...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7387824 | Support for image recording medium and image recording medium made from the support A support for an image recording medium includes base paper, a polymer coating layer formed on both top and wire side surfaces, and a coating layer containing a pigment and an adhesive agent which is formed under the polymer coating layer on one or both side surface... | 06/17/2008 |
| 6946232 | Image-receiving element An image-receiving element for use in photographic and photothermographic diffusion transfer film units of the type where the image-receiving element is designed to be removed, or “peeled-apart” from a photosensitive element following exposure and photographic p... | 09/20/2005 |
| 6579656 | Half esters of isobutylene/maleic anhydride copolymer as attenuators of photographic film development A photographic film with a polymeric acid-reacting neutralizing layer comprising a half ester of isobutylene/maleic anhydride copolymer is provided herein. This polymeric acid-reacting neutralizing layer is used to attenuate a photographic film's developm... | 06/17/2003 |
| 6541177 | Diffusion transfer photographic film unit A self-developing diffusion transfer photographic film unit which includes a latent image which becomes visible upon photographic processing of the film unit. The latent image is formed with a chemical compound such as an indicator dye and the visible ima... | 04/01/2003 |
| 6468709 | Biaxially oriented image element with sharpening agent The invention relates to an element consisting essentially of a photographic element comprising a base material having an upper surface comprising an oriented sheet, at least one photosensitive silver halide layer, and at least one sharpness enhancing age... | 10/22/2002 |
| 6420081 | Process for the production of back-coating recording material for the production of offset printing plates The invention relates to a process for the production of a photosensitive recording material for the production of offset printing plates which comprises a dimensionally stable, two-dimensional support of a metal or metal alloy and a silver halide-contain... | 07/16/2002 |
| 6403278 | Image-receiving element An image-receiving element for use in photographic and photothermographic dirrufsion transfer film units of the type where the image-receiving element is designed to be removed, or "peeled-apart" from a photosensitive element following exposure and photog... | 06/11/2002 |
| 6342331 | Diffusion transfer film units with two receiving layers The invention relates to a diffusion transfer type film unit which can produce the same two picture prints at one shot of photographing. The film unit comprises a first sheet and a second sheet. The first sheet includes at least transparent sheet through ... | 01/29/2002 |
| 6303262 | Photomask material, photomask and methods for the production thereof Disclosed are a photomask material for preparing a photomask having excellent heat resistance, ultraviolet resistance and image strength, a photomask having the above properties and methods for the production thereof, and the present invention provides a ... | 10/16/2001 |
| 6261733 | Silver salt diffusion transfer material sensitized for blue light According to the present invention, there is provided a silver salt diffusion transfer material, comprising on a hydrophilic surface of a support in the order given (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive... | 07/17/2001 |
| 6221554 | Self developing-film unit There is described a self-developing film unit which has a photosensitive member and an image-receiving member and wherein one outermost surface of the film unit comprises a support layer carrying a layer of a releasable material and a layer of an adhesiv... | 04/24/2001 |
| 6187503 | Lithographic printing plate There is disclosed a lithographic printing plate which comprises a grained and anodized aluminum support, a silver halide emulsion layer and a physical development nuclei layer between the aluminum support and the silver halide emulsion layer, and at leas... | 02/13/2001 |
| 6146808 | Method for preparing an imaging element for making an improved printing plate according to the silver salt diffusion transfer process According to the present invention there is provided a method for preparing a silver salt diffusion transfer imaging element comprising the steps of coating in the order given on a grained and anodized side of an aluminum support (i) an image receiving la... | 11/14/2000 |
| 6146807 | Method for preparing an imaging element for making an improved printing plate according to the silver salt diffusion transfer process According to the present invention there is provided a method for preparing a silver salt diffusion transfer imaging element comprising the steps of coating in the order given on a grained and anodized side of an aluminum support (i) an image receiving la... | 11/14/2000 |
| 6146819 | Silver halide photographic light-sensitive material There is disclosed a silver halide photographic light-sensitive material which comprises a polyester film support, at least one subbing layer containing a self-emulsifiable isocyanate compound having an ethylene oxide recurring unit and two or more isocya... | 11/14/2000 |
| 6136496 | Imaging element for making an improved printing plate according to the silver salt diffusion transfer process According to the present invention there is provided an imaging element comprising in the order given on a grained and anodized side of an aluminum support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer co... | 10/24/2000 |
| 6120971 | Lithographic printing plate material There is disclosed an aluminum lithographic printing plate material which comprises an aluminum substrate, a silver halide emulsion layer and a physical development nuclei layer between the aluminum substrate and the silver halide emulsion layer, said sil... | 09/19/2000 |
| 6027851 | Method for preparing an aluminum foil for use as a support in lithographic printing plates According to the present invention there is provided a method for preparing a silver complex diffusion transfer reversal material comprising a grained and anodized aluminum foil as support and a photosensitive silver halide emulsion coating, characterized... | 02/22/2000 |
