Did You Know...
...that several people are credited with the invention of the flush toilet? Most people have heard of Thomas Crapper (1837-1910), the sanitary engineer who invented the valve-and-siphon arrangement that made the modern toilet possible. Another claimant to "the throne" was British inventor Alexander Cumming who patented a toilet in 1775. Then there's a nameless Minoan (a native of ancient Crete) who lived 4,000 years ago who supposedly was ahead of his time and created the first flush toilet!
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| Number | Title | Issue Date |
| 7435461 | Cellulose acylate film A cellulose acylate film is provided that includes a cellulose acylate that satisfies the degrees of substitution below, and a hydrolysis-condensation product of a hydrolyzable and polycondensable reactive metal compound. 2.5≦A+B≦3.0 0... | 10/14/2008 |
| 7262001 | Heat-developable photosensitive material and an image forming method A heat-developable photosensitive material comprising a support, providing thereon, an organic silver salt, silver halide, a binder and a reducing agent, wherein a value of Rz(E)/Rz(B) is from 0.1 to 0.7 in which Rz(E) is the ten-point average roughness of the outer... | 08/28/2007 |
| 7192695 | Image forming method using photothermographic material An image forming method comprising by imagewise exposing a photothermographic material comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, on at least one surface of a support, and thermally d... | 03/20/2007 |
| 7132200 | Hologram recording sheet, holographic optical element using said sheet, and its production process The hologram recording sheet according to the invention is made up of a base film and hologram sensitive materials sensitive to different wavelength regions formed therein in a desired pattern, or a film and at least two hologram recording sensitive materials sensit... | 11/07/2006 |
| 7087368 | Silver salt photothermographic dry imaging material, image recording method and image forming method for the same A silver salt photothermographic dry imaging material including non-photosensitive aliphatic carboxylic acid silver salts; a photosensitive emulsion containing photosensitive silver halide grains; a silver ion reducing agent; a binder; and a cyan coloring leuco dye.... | 08/08/2006 |
| 7060425 | Color photographic material A color photographic material is described containing a compound of formula (I) wherein, if n=1, R1 is, inter alia, a radical of formula (II), and, if n=2, R1 is unsubstituted or C1–C4alkyl- or hydroxy-substituted phenyl... | 06/13/2006 |
| 7022441 | Silver-free black-and-white thermographic materials containing a benzoquinone and methods of imaging Silver-free, aqueous-based direct thermographic materials are designed to have image tone with near neutral density. Without the use of organic silver salts containing reducible silver ions, the image is formed using a color developing agent precursor that releases ... | 04/04/2006 |
| 6645711 | Silver halide photographic light-sensitive material A silver halide color photographic light-sensitive material containing a compound of the formula: ##STR1## wherein R1, R2 and R3 each represent a hydrogen atom or a substituent; R4 represents an alkyl, aryl or h... | 11/11/2003 |
| 6551768 | Imaging element containing a blocked photographically useful compound Blocked photographically useful groups decompose thermally via a Lossen rearrangement reaction, including, for example, compounds represented by the following structure: ##STR1## In the above structure, the substituents are as defined in the application. ... | 04/22/2003 |
| 6479229 | Silver halide color photographic material and development processing method of the same A multilayer silver halide color photographic material, wherein when the multilayer silver halide color photographic material is development processed with a color developing solution containing a p-phenylenediamine derivative as a color developing agent,... | 11/12/2002 |
| 6426179 | Imaging element containing a blocked photographically useful compound This invention relates to an imaging element, such as a photographic or photothermographic element comprising a silver halide emulsion layer, wherein the element also comprises a compound of Structure I: ##STR1## wherein the substituents are as defined in... | 07/30/2002 |
| 6350566 | Packaged color photographic film comprising a blocked phenylenediamine developing agent and a method for processing the film This invention relates to packaged photographic film that is capable of being alternately processed, according to individual consumer choice, by either (1) a traditional wet-chemistry process with a phenylenediamine-containing developer solution followed ... | 02/26/2002 |
