restored.
Approx. 25% of codewords can be restored.
Approx. 30% of codewords can be restored.
Max. 16 symbols (printing in a narrow area etc.)
QR Code is established as an ISO (ISO/IEC18004) standard. QR Code specification can, therefore, be purchased from this organization.
Purchasing ISO Standards
Please search by inputting ISO No.18004 or X0510 to "Search and ISO Catalogue". http://www.iso.ch/iso/en/prods-services/ISOstore/store.html