Abstract: A semiconductor integrated circuit capable of preventing propagation of noise from an output circuit to an input circuit and limiting inflow of a current caused by a protective circuit for protecting the input circuit has been disclosed. In a semiconductor integrated circuit including an input circuit 11, other circuits 12 and 13 that operate according to an output of the input circuit 11, and a plurality of power supply pins 16, 17, 18, and 19 through which a supply voltage is supplied to the input circuit 11 and other circuits 12 and 13 and to which the same supply voltage is applied, input circuit power lines 20 and 22 over which power is supplied to at least part of the input circuit 11 and general power lines 21 and 23 over which power is supplied to other circuits 12 and 13 are separated from each other. The input circuit power lines 20 and 22 and general power lines 21 and 23 are coupled to different power supply pins 16, 17, 18, and 19.

Abstract: This invention provides a collagen contraction inhibitor, which contains a peptide comprising at least the amino acid sequence of Sequence ID No. 1, its pharmacologically acceptable derivatives, its pharmacologically acceptable salts or a mixture thereof. This peptide specifically inhibits the binding between collagen and fibronectin by the antagonistic action, providing superb effect in the treatment of cheloid and vulnera.

Abstract: A piezoelectric vibrator includes a piezoelectric element having an electromechanical coupling coefficient of a thickness-extensional vibration mode greater than that of a thickness-share vibration mode, and a pair of electrodes arranged on surfaces of the piezoelectric element so that harmonic energy of the thickness-extensional vibration of the piezoelectric element is trapped.

Abstract: The substrate for devices 10 comprises an insulating substrate 12 of an insulating material, conducting layers 14 formed on the insulating substrate 12 and opposed to each other at a certain distance, and a dielectric film 16 formed on that portion of the insulating substrate 12 between the conducting layers 14. The substrate 10 incorporates a capacitance constituted by the opposed electric layers 14 and the dielectric film 16. A piezoelectric oscillator 20 is connected to the left and right conducting layers 14b, 14c of the substrate for devices 10. A cap 22 is connected to a boundary part of the substrate 10 through epoxy resin 24. The substrate for devices 10 with a built-in capacitance can reduce fabrication costs of a piezoelectric oscillation device and a surface acoustic wave device.

Abstract: A vibratory gyro including a tuning-fork vibrator having a piezoelectric member and a supporting member supporting the tuning-fork vibrator. The tuning-fork vibrator has a driving-side vibration mode and a detection-side vibration mode. The tuning-fork vibrator resonates in the driving-side vibration mode, and the tuning-fork vibrator and the supporting member resonate as a whole in the detection-side vibration mode.

Abstract: A motor control device capable of providing an appropriate and most suitable motor current waveform, in order that efficiency and power factor for the motor is significantly improved and the high frequency and noise thereof are reduced. In an inverter type motor control circuit including a pulse width modulation waveform synthesis circuit by which a plurality of switching elements are controlled so as to obtain an A.C. power having a predetermined frequency, the pulse width modulation waveform synthesis circuit includes: memory circuit for storing a reference pulse waveform data series in order to control the switching elements; phase control circuit for controlling a starting stage of the reference pulse waveform data series which is read from the memory means; and modifying circuit for modifying and correcting a reference level of the motor control circuit so that a duty ratio of the reference pulse waveform data series is uniformly varied.

Abstract: A two-way valve has a poppet valve displaceably disposed in a bonnet for selectively opening and closing a communication passage between primary and secondary ports, and a resilient member disposed in a diaphragm chamber defined between the bonnet and the poppet valve and resiliently deformable for dampening a load applied to a diaphragm of the poppet valve which is exposed to the communication passage.

Abstract: A vibratory gyro includes a tuning-fork vibrator having a piezoelectric member, and a supporting member supporting the tuning-fork vibrator. The tuning-fork vibrator has a driving-side vibration and a detection-side vibration. The turning-fork vibrator resonates in the driving-side vibration, and the turning-fork vibrator and the supporting member resonate as a whole in the detection-side vibration.

Abstract: A method of producing a device including an impedance element provided so as to effect a series resonance, includes a step of connecting connection portions such as terminals or electrodes to be electrically connected in the device, using conductive adhesive resin. This step of connecting connection portions includes a sub-step of applying an alternating current signal which has a frequency lying in close vicinity of a resonant frequency of the device, and which has an enough amplitude to destroy an insulation film parasitically formed in the conductive adhesive resin, to input/output terminals of the device. By executing the sub-step, it is possible to substantially remove a fluctuation in impedance characteristics in dependence on the driving level, and thus to realize a stable operation of the device.

Abstract: A composite polyester film in the present invention comprises a main layer and a sublayer. The polyester comprising the sublayer has a specific resistance of the polymer in a melt state of less than 5.times.10.OMEGA..multidot.cm. The specific resistance of the polymer in a melt state is lower than that of the polyester constituting the main layer. In addition, the thickness of the sublayer is 1/200 to 4/10 of the overall thickness of the composite film.The composite polyester film has excellent electrostatic impression casting property and thermal stability.

Abstract: A polyester which is prepared by using a germanium compound as the polymerization catalyst, in which the Young's modulus E.sub.MD in the machine direction and the Young's modulus E.sub.TD in the transverse direction satisfy the requirements of E.sub.MD .gtoreq.350 kg/mm.sup.2, E.sub.TD .gtoreq.350 km/mm.sup.2 and E.sub.MD .times.E.sub.TD .gtoreq.250,000 kg.sup.2 /mm.sup.4, the refractive index n.sub.ZD in the thickness direction satisfies the requirement of 1.480.gtoreq.n.sub.ZD .gtoreq.1.492, and the maximum roughness Rt of at least one surface satisfies the requirement of Rt.gtoreq.100 nm, is valuable as a base film for a magnetic recording medium. A laminate structure of a polyester layer A and a polyester layer B is also used as a base film for a magnetic recording medium, in which the above requirements of E.sub.MD, E.sub.tD and n.sub.ZD are satisified, fine particles are incorporated in the layer B, the outer surface of the layer A satisfies the requirement of Rt .gtoreq.

