baber/WOPTO huggingface dataset:
Patent EP-0291276-A2 (EP)
Inventor: SCHUUR JOHN
IPC: G01N21/55
Filed: 1988-05-10
Abstract: In identifying and testing the location of unmasked areas on a semiconductor wafer (10), the surface of the wafer (10) is scanned with two laser beams (26,52). The power of each reflected beam is a function of the optical reflectivity of the surface of the wafer(10). The optical reflectivity of the unmasked areas is different from the masked areas. Power measurement of the reflected beams by photo detectors (64,72) and a processor (30) is used to identify the location of areas to be measured. A pump beam (26) is intensity modulated by a modulator (28) and then used to periodically excite a region in the identified unmasked area. A probe beam (52) is then directed within the periodically excited region and the periodic changes in the power of the reflected probe beam, induced by the pump beam, are measured by the processor (30) to evaluate ion dopant concentrations or the effects of processing steps, such as etching, on the surface of the water (10).
Patent EP-0293217-A2 (EP)
Inventor: TAKEUCHI MOTOHIKO C O PATENT D
IPC: H04N9/64
Filed: 1988-05-27
Abstract: A memory system for processing a composite analog video signal, the composite analog video signal including a luminance signal and two color difference signals. The memory system includes a color separation circuit (12) for separating the composite analog video signal received from a source (10) thereof into the luminance signal and two distinct color difference signals, analog-to-digital converters (14, 16, 18) for separately converting each of the luminance signal and two distinct color difference signals into corresponding digital signals, a memory circuit for temporarily storing the digital luminance signal and two distinct digital color difference signals for a prescribed time and digital-to-analog converters (32, 36, 38) for converting the delayed digital luminance signal and the digital color difference signals into corresponding analog signals, characterized in that the memory system further includes a multiplexer (24) coupled to the analog-to-digital converters (14, 16, 18) for combining the three separate digital signals from the analog-to-digital converters (14, 16, 18) into a single digital multiplex signal and a demultiplexer (30) for separating the stored digital multiplex signal from the memory circuit into separate delayed digital luminance signal and two digital color difference signals, and wherein the memory circuit includes a singular memory (28) coupled between the multiplexer (24) and the demultiplexer (30) for temporarily storing the digital multiplex signal for a prescribed time.
Patent EP-0299617-A2 (EP)
Title: Steering gear with speed sensitive detent system
Inventor: SCHIPPER WILLIAM ROBERT
IPC: B62D6/02
Filed: 1988-06-09
Abstract: A speed-sensitive detent system for a variable effort power-assisted steering gear. A detent support portion (36,38) on an output member (24) of the steering gear has a plurality of internally-threaded radial insert bores (112a-d) therein. A detent insert (114) is threaded into each insert bore (112a-d) and includes a detent bore (116), the centreline of which is offset from the centreline of the corresponding detent insert (114). A detent ball (122) is received in each detent bore (116) and is biased by a servo-fluid pressure into a detent groove (100a-d) in an input member (64) of the steering gear angularly aligned with the insert bore (112a-d). After a rotary valve (84) of the steering gear is balanced during assembly of the steering gear, the detent inserts (114) are rotated in their insert bores (112a-d) until the centrelines of the detent bores (116) intersect the centres of the detent grooves (100a-d) so that the detent balls (122) do not upset the hydraulic balance of the rotary valve (84) when biased into the grooves (100a-d) by the servo-fluid pressure.
Patent EP-0313309-A2 (EP)
Inventor: ONOGI YUKIO
IPC: H02K17/30
Filed: 1988-10-18
Abstract: In a variable speed controllable induction motor which has a unitary rotor (2) having a plurality of rotor cores (2A,2B) provided thereon with rotor conductive members (5) short-circuited by resistive members (r), a plurality of stators (25,26) surroundingly facing the respective rotor cores (2A,2B) and a phase shifter (60) producing phase differences between the voltages induced on sepa­rate portions of the conductive members (5), there are provided a phase difference detector (92) or rotated position detector (92A,92B,92C,92D), a rotations number detector (91), and a control device (70). The control device (70) calculates the necessary amount of operation of the phase shifter (60) for starting the motor or for effecting the speed changing operation thereof during the operation based on a phase difference detected by the phase difference detector (92) or the rotated position detector (92A,92B,92C,92D) and the actual number of revolutions of the rotor (2) detected by the rotations number detector (91), and, thus, the operation of the phase shifter (60) driven by a driving device (50) is automatically and quickly controlled until the actual number of revolutions reaches the desired number of rev­olutions set by a revolutions number setting device (94).
