baber/WOPTO huggingface dataset:
Patent EP-0361965-A2 (EP)
Inventor: TOYOMAKI KAZUYA
IPC: H03M1/06
Filed: 1989-09-29
Abstract: A PWM type D/A converter having a first PWM converter (1), a second PWM converter (2) and an analogue adder(5)/subtracter(6). The digital input signals are designated as odd and even numbered input signals and the reference timing points for outputting odd/even numbered reference timing points are designated as odd/even numbered reference timing points. The first PWM converter receives the digital input signal to output signal whose rising/falling timing point is set at the earlier/later the timing, the larger the value of the odd/even numbered reference timing point relative to the odd numbered reference timing point and the pulse width is determined by the values of the odd numbered input signal and the next even numbered input signal. The second PWM converter receives the digital input signal to output signal whose falling/rising timing point is set at the later/earlier the timing, the larger the value of the odd/even numbered reference timing point relative to the odd numbered reference timing point and the pulse width is determined by the values of the even numbered input signal and the next odd numbered input signal. The second PWM converter is also made to determine the output signal by the complementary values of odd numbered input signal and the next even numbered input signal.
Patent EP-0367488-A2 (EP)
Inventor: BRAMHALL ROBERT BILLINGS JR
IPC: C23C14/56
Filed: 1989-10-25
Abstract: A platen assembly (66) for holding a semiconductor wafer (30) for vacuum processing. The platen is a substantially solid, circular plate (194) which is surrounded by a movable clamp assembly (192) in the form of a ring having formed thereon a first set of projections (257, 258) for initially receiving a wafer above the plate, and a second set of projections (256) spaced axially from the first set for clamping the wafer to the plate. The ring is formed of two parts (251, 252) spaced apart axially and connected by spring members (254). A slot (255) is formed in the ring to permit the entry of wafers between the sets of projections. The clamp assembly is moved between a wafer receiving position and a clamping position by an annular fluid cylinder (228) and piston (232) assembly. The fluid cylinder and piston assembly includes bellows seals acting between the cylinder and piston rods (238) to maintain the vacuum integrity of the system.
Patent EP-0369647-A2 (EP)
Inventor: HUPPERT JAMES C C O MINNESOTA
IPC: B24D13/06
Filed: 1989-11-02
Abstract: A hub (32) for a flap wheel assembly (30) adapted to finish an arcuate convex surface. The hub (32) has a central cross section around its axis with a circular periphery of a first diameter, opposite circular end cross sections axially spaced on opposite sides of the central cross section and having circular peripheries of second diameters substantially larger than the diameter of the central cross section, and a peripheral surface comprising a multiplicity of generally straight elongate surface segments extending between the peripheries of the end cross sections across and contacting the periphery of the central cross section with each segment crossing at a different radius of the central cross section from the axis of the hub (32) and being disposed at the same angle with respect to the axis measured about the radius crossed by the surface segment. A plurality of slots (56) along and generally parallel to the segments each are adapted for holding a straight edge portion of a generally rectangular flap member (52) with the width of the flap member projecting outwardly of the hub.
Patent EP-0327463-A2 (EP)
Inventor: SUZUKI ATSUSHI
IPC: G11C7/10
Filed: 1989-02-02
Abstract: A semiconductor memory device includes : a circuit (43, 45, 46) for defining a cycle (t R , t W ) in response to a clock (CLK) and a write enable signal ( WE ) and outputting a write control signal (WS) under a specific condition; a unit (30) for inverting the clock to an inverted clock ( CLK ); a circuit (47) for generating0 a write signal (WP) in response to the inverted clock when the write control signal is output; and a memory cell array (40, 40a, 40b) in which a write access of data (D IN ) is carried out based on the write signal. A register (44) is further provided which latches the write data (D IN ) and transmits it to the memory cell array in response to the inverted clock and the write signal. An input terminal and an output terminal can be made common (T5) by making a latch timing of the write data different from that of the write enable signal, or the number of input terminals can be decreased by inputting the write data in a time sharing mode. This results in a decrease in scale of the whole circuit as a device.