Abstract: A thermoplastic resin base film for a magnetic recording medium including a thermoplastic resin film and a discontinuous film adhering closely to at least one surface of the thermoplastic resin film. The discontinuous film has a thickness of not larger than 500 angstroms and is composed of a polymer blend containing fine particles. The polymer blend comprises a water-soluble polyester copolymer and a water-soluble polymer having at least one hydroxyl group in the recurring unit thereof. Fine protrusions are formed on the discontinuous film due to the presence of the fine particles therein. A magnetic recording medium using the base film is suitable for high density magnetic recording and has extremely excellent durability to repeated use.

Abstract: A laminated film for a super-high density magnetic recording medium, which comprises (A) a layer composed of a thermoplastic resin and (B) a layer of a thermoplastic resin containing fine particles therein. In this laminated film, the outer surface of the layer (A) has a surface roughness of less than 0.005.mu. as expressed as the Ra value, and the outer surface of the layer (B) has a surface roughness of 0.005 to 0.040.mu. as expressed as the Ra value. The outer surface of the layer (B) has either (i) a plurality of depressions and a plurality of protrusions, which are formed thereon in a configuration such that at least one protrusion exists within each depression or at least one protrusion exists in the area where two or more depressions are contiguous to each other, or (ii) protrusions on a flat plane and a covering layer (C) composed of a lubricant, which is formed on the surface of the layer (B). This covering layer (C) may be formed on the surface having the above-mentioned depressions and protrusions.

Abstract: A laminated film comprising (A) a layer composed of a thermoplastic resin and (B) a layer composed of a thermoplastic resin containing fine particles therein, wherein a discontinuous skin having a height of 50 to 1,000 .ANG. is formed on the outer surface of the layer (A) and the outer surface of the layer (B) has a surface Ra value of 0.005 to 0.040.mu.. The laminated film is very valuable as a base film of a magnetic recording tape having a ferromagnetic metal thin film formed on the surface of the layer (A), especially a video tape, because it has good running properties and is excellent in electromagnetic transformation performance.

Abstract: Disclosed is a polyester film for a magnetic recording medium, which is comprised of a polyester film, a discontinuous film layer or layers adhering closely to one surface or both the surfaces of the polyester film, and fine particles present in the discontinuous film layer or layers and on the or each surface of the discontinuous film layer or layers, or on the exposed surface or surfaces of the polyester film in the portions where the discontinuous film layer or layers are not present. The discontinuous film layer or layers have a thickness of not larger than 500 angstroms and are composed mainly of a water-soluble polymer.

Abstract: A super high density magnetic recording medium is provided, which comprises a polyester film and a discontinuous film formed on at least one surface of the polyester film. The discontinuous film has a thickness of smaller than 500 angstroms and is composed mainly of a water-soluble polymer, a silane coupling agent, and if desired, a silicone resin. A high density magnetic recording medium is also provided, which comprises a ferromagnetic metal thin film formed on the discontinuous film layer of the polyester base film. The polyester base film is especially suitable for formation of a metallized video tape, and this tape is excellent in the slip characteristics and abrasion resistance and advantageous in that noises and drop-out are reduced.

Abstract: A surface acoustic wave filter which comprises a substrate of piezoelectric material and a multistrip coupler. The multistrip coupler comprises a plurality of parallel conductive strips formed on the substrate; at least one input transducer is disposed on one side of the multistrip coupler, and at least one output transducer is disposed on the other side of the multistrip coupler. The surface acoustic wave filter is characterized in that a part of the middle portion of each of the conductive strips of the multistrip coupler is made of a photoconductive material.

Abstract: An acoustic surface wave device comprises a piezoelectric substrate (1), an input transducer (2), an output transducer (3) and acoustical absorbent layer patterns (5, 6) for absorbing undesired acoustic surface waves and bulk waves (S.sub.4, S.sub.5). Each of the acoustical absorbent layer patterns (5, 6) has zigzag-shaped or triangular shaped edges, i.e., a recess portion (R.sub.1, R.sub.3) and a protruding portion (R.sub.2, R.sub.4). The recess portion has a further recess portion (R.sub.1 ', R.sub.3 ') which is formed diagonally with respect to the propagation path of acoustic surface waves.

Abstract: A surface acoustic wave filter which comprises: a substrate of piezoelectric material; a multistrip coupler for changing the track of a signal comprising a plurality of parallel conductive strips; at least two transducers disposed on one side of the multistrip coupler; at least another two transducers disposed on the other side of the multistrip coupler. The latter two transducers facing the former two transducers. One pair of the transducers which face each other through the multistrip coupler constitutes input transducers while the other pair of the transducers constitutes output transducers.

Abstract: An acoustic surface wave device comprising: a piezoelectric substrate; a pair of input and output transducers located diagonally from each other; and a multistrip coupler between the two transducers. In this device, the spacing of electrodes of at least one of the transducers is 3.lambda./4 (.lambda.: wavelength of the acoustic surface waves) and, accordingly, the resulting spurious frequency response is excluded by using the transfer characteristics of the multistrip coupler.