Glossary / History & Innovation / DENSO WAVE 2D Innovation DENSO WAVE 2D Innovation Embed Embed This Widget <script> tag <iframe> Theme Light Dark Sepia Copy Copied! Widget powered by . Free, no account required. DENSO WAVE's 1994 invention of QR Code, the first widely-adopted 2D barcode for consumer use. Related Terms QR Code 2D Barcode Evolution