Patent EP-0332555-A2 (EP)
Inventor: BARKER BARBARA A
IPC: G06F40/14
Filed: 1989-01-03
Abstract: Application independent processing of data stream constructs permits meaningful and precise management of a data stream in a digital communications network. Data stream clutter is reduced and end user formatting is rendered more flexible by embedding tags in the data stream to a point in one or more shells accessible by the end user's work station. An application program is sim­plified by not applying rigid constraints to operators. All end user requirements for formatting, calls for rou­tines to process information and the like are resident at the end user's work station, all embedded in a shell. The shell is easily tailorable by the end user, and the appli­cation data stream is significantly diminished in size since tags in the data stream point to the shell.
Patent EP-0362161-A2 (EP)
Inventor: BUJATTI MARINA
IPC: H05K3/42
Filed: 1989-09-26
Abstract: A microwave integrated circuit formed on a sub­strate (22) comprising a body of insulating material having upper and lower surfaces with one or more holes (21) formed in said body to extend between the upper and lower surface and a metal filling said holes and extending between and coplanar with the upper and lower surfaces.
Patent EP-0369965-A2 (EP)
Inventor: MATSUMOTO TAKASHI
IPC: G06T15/30
Filed: 1989-10-31
Abstract: An image display apparatus comprises first buffers for storing depth values of front boundary surface positions, of a clipping area, for corresponding pixel positions on a screen and second buffers for corresponding depth values of back boundary surface positions. Comparing means are provided to compare these depth values with corresponding depth values for positions on an object to be displayed, in order to determine whether the object positions are within the clipping boundaries.
Patent EP-0380970-A2 (EP)
Inventor: WENDORFF ERNST
IPC: F16L33/22
Filed: 1990-01-18
Abstract: In a pipe connection, the special feature consists of an opposing bearing piece, which is fitted in the interior of the pipe to be connected and is provided with opposing bearing surfaces, and of a clamping device, provided on the outer side of the pipe, which has pressure surfaces which interact with the opposing bearing surfaces of the opposing bearing piece. In the process for manufacturing this pipe connection, an opposing bearing piece is fitted into the one end of the pipe to be connected and hence produces an outward bulge of the pipe, to which the clamping device is fitted. <IMAGE>
Patent EP-0386546-A2 (EP)
Inventor: JALBERT RONALD L
IPC: C08G59/00
Filed: 1990-02-23
Abstract: Thermoplastic blend compositions comprise a crystalline polyalkylene terephthalate, a styrenic polymer component, and a diepoxide. The styrenic polymer component comprises a rigid portion formed from at least one monomer selected from the group consisting of styrene, halogen-substituted styrene, alpha-methyl styrene and para-methyl styrene, and at least one additional ethylenically unsaturated monomer, and a rubber portion including polybutadiene.
Patent EP-0387735-A2 (EP)
Inventor: WASHBURN ROBERT D
IPC: H02M7/06
Filed: 1990-03-10
Abstract: A power supply (10) includes a source (11) of AC power, a filter (30) including inductive elements (23, 27), and a rectifying circuitry (21). Where the AC source (11) comprises a sinewave source, the filter (30) includes inductive and capacitive elements (23, 27, 25, 29) and the rectifying circuitry includes rectifying diodes. The inductive filter (30) reduces the current surges or spikes caused by diode turn off recovery.
Patent EP-0399255-A2 (EP)
Inventor: WASSERSTROM HENRY
IPC: G01K5/72
Filed: 1990-05-02
Abstract: A temperature switch assembly which includes a bimetal element (50) inserted into a holder body and secured in place by a mating shell (70) is presented. The holder body is constructed so that it may be screwed into existing bore holes of the vessel or engine. The bimetal element is formed with tangs on its base so that expansion and contraction effects due to temperature changes are compensated thus ensuring calibration of temperature switch over prolonged usage. The mating shell includes a switch contact (73). When the reaches a predetermined temperature, the bimetal element makes contact with the switch contact and completes the circuit. The circuit is connected to a warning device which is actuated when the circuit is completed.
Patent EP-0416248-A2 (EP)
Inventor: SERFONTEIN WILLLEM JACOB
IPC: A61K31/44
Filed: 1990-07-13
Abstract: A new use of vitamin B6 as an active ingredient in a pharmaceutical composition, more particularly where such B6 is used in combination with xanthine-type bronchodilatorss in compositions and methods for the treatment and prophylaxis of obstructive air passage diseases, in particular bronchial asthma. The composition contains an effective amount of said vitamin B6 formulated to counteract elevated serotonin levels in plasma and urine and serotonin associated side effects arising in the treatment or prophylaxis of obstructive air passage disease with a xanthine bronchodilator, such as
     a) decreased responsiveness to the xanthine bronchodilator;   b) CNS side effects.   