Patent EP-0316178-A2 (EP)
Inventor: SATO SHINYA
IPC: G11B23/30
Filed: 1988-11-10
Abstract: A tape cassette having a projector insertion recess provided in the bottom of the cassette adjacent the cassette front between supply and take-up reels enclosed within the cassette, light receiving window apertures provided in both side walls of the cassette to allow the light from a light emitting element inserted in the projector insertion recess to be passed laterally therethrough, and a lid pivotably mounted on the front side of the cassette via arms pivoted on the side walls, so that in a stored condition, the light receiving window holes are closed by the arms of the lid, characterised in that baffles are provided adjacent the light receiving window apertures provided in both the side walls of the cassette into the cassette via the apertures, thus preventing dust from entering the cassette
Patent EP-0323136-A2 (EP)
Inventor: RYAN FRANCIS XAVIER
IPC: C07C1/00
Filed: 1988-12-22
Abstract: A method is disclosed which provides improved control over the noble-metal exchange of zeolite catalyst by using bulky organic bases to control pH during the metal loading step.
Patent EP-0289404-A2 (EP)
Inventor: JOHNSON KEITH M
IPC: A61F2/24
Filed: 1988-04-21
Abstract: An improved heart valve having an annular valve housing (10) and two leaflets (12,14) supported for pivotable movement within the annular valve housing. Each leaflet is pivoted about an axis (58,60) displaced from the center of the valve housing. When open, the leaflets pivot away from the center of the valve housing allowing for central flow. The valve leaflets are provided with curved indentations (82,84) which engage curved projections (42,22) from the valve housing which serve both to retain the valve leaflets within the housing and to define and control their pivotal movement during opening and closing.
Patent EP-0282430-A2 (EP)
Inventor: BOTSIS NICOLAOS
IPC: F16H3/72
Filed: 1988-02-05
Abstract: The invention consists of two epicyclic systems using a number of controlling mechanisms in a way to result in a self-adjusting C.V.T. system, having also the ability of brake energy storage and recirculation.
Patent EP-0323407-A2 (EP)
Inventor: BRUTTEL BEAT DR
IPC: D06L4/664
Filed: 1988-12-20
Abstract: Beschrieben werden umhüllte Wirksubstanzen sowie ein Verfahren zu deren Herstellung, wobei als Wirksubstanz Farbstoffe, optische Aufheller, Photoaktivatoren und/oder Textilantimikrobica gegebenenfalls in Kombination mit Coupagemitteln, Dispergiermitteln, Puffern, Stabilisatoren und/oder weiteren Hilfsmitteln eingesetzt werden.
Patent EP-0330183-A2 (EP)
Inventor: KOSHI HIROYUKI
IPC: G01J3/443
Filed: 1989-02-22
Abstract: In a fluorescence spectrophotometer a first spectrum of fluorescence is measured emitted by a sample in a state where the wavelength of excitation light is fixed to an arbitrary wavelength (Steps 31, 32, 33); a second spectrum of fluorescence is measured emitted by the sample in a state where the wavelength of excitation light has been changed to another wavelength (Steps 34, 35); and the wavelength when corresponding peaks in the two spectra are approximately in accordance with each other is set for the fluorescence wavelength emitted by said sample (Step 36).
