...that "patent leather" got its name because the process of applying the polished black finish to leather was once patented?
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| Number | Title | Issue Date |
| 5712066 | Image forming method, recording medium, and visible image reproducing method Provided an image forming method comprising the steps of; forming electric charges on a recording layer by charging the recording medium comprising a conductive substrate and, provided thereon a photoconductive layer and a recording layer containing a polymeri... | 01/27/1998 |
| 5663032 | Photosensitive composition containing photosensitive and heat developable element and polymer element and image-forming method utilizing the same A photosensitive material comprises a photosensitive composition comprising a photosensitive and heat-developable element and a photopolymerizable element. An imagewise unexposed area on the material is polymerized by imagewise exposure, heating and whole... | 09/02/1997 |
| 5527650 | Image forming method recording medium and visible image reproducing medium Provided an image forming method comprising the steps of; forming electric charges on a recording layer by charging the recording medium comprising a conductive substrate and, provided thereon a photoconductive layer and a recording layer containing a polymeri... | 06/18/1996 |
| 5382497 | Optical recording medium and process for recording thereupon An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical re... | 01/17/1995 |
| 5320930 | Optical recording medium and process for recording thereon An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical re... | 06/14/1994 |
| 5278026 | Optical recording medium and process for recording thereupon An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical re... | 01/11/1994 |
| 5124235 | Photopolymerization initiator and photosensitive composition employing the same A photopolymerization initiator comprises a borate salt represented by the general formula (I): Mn.sym. (B.crclbar. R1 R2 R3 R4)n wherein R1, R2, R3, and R... | 06/23/1992 |
| 5079128 | Optical recording medium and process for recording thereupon An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical re... | 01/07/1992 |
| 5079127 | Optical recording medium and process for recording thereupon An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical re... | 01/07/1992 |
| 5041369 | Photosensitive material and image forming method A photosensitive material comprises a photosensitive and heat-developable element, and further a light-to-heat conversion element or a nonlinear optical function element. The photosensitive and heat-developable element comprises at least a photosensitive ... | 08/20/1991 |
| 5004667 | Photosensitive material, and image formation process and image formation apparatus using same A photosensitive material and comprises a photosensitive and heat-developable element and a polymer, and is capable of being endowed with stickness by a change of pH value or being subjected to exposure and heating. An image formation process comprises th... | 04/02/1991 |
| 5001032 | Photosensitive material containing a photosensitive and heat developable element and a polymerizable layer and image-forming method utilizing the same A photosensitive material comprises a photosensitive layer and a polymerizable layer which are laminated. An area of the polymerizable layer, corresponding to an unexposed area of the photosensitive layer, is polymerized when the photosensitive material i... | 03/19/1991 |
| 4995705 | Device, method and apparatus for optical modulation using ferroelectric polymer liquid crystals An optical modulation method comprises writing in a ferroelectric having a glass transition point at or above the glass transition point, and holding the resultant written state below the glass transition point. Preferably, the ferroelectric is formed in ... | 02/26/1991 |
| 4957854 | Optical recording medium An optical recording medium comprises an organic thin film recording layer on a substrate, which medium performs recording of information by forming a pit with photoenergy, said organic thin film recording layer comprising an organic dye and a polymeric s... | 09/18/1990 |
| 4945833 | Printing process using a pH change to transfer a thin layer of ink to a printing plate A printing process using an ink which is substantially non-adhesive but can be imparted with an adhesiveness when subjected to a pH change. In the printing process, the ink is subjected to a pH change to be provided with an adhesiveness to a desired depth... | 08/07/1990 |
| 4923390 | Optical recording medium IR-ray absorptive compound and optical recording medium by use thereof An optical recording medium comprises at least one of polymethine type dyes represented by the formulae [1-I] through [2-IV] shown below, and a compound selected from an aminium salt compound and a diimonium salt compound in a recording layer.... | 05/08/1990 |
| 4899168 | Optical recording medium An optical recording medium made up of a substrate and an electromagnetic radiation sensitive layer consisting essentially of a sulfur compound as a matrix and a substance (such as, for example, Te, Pb, Au, Sn, As, Bi, In, C) which is subjected to heat ac... | 02/06/1990 |
| 4816840 | Optical recording medium and method for producing the same An optical recording medium, having a substrate and a thin film containing a fluoride compound and a substance capable of undergoing an optical change through absorption of electromagnetic radiation (a film sensitive to electromagnetic radiation).... | 03/28/1989 |
| 4745030 | Electrostatic recording device An electrostatic recording device of transfer system provided with a recording medium having a dielectric layer and an electroconductive substrate is disclosed in which the recording medium has a dielectric layer containing a fluorine-containing block cop... | 05/17/1988 |
| 4738908 | Photothermal transducing type of recording medium A photothermal transducing type of recording medium comprises at least one azulenium salt represented by the general formula [I], [II], [III], or [IV].... | 04/19/1988 |
