Abstract: An armature coil for a rotary electric machinery includes a plurality of identical coil blocks each formed by a plurality of turns of and elongated conductor. Each of the coil blocks includes two groups of axial sections which are diametrically opposed to each other, and curved sections joining the two groups to each other at each axial end. The axial sections of one of the groups is disposed in an inner cylindrical layer while the axial sections of the other of the groups are disposed in an outer cylindrical layer which is coaxial with the inner cylindrical layer. The coil blocks are combined with each other by circumferentially shifting one coil block from another in such a maimer that the axial sections are arranged circumferentially along the inner and outer cylindrical layers, one next to another.

Abstract: In an armature coil for electric generators and motors including a plurality of identical coil blocks (11) each formed by a plurality of turns of an elongated conductor so as to correspond to different phases, each of the coil blocks includes two groups of axial sections (2, 6) which are diametrically opposed to each other and curved sections (1, 3, 5, 7) joining the two groups to each other at each axial end, the axial sections of one of the groups being disposed in an inner cylindrical layer while the axial sections of the other of the groups are disposed in an outer cylindrical layer which is coaxial with the inner cylindrical layer; and the coil blocks are combined with each other by circumferentially shifting one coil block from another in such a manner that the axial sections are arranged circumferentially along the inner and outer cylindrical layers one next to another.

Abstract: The invention provides a method for regenerating with high efficiency a deteriorated catalyst of reduced activity, said catalyst originating from a heteropolyacid catalyst containing heteropolyacid formed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt thereof, to a heteropolyacid catalyst which exhibits approximately equivalent activity level to that of the fresh catalyst. Said method comprises mixing a deteriorated catalyst and a nitrogen-containing heterocyclic compound under the conditions whereunder ammonium ions and nitrate anions are present at such ratio that the amount of total ammonium ions per mol of total nitrate anions does not exceed 1.7 mols, drying the mixture and calcining the same.

Abstract: An image forming apparatus includes an image reader for reading information about an image on a document, a sheet support disposed below the image reader and arranged for supporting sheets thereon, and an image forming unit disposed between the image reader and the sheet support. A body of the image forming apparatus has at least one of the image reader, the sheet support and the image forming unit, and provides a sheet discharging space into which a sheet having an image formed thereon by the image forming unit is discharged, where the image reader, the sheet support, and the image forming unit are arranged around the sheet discharging space. The image forming apparatus further includes an opening unit for exposing the image forming unit to the exterior of the image forming apparatus through the sheet discharging space.

Abstract: The present invention provides a process for producing acrolein and acrylic acid by the vapor-phase oxidation of propylene in the presence of Mo—Bi—Fe-based compound oxide catalysts packed in a fixed-bed multitubular reactor wherein acrolein and acrylic acid can be stably produced in high yield for a long period of time. This process is characterized in that each reaction tube having two or more reaction zones disposed along the axis of the tube is packed with catalysts having different ratios of the Bi and/or Fe content to the Mo content in such a way that the ratio decreases from the gas inlet side toward the gas outlet side.

Abstract: An image forming apparatus has a sheet support for accommodating an image-forming sheet; an image forming unit for forming an image on a sheet; a document reading section having a document placing table for reading image information of the document; an ADF in which a document is feedable to the document reading section and displaceable so as to allow placement of the document onto the document placing table; and a sheet discharging section on which a sheet with an image formed thereon by the image forming unit is discharged and stacked by arranging them in the image forming apparatus from the lower part thereof toward the upper part in order. The image forming apparatus further has a transferring section for transferring a sheet with an image formed thereon to the sheet discharging section which is held movably in the vertical direction.

Abstract: A reaction for producing (metho)acrolein and (meth)acrylic acid by vaporn-phase oxidation of at least a compound selected from propyl-ene, isobytylene, t-bytanol and methyl-t-butyl ether. For the process Complex oxide catalysts represented by the formula, MoaWbBicFedAeBfCgDhEiOx (in which A is Ni or Co; B is Na, K, Rb, Cs or Tl; C is an alkaline earth metal; D is P, Te, Sb, Sn, Ce, Pb, Nb, Mn, As, B or Zn; E is Si, Al, Ti or Zr; and where a is 12, 0≦b≦10, 0<c≦10, 0<d≦10, 2≦e≦15, 0<f≦10, 0≦g≦10, 0≦h≦4 and 0≦i≦30) are provided. The catalysts are characterized in that the molar ratio of the total nitrate anions to the molybdenum at the time of catalyst preparation is more than 1 but not more than 1.8.

Abstract: The present invention provides a process for preparing a catalyst and the same for use in production of methacrylic acid, which is characterized by molding a raw material including a powder containing phosphorus and molybdenum at the specific pressure. The invention also provides a process for preparing methacrylic acid by gas phase oxidation and/or oxidative dehydrogenation of at least one compound selected from the group consisting of methacrolein, isobutyraldehyde and isobutyric acid in the presence of the catalyst.

Abstract: The present invention relates to an image forming apparatus comprising an original document reading means for optically reading an image on an original document; and an image forming means arranged below the original document reading means for making a recording on a recording medium corresponding to image information read by the original document reading means. The image forming means is one-sidedly arranged to one side in a longitudinal direction of the original document reading means to create a space is obtained on the opposite side.

