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Class Information
Number: 503/211
Name: Record receiver having plural interactive leaves or a colorless color former, method of use, or developer therefor > Having a colorless color-former, developer therefor, or method of use > Heavy metal reactant > Metal of atomic number 22-30
Description: Subject matter wherein the metal is titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper or zinc.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6440896 |
Imaging member with multifunctional coupler and oxidant |
Aug. 27, 2002 |
| 6403528 |
Developer for use with carbonless copy paper and photo imaging system |
Jun. 11, 2002 |
| 6383982 |
Color developer composition, aqueous dispersion, recording sheet and color developing ink |
May. 7, 2002 |
| 5665670 |
Recording element for direct thermosensitive printing |
Sep. 9, 1997 |
| 5527757 |
Recording material for direct thermal imaging |
Jun. 18, 1996 |
| 5527758 |
Direct thermal imaging process with improved tone reproduction |
Jun. 18, 1996 |
| 5525686 |
Polyvalent metal salt of salicyclic acid resin and process for preparing it |
Jun. 11, 1996 |
| 5489501 |
Recording composition |
Feb. 6, 1996 |
| 5482913 |
Recording sheet |
Jan. 9, 1996 |
| 5447901 |
Color-developing compositions and their use |
Sep. 5, 1995 |
| 5446009 |
Thermal recording sheet |
Aug. 29, 1995 |
| 5439869 |
Thermoreactive recording material of particular stability |
Aug. 8, 1995 |
| 5416058 |
Protected thermosensitive recording material |
May. 16, 1995 |
| 5350729 |
Developer sheet with structured clays and process thereof |
Sep. 27, 1994 |
| 5346878 |
Recording material |
Sep. 13, 1994 |
| 5330959 |
Enhanced speed carbonless paper |
Jul. 19, 1994 |
| 5328884 |
Pressure sensitive manifold sheet containing color developer composition |
Jul. 12, 1994 |
| 5326739 |
Process for producing 3,5-di(.alpha.-methylbenzyl)salicylic acid derivative, and use of polyvalent-metal-modified product thereof as color developer |
Jul. 5, 1994 |
| 5306688 |
Salicylic acid derivatives, the process for preparing the same and the heat-sensitive recording materials comprising thereof |
Apr. 26, 1994 |
| 5276001 |
Heat sensitive recording material |
Jan. 4, 1994 |
| 5260403 |
Color-developing composition, aqueous suspension of the composition, and color-developing sheet produced using the suspension and suitable for use in pressure-sensitive copying paper |
Nov. 9, 1993 |
| 5214021 |
Pressure sensitive copy article |
May. 25, 1993 |
| 5206208 |
Stabilization of thermal images |
Apr. 27, 1993 |
| 5206210 |
Heat-sensitive recording material |
Apr. 27, 1993 |
| 5137797 |
Image recording material containing salicylic acid developer and image recording process employing the same |
Aug. 11, 1992 |
| 5124308 |
Monosubstituted dithiooxamide compounds and their use |
Jun. 23, 1992 |
| 5096872 |
Recording material |
Mar. 17, 1992 |
| 5094999 |
Recording material |
Mar. 10, 1992 |
| 5087283 |
Sympathetic ink for ink jet printer |
Feb. 11, 1992 |
| 5075278 |
Chromogenic copy systems and methods |
Dec. 24, 1991 |
| 5043313 |
Thermosensitive recording material |
Aug. 27, 1991 |
| 5034370 |
Color developer for pressure-sensitive recording paper |
Jul. 23, 1991 |
| 5028581 |
Odorless multi-valent metal modified products of salicyclic acid copolymers, production processes thereof, and use thereof as color-developing agents for pressure-sensitive copying paper sheet |
Jul. 2, 1991 |
| 5024987 |
Recording material |
Jun. 18, 1991 |
| 5017546 |
Alkyl salicylate developer resin for carbonless copy paper and imaging use |
May. 21, 1991 |
| 4985392 |
Colored thermographic media |
Jan. 15, 1991 |
| 4971886 |
Recording medium having heat-sensitive chromogenic material, and image reproducing method by using the medium |
Nov. 20, 1990 |
| 4970193 |
Developer composition having improved blocking resistance |
Nov. 13, 1990 |
| 4952648 |
Production process of multivalent metal-modified salicylic acid/styrene resin, color-developing agent using the resin and suited for use in pressure-sensitive copying paper sheet and pressure- |
Aug. 28, 1990 |
| 4921832 |
Developer compositions having reduced yellowing |
May. 1, 1990 |
| 4920091 |
Recording material |
Apr. 24, 1990 |
| 4910186 |
Positive-acting thermographic materials |
Mar. 20, 1990 |
| 4910185 |
Heat-sensitive recording material |
Mar. 20, 1990 |
| 4902667 |
Pressure sensitive carbonless imaging system incorporating uncolored ferric organophosphates and uncolored chelates |
Feb. 20, 1990 |
| 4902668 |
Pressure sensitive carbonless imaging system incorporating uncolored ferric organophosphates and colored chelates |
Feb. 20, 1990 |
| 4895827 |
Thermally-responsive record material |
Jan. 23, 1990 |
| 4876233 |
Recording material |
Oct. 24, 1989 |
| 4871713 |
Heat-sensitive recording material |
Oct. 3, 1989 |
| 4870048 |
Color developer sheet |
Sep. 26, 1989 |
| 4861749 |
Heat-sensitive recording material |
Aug. 29, 1989 |
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