| 4734359 | Thermal recording material for display and image display device utilizing the same Thermal recording material has a plate- or film-formed polymer blend layer which is in a mutually dissolved transparent state below a certain temperature and in a phase-separated opaque state above said temperature. This thermal recording material is empl... | 03/29/1988 |
| 4693951 | Image forming method and image bearing member An image bearing member for forming a toner image on the surface thereof characterized in that said surface has a maximum surface roughness of 20 μm or less, and an average surface roughness satisfying the relation of rࣘ2d between the average surface r... | 09/15/1987 |
| 4675767 | Opto-magnetic recording medium There is disclosed a magnetooptical recording medium, which is provided with a recording layer composed of a magnetic layer having an easy axis of magnetization perpendicular to the surface of recording layer, and a reflective layer positioned adjacent to... | 06/23/1987 |
| 4673630 | Photoconductive film and electrophotographic photosensitive member contains azulenium salt Photoconductive films contain specified azulenium salt compounds. Electrophotographic photosensitive members are provided with a photoconductive film containing at least one of the specified azulenium salt compounds.... | 06/16/1987 |
| 4629670 | Photoconductive film of azulenium salt and electrophotographic photosensitive member Photoconductive films contain specified azulenium salt compounds. Electrophotographic photosensitive members are provided with a photoconductive film containing at least one of the specified azulenium salt compounds.... | 12/16/1986 |
| 4614951 | Optical recording medium An optical recording medium, comprising a substrate and a thin film which contains an iodine compound, and a substance undergoing an optical change through absorption of electromagnetic radiation.... | 09/30/1986 |
| 4579799 | Photoconductive film electrophotographic photosensitive member therewith A photoconductive film comprises an azulenium salt represented by the general formula (1) ##STR1## wherein R1, R2, R3, R4, R5, R6, and R7 are each independently hydrogen, ha... | 04/01/1986 |
| 4565761 | Electrophotographic process utilizing an azulenium salt-containing photosensitive member An electrophotographic process involving charging and exposing to light a radiation sensitive organic thin film comprising a compound which has at least one nucleus of an azulenium salt.... | 01/21/1986 |
| 4551404 | Disazo electrophotographic photosensitive member An electrophotographic photosensitive member characterized by containing at least one azo pigment represented by the following formula (1), (2), or (3): ##STR1## In these formulae; ##STR2## wherein Z represents ##STR3## in which R... | 11/05/1985 |
| 4548886 | Radiation sensitive organic thin film comprising an azulenium salt A radiation sensitive organic thin film comprising a compound which has at least one nucleus of azulanium salt.... | 10/22/1985 |
| 4481273 | Electrophotographic photosensitive member and preparation thereof An electrophotographic photosensitive member comprising a photosensitive layer formed by coating of a coating solution containing a photoconductive compound on a electroconductive substrate followed by drying, said electroconductive substrate having a C/.... | 11/06/1984 |
| 4471694 | Printing process for transferring fixed image from master A printing process comprise formation of fixed toner images on a photoconductive substrate by using an electrophotographic method, selective application of color materials onto the image portions of the fixed toner images, and printing of said color mater... | 09/18/1984 |
| 4456671 | Electrophotographic photosensitive member having a photosensitive layer containing a hydrazone compound An electrophotographic photosensitive member comprises a layer containing a binder and at least one hydrazone compound represented by the following formula (1), (2), (3), (4), or (5): ##STR1##... | 06/26/1984 |
| 4454211 | Electrophotographic photosensitive member with pyrazoline charge transport material An electrophotographic photosensitive member is characterized by comprising a layer which contains at least one pyrazoline compound represented by the following formula (I) or (II): ##STR1## wherein m and n represent 0 or 1; when both m and n are 0, ... | 06/12/1984 |
| 4446217 | Electrophotographic photosensitive member having a hydrazone containing layer An electrophotographic photosensitive member comprises a layer containing a hydrazone compound represented by the following formula (1) or (2): ##STR1## wherein, Z is an atomic group necessary to complete a substituted or unsubstituted heterocyclic r... | 05/01/1984 |
| 4427753 | Electrophotographic photosensitive member with disazo or trisazo compound An electrophotographic photosensitive member comprises a layer containing at least one azo pigment represented by the following formula (I): ##STR1## in the formula, Cp represents a coupler residue; A1 and A2 each represent a di... | 01/24/1984 |
| 4423129 | Electrophotographic member having layer containing methylidenyl hydrazone compound An electrophotographic photosensitive member is characterized by having a layer which contains at least one hydrazone compound represented by the following formula (1) or (2): ##STR1## wherein R11 represents substituted or unsubstituted na... | 12/27/1983 |
| 4399208 | Electrophotographic photosensitive member An electrophotographic photosensitive member is characterized by having a layer containing at least one hydrazone compound represented by the following formula [I] or [II]: ##STR1## wherein R11 and R12 represent hydrogen, haloge... | 08/16/1983 |
| 4340660 | Toner for development having crosslinked polymers A toner for development comprises a crosslinked vinyl polymer having a gel content of 50-99% and a crosslinked vinyl polymer having a gel content of 10-0%.... | 07/20/1982 |
| 4336318 | Electrostatic image developing method In a method for developing electrostatic images comprising facing an electrostatic image bearing member bearing electrostatic images on the surface to a support member having a toner particle layer on the surface, when the triboelectric charge of the tone... | 06/22/1982 |