Abstract: In a plasma processing apparatus of this invention, a reaction chamber opposed to a plasma generating chmaber is entirely opened at its one side surface opposing the obect to be processed, and an interval between the one side surface and the other side surface is set to be an integer multiple of a 1/2 wavelength of the microwave. A microwave oscillated by a microwave oscillator and supplied to a vacuum vessel can be converted into a plasma energy with high conversion efficiency, thereby minimizing a reflected wave.

Abstract: A thiophene derivative polymer comprising repeating units of the formula: ##STR1## (wherein R stands for one member selected from the group consisting of ##STR2## and a polymer composition having the polymer doped with an anion and consequently possessing a semiconducting characteristic.

Abstract: A thiophene derivative polymer comprising repeating units of the formula: ##STR1## (wherein R stands for one member selected from the group consisting of ##STR2## and a polymer composition having the polymer doped with an anion and consequently possessing a semiconducting characteristic.

Abstract: A programmable copying apparatus is provided which permits an operator to be informed of the exact time that the copying operation input by him into the machine will be completed, even with multiple copying operations.

Abstract: In a predictive coding device which is for coding an input signal into a coded signal, such as a PCM signal, and for use in combination with a transmission line having an on and an off state wherein the coding device is selectively connected to the transmission line and disconnected therefrom, a code converter (16) operatively coupling the transmission line to produce a mute signal of a predetermined code as a first local output signal and the coded signal as a second local output signal when the transmission line is in the off and the on states, respectively. A local decoder (15) locally decodes either the first or the second local output signal into a local decoded signal for use in coding the input signal into the coded signal. Preferably, the predetermined code is a code which the coded signal has when the input signal carries no information. Usually, the coding device is selectively connected to the transmission line and disconnected therefrom through a digital speech interpolation (DSI) device.

Abstract: A PCM difference data is obtained from an original data, and an absolute data having a lower bit number than the original data is obtained at every data block, each data block comprising a plurality of the difference data. The transmission data includes the difference data and absolute data which is transmitted. The received data is separated into the difference data and the absolute data and the received difference data is integrated to provide the demodulated data. The integrated data is refreshed by the received absolute data only when the difference between the integrated data and absolute data is more than a predetermined value.

Abstract: A 3-n-alkylthiophene polymer of the general formula: ##STR1## (wherein n stands for an integer in the range of 5 to 11 and m for an integer in the range of 80 to 350) and a composition containing this polymer.

Abstract: A polymer composition having poly-[2,5-(3-ethylthienylene)] doped with an anion is obtained by electrochemically polymerizing 3-ethylthiophene in an anion-containing salt as an electrolyte. Poly-[2,5-(3-ethylthienylene)] is obtained by electrochemically reducing the polymer composition thereby removing the anion therefrom. The aforementioned polymer composition and poly-[2,5-(3-ethylthienylene)] are novel substances.

Abstract: The invention relates to a method of forming monochromatic or dichromatic copy images with use of a developer composed of a high-resistivity magnetic carrier and a nonmagnetic insulating toner which are triboelectrically chargeable. An electrostatic latent image having at least three different levels of potentials is formed and the toner and carrier are adhered respectively onto first and second image portions.

Abstract: The invention disclosed concerns a method of forming dichromatic copy images. An electrostatic latent image having a first image portion and a second image portion is formed. The first image portion is developed by a first magnetic brush developing device using at least a magnetic toner of first color triboelectrically chargeable to a specific polarity. The second image portion is developed by a second magnetic brush developing device using a mixture of a magnetic carrier substantially not triboelectrically chargeable with the magnetic toner and a non-magnetic toner of a second color triboelectrically chargeable to a polarity opposite to that of the magnetic toner by contact with the magnetic carrier.

Abstract: An image forming method which includes following steps:a. forming on a photosensitive member an electrostatic latent image having at least three different levels of potentials, i.e., having a first latent image and a second latent image;b. developing the first and second latent images with a magnetic developer in the form of a mixture of at least three components, i.e., a magnetic carrier, a first toner triboelectrically chargeable to a specific polarity by contact with the magnetic carrier, and a second toner triboelectrically chargeable by contact with the first toner to a polarity opposite to the triboelectric charge polarity of the first toner but substantially not triboelectrically chargeable by contact with the magnetic carrier, by selectively depositing the first and second toners on the latent images; andc. transferring the resulting toner image onto the surface of a copy material.

Abstract: Disclosed is an amplifier wherein, in order to prevent the mixing of hum and other noise from the ground potential of the amplifier, the driving power supply circuit of the amplifier is separated from the ground potential into a floating state. In addition, the overall capacity of the power supply is reduced.

