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Class Information
Number: 503/200
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
Description: Material which is used to form a visible record by causing a substance to react chemically to form a color where there was no color, or to form a different color from the original, or a method of using such material.










Sub-classes under this class:

Class Number Class Name Patents
503/202 Color developed by mere decomposition of color-former 80
503/206 Component noncoextensive with substrate 149
503/203 Duplicating master 16
503/205 Having a color desensitizer 90
503/208 Having constituent defined in terms of melting temperature 281
503/209 Having nonchromogenic liquid spread-control or transfer-improving agent or component, color modifier, stabilizer or preservative 485
503/207 Having nonreactant particles of defined size 288
503/210 Heavy metal reactant 141
503/218 Identified color-former 205
503/225 Identified electron acceptor (developer) 505
503/216 Identified organic electron acceptor (developer) other than phenolic resin 551
503/214 Identified reactant isolating material or capsule wall material or binder resin 376
503/213 Identified solvent or dispersant for color-former, other than mere mineral oil 168
503/201 Method of use, kit, or combined with marking instrument or organ 525
503/204 Plural colors or plural diverse systems 199
503/226 Spatial relationship specified between color-former and developer 718


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12

Patent Number Title Of Patent Date Issued
8673812 Thermosensitive recording medium Mar. 18, 2014
8637114 Laser imageable paper Jan. 28, 2014
8603943 Thermosensitive recording material Dec. 10, 2013
8545738 Stabilized photochromic ink for reusable paper annotation Oct. 1, 2013
8541339 Reversible thermosensitive recording medium and method for producing the same Sep. 24, 2013
8530376 Reversible thermosensitive recording medium Sep. 10, 2013
8470732 Thermosensitive recording material comprising a back coating Jun. 25, 2013
8470734 Thermosensitive recording material Jun. 25, 2013
8465622 Paper substrate containing a wetting agent and having improved print mottle Jun. 18, 2013
8320811 Image recording medium, image recording medium reusing apparatus, image forming apparatus using the same and image recording medium reusing method Nov. 27, 2012
8303858 Photochromic polymer with binder Nov. 6, 2012
8283283 Thermal labels Oct. 9, 2012
8283287 Thermosensitive recording material Oct. 9, 2012
8277696 Thermochromic color-memory composition, and thermochromic color-memory microcapsule pigment having the composition encapsulated therein Oct. 2, 2012
8268746 Thermosensitive recording material Sep. 18, 2012
8227379 Thermosensitive recording medium and recording method Jul. 24, 2012
8211826 Two-sided thermal media Jul. 3, 2012
8193116 Heat-sensitive recording material Jun. 5, 2012
8168565 Thermal recording adhesive label May. 1, 2012
8147905 Heat-sensitive recording material and production method thereof Apr. 3, 2012
8143191 Thermosensitive recording material Mar. 27, 2012
8114812 Two-sided thermal paper Feb. 14, 2012
8105977 Counterfeit prevention paper and manufacturing method thereof Jan. 31, 2012
8101547 Transparent thermal recording medium Jan. 24, 2012
8076058 Color forming compositions and associated methods Dec. 13, 2011
8062994 Thermal recording material and process for the production thereof Nov. 22, 2011
8058209 Heat-sensitive recording material Nov. 15, 2011
8008229 Thermosensitive recording material Aug. 30, 2011
8003568 Thermosensitive recording material Aug. 23, 2011
7989529 Thermosensitive adhesive composition, method of manufacturing the same and thermosensitive adhesive material Aug. 2, 2011
7985711 Thermosensitive recording material and recording method using the same Jul. 26, 2011
7968494 Heat-sensitive recording material Jun. 28, 2011
7939464 Structure with a built-in recording medium, a laminate comprising the structure and method for recording in non-contact manner using the structure and the laminate May. 10, 2011
7906458 Heat-sensitive recording material and production method thereof Mar. 15, 2011
7902117 Thermal paper Mar. 8, 2011
7846871 Heat-sensitive recording medium and use thereof Dec. 7, 2010
7846984 Method and apparatus for recycling ultraviolet curing resin, and method for manufacturing optical recording medium using that recycling method Dec. 7, 2010
7833573 Method for producing thermosensitive recording material and recording material produced according to said method Nov. 16, 2010
7816302 Printable identification medium for use with thermal printers Oct. 19, 2010
7744985 Image-recording material support, method for producing the same, and image recording material Jun. 29, 2010
7709416 Heat-sensitive recording material May. 4, 2010
7648842 Security paper authentication system with dual instant color Jan. 19, 2010
7645719 Thermal paper with security features Jan. 12, 2010
7635661 Heat-sensitive recording material Dec. 22, 2009
7632554 Wallpaper having thermochromic material layer and manufacturing method thereof Dec. 15, 2009
7618922 Thermally-sensitive recording medium Nov. 17, 2009
7618921 Image formation material Nov. 17, 2009
7618920 Thermal recording sheet and thermal recording sheet pack Nov. 17, 2009
7576036 Heat-sensitive recording material, heat-sensitive recording method and method for manufacturing heat-sensitive recording material Aug. 18, 2009
7560415 Reversible multicolor recording medium and recording method using it Jul. 14, 2009

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