US4030922A — Image recording method

Claim 1

Independent Claim 165 words

An image recording method using image-wise modulated radiation comprising forming electric latent images of the image-wise modulated radiation on two recording surfaces, said surfaces being on opposite sides of a support; and then converting said electric latent images to an edge enhanced first image and a second image non-edge enhanced, or edge enhanced to a lesser degree in comparison with said first image, wherein said first and second images are formed from said latent image using one of the following combinations (i) - (ix): ______________________________________ Non-edge Edge Enhanced First Image Enhanced Second Image ______________________________________ (i) Carlson process electro- Photomigration recording photography method (ii) Carlson process electro- Photoelectrophoretic recording photography method (iii) Ionographic method Photomigration recording method (iv) Ionographic method Photoelectrophoretic recording method (v) Inversion electric Photomigration recording field electrophotography method (vi) Inversion electric field Photoelectrophoretic recording electrophotography method (vii) Carlson process electro- Carlson process electrophoto- photography graphy (viii) Carlson process electro- Combination of ionography photography and Photomigration recording method (ix) Ionographic method Ionographic method ______________________________________

Claim 2

Dependent Claim 165 words

An image recording method using image-wise modulated radiation comprising forming electric latent images of the image-wise modulated radiation on two recording surfaces, said surfaces being on opposite sides of a support; and then converting said electric latent images to an edge enhanced first image and a second image non-edge enhanced, or edge enhanced to a lesser degree in comparison with said first image, wherein said first and second images are formed from said latent image using one of the following combinations (i) - (ix): ______________________________________ Non-edge Edge Enhanced First Image Enhanced Second Image ______________________________________ (i) Carlson process electro- Photomigration recording photography method (ii) Carlson process electro- Photoelectrophoretic recording photography method (iii) Ionographic method Photomigration recording method (iv) Ionographic method Photoelectrophoretic recording method (v) Inversion electric Photomigration recording field electrophotography method (vi) Inversion electric field Photoelectrophoretic recording electrophotography method (vii) Carlson process electro- Carlson process electrophoto- photography graphy (viii) Carlson process electro- Combination of ionography photography and Photomigration recording method (ix) Ionographic method Ionographic method ______________________________________

Claim 3

Dependent Claim 49 words

The method as described in claim 1, wherein said first image is obtained by a recording method using an external electric field generated by said electric latent image and said second image is obtained by a recording method using an internal electric field generated by said electric latent image.

Claim 4

Dependent Claim 102 words

The method as described in claim 2, wherein said edge enhanced image is formed by image-wise exposing a uniformly charged photoconductive insulating layer to form an electrostatic latent image and developing the thus formed latent image to provide a visible image by depositing charged particles by electrostatic interaction, while said non-edge enhanced image is formed by image-wise exposing a uniformly charged photosensitive layer which comprises a softenable layer and a photoconductive particulate material dispersed therein and then softening said layer by the action of heat and/or a solvent, whereby said particulate material image-wise migrates towards a substrate to provide a visible image.

Claim 5

Dependent Claim 108 words

The method as described in claim 2, wherein said edge enhanced image is formed by image-wise exposing a uniformly charged photoconductive insulating layer to form an electrostatic latent image and developing the thus formed latent image to provide a visible image by depositing charged particles by electrostatic interaction, while said non-edge enhanced image is prepared by image-wise exposing a photosensitive suspension positioned between two electrodes, said suspension comprising a photoconductive particulate material and an electrically insulating liquid, while applying an electric potential between said electrodes, whereby said particulate material is distributed in an imagewise - fashion on at least one of said electrodes to yield a visible image.

Claim 6

Dependent Claim 77 words

The method as described in claim 2, wherein said recording method using an external electric field is an ionographic recording method and said recording method using an internal electric field comprises image-wise exposing a uniformly charged photosensitive layer which comprises a softenable layer and a photoconductive particulate material dispersed therein and then softening said layer by the action of heat and/or a solvent, whereby said particulate material image-wise migrate towards a substrate to provide a visible image.