Abstract: An orthodontic system including an ultraelastic archwire having a transformation temperature of normal body temperature of about 37.degree. C. is provided. Only a small load is applied to the teeth when the orthodontic system is disposed in a patient's mouth. An increased load is applied to the teeth only when the temperature in the mouth is increased by placing a material having a higher than body temperature in the mouth. As a result, the temperature in the patient's mouth can be controlled without inflicting pain during natural every day actions. The orthodontic effect is available intermittently by raising the mouth temperature for producing higher stress or load which serves to move the teeth orthodontically. The ultaelastic alloy is preferably Ni-Ti alloy containing at least about 50.5 atomic percent of nickel and preferably about 50.7 atomic percent.

Abstract: A dry process developing method for application to electrophotography which includes the steps of mixing magnetizable toner and electrically insulating non-magnetizable toner at a predetermined ratio to form developing material, and applying said developing material onto a electrical potential pattern or electrostatic latent image formed on a recording medium for developing the latent image into visible toner image. For effecting the foregoing developing method, a developing apparatus is provided with an improved developing material supplying device for efficient developing.

Abstract: A spectacle frame wherein each lens is held against a rim by a thin wire for providing a rimless appearance is provided. The spectacle structure includes a wire having at least one enlarged end and a rim for receiving the lens with the enlarged end of the wire engaged in one end of the rim and secured at the opposing rim for compressively retaining the lens in the rim. The wire is formed of a super-elastic material, such as a Ni-Ti alloy.

Abstract: The disclosure is directed to a heat roller fixing device for use in an electrophotographic copying apparatus and the like, which includes a heating roller constituted by laminating an offset prevention layer on an electrically conductive core member and having a heating element incorporated in it so as to be driven for rotation by a driving unit, and a pressure roller constituted by forming an electrically insulative layer on another electrically conductive core member and held in contact under pressure with the heating roller for simultaneous rotation with the heating roller, so as to fix toner image formed on copy paper onto the copy paper by causing the copy paper carrying the toner image on it, to pass between the heating roller and pressure roller. The offset prevention layer is composed of fluorine resin containing carbon fibers in a combined amount of less than 30%.

Abstract: A bias circuit for use in the single-ended push-pull circuit has NPN and PNP transistors whose emitters are connected to each other and whose collectors provide a bias voltage, diodes and resistance elements. On the operating side, the diode gives a reference voltage and the resistance element detects the voltage corresponding to the increase of the output voltage exceeding the reference voltage. Simultaneously, on the unoperating side, the diode decreases the voltage between its both terminals. Thus the bias voltage is made larger, by positive feedback operation on the operating side and by negative feedback operation on the unoperating side, enough to prevent output power transistor on the unoperating side from being cut off.

Abstract: An electrographic copying machine of the powder image transfer type in which a channel for transporting the developer recovered by a cleaner to a developing unit includes an assembly for removing foreign matter from the developer. The developing unit is adapted to develop latent electrostatic images with a magnetic developer which is a mixture of finely divided insulating toner and a magnetic carrier having small size particles and a resistivity of at least 10.sup.13 ohm-cm. The assembly has a nonmagnetic hollow cylindrical member for guiding the developer, a magnetic transport member disposed within the cylindrical member for transporting the developer, a foreign matter removal opening formed in the lower wall of the cylindrical member, and magnets for forming a magnetic field for attracting the magnetic carrier contained in the portion of the developer positioned in the vicinity of the opening upwardly in the cylindrical member.

Abstract: An amplifying device comprising a pre-amplifier, a first high power amplifier of a relatively bad lineality for amplifying the outputs of the pre-amplifier, a first impedance element for applying the outputs of the first amplifier to a load, a negative feedback circuit for feeding back the outputs of the first amplifier to the input of the pre-amplifier and a second low power amplifier of the relatively good linearity for amplifying the inputs of the first amplifier and supplying the outputs through a second impedance element to the load. The amplifying device can cancel the distortion in the high frequency band caused in the first amplifier through the first and second impedance elements by the outputs of the first amplifier.

Abstract: A dry developing powder composition particularly suited for use in electrophotographic reproduction which comprises a magnetic toner of 35 to 50 microns in average particle size mixed with a non-magnetic toner of 5 to 30 microns in average particle size. The amount of the magnetic toner used is within the range of 85 to 98% by weight relative to the total weight of the composition and the amount of the non-magnetic toner used is within the range of 2 to 15% by weight relative to the total weight of the composition.