Image forming material

Printing – Planographic – Lithographic plate making – and processes of making or using...

Reexamination Certificate

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Details

C101S465000, C101S453000, C101S456000, C101S454000, C430S332000, C430S302000, C430S348000, C430S343000, C503S218000

Reexamination Certificate

active

07146909

ABSTRACT:
An image forming material, a lithographic printing plate precursor and a lithographic printing method, in which a color image with good visibility is obtained by laser exposure, are provided, wherein the image forming material and the lithographic printing plate precursor each comprising a support and a layer comprising a compound represented by formula (1) which changes from a colorless state to a colored state by the effect of heat; and a lithographic printing method comprising on-press development using the lithographic printing plate precursor:

REFERENCES:
patent: 4008067 (1977-02-01), Hirono et al.
patent: 4978759 (1990-12-01), Jouin et al.
patent: 5712223 (1998-01-01), DeBoer et al.
patent: 5717106 (1998-02-01), DeBoer et al.
patent: 6461804 (2002-10-01), Deroover
patent: 2938397 (1999-06-01), None
patent: 2000-211262 (2000-08-01), None
patent: 2001-277740 (2001-10-01), None
patent: 2002-137562 (2002-05-01), None

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