Abstract: A subject of the invention is the compounds of formula (I) in which Y represents a hydrogen atom or a fluorine atom, n represents an integer comprised between 1 and 8, Z represents a hydrogen atom or the remainder of a carboxylic acid, optionally substituted on the heterocycle by one or more alkyl, alkenyl, alkynyl, O-alkyl, O-alkenyl, O-alkynyl, S-alkyl, S-alkenyl, S-alkynyl radicals containing up to 8 carbon atoms, one or more OH, NH2, C═N, NO2, CF3 radicals or one or more aryl radicals containing up to 14 carbon atoms or heteroaryl radicals containing one or more nitrogen oxygen or sulphur atoms, the aryl or heteroaryl radicals themselves being able to be substituted as well as their addition salts with acids, The products of formula (I) have antibiotic properties.

Abstract: An image reading apparatus having an original conveyance apparatus for conveying an original to a reading position, includes: a first mounting member for coupling the original conveyance apparatus to the image reading apparatus so that the original conveyance apparatus is displaceable with respect to the image reading apparatus substantially in a direction perpendicular to a conveyance direction of the original; a second mounting member for coupling the original conveyance apparatus to the image reading apparatus so that the second mounting member serves as a rotation axis when the original conveyance apparatus is displaced in the direction perpendicular to the conveyance direction; and a fixing member for fixing the original conveying member to the image reading apparatus after the original conveyance apparatus has been displaced with respect to the image reading apparatus with the second mounting member serving as the rotation axis.

Abstract: An image forming method, comprising steps of: forming a toner image on an organic electrophotographic photoreceptor having a siloxane based resin layer as a protective layer with a developer carried on a developing sleeve, wherein a distance Dsd (&mgr;m) between the organic electrophotographic photoreceptor and the developing sleeve and a thickness t (&mgr;m) of the protective layer of the organic electrophotographic photoreceptor satisfy formula (1): 35t+400<Dsd  (1)

Abstract: The pizza support employs three holes in its platform to allow for stacking of two or more pizza supports, one on top of the other. This provides a reduction in the volume of the pizza supports and a cost savings in both storage and shipping.

Abstract: A toner image forming method by developing an electrostatic latent image on a photoreceptor to form a toner image employing a developer comprising toner, transferring the toner image onto an image forming material, and fixing the transferred toner image employing a fixing unit, is disclosed. The fixing unit is comprised of a heating roller and a pressure roller which is brought into contact with said heating roller, the heating roller is constituted of a cylinder having an interior diameter of from 10 to 70 mm and a wall thickness of from 0.1 to 2 mm comprised of a metal or a metal alloy, and a heating member being incorporated in the interior, a surface of the cylinder being covered with a fluorine resin at a thickness of from 10 to 500 &mgr;m, the pressure roller is constituted of a metal cylinder whose surface is covered with an elastic material having an Asker hardness C of less than 80 degrees at a thickness of 0.

Abstract: To provide an electrophotographic image forming method, an electro-photographic image forming apparatus, and a processing cartridge and an electrophotographic photoreceptor to be used therein, by which an electrophotographic image with a high image quality can be stably obtained in a condition of high temperature and high humidity. In an electrophotographic image forming method including cleaning a toner remained on a photoreceptor by a brush roller and an elastic rubber blade after transferring a toner image formed on the photoreceptor to an image receiving material, wherein the photoreceptor has a resin layer comprising a siloxane resin having an electric charge transportable structural unit and a cross-linked structure, the thickness of the single filament and the density of the filament of the brush roller are each from 3 denier to 30 denier and from 4.5×102 to 15.

Abstract: There is described a method for manufacturing fixing rollers and a roller body holding device utilized for manufacturing fixing rollers. The method includes steps of press-fitting flanges into a roller body, shaped in a hollow cylinder, from each of both end openings of the roller body with putting an elastic material between each of the flanges and the roller body; installing the roller body in a shaping mold so that the roller body is supported by the flanges and the elastic material at a predetermined position in the shaping mold; injecting a melted rubber into a space between the roller body and the shaping mold from an injection opening; and curing the melted rubber injected into the space. The roller body holding device for holding a roller body is shaped in a hollow cylinder and includes a flange, which is press-fitted into the roller body from each of end openings of the roller body; and an elastic material disposed between the flange and the roller body.

Abstract: A processing method of a silver halide light sensitive photographic material by the use of an automatic processor is disclosed, in which a developing solution contains a developing agent represented by the formula described below and a developer replenishing solution having activity lower than that of a developing solution used at the time of starting processing is replenished within a predetermined amount to be replenished per unit time, and when the replenished amount of the developer replenishing solution has exceeded the predetermined amount to be replenished per unit time, a developer replenishing solution having higher activity is replenished.

Abstract: An image forming apparatus includes a plurality of sheet feed units each for feeding a sheet, a single pair of registration rollers provided at the upstream side of the image formation site where an image is formed on the sheet with respect to the direction of sheet conveyance, for conveying the sheet in accordance with the timing of forming the image on the sheet, and a plurality pair of loop forming rollers provided in correspondence with the plurality of sheet feed units respectively at the upstream side of the pair of registration rollers with respect to the direction of sheet conveyance. Each of the plurality pair of loop forming rollers is controlled in a manner such that a loop is formed between each of the plurality pair of loop forming rollers and the pair of registration rollers.

Abstract: The invention relates to new tetracyclic analogues of camptothecin, their preparation processes, their use as medicaments and the pharmaceutical compositions containing them. Said analogues, which include in particular 3-hydroxy-3-(4-oxo-4,6-dihydroindolizino [1,2-b] quinoline-2-yl)pentanoic acid, have a powerful biological activity inhibiting topoisomerase I and/or topoisomerase II.