Patent EP-0327136-A2 (EP)
Inventor: ROSENBERG DAVID JOHN
IPC: A61M1/36
Filed: 1985-04-11
Abstract: A blood filter (10) such as may be used in a cardiopulmonary bypass system includes a housing (27) having upper and lower chambers (49, 36) with a cylindrical filter element (26) disposed in the lower chamber (36). The inlet (28) to the housing is in the upper chamber (49), which is upstream of the lower chamber (36), and the outlet (29) is through the lower chamber (36) and communicates with the interior of the filter element (26). Thus, blood enters the upper chamber (49) and flows to the lower chamber (36) where it passes through the filter element (26) from the outer side to the interior to remove microemboli such as gas bubbles, fat emboli and agglomerates, the filtered blood exiting through the outlet (29). In order to remove a substantial amount of the gas in the blood, and particularly gross bubbles, upstream of the filter element (26), the upper chamber (49) is cylindrical and the inlet (28) directs the blood tangentially to flow around the periphery of the chamber (49). An annular baffle (53) extending around a major portion of the chamber (49) maintains the peripheral flow which produces a centrifugal action causing the blood to flow at the wall of the chamber (49) and the gas to separate and move to the central portion where it is vented through a hydrophobic membrane (51) covering the central portion (49a) of the top wall of the chamber (49). Blood from the periphery of the upper chamber (49) flows down to the lower chamber (36) through a sponge ring (69) which removes additional gas bubbles.
Patent EP-0342338-A2 (EP)
Inventor: FERRON FRANCESCO
IPC: A47J27/022
Filed: 1989-03-27
Abstract: A cooking vessel made of light metal, e.g. aluminium, such as a pan, roaster or saucepan having a heat-resistant and form-stable bottom made of a plurality of closed surfaces which are formed by intersecting groovings. The groovings advantageously have a triangular cross-section with a groove depth of between 0.5 and 2 mm, the grooves being manufactured without material abrasion, e.g. by embossing or compression. The groovings subdivide the resting surface of the bottom of the vessel into a multiplicity of small surfaces which advantageously have a regular shape, e.g. a rectangular, triangular or hexagonal shape. The size of these surfaces is between 0.5 and 2 cm<2>.
Patent EP-0345674-A2 (EP)
Inventor: OKUMURA KIN-ICHI
IPC: C08G61/08
Filed: 1989-06-03
Abstract: Described herein is an oily, transparent reaction product which is prepared by heat treating at 110-220°C a dicyclopentadiene and a vinyl aromatic compound. This reaction product can be polymerized by ring-opening in presence or absence of a norbornene monomer to produce a thermoset polymer. Freezing point of the reaction product is below 10°C.
Patent EP-0348936-A2 (EP)
Inventor: FUJIO KATUHARU
IPC: F04C18/02
Filed: 1989-06-28
Abstract: The scroll gas compressor of the invention is so constructed that an enclosed container (1) is partitioned by a fixed scroll member (15) into a high pressure chamber (6) and a low pressure chamber (46) for gas-­liquid separating intake refrigerant and storing it, the low pressure chamber being disposed at the lower portion and the high pressure chamber at the upper portion of enclosed container, the high pressure chamber disposing therein a drive unit (3) related to a scroll compression mechanism and a lubricating oil sump (34), and the fixed scroll member serving also as part of the bottom of the lubricating oil sump, thereby providing that is small-sized, wide in an operational speed range, and superior in durability, and that prevents absorption of heat and noise propagation from the low pressure chamber serving as both the gas-liquid separation chamber and the reservoir of fluid, thereby improving the compression efficiency and lowering noise.
Patent EP-0367917-A2 (EP)
Inventor: LENDERMANN WILLI
IPC: A61H9/00
Filed: 1989-08-11
Abstract: The invention relates to an apparatus for carrying out either aquapuncture or hydro-ionisation, which apparatus has a water supply line and discharge line, in which respect the outlet of the water supply line provided with at least one nozzle and the inlet of the water discharge line are combined in one block to which there is connected a tubular support in which rebound surfaces for the hydro- ionisation are arranged. It should be possible for such an apparatus to be used without reconversion for both types of use (aquapuncture or hydromassage on the one hand and hydro-ionisation on the other hand) and it should be easy to handle, and the surroundings should not become wet during this handling. According to the invention this is achieved by virtue of the fact that the outlet of the water supply line in the block has two channels which can be connected up alternately and of which the first is intended for aquapuncture and the other for hydro-ionisation, and by virtue of the fact that the rebound surfaces are made up of inside wall areas of the tubular support and/or of surface areas of the block. <IMAGE>
Patent EP-0374512-A2 (EP)
Inventor: RISCH TORE J M
IPC: G06F17/30
Filed: 1989-11-23
Abstract: A method of monitoring objects in an interactive object-­oriented database system. Any of a plurality of client programs can request monitoring of attributes of objects in the database. A record is kept of update transactions initiated by a client. When the client commits the changes, any client which has requested monitoring is notified of any change in the value of an attribute being monitored at the request of that client. The notification interrupts the client and invokes a predesignated client procedure. Overhead is minimized by creating partial view materialization paths and defining monitors ahead of time and by localizing the monitoring.