Claim 7

Dependent Claim 81 words

The material as described in claim 2, wherein said recording image using an external electric field is an ionographic recording method and said recording method using an internal electric field comprises image-wise exposing a photosensitive suspension positioned between two electrodes, said suspension comprising a photoconductive particulate material and an electrically insulating liquid, while applying an electric potential between said electrodes, whereby said particulate material is distributed in an imagewise-fashion on at least one of said electrodes to yield a visible image.

Claim 8

Dependent Claim 124 words

The method as described in claim 2, wherein said recording method using an external electric field comprises uniformly charging the surface of a sensitive material which comprises a photoconductive layer formed on an insulating layer carried on a conductive support, image-wise exposing said sensitive material, and charging the surface of said sensitive material, simultaneously with said exposing, to a polarity opposite to that of the first uniform charging, and said recording method using an internal electric field comprises image-wise exposing a uniformly charged photosensitive layer which comprises a softenable layer and a photoconductive particulate material dispersed therein and then softening said layer by the action of heat and/or a solvent, whereby said particulate material image-wise migrate towards a substrate to provide a visible image.

Claim 9

Dependent Claim 128 words

The method as described in claim 2, wherein said recording method using an external electric field comprises uniformly charging the surface of a sensitive material which comprises a photoconductive layer formed on an insulating layer carried on a conductive support, image-wise exposing said sensitive material, and charging the surface of said sensitive material, simultaneously with said exposing, to a polarity opposite to that of the first uniform charging and said recording method using an internal electric field comprises image-wise exposing a photosensitive suspension positioned between two electrodes, said suspension comprising a photoconductive particulate material and an electrically insulating liquid, while applying an electric potential between said electrodes, whereby said particulate material is distributed in an imagewise-fashion on at least one of said electrodes to yield a visible image.

Claim 10

Dependent Claim 103 words

The method as described in claim 1, wherein said first image is obtained by a process which comprises image-wise exposing a uniformly charged photoconductive insulating layer to form an electrostatic latent image and developing the thus formed latent image to provide a visible image by depositing charged particles by electrostatic interaction, without a development electrode, and said second image is obtained by a process which comprises image-wise exposing a uniformly charged photoconductive insulating layer to form an electrostatic latent image and developing the thus formed latent image to provide a visible image by depositing charged particles by electrostatic interaction, with a development electrode.

Claim 11

Dependent Claim 213 words

The method as described in claim 1, wherein said first image is obtained by the process which comprises image-wise exposing a uniformly charged photoconductive insulating layer to form an electrostatic latent image and developing the thus formed latent image to provide a visible image by depositing charged particles by electrostatic interaction, without a development electrode, and said second image is obtained by a method comprising irradiating a material capable of generating photoelectrons, as charged particles, or a gas capable of being dissociated, as charged particles, according to the impinging intensity of ionizing radiation, with ionizing radiation containing image information, collecting the charged particles with the aid of an external electric field onto the surface of a recording material comprising an electrically insulating material and pigment particles, said insulating material being softenable or dissolvable with a solvent or softenable or meltable by heat and said pigment being capable of retaining an electrostatic charge thereon, thus forming an electrostatic latent image corresponding to the image information, and when the recording material includes a solvent-softenable or dissolvable material applying a solvent to the recording material or when the recording material includes a heat-softenable or meltable material, heating the recording material to form a visible image, whereby the pigment particles selectively deposit to form an image pattern.

Claim 12

Dependent Claim 21 words

The method as described in claim 1, wherein said first image and said second image have different hues from each other.

Claim 13

Dependent Claim 29 words

The method as described in claim 11, wherein a combination of said different hues is one selected from the group consisting of red-cyan, green-magenta, blue-yellow, cyan-magenta, cyan-yellow, and magenta-yellow.

Claim 14

Dependent Claim 34 words

The method as described in claim 1, wherein said radiation is radiation which is transmitted through an object and/or a visible light generated based in an image-wise pattern in response to said transmitted radiation.

Claim 15

Dependent Claim 12 words

The method as described in claim 13, wherein said radiation comprises X-rays.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1980-06-20	1980-12-20	1981-06-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1984-06-20	1984-12-20	1985-06-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1988-06-20	1988-12-20	1989-06-21	$7700.00	Window Closed / Lapsed

Image recording method

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