     The vitamin B6 is provided in a combination with the xanthine bronchodilator, as dosage units, but as separate and distinct compounds, and the dose by weight of vitamin B6 is substantially lower than that of the xanthine bronchodilator, preferably in a ratio of vitamin B6 to xanthine bronchodilator of 1:2 to 1:70, more preferably 1:8 to 1:30, and wherein preferably the vitamin B6 as well as the xanthine bronchodilator are incorporated in a slow or sustained release form.
Patent EP-0413352-A2 (EP)
Inventor: URANO SATOSHI
IPC: C09D133/26
Filed: 1990-08-17
Abstract: Disclosed is a solvent based coating composition comprising at least one kind of vinyl polymer and an organic solvent, wherein any one of said vinyl polymer has at least one kind selected from the group consisting of an active hydrogen-containing group and a substituted acylamide group, and said vinyl polymer contains the above described two kinds of group as a whole.
Patent EP-0420104-A2 (EP)
Inventor: BERNARDI LODOVICO
IPC: B01D45/08
Filed: 1990-09-24
Abstract: Device (5) adapted for allowing the separation, by decanting, of powderlike and low-weight particles present in air flows, having one or more separators/decanters (9), arranged individually or in parallel or in series and associated with the discharge of air flow thereof. Each of the one or more separators/decanters (9) has a first cylinder (11) which has an essentially frustum-like shape and is connected, in a downward position, to means (12,13) for the removal of the powderlike and low-weight particles. Each separator/decanter (9) further has, in an upward position, a second coaxial cylinder (14) which is shorter and partially protrudes therefrom. The second cylinder (14) has a plurality of radial deflector vanes (16) for slowing and conveying the air to be treated to the vortex and is connected, in an upward position, to the first cylinder (11) of at least one adjacent separator/decanter (9).
Patent EP-0420145-A2 (EP)
Inventor: WINTER FRANK G DIPL-CHEM LEHRS
IPC: G01N21/31
Filed: 1990-09-25
Abstract: A method and arrangement are described for the simultaneous determination of several elements by using the element-specific radiation of a radiation source, the radiation sources being pulsed with different frequencies, and the emitted radiation being separated by an optical arrangement of lenses and light guides in interference filters after passing through an atomiser and being evaluated by means of a light detector, so that the signals of the individual lamps and, consequently, the individual element separations are detected as a result of the different frequencies. In a further development, all the hollow-cathode lamps can be pulsed with the same frequency and the element separation is carried out by means of the "time" parameter.
Patent EP-0451345-A2 (EP)
Inventor: AIDAM ECKHARD
IPC: G01N1/28
Filed: 1990-12-03
Abstract: Situated in the apparatus for test-gas treatment between heated gas collection line (1) and unheated outlet line (8) is an aerosol trap which consists of a cylindrical vessel (4) which has a heating sleeve (2) around the inlet region and which is filled with quartz granules (5). The length and cross-section of the vessel (4) and the particle size of the quartz granules are so dimensioned that the flow rate of the gas in the vessel is at least one power of ten less than in the feed and drain lines. The apparatus is used in the treatment of gas for gas analysis, in particular in monitoring combustion waste gases. <IMAGE>
Patent EP-0435307-A2 (EP)
Inventor: FUJIMOTO NOBUHIRO
IPC: H04Q11/00
Filed: 1990-12-28
Abstract: A photonic switching system includes an optical link conversion board (1, 11) having a first end and a second end opposite to the first end, a plurality of wavelength converter elements or variable wavelength light emitting elements (2, 4) arranged at a constant pitch along the first end of the optical link conversion board and outputting optical signal components having different wavelengths, a combiner (5-7) for combining the optical signal components received from the wavelength converter elements or light emitting elements into an optical signal which includes optical signal components having a plurality of wavelengths, a plurality of light output parts arranged at a constant pitch along the second end of the optical link conversion board, and a deflector (23, 8) for sequentially deflecting the optical signal from the combiner to an arbitrary one of the light output parts in response to a control signal so that the optical signal at the arbitrary light output part includes a plurality of optical signal components having different wavelengths.
