Abstract: The present invention relates to a black toner for developing electrostatic latent images, comprising at least a binder resin and carbon black, characterized in that a mean primary particles size and particle size distribution of the carbon black dispersed in the binder resin are adjusted within a specified range.

Abstract: A toner for developing electrostatic latent images comprising: colored resin particles which include a binder resin and a colorant, and hydrophobic titania micro particles which are obtained by surface treating of anatase-type titania micro particles having average primary particle size of 30 to 90 nm with a hydrophobicity imparting agent and satisfy following relationship:S=1125/D+kwherein S expresses BET specific surface area (m.sup.2 /g) of hydrophobic titania micro particles, D expresses average primary particle size (nm) of anatase-type titania micro particles, and k expresses a constant of 0 to 60.

Abstract: A negatively chargeable color toner for full-color image forming, comprising a specific linear polyester resin and C. I. Solvent Yellow 162 or a specific anthraquinone magenta dye or an anthraquinone magenta dye together with a quinacridone magenta pigment.

Abstract: A cylindrical apparatus for the growth of epitaxial layers having disposed inside a bell jar a susceptor provided thereon with pockets for retaining a substrate is disclosed. It allows the flow rate of a raw material gas inside the apparatus to be uniformized, the fluctuation of film thickness of epitaxial layers within one batch to be repressed below 5%, and the fluctuation of film thickness of an epitaxial layer in the substrate to be decreased by equalizing the gap area between the peripheral surface of the susceptor and the internal wall surface of the bell jar at least in the lateral wall portions of the bell jar confronting the substrates on the susceptor.

Abstract: An aromatic diamine compound represented by formula (1): ##STR1## wherein R.sub.1 and R.sub.2, which may be the same or different, are each a hydrogen atom or a lower alkyl group; and an aromatic diamine compound useful as an intermediate for the synthesis of the above compound (1), represented by formula (2): ##STR2## The compound (1) alleviates the problems of the prior art, and is unlikely to cause crystallization by heat and has a melting point and a glass transition temperature both higher than those of conventional compounds.

Abstract: The present invention provides a hydrophilic polycarbodiimide polymer which has not been provided hitherto, a pulp-like material consisting of said polycarbodiimide polymer, and a process for producing said polycarbodiimide polymer or said pulp-like material.

Abstract: A sound reproducing apparatus converts a sound signal reproduced in a 5 multiple speed reverse reproduction mode into a digital signal by pulses obtained by frequency-multiplying reference sampling pulses by 5 to write the digital signal in a memory 12, and reads out the digital signal by the reference sampling pulses to convert the same to an analog signal. Reading of the signal from memory 12 is performed in response to a read address changed in one direction in a predetermined cycle. Writing of a signal to the memory 12 is performed by using address information changed in the direction opposite to that of the read address signal at a speed five times that of a read address signal as a write address in a cycle corresponding to five-sixth of the cycle of the read address signal and only during a period corresponding to one-sixth of the cycle thereof.

Abstract: An apparatus for attaching fastener elements one at a time to a garment includes a die plate disposed below a punch and having a plurality of dies spaced apart in a first direction. The die plate is slidably movable in the one direction to place the dies successively into alignment with the punch. The die plate is displaceable in a second direction away from the punch in a plane of sliding movement of the die plate. The die plate is pivotally movable in a vertical plane when it is disposed in a position remote from the punch. According to a preferred embodiment, the second direction is perpendicular to the first direction and the die plate is tiltable upwardly as it is displaced in the second direction away from the punch.

Abstract: A fastener conveying apparatus, for a fastener assembling machine, comprises a chute defining a first passageway for guiding therethrough fastener members in succession, a guide pivotally mounted on a fixed guide holder and defining a second passageway for guiding therethrough one fastener member at a time as it is pushed by a pusher. The guide is pivotally movable downwardly away from the chute.

Abstract: A scanning conversion method prepares, in order to convert 2:1 interlace scanning video signals formed by (2N+1)/2 lines (N: positive integer) into progressive scanning system video signals, a memory (23) having addresses corresponding to N+1 lines. The address of the memory (23) for N+1 lines are circulated thereby to progressively write the interlace scanning video signals in the addresses while reading the signals from the addresses subjected to the writing at a speed twice that in the writing repeatedly twice.

Abstract: In a process for producing a dicumyl peroxide comprising reacting a cumene hydroperoxide and an .alpha.,.alpha.-dimethylbenzyl alcohol in the presence of an acid catalyst, when a polar solvent exists in the reaction system, the cumene hydroperoxide of the starting material and the dicumyl peroxide of the resulting product are scarcely decomposed.

Abstract: An aqueous emsulion of organic peroxide which is obtained by incorporating a water soluble alcohol of low molecular weight into a system which comprises an organic peroxide, an emulsifier and water, is good in the storage stability and it is capable of being transported at a low temperature.

Abstract: An aqueous acrylamide polymer solution is stabilized by causing it to contain in combination a 2-mercaptobenzimidazole compound and a phenolic antioxidant compound.

Abstract: A method is provided for spray drying a detergent slurry in a spray drying chamber having at least two different levels of uniformly spaced atomizing nozzles, which slurry consists of about 50 to 70% by weight of solid constituent comprising 20 to 40% by weight of active ingredient containing an anionic surfactant, 5 to 30% by weight of water-soluble silicate and at most 21% by weight of phosphate builder and about 50 to 30% by weight of water. The lower stage of the two adjoining spraying stages is positioned at a point in the spray drying chamber where the moisture content of the particles sprayed from the upper spraying stage becomes less than about 25% by weight. The lowest spraying stage is positioned at a point in the spray drying chamber which is at a temperature of from higher than the boiling point of the detergent slurry to less than 200.degree. C. From 30 to 70% of the slurry is sprayed from said lowest stage.

Abstract: An electronic channel selecting apparatus, comprising; a touch switch responsive to a touch of a finger thereto for selectively providing a plurality of individual channel selecting signals; a tuner including a voltage controlled variable capacitance diode; a plurality of tuning control voltage generators, each responsive to the corresponding one of said individual channel selecting signals for providing a different tuning control voltage to the said variable capacitance diode for selecting the corresponding one of a plurality of broadcasting channels, each of said tuning control voltage generators comprising a gate responsive to a gating signal for passing therethrough the corresponding individual channel selecting signal, a storing circuit responsive to the corresponding individual channel selecting signal, as gated by the said gate, for assuming an active state and responsive to a disabling signal for assuming an inactive state, a potentiometer for providing a predetermined voltage for selecting the corres

Abstract: In a vertical deflection circuit for use in a television receiver or the like comprising a vertical oscillation circuit, a saw-tooth wave voltage generating circuit connected to the vertical oscillation circuit and a vertical deflection output circuit to which the output from the sawtooth wave voltage generating circuit is supplied, a capacitance circuit or a clamp circuit is advantageously incorporated in the vertical deflection circuit in order to eliminate bad effects on the interlaced scanning arising from the linearity correction loop.

Abstract: A vertical deflection circuit for use in a television receiver, comprising a control circuit for stabilizing the width of a pulse either in a vertical oscillator circuit or between a vertical oscillator circuit and vertical output circuit to thereby stabilize the width of a pulse component included in the vertical deflection output signal.