| 6017673 | Lithographic printing plate and treating liquids for such plate comprising a hydrophilic amphoretic block copolymer A lithographic printing plate that works according to the silver salt diffusion transfer reversal process is disclosed. The lithographic properties of said plate can be improved by incorporating a hydrophilic amphoteric block copolymer, comprising a non-i... | 01/25/2000 |
| 6004718 | Method for forming images of a sepia tone A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process. When images are formed by an optional image f... | 12/21/1999 |
| 5968707 | Transfer material for use in thermal transfer and method of forming thermal transfer images A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process. When images are formed by an optional image f... | 10/19/1999 |
| 5955239 | Strippable biaxially oriented base for imaging element The invention relates to a photographic element comprising a paper base, at least one photosensitive silver halide layer, a layer of biaxially oriented polyolefin sheet between said paper base and said silver halide layer, wherein there is located between... | 09/21/1999 |
| 5871879 | Material comprising a layer on a glass support According to the present invention an element comprising a layer on a glass support characterised in that: (i) the thickness of said glass support is less than 1.2 mm, (ii) said glass support has a failure stress (under tensile stress) equal to or higher ... | 02/16/1999 |
| 5869217 | Silver halide photographic material and photographic element A silver halide photographic material which has a layer containing a swellable inorganic stratifying compound.... | 02/09/1999 |
| 5858608 | Diffusion transfer photosensitive film unit for silver transfer image There are described diffusion transfer photosensitive film units which include a novel antihalation layer comprising an antihalation material, titanium dioxide and a binder. Diffusion transfer film units prepared according to the invention provide silver ... | 01/12/1999 |
| 5851720 | Transfer material for use in thermal transfer and method of forming thermal transfer images A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process. When images are formed by an optional image f... | 12/22/1998 |
| 5851722 | Imaging element for making an improved printing plate according to the silver salt diffusion transfer process The present invention provides an imaging element comprising in the order given on a hydrophilic base (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water perme... | 12/22/1998 |
| 5851721 | Photothermographic elements A film formed by stretching and heat-fixing a melt of a polyester and a polyolefin which has a melting temperature lower than that of the polyester is employed as a support for a diffusive transfer-type photothermographic material, which prevents processi... | 12/22/1998 |
| 5811216 | Imaging element for making an improved printing plate according to the silver salt diffusion transfer process The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) an intermediate layer and (iii) a photosensitive layer containi... | 09/22/1998 |
| 5800961 | Imaging element and method for making a lithographic printing plate according to the silver salt diffusion transfer process The present invention provides an imaging element comprising on a support in the order given (i) a base layer comprising a binder in an amount between 1 and 4 g/m2, (ii) a photosensitive layer comprising a spectrally sensitised silver halide em... | 09/01/1998 |
| 5795697 | Imaging element for making an improved printing plate according to the silver salt diffusion transfer process The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion bein... | 08/18/1998 |
| 5756253 | Photographic element and method There are described novel photographic processing compositions, film units and processes for use in diffusion transfer photographic systems. More particularly, there is described a method for forming a diffusion transfer image photographic processing of d... | 05/26/1998 |
| 5747219 | Image-receiving elements There are described novel image-receiving elements for use in diffusion transfer photographic systems. The novel image-receiving elements include a layer capable of reducing the light-absorbing capacity of an optical filter agent. The layer comprises nony... | 05/05/1998 |
| 5712076 | Imaging element for making an improved printing plate according to the silver salt diffusion transfer process The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing one or more silver halide emu... | 01/27/1998 |
| 5698367 | Lithographic printing plate Disclosed is a lithographic printing plate having a silver halide emulsion layer and a layer containing physical development nuclei on a support, the improvement wherein a water-soluble polymer having a structural unit represented by the formula (I): ... | 12/16/1997 |
| 5695916 | Processing liquid for lamination processing A thickened processing solution containing inert particles can be used in lamination processing to insure even processing.... | 12/09/1997 |
| 5672461 | Storage stability of an imaging element for making a printing plate according to the silver salt diffusion transfer process The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei and (ii) a photosensitive layer containing a silver halide emulsion b... | 09/30/1997 |
| 5665516 | Imaging element for making lithographic printing plates according to the silver salt diffusion transfer process The present invention provides an imaging element comprising in the order given on a hydrophilic surface of a support (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion bein... | 09/09/1997 |
| 5643710 | Imaging element and method for making lithographic printing plates according to the silver salt diffusion transfer process The present invention provides an imaging element comprising in the order given (i) a hydrophilic base, (ii) an image receiving layer containing physical development nuclei, (iii) a photosensitive layer containing a silver halide emulsion being in water p... | 07/01/1997 |
| 5641605 | Lithographic printing plate Disclosed is a lithographic printing plate excellent in scratch resistance, stain resistance, print image quality and ink-removability. The lithographic printing plate comprises a support and, coated thereon in succession, at least one undercoat layer, a ... | 06/24/1997 |