Patent EP-0443208-A2 (EP)
Inventor: AKAMATSU NORIO
IPC: G06N3/063
Filed: 1990-12-31
Abstract: A neural coupling is composed of a pair of primary and secondary members (13,14) for coupling a precedent node (10) to a subsequent node (11) to synaptically transmit a signal through a neural network. A primary member is receptive of a signal from a precedent node for generating an inductive field according to the received signal. A secondary member is spatially coupled to the primary member through the inductive field for producing to a subsequent node a corresponding signal in response to the inductive field so as to effect synaptic transmission of the signal through the neural network.
Patent EP-0434154-A2 (EP)
Inventor: WIECZOREK HERFRIED DR
IPC: H01L27/146
Filed: 1990-12-17
Abstract: In a device for reading out the charges of a plurality of sensor elements (12, 13, 22, ...) arranged in a matrix with a read-out line (82, 83) common to each sensor column and a switching line (19, 29, ..., 79) common to each sensor row, to reduce the read-out capacities provision is made that, for every sensor column, a plurality of segmented read-out lines (91, 92, ...) are additionally provided which can each only be connected to a few sensor elements (12, 13, 22, ...) in a column via their switches (2) and which can be switched individually to the common read-out line (82, 83) of the column by means of further electrical switches (4, 5), and that, for a read-out operation on a sensor row of each column, those segmented read-out lines (91, 92, ...) which are connected to the activated sensor row via their switches (2) can be switched to the common read-out lines (82, 83). 
<IMAGE>
Patent EP-0393918-A2 (EP)
Inventor: ASHWORTH STEWART IVES THE IVES
IPC: B24C3/06
Filed: 1990-04-11
Abstract: With reference to Figure 1, apparatus 1 for treating a surface, in this example the painted surface 2 of an aircraft fuselage 10, comprises an upright disposed canopy 3 for placing (as shown) in close proximity to the surface 2. The canopy 3 defines an aperture 4 allowing access to the surface 2 of a pressurised mixture of abrasive material and fluid, and is provided with a flexible duct 5 for subsequently collecting the mixture after use. 
     The abrasive media comprises particles of plastics or natural material, which are only mildly abrasive, whereby only paint is removed from the surface 2, leaving the anodised layer of the surface undamaged. 
     The abrasive mixture is supplied by a hand-held blast gun 6, which is preferably of the form disclosed by UK Patent No. 2,065,514. The gun 6 is provided with an internal mixing chamber whereby separate flows of the abrasive particles and water are introduced via supply ducts 7, 8 of flexible construction, before being discharged on to the surface 2 by way of a nozzle. The abrasive mixture can also be fed to a blast nozzle by way of an air-fed injector connected to a pressurised container. 
     The canopy 3, which is of box-like form, is provided with flexible seal 15 held in place by suckers 16.
Patent EP-0415717-A2 (EP)
Inventor: HATAKEYAMA TAKUYA C O CANON KA
IPC: G03G15/08
Filed: 1990-08-28
Abstract: An image forming apparatus includes an image bearing member (1); a system for forming a latent image on the image bearing member; a developing device (100) for developing the latent image formed on the image bearing member (1), the developing device (100) including plural developing units (101M, 101C, 101Y, 101BK), and each of the developing units including a developer carrying member movable to carry thereon the developer to supply the developer to the image bearing member (1) and a developer scatter preventing member at a position adjacent the developer carrying member; a driver for moving a selected one of the developing units to a predetermined position faced to the image carrying member; a device for positioning the selected developing unit to an operating position for a developing operation; a member (109) which is contacted to or close to the scatter preventing member (200) when the selected developing unit is placed at the operating position.
Patent EP-0435855-A2 (EP)
Inventor: KAJITA HIROSHI
IPC: G03G15/23
Filed: 1985-10-03
Abstract: A mechanism for preventing feeding of copying paper sheets in the superposed state. 
