Abstract: This invention relates to novel 7-(substituted or unsubstituted amino)-3-substituted methyl-.DELTA..sup.3 -cephem-4-carboxylic acids in which a substituted or unsubstituted 1,2,4-triazolyl or 2-(1,2,3,4-tetrazolyl) group attaches to the exomethylene group at the 3-position of the cephem ring through a carbon-nitrogen bond. These cephalosporins are useful intermediates for producing various novel cephalosporins. Also, this invention concerns a process for producing a compound represented by the formula: ##STR1## which comprises reacting a compound represented by the formula: ##STR2## with an optionally substituted triazole or tetrazole in the presence of an acid or a complex of the acid in an organic solvent at 0.degree. to 80.degree. C.

Abstract: A magnetic transducer head utilizing magnetoresistance effect having a circuit for applying a constant voltage to outer ends of at least one pair of magnetoresistance effect elements provided in series on a discontinuous portion other than a magnetic gap of a magnetic core forming a magnetic gap and a conductor arrangement for applying bias magnetic fields opposite in polarity to the magnetoresistance effect elements, respectively wherein an output is derived from a connected point between the pair of magnetoresistance effect elements.

Abstract: A photoreceptor comprising a support bearing thereon a charge transport layer comprising one selected from the group consisting of a--SiC:H, a--SiC:F and a--SiC:H:F, a charge generating layer comprising one selected from the group consisting of a--SiH, a--SiF and a SiH:F, an a--Si type surface modifying layer containing one selected from the group consisting of N, O and C, and an a--Si type interlayer containing at least one selected from the group consisting of N, O and C, the content of said at least one of N, O and C in said interlayer being less than in said surface modifying layer, said interlayer being interposed between said charge generating layer and said surface modifying layer.

Abstract: A two-cycle engine includes a pair of first and second valves movable into and out of respective closed positions where the first and second valves close part of an exhaust port to vary an exhaust timing thereof. Power transmission means includes a pair of first and second shafts angularly movable about their respective axes disposed parallel to an axis of a cylinder and each having a pinion portion. A rack rod is movable along an axis thereof perpendicular to the axis of the cylinder, the rack rod having first and second rack portions meshingly engaging the pinion portions of the first and second shafts, respectively, in such a manner that the angular movement of the first shaft causes the angular movement of the second shaft through the rack rod. A pair of first and second levers of a generally L-shape defined by a pair of perpendicularly-disposed first and second arms has a corner portion where the first and second arms merge.

Abstract: A vibration wave motor, in which a periodic voltage is applied to an electrostrictive element to generate a travelling vibration wave in the surface of a vibration member thereof, and in which a movable member having a friction member is driven on the vibration member by the vibration wave, includes a guide member for controlling the direction of displacement of the movable member, the guide member being disposed to prevent the movable member from being displaced in directions other than a predetermined direction of movement, and a flexible member connecting the movable member and the friction member.

Abstract: A pattern recognition apparatus includes an image input device for inputting an object pattern, an analog-digital converter for converting an analog image signal from the image input device to a binary signal, a frame memory for storing the binary signal, a pattern matching circuit which compares the signal stored in the frame memory with a template memory, a template matching circuit which compares character and image patterns in the template memory, and a featured template forming circuit which automatically forms mismatched portions of the character and image patterns as a featured template and registers the same therein.

Abstract: A disc record is disclosed wherein information is stored in radially spaced-apart track turns, each track turn having microscopic pits occurring at varying rates representing the waveform of signals. The signals comprise a plurality of channels of digital audio data words, a plurality of channels of digital computer-control data bits multiplexed in series with the digital audio data words, the audio data words and the computer-control data bits being organized into a sequence of first blocks, the volume of information contained in the computer-control data bits of each of the first blocks being much smaller than the volume of information contained in the audio data words of each of the first blocks. The recorded signals further include a plurality of first sync codes each identifying each of the first blocks, a sequence of second sync codes identifying each sequence of the first blocks, a plurality of channels of time-division multiplexed digital still-picture video data words.

Abstract: A small electronic apparatus with an optical input device has an apparatus case for housing a main body therein, the apparatus case being provided with a light-transmitting member, at least part of which is exposed to outside light, an electrooptical display device in the apparatus case, a photosensor arranged in the apparatus case at a position between the electrooptical display device and the light-transmitting member, and a logic circuit arranged in LSI for receiving and processing, as an input signal associated with the main body, an output from the photosensor, the output from the logic circuit being used to provide a display signal to the electrooptical display device.

Abstract: In a playback apparatus a first sync code is detected from a series of data blocks to separate binary digits of multi-channel still-picture data from binary digits of multi-channel audio and computer-control data. Second and third sync codes are subsequently detected from the separated binary digits of the audio and computer-control data. A data selector is responsive to a channel selection manual command signal and to the second sync code for selecting the audio data words of a desired channel and the computer-control data bits of a desired channel from the separated binary digits of the multi-channel audio and computer-control data. A video converter is responsive to the command signal for storing the still-picture data words of a desired channel for a predetermined period and converting the stored data words into an analog video signal for application to a visual display. An audio converter converts the selected audio data words into an analog audio signal for application to a loudspeaker.

