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tQR

variant of QR code for controlling opening and closing of platform screen doors
Place trademark Q136466742
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tQR

Summary

tQR is a trademark[1]. tQR draws 1 Wikipedia views per month (trademark category, ranking #352 of 967).[2]

Key Facts

  • tQR is credited with the discovery of Denso Wave[3].
  • tQR is credited with the discovery of Tokyo Metropolitan Bureau of Transportation[4].
  • tQR's image is recorded as 313-qr.jpg[5].
  • tQR's instance of is recorded as trademark[6].
  • tQR's based on is recorded as QR code[7].
  • tQR's subclass of is recorded as 2D barcode[8].
  • tQR's Commons category is recorded as TQR codes[9].

Body

Designation and Status

tQR's instance of is recorded as trademark[6].

Why It Matters

tQR draws 1 Wikipedia views per month (trademark category, ranking #352 of 967).[2]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [5] ↑ . Retrieved . wikidata.org.
  2. [6] ↑ . wikidata.org.
  3. [3] ↑ . denso-wave.com. Retrieved . denso-wave.com. Provenance: wikidata.org.
  4. [4] ↑ . denso-wave.com. Retrieved . denso-wave.com. Provenance: wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). tQR. Retrieved May 3, 2026, from https://4ort.xyz/entity/tqr
MLA “tQR.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/tqr.
BibTeX @misc{4ortxyz_tqr_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{tQR}}, year = {2026}, url = {https://4ort.xyz/entity/tqr}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): tQR — https://4ort.xyz/entity/tqr (retrieved 2026-05-03)

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