QR Codes Trace Origins to 1994 Toyota Supplier Denso
QR codes were created in 1994 by Denso, a Toyota parts supplier, as a way to speed up factory scanning by packing far more data into a single code than a barcode could hold. Engineer Masahiro Hara led the project, drawing on the board game Go for the grid design and testing printed materials to find a black-to-white ratio that scanners could reliably detect. The format spread slowly through Japanese camera phones before becoming a global fixture in payments, tickets, logins and marketing.
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The format's revival after being dismissed as a marketing gimmick suggests how a niche industrial tool can become essential consumer infrastructure once compatible hardware, in this case smartphone cameras, becomes ubiquitous. Its growing role in payments and ticketing also means QR codes are increasingly attractive to scammers, which could push businesses and security teams to treat them with more scrutiny.
- Denso invented QR codes in 1994 to speed up Toyota factory scanning.
- The design's targeting squares rely on a 1:1:3:1:1 ratio discovered by engineer Masahiro Hara.
- QR codes took decades to go mainstream and are now used for payments, logins and tickets.
NeoPlex QR Code Scanner Stand — If QR codes are taking over checkout counters and warehouses, a dedicated scanner stand makes reading them fast and hands-free. It's a practical way to bring the efficiency Denso envisioned right into a small business or home office setup.
See NeoPlex QR Code Scanner Stand on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: techspot.com — Julio Franco, 2026-10-01
Published there as: “QR Codes Explained: How They Work and Why They're Everywhere”
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