Abstract: An image forming apparatus includes recording electrodes electrically isolated from each other; a recording medium movable relative to the recording electrodes; developer supplier for supplying a conductive developer into between the recording electrodes and the recording medium; developer remover contactable to the recording medium to remove the developer from the recording medium; humidity detector for detecting an ambient humidity; and a bias applying device for applying a different bias voltage to the developer remover in accordance with an output of the humidity detector.

Abstract: The cleaning device for removing the toner image formed by conductive and magnetic toner from the recording medium. The cleaning device includes a rubbing member made of an electrically conductive brush of soft material or a conductive resin blade made of soft material to clean the recording medium. The cleaning device is disposed upstream of the recording position. Damage of the recording material by cleaning is prevented according to the present invention.

Abstract: An image forming apparatus for forming an image by applying a toner on a recording medium by means of an electrostatic force has a belt-like recording medium comprising a laminated layer region. The laminated layer region includes (1) a conductive layer, (2) a surface insulating layer disposed on said conductive layer and having a conductive-layer region in which a portion of the conductive layer is exposed from the surface insulating layer, and (3) a protective layer comprising conductive particles dispersed in resin provided on a surface of the exposed conductive-layer region. Support structure is provided for stretching the belt-like recording medium. A driving source is also included for driving the belt-like recording medium. A conductive contact is provided for rubbing the exposed conductive-layer region, and a wiring member is provided for connecting the conductive contact to a biasing source.

Abstract: A recording electrode assembly which is relatively moved with respect to a recording medium, for depositing onto the recording medium electrically conductive and magnetic toner magnetically conveyed, the assembly includes an array of recording electrodes, electrically isolated from each other, adapted to be supplied with an electric voltage representing information to be recorded, wherein the array is adapted to extend transversely with a direction of the relative movement of the recording material; a supporting member for supporting the array of the recording electrodes; and a conductive member, electrically isolated from the recording electrodes, for providing a surface member at an upstream of the recording electrodes with respect to a direction of movement of the toner magnetically conveyed.

Abstract: A board recording apparatus in which a recording medium (1) in the form of an endless belt moves sequentially between an image formation station (6) and a charge elimination station (14). A charge elimination electrode (16) at the charge elimination station applied voltages via the residual electrically conductive toner (9) to eliminate charges which otherwise cause toner to adhere and produce smudges in subsequent displays.

Abstract: A method of manufacturing a radial flow turbine rotor is disclosed, which comprises the steps of injection molding a rotor body including a conical shaft and a plurality of blades formed on the periphery of the shaft and at an angle to the axis of the shaft from a ceramic material using a mold having parting lines corresponding to blade edges such that projections are formed on the blade edges, sintering the molding thus obtained, and grinding the edge surfaces of the blades facing a casing. The blades are thus provided with projections on their inlet and outlet edges which face a fluid passage.

Abstract: A negative electrolyte for electrolyte circulation-type storage batteries has a composition basically comprising zinc bromide as an active material and this active material is mixed with specified amounts of quaternary ammonium bromides of heterocyclic compounds such as morpholine, pyridine and pyrrolidine or ammonia as a bromine complexing agent and a dendrite inhibitor with or without specified amounts of Sn.sup.2+ and Pb.sup.2+.

Abstract: A cylinder liner for use in an internal combustion engine which is formed of ceramic material having a density higher than 95% of theoretical value and a randomly directed and homogeneous structure. The ceramic liner is composed of silicon nitride, silicon carbide, an oxynitride such as silicon oxynitride and silicon aluminum oxynitride, silicon nitride-silicon carbide or aluminum nitride.

Abstract: A curved blade rotor for a radial inflow turbo supercharger which is made of ceramic material and having a plurality of curved blades each with a curved outer edge. The surface roughness of the curved outer edge is 0.8S to 2S wherein "S" indicates surface roughness according to Japanese Industrial Standard B 0601.

Abstract: A valve for an internal combustion engine formed of ceramic material for resistance to corrosion, heat and wear. The valve may include a valve tip, a lock groove, a valve stem, a valve fillet, a valve face, a valve margin and a valve head. Certain portions of the valve, such as the valve tip, the lock groove and the valve stem may, alternatively, be formed of metal. The ceramic material includes, among other compositions, silicon nitride, silicon carbide, aluminum nitride, silicon oxynitride, silicon aluminum oxynitride and silicon nitride-silicon carbide.

Abstract: A silicon nitride based sintered product produced by sintering a powder mixture consisting essentially of silicon nitride, at least one oxide of yttrium, scandium, cerium, lanthanum and the metals of lanthanide series and at least one metal or metal oxide of iron, nickel and cobalt.

Abstract: A rotor-shaft assembly comprising a ceramic turbine rotor, a metal shaft and a metal connector disposed between the rotor and the shaft. The metal connector is fixed to the rotor by some suitable means and coupled with the metal shaft by mutual engagement of teeth provided at the ends of the connector and the shaft.

Abstract: A pump member for molten metal manufactured from a sintered mass including aluminium nitride as a major component and 0.1 to 10% by weight of at least one oxide selected from the group consisting of oxides of Group IIIA elements of the Periodic Table.