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Canadian application, no grantCanada

Multicolor image forming material and method of multicolor image formation

CA 2471250 A1 · Owner: Shirasaki, Yuichi · Inventors: Sugiyama, Susumu; Shirasaki, Yuichi; Nakamura, Hideyuki

CIPO record

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Abstract From the Canadian patent

A multicolor image forming material for laser thermal transfer comprising an image receiving sheet having a cushion layer and an image receiving layer and a thermal transfer sheet of at least four colors yellow, magenta, cyan, and , black that has a support and at least a photoelectric converting layer and an image forming layer both formed on the support characterized in that the , conditions 3 <= Rz / Ra <= 20 and 0.5 ~m <= Rz <= 3 ~m are satisfied where Ra and Rz are the roughnesses of the surface of the image receiving sheet. Another multicolor image forming material is disclosed wherein the ratio (OD/thickness) of the optical density (OD) of the image forming layer of each …

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed December 18, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 18, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 18, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 18, 2002
GrantedNo grant recorded
Term endedDecember 18, 2022
Patent numberCA 2471250 A1
Classification (IPC)B41M5/40 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedDec 18, 2002Term endedDec 18, 2022

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.