Abstract: A space-saving image forming apparatus of high usability includes a reader section for reading an image recorded on an original, an image forming section including a process cartridge for forming an image read by the reader section, a sheet loading cassette for accommodating sheets for forming images provided between the reader section and the image forming section, and a feeding section for feeding the sheets accommodated in the sheet loading cassette to the image forming section.

Abstract: Complex oxide catalysts represented by the formula,

Abstract: A process for vapor phase catalytic oxidation of methacrolein to produce methacrylic acid at high yield and with stability over a prolonged period is provided. The process is characterized, in the occasion of producing methacrylic acid by vapor phase catalytic oxidation of methacrolein using a fixed bed shell-and-tube reactor, in that (1) the catalyst layer in each reaction tube is divided into at least two layers in the axial direction of the tube to provide plural reaction zones, and (2) each of the reaction zones is filled with the catalyst in such a manner that the amount of the catalytically active component per unit volume of the reaction tube decreases from the gas inlet portion toward the gas outlet portion.

Abstract: Complex oxide catalysts represented by the formula, MoaWbBicFedAeBfCgDhEiOx (in which A is Ni or Co; B is Na, K, Rb, Cs or Tl; C is an alkaline earth metal; D is P, Te, Sb, Sn, Ce, Pb, Nb, Mn, As, B or Zn; E is Si, Al, Ti or Zr; and where a is 12, 0≦b≦10, 0<c≦10, 0<d≦10, 2≦e≦15, 0<f≦10, 0≦g≦10, 0≦h≦4 and 0≦i≦30) are provided. The catalysts are characterized in that the molar ratio of the total nitrate anions to the molybdenum at the time of catalyst preparation is more than 1 but not more than 1.8. When used in the reaction for producing (meth)acrolein and (meth)acrylic acid by vapor-phase oxidation of at least a compound selected from propylene, isobutylene, t-butanol and methyl-t-butyl ether, the catalysts exhibit excellent activity and selectivity and maintain stable performance over prolonged period.

Abstract: The present invention provides a process for preparing a catalyst and the same for use in production of methacrylic acid, which is characterized by molding a raw material including a powder containing phosphorus and molybdenum at the specific pressure.

Abstract: The invention provides a method for regenerating with high efficiency a deteriorated catalyst of reduced activity, said catalyst originating from a heteropolyacid catalyst containing heteropolyacid formed of molybdophosphoric acid and/or molybdovanadophosphoric acid, or a salt thereof, to a heteropolyacid catalyst which exhibits approximately equivalent activity level to that of the fresh catalyst. Said method comprises mixing a deteriorated catalyst and a nitrogen-containing heterocyclic compound under the conditions whereunder ammonium ions and nitrate anions are present at such ratio that the amount of total ammonium ions per mol of total nitrate anions does not exceed 1.7 mols, drying the mixture and calcining the same.

Abstract: An image forming apparatus has a sheet support for accommodating an image-forming sheet; an image forming unit for forming an image on a sheet; a document reading section having a document placing table for reading image information of the document; an ADF in which a document is feedable to the document reading section and displaceable so as to allow placement of the document onto the document placing table; and a sheet discharging section on which a sheet with an image formed thereon by the image forming unit is discharged and stacked by arranging them in the image forming apparatus from the lower part thereof toward the upper part in order. The image forming apparatus further has a transferring section for transferring a sheet with an image formed thereon to the sheet discharging section which is held movably in the vertical direction.

Abstract: The present invention relates to an image forming apparatus comprising an original document reading means for optically reading an image on an original document; and an image forming means arranged below the original document reading means for making a recording on a recording medium corresponding to image information read by the original document reading means. The image forming means is one-sidedly arranged to one side in a longitudinal direction of the original document reading means to create a space is obtained on the opposite side.

Abstract: In an article, a binding layer formed through a heating step exists between a permanent magnet and a laminate of steel plates. The binding layer is formed by producing a liquid phase at the heating step from a brazing filler metal made of a rare earth element-based alloy. Diffusion areas exist between a body portion of the permanent magnet and a body portion of the binding layer and between a body portion of the laminate and the body portion of the binding layer, respectively. The thickness t of each of the diffusion areas is in a range of t≧5 &mgr;m. The bond strength in the article is greatly increased by the provision of the diffusion areas.

Abstract: In producing a rotor for a rotating machine by bonding a rotor body and a plurality of permanent magnets to each other through a heating step and a subsequent cooling step, a rotor body having a larger coefficicient of linear thermal expansion at the cooling step has its joint surface formed by assembling of a plurality of small joint faces. Thus, it is possible to moderate a thermal stress in a brazing filler metal layer between the rotor body and each of the permanent magnets to avoid the generation of cracks in the permanent magnets having a smaller coefficient of linear thermal expansion at the cooling step and to firmly bond the rotor body and each of the permanent magnets to each other.

Abstract: In an article, a binding layer formed through a heating step exists between a permanent magnet and a laminate of steel plates. The binding layer is formed by producing a liquid phase at the heating step from a brazing filler metal made of a rare earth element-based alloy. Diffusion areas exist between a body portion of the permanent magnet and a body portion of the binding layer and between a body portion of the laminate and the body portion of the binding layer, respectively. The thickness t of each of the diffusion areas is in a range of t.gtoreq.5 .mu.m. The bond strength in the article is greatly increased by the provision of the diffusion areas.