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Class Information
Number: 250/317.1
Name: Radiant energy > With infrared or thermal pattern recording > Thermal copying of documents
Description: Subject matter which includes additionally a source of infrared radiation and a sheet type document having visual information thereon which information selectively absorbs the radiation from the source to form a thermal image of the information thereon, the responsive surface being responsive to the thermal image to cause the recording means, a copy sheet, to form a latent or visual duplicate of the information.

Sub-classes under this class:

Class Number Class Name Patents
250/319 With conveying means 58
250/318 With image transfer device 70

Patents under this class:
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Patent Number Title Of Patent Date Issued
8268657 Laser induced thermal imaging apparatus Sep. 18, 2012
7816649 Laser patterning apparatus Oct. 19, 2010
7797034 3-D in-vivo imaging and topography using structured light Sep. 14, 2010
7167742 Utilization of an infrared probe to discriminate between materials Jan. 23, 2007
6952294 Method of reading an image, method of forming a color image, device for forming a color image, silver halide color photosensitive material, and a device for processing a photosensitive materia Oct. 4, 2005
6851609 Image reading apparatus and copier Feb. 8, 2005
6824961 Heat developing method and heat developing apparatus Nov. 30, 2004
6573503 Plastic light selective element for imaging applications Jun. 3, 2003
6539342 Sorting objects based on physical characteristics Mar. 25, 2003
6469809 Image recording system Oct. 22, 2002
6057548 Increased quality thermal image recording technique May. 2, 2000
5985514 Imaging member containing heat sensitive thiosulfate polymer and methods of use Nov. 16, 1999
5907735 Photosensitive material processing apparatus May. 25, 1999
5614340 Migration imaging, optionally with dyes or pigments to effect bleaching Mar. 25, 1997
5565287 Migration imaging with dyes or pigments to effect bleaching Oct. 15, 1996
5497001 Flash tube devices Mar. 5, 1996
5414262 Imaging device and method for developing, duplicating and printing graphic media May. 9, 1995
5411825 Heat development process of migration imaging members May. 2, 1995
5344731 Migration imaging system Sep. 6, 1994
5311017 Imaging device and method for developing, duplicating and printing graphic media May. 10, 1994
5270733 Material transport that selectively contacts different materials Dec. 14, 1993
5268708 Laser thermal printer with an automatic material supply Dec. 7, 1993
5264867 Method and apparatus for selectively sorting image-bearing sheets from scrap sheets Nov. 23, 1993
5227265 Migration imaging system Jul. 13, 1993
5151595 Imaging device and method for developing, duplicating and printing graphic media Sep. 29, 1992
5126760 Direct digital halftone color proofing involving diode laser imaging Jun. 30, 1992
5115304 Copying device with developing and transfer device May. 19, 1992
5081526 Copying apparatus which uses thermally developable photosensitive materials Jan. 14, 1992
5064743 Thermal transfer recording medium Nov. 12, 1991
5049472 Method and apparatus of recording image Sep. 17, 1991
4962314 Image transfer apparatus Oct. 9, 1990
4893010 Image recording apparatus Jan. 9, 1990
4841154 Thermal copying apparatus Jun. 20, 1989
4825074 Image recording apparatus Apr. 25, 1989
4800275 Heat-developing and transferring apparatus Jan. 24, 1989
4716291 Copying machine Dec. 29, 1987
4709149 Copying machine Nov. 24, 1987
4695528 Process for forming images using body with reversible fixable and temperature-variable light extinctions Sep. 22, 1987
4661703 Two-color copying machine Apr. 28, 1987
4660964 Image recording apparatus Apr. 28, 1987
4620096 Thermal developing and transferring method Oct. 28, 1986
4497887 Thermal development type diazo copying material with hydrophobic resin encapsulated coupler particle Feb. 5, 1985
4486527 Thermo-developable type diazo copying material with 2-naphthol coupler having long aliphatic chain amide substitution Dec. 4, 1984
4465931 Thermal duplicating apparatus Aug. 14, 1984
4421839 Heat-sensitive and photofixing recording sheet with diazosulfonate and acidic coupling agent therefore Dec. 20, 1983
4411979 Diazo type thermosensitive recording material Oct. 25, 1983
4405862 Thermosensitive data-carrier designed for the recording of information and a method of recording information on such a data-carrier Sep. 20, 1983
4379835 Black image from a thermographic imaging system Apr. 12, 1983
4346156 Electrophotographic-magnetic duplex imaging structure and method Aug. 24, 1982
4323775 Divided exposure method and device Apr. 6, 1982

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