| 6274247 | Low-heat-shrinkage polyester support and heat-development photographic light-sensitive material There is disclosed a polyester support, which has the dimensional change with the lapse of time after heating which corresponds to heat development, in a range of from -0.03% to +0.05% both in the longitudinal direction and the transverse direction. There... | 08/14/2001 |
| 6124042 | Low-heat-shrinkage polyester film and heat-development photographic light-sensitive material using the same A polyester film which has the in-plane rate of dimensional change of more than 0.02%, but not more than 0.05%, when the film is kept for 72 hours under the conditions of temperature 60° C. and relative humidity 80%, and the average value of the in-plane... | 09/26/2000 |
| 5902721 | Reduced development time color negative process and process compatible color negative elements When a color negative film is developed in 2 minutes or less at a temperature of less than 40° C. and contains in overlying blue and green recording layer units high bromide silver halide grains containing from 1 to 10 mole percent iodide, based on silve... | 05/11/1999 |
| 5874206 | Silver halide photographic light sensitive material A silver halide photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer, wherein the silver halide emulsion layer contains tabular silver halide grains having an average iodide content of 1.0%... | 02/23/1999 |
| 5871893 | Silver halide photographic light-sensitive material A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a transparent support having thereon a hydrophilic colloid layer comprising a silver halide emulsion layer and an electric conductive layer, in whic... | 02/16/1999 |
| 5599647 | New toning agents for thermographic and photothermographic materials and process Toning agents are provided for use in thermographic and photothermographic materials, either on their own or in combination with at least one other toning agent, with improved compatibility with hydrophobic media as shown by reduced crystallization and re... | 02/04/1997 |
| 5589324 | Antistatic layer for photographic elements comprising polymerized polyfunctional aziridine monomers The photographic element having an antistatic layer composed of a polymer entity of (a) a water-soluble, electrically conductive polyelectrolyte, e.g., poly(sodium styrenesulfonate) homopolymer, and (b) a polymer derived from a polymerization of a monomer... | 12/31/1996 |
| 5508421 | Pyrrolotriazole azomethine dye, and heat transfer dye providing material containing a pyrrolotriazole azomethine dye A pyrrolotriazole azomethine dye represented by formula (I), (II) or (IV) is disclosed: ##STR1## Also, a heat transfer dye providing material is disclosed, in which the material includes a support having thereon a dye providing layer containing ... | 04/16/1996 |
| 5496696 | Silver halide imaging materials A photosensitive element having a photosensitive medium comprising silver halide in reactive association with an organoborate salt and wherein said medium is selected from: (a) silver halide photographic emulsions comprising a cationic dye, and (b) photothermo... | 03/05/1996 |
| 5462850 | Silver halide photographic material There is provided a silver halide photographic material which comprises silver chloride or silver chlorobromide substantially free from silver iodide. The silver halide photographic material is excellent in rapid processability, low in fogging, and high i... | 10/31/1995 |
| 5424183 | Ballasted leuco dyes and photothermographic element containing same Heat-developable photothermographic materials capable of providing stable color images of high resolution. These materials comprise a support bearing a layer of an image-forming composition comprising: (a) a photosensitive silver halide, (b) an organic silver ... | 06/13/1995 |
| 5362882 | Pyrrolotriazole derivative and heat transfer dye providing material containing a pyrrolotriazole azomethine dye A novel pyrrolotriazole derivative is disclosed, represented by any one of formulae (I), (II), (III), (IV), or (V): ##STR1## A heat transfer dye providing material is also disclosed, comprising a support having thereon a dye providing layer containin... | 11/08/1994 |
| 5264583 | Photographic coupler and method of making the same A method of forming a washout photographic coupler comprising a coupler moiety (COUP) containing a substituted or unsubstituted ballasted releasing group (A) selected from aryloxy, thioaryloxy, heterocyclicoxy, and thioheterocyclicoxy releasing groups hav... | 11/23/1993 |