Abstract: A heavy duty pneumatic radial tire having an improved service durability is disclosed, which comprises a radial carcass and a belt composed of at least three belt layers. In this tire, the belt has a so-called middle removed structure, wherein a pair of first belt layer portions are arranged at both sides of the belt near the carcass across the mid-circumference of the tire, and further a pair of insert cord plies having a particular tensile modulus per unit width are interposed between the first and second belt layers.

Abstract: An agricultural tractor with a driver's cabin, in which the cabin is supported by a safety frame which is in turn supported by an axle case.

Abstract: Polyvalent metal salts of 2-mercaptopyridine-N-oxide which are made into fine powder in which particles having a size below 0.2 micron are contained in amounts not smaller than 50 wt %.Preparing process of the above and antibacterial compositions comprising the above are also disclosed.When the finely powdered polyvalent metal salts of 2-mercaptopyridine-N-oxide are incorporated into shampoo or rinse compositions, dispersion stability of the salts is remarkably improved with the enhanced adsorbability of the particles on the skin and hair, thus antibacterial and dandruff-removing actions owing to the salts are further improved.

Abstract: A variable displacement refrigerant compressor of the variable angle wobble or swash plate type is disclosed. The compressor according to the invention has a displacement control valve which is operable in response to the evaporator pressure so as to restrict the drop thereof by throttling the refrigerant gas flowing through a control port disposed between the evaporator and suction chamber. Crankcase of the compressor is arranged for direct communication with the evaporator so as to keep the crankcase under a pressure which is substantially the same as the evaporator pressure.

Abstract: A peel-apart type instant film unit comprising an image receiving sheet separably adhered in a heat sealing manner to a mask member which is peeled apart from the former after the development thereof. There is provided therebetween a weak sealing layer comprising an adhesive layer of a thermoplastic polymer having hydrophilic groups and a separating layer which is alkali resistant and has a good separation property relative to the adhesive layer. The weak sealing layer can provide an easy separation between the separating and adhesive layers so as perfectly to transfer the adhesive layer to the image receiving sheet to provide a fine appearance and a writeable image frame on the image receiving sheet. The mask member is made of any polyethylene compounded paper sheets and is provided with a processing liquid-resisting layer inside the weak sealing layer for the purpose of preventing the permeation of processing liquid thereto.

Abstract: A process for producing a photoreceptor is disclosed. A gaseous compound of the constituent materials of the photoreceptor is decomposed by glow discharge in the presence of a metal, thereby forming a constituent layer containing atoms and or ions of the metal.

Abstract: A shape measuring apparatus includes a first light source for illuminating a solid object in a proper place through a first slide, a second light source for illuminating the object through a second slide and an observation plane permitting the surface of the object to be observed through a focal point. Each of the first and second slides, contains slit lines. When the first and second light sources are lighted, the slit lines of the first and second slide are projected, in an intersecting pattern, on the surface of the object. A projection grating is formed on the surface of the object and is observed, as a projection grating, in the observation plane.

Abstract: A power control system for electrical apparatus, in which a unidirectional rectifying device is connected to one of a plurality of loads connected mutually in parallel, an ignition circuit comprising a plurality of resistors is connected between the loads and a switching element whose conduction phase is controllable, and at least one of the resistors in the ignition circuit is connected through the unidirectional rectifying device to the said load, whereby the power supply to each of the plurality of loads can be controlled in an individual manner by means of the single switching element.

Abstract: A heat developable light-sensitive material containing a compound represented by the general formula (I):[Ar.sub.n (R).sub.3-n CCO.sub.2 H].sub.l .multidot.B.sub.m (I)wherein ar represents an aryl group or a heterocyclic group; R represents a substituent other than an aryl group and a heterocyclic group; Ar and R may be bonded in a part thereof to form a ring; B represents a mono- or diacidic base which has a pKa of 7 or more and contains 12 or less carbon atoms; n represents an integer from 1 to 3; l and m each represents an integer of 1 or 2 and maintain a relationship in that a number of positive charge and a number of negative charge are equal; when n represents 1 or 2, two R's or Ar's may be the same or different, when n represents 3, three Ar's may be the same or different; and the substituent represented by Ar or R may be further substituted with a substituent.

Abstract: A CPU supplies data write and read commands to only an address control section, and the address control section then designates, for the purpose of writing and reading data, addresses of a waveform memory in which external sound waveform data is stored.

Abstract: A novel heat-developable color photosensitive material containing at least a light-sensitive silver halide, a binder, a dye providing substance capable of forming or releasing a diffusible dye by an oxidation-reduction reaction under heat and a transition metal ion, on a support.The present photosensitive materials provide a color image of high density with low fog in a short period of time, and have a good preservation-stability.