     Said mechanism comprises a conveying roller (132) having a peripheral surface and mounted for rotation in a predetermined feeding direction; a frictional member (246) and pressing mechanism means for selectively moving said frictional member (246) between an operating state in which it acts on said peripheral surface of said conveying roller (132) and a non-operating state in which it is spaced from said peripheral surface of said conveying roller (132), said pressing mechanism including an oscillating arm (266) supporting said frictional member (246), said oscillating arm (266) being mounted for oscillating movement between a first position at which it maintains said frictional member (246) in said operating state and a second position at which it maintains said frictional member (246) in said non-operating state. 
     Said pressing mechanism means further includes a supporting member (270) mounted on said oscillating arm (266) for movement relative thereto over a predetermined range toward and away from said conveying roller (132). Said frictional member (246) is mounted on said supporting member (270). A pressing spring member means (278) interposed between said oscillating arm (266) and said supporting member (270) for, when said frictional member (246) is in said operating state, elastically maintaining said frictional member (246) in pressing contact with said peripheral surface of said conveying roller (132)
Patent EP-0480369-A2 (EP)
Inventor: MAGARA TAKUJI
IPC: B23H11/00
Filed: 1991-10-08
Abstract: A wire-type electronic discharge machining apparatus capable of attracting material (20) from a workpiece (10) to an integral electromagnet. An aperture (5a) is located proximate the electromagnet. When material is attracted by the electromagnet, the aperture will be obstructed. Attraction is confirmed by measuring pressure in a chamber in communication with the aperture.
Patent EP-0483763-A2 (EP)
Inventor: TURNER RAYMOND L
IPC: B23K35/36
Filed: 1991-10-29
Abstract: A non-toxic, non-corrosive water-soluble soldering paste comprises at least about 80 wt% of particulate solder and the balance a thixotropic flux base having a viscosity of at least about 200,000 cp. The flux base comprises (a) a botanical oil, (b) an aqueous emulsion of a thickening agent, such as corn starch or an ethoxylated linear alcohol in water, and (c) an organic acid having at least two carboxylic acid groups, such as citric acid. The paste of the invention produces solder joints of high metallic luster and excellent quality. Clean-up of paste residues is accomplished using only water.
Patent EP-0490288-A2 (EP)
Inventor: SCHUELE PAUL J
IPC: H01L27/10
Filed: 1991-12-06
Abstract: A method of forming a planar storage capacitor element having a noble metal or noble metal alloy top electrode (22), a layer of lead zirconate titanate (20), and a noble metal or noble metal alloy bottom electrode (16,18).
Patent EP-0491449-A2 (EP)
Inventor: LEHNERT ERHARD
IPC: F16D65/56
Filed: 1991-11-18
Abstract: Such a device operates according to the so-called single nut system with a non self-locking threaded part (5) and an adjusting nut (6) acting in concert with this, and with a spring-supported adjusting sleeve (7), it being possible to engage or disengage the adjusting sleeve (7) by means of a first coupling (8) in order to prevent or facilitate the rotation, and a second coupling (10) being provided between the piston (2) and the threaded part (5) when the first coupling (8) is disengaged. In order to achieve a shorter length and smaller diameter and a compact accommodation of the adjusting device, it is proposed that the adjusting sleeve (7) be arranged in a hollow chamber (11) of the piston (2), that the brake force be introduced through a central, short piston core section (2e) of a central piston rod (2j), that the adjusting nut (6) be of hollow construction and have an internally threaded section (6a) and that it engage by the internally threaded section (6a) in the external thread (5b) of the threaded part (5). <IMAGE>
Patent EP-0443717-A2 (EP)
Inventor: TANAKA MASATO C O PATENTS DIV
IPC: H05K1/02
Filed: 1991-01-18
Abstract: A component mounting circuit board (30) comprises a flexible member (31) having a plurality of component mounting portions (32A to 32D, 33A to 33D) and a plurality of foldable portions (34A to 34C) in alternating relation along a given direction of the flexible member (31). Pre-determined electronic components (35A to 35D, 36A to 36D) are mounted on at least one side of the flexible member (31) at the component mounting portions (32a to 32D, 33A to 33A). The flexible member 31 is folded at the foldable portions (34A to 34C) to superpose the component mounting portions are above another in a plurality of layers. The flexible member may have a plurality of extension portions extending from the component mounting portions, shield patterns can be formed on the extension portions, and the extension portions can be folded even so as to shield the electronic components.