Abstract: An ink jet recording sheet having a support and an ink absorption layer provided on the support wherein a center line average roughness (Ra) is 0.8 to 4.0 &mgr;m, measured at a standard length of 2.5 and a cut-off value of 0.8 mm of the surface of the ink jet recording sheet on the ink absorption layer side, which is specified in JISB-0601, and a 60-degree specular gloss of the ink jet recording sheet is 10 to 30 percent, which is specified in JIS-Z8741.

Abstract: A switchable support element (1) requiring only a small design space. For this purpose, a slide (12) that serves to couple an inner element (6) to an outer housing (3) in the support element (1) is positioned laterally in a housing (2) arranged in the cylinder head (5). At the same time, a bore (8) in the inner element (6) for the slide (12) is made as a pocket bore, the housing (2) being seated through an annular extension (11) directly in a bore (9) of the outer housing (3).

Abstract: A coating head discharges the coating solution in a discharging direction through a slit to a support and is designed such that a slit has a length M (mm) along the discharging direction and a gap G (mm), and a manifold has a coating width L (mm) orthogonal to the discharging direction, a cross sectional area S (mm2) and a circumferential length R (mm) of a cross section, wherein the coating head and the supplying means are arranged such that the coating solution is supplied symmetrically in terms of the center of the coating width of the manifold through the feeding port into the manifold, and dimensions of the coating head are determined to satisfy formula (1): 10−4<(L2R2G3)/(24MS3)<10−2  (1)

Abstract: The aim of the present invention is a process for preparing a mineral matrix by melting, which is implemented according to the method of direct cold crucible induction melting. The method employs a step for initiating the melting. During the initiation step, a conductive mineral load is generated, by introduction of constituent elements of the matrix, into a bath of a conductive liquid, brought by induction to a suitable temperature, in the cold crucible. The intervening conductive liquid has the property of being a liquid and an electric conductor at a temperature between &thgr;1 of less than 600° C., advantageously of between 100 and 500° C., and a temperature &thgr;2 at least equal to the temperature at which the constituent elements of the matrix melt to generate the matrix. The conductive liquid is advantageously a molten sodium hydroxide bath. The preparation of such a glass matrix is advantageously implemented within the context of a method of vitrifying radioactive waste materials.

Abstract: A compound selected from the group consisting of a compound of the formula wherein R1 and R2 are individually selected from the group consisting of alkyl of 1 to 12 carbon atoms and aralkyl of 7 to 15 carbon atoms or taken together form a saturated heterocycle of 5 to 6 ring members optionally having a second ring heteroatom selected from the group consisting of sulfur, oxygen and nitrogen, R3 is an &agr;-alkyl of 1 to 8 carbon atoms, n is an integer from 2 to 15, R4 is alkyl of 1 to 12 carbon atoms, R5 is selected from the group consisting of hydrogen, alkyl of 1 to 12 carbon atoms and acyl of an organic carboxylic acid of up to 12 carbon atoms and the wavy lines indicate that the 17- and 20-asymmetrical centers are independent of the absolute R and S configurations and their non-toxic, pharmaceutically acceptable acid addition salts useful for controlling fertility in male warm-blooded animals.

Abstract: The invention relates to compounds of the formula (I) in which R represents a radical (CH2)mOn(X)YAr  in which m represents the number 0 or 1, n represents the number 0 or 1, X represents a radical (NH)a, CH2 or SO2, where a represents the number 0 or 1, Y represents a radical (CH2)b—(CH═CH)c—(CH2)d, where c=0 or 1 and b+c+d ≦8, Z represents a hydrogen or halogen atom, Ar represents an optionally substituted aryl or heteroaryl radical and W represents a hydrogen atom or an acyl radical, and their acid addition salts. The compounds of the formula (1) have antibiotic properties.

Abstract: A silver halide emulsion is disclosed, comprising silver halide grains, wherein a variation coefficient of grain diameter of the whole silver halide grains is not more than 25%, wherein at least 50% of the total grain projected area is accounted for by tabular grains having two twin planes and an aspect ratio of not less than 6 and meeting the following requirement, 1.0≦b/a≦1.3. Photographic materials containing the silver halide emulsion is also disclosed.

Abstract: An ink-jet recording sheet is disclosed. The recording sheet comprises ink absorption layers containing a cationic substance on both sides of a support having an opacity of not less than 94% according to JIS P 8138.

Abstract: An ink jet recording medium, comprises a support; a first layer provided on the support; and a second layer provided on the first layer so as to come in contact with the first layer, the second layer being an ink absorbing layer. The Young's modulus of the first layer is smaller than the Young's modulus of the second layer.

Abstract: In a linear guide unit comprising a guide housing configured as a profiled girder having a bottom wall and a side wall, said bottom and side walls defining empty guide space and forming an angle of less than 180° with each other in cross-section, a guide rail fixed on one of the bottom wall and the side wall, said guide rail being partially surrounded by at least one sliding traveler supported thereon, and a carriage plate fixed on the traveler and projecting out of a longitudinal opening of the empty guide space, said carriage plate having a connecting surface for connection to a connecting structure that is to be moved in a longitudinal direction of the guide housing, for a further delimitation of the empty guide space, a cover sheet is detachably fixed on the side wall in an end region of the side wall opposing the bottom wall, the longitudinal opening for the carriage plate being arranged between a free end region of the cover sheet and the bottom wall.