The Decision That Made QR Codes Unstoppable

QR codes emerged from a mundane factory challenge at Toyota, but their worldwide adoption stems not from clever engineering but from Denso Wave's choice to leave the patent unenforced and embrace an open standard. This decision allowed smartphone makers, payment networks, and developers to build upon the technology without licensing barriers. The lesson resonates beyond QR codes: open standards and permissive licensing can be as transformative as the innovation itself.