| 5264582 | Method of forming a photographic coupler capable of forming a wash-out dye A method of preparing a washout photographic coupler comprising a coupler moiety (COUP) containing a substituted or unsubstituted ballasted releasing group (A) selected from aryloxy, thioaryloxy, heterocyclicoxy, and thioheterocyclicoxy releasing groups h... | 11/23/1993 |
| 5260180 | Photothermographic imaging media employing silver salts of tetrahydrocarbyl borate anions Thermally imageable compositions, comprising a silver salt of an organic acid, a reducing agent, and, optionally, an activator, coated together in a suitable polymeric binder, can be rendered photoimageable by the addition of a salt of a tetrahydrocarbylb... | 11/09/1993 |
| 5258279 | Reversible redox-controlled imaging methods A novel class of N-substituted triarylmethane sulfonamides is provided which undergo reversible oxidation into colored form and reversible reduction of the oxidized form into colorless form. Preferred embodiments comprise xanthene sulfonamides having N-ar... | 11/02/1993 |
| 5204213 | Silver halide photographic material A silver halide photographic material comprising at least one silver halide emulsion layer on a support, characterized in that there is contained a compound represented by the general formula ##STR1## wherein R1 and R2 each repr... | 04/20/1993 |
| 5198327 | Method of formation of photographic images For formation of a photographic image by development of a silver halide photographic material with an automatic developing machine, a certain period of time or not longer than 15 seconds is set as the time of the development step and a silver halide photo... | 03/30/1993 |
| 5185231 | Dry silver systems with fluoran leuco dyes Certain fluoran dyes have been found to be effective reducing agents for silver ion in dry silver constructions. The fluoran dyes have the following structure: ##STR1## wherein: R1 represents methyl or n-butyl; R2 represents n-b... | 02/09/1993 |
| 5066573 | Silver halide color photographic material A silver halide color photographic material is described, comprising a support having thereon at least one of a silver halide emulsion layer and other hydrophilic colloid layer, wherein the silver halide emulsion layer or a hydrophilic colloid layer conta... | 11/19/1991 |
| 5059499 | Master hologram and micropattern replication method A hologram is directly recorded in a sensitized metal substrate. The hologram may be an amplitude hologram, or may be treated to produce a phase relief hologram which may be stamped into a plastic material for reproduction, be archivally stored, or used a... | 10/22/1991 |
| 5055380 | Method of forming a color-differentiated image utilizing a metastable aggregated group Ib metal colloid material An aggregated-Group Ib metal colloid is prepared, which may be used to form stable color-differentiated images, by the selective application of thermal energy thereto. The metal aggregates, when exposed to thermal energy, revert either to the unaggregated... | 10/08/1991 |
| 5021329 | Silver halide photographic material containing a dye precursor residue In accordance with the present invention a silver halide photographic material having at least one silver halide emulsion layer on a base, which comprises at least one of compound having a dye precursor residue is disclosed. The silver halide photographic... | 06/04/1991 |
| 4923792 | Color photothermographic elements A photothermographic element comprising: (A) a coating comprising a support bearing a photothermographic medium, the medium comprising a light sensitive silver halide in reactive association with a silver salt of an organic acid and a color generating reducing... | 05/08/1990 |
| 4916047 | Silver halide light-sensitive material A silver halide light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, and containing a compound containing a repeating unit, said compound containing a repeating unit being connected at the repeating unit ... | 04/10/1990 |
| 4891304 | Silver halide photographic materials A silver halide photographic material comprising a support having provided thereon at least one silver halide emulsion layer containing a compound represented by formula (I): ##STR1## wherein EAG represents an aromatic group bonding to NA ... | 01/02/1990 |
| 4886736 | Silver halide color photographic material A silver halide color photographic material comprising (1) at least one coupler and (2) at least one compound represented by formula (I) ##STR1## wherein EAG represents a group capable of accepting an electron from a reducing substance; R1... | 12/12/1989 |
| 4883747 | Color photothermographic elements A photothermographic element comprising a support bearing a photothermographic medium, the medium comprising a light sensitive silver halide in reactive association with a silver salt of an organic acid and a color generating reducing agent which is a leu... | 11/28/1989 |