Patent EP-0372324-A2 (EP)
Inventor: WITTMANN DIETER DR
IPC: C08L51/00
Filed: 1989-11-24
Abstract: Polyester moulding compositions are flameproofed by addition of phosphoric acid esters, tetrafluoroethylene polymers and optionally halogen compounds, without impairment of the mechanical properties and processing properties of the moulding compositions.
Patent EP-0374575-A2 (EP)
Inventor: MATSUNO JUNICHI
IPC: B65H9/16
Filed: 1989-12-05
Abstract: A register mechanism for a printing printer is capable of correcting shift and skew of sheets of paper (1) which are conveyed by a plurality of paper conveying passages and of temporarily stopping the conveyance of the papers (1) while they are brought into register with a toner image. The register mechanism includes: oblique belts (4, 5) provided in each of the paper conveying passages; a guide plate (6, 7) for restricting inclination of the paper (1) located on the oblique belt (4, 5); and pivot members (8, 8a, 8b) for correcting skew of the papers (1), which is located at a joined portion of the paper conveying passsages where the sheets of paper (1) whose shift has been corrected by the respective guide plates (6, 7) are joined, and downstream of the conveying passages at a distance shorter than the length of the paper (1) in the conveying direction from the end of the guide plates (6, 7).
Patent EP-0324644-A2 (EP)
Inventor: SHERMAN HAROLD G
IPC: G21C17/017
Filed: 1989-01-13
Abstract: Apparatus for remotely controlled movement through linear and curved sections of a pipe, or other tubular conduit includes a pair of spaced members (10,12) each carrying a plurality of extensible and retractable feet (34-40) for movement into and out of engagement with the interior wall of the pipe and one or more drive cylinders (22,24) connecting the spaced members for movement thereof towards and away from one another. The apparatus carries equipment, such as a TV camera (52), for inspecting, measuring and/or performing other operations on the pipe.
Patent EP-0328329-A2 (EP)
Inventor: TAKAFUJI YUTAKA
IPC: G09F9/30
Filed: 1989-02-06
Abstract: A liquid crystal display device comprising a liquid crystal display cell (23) arranged between the first and second polarizers (21, 22) is disclosed. In the liquid crystal display device, the applied voltage between electrodes (25, 27) is controlled by a switching element (24) so as to drive picture elements defined at the crossings between the first and second transparent electrodes (25, 27), and the light incident to at least the rim portion of the first transparent electrode (25) and the switching means (24) is shaded by a shading film (32) formed in the liquid crystal display cell (23).
Patent EP-0336664-A2 (EP)
Inventor: GUTIERREZ ANTONIO
IPC: C09K23/52
Filed: 1989-03-31
Abstract: The present invention is directed to a lactone modified dispersant additive comprising at least one adduct of (A) a polyolefin of 300 to 10,000 number average molecular weight substituted with at least 0.3 (e.g., from about 1 to 4) dicarboxylic acid producing moieties (preferably acid or anhydride moieties) per polyolefin molecule, (B) an amido-amine or thioamido-amine characterized by being a reaction product of at least a polyamine and an alpha, beta-unsaturated compound of the formula:
     wherein X is sulfur or oxygen, Y is -OR 4 , -SR 4 , or -NR 4 (R S ), and R 1 , R 2 , R 3 , R 4  and R 5  are the same or different and are hydrogen or substituted or unsubstituted hydrocarbyl, and a Cs - C 9  lactone material.
Patent EP-0337697-A2 (EP)
Inventor: OGLETREE MARTIN L
IPC: A61K31/557
Filed: 1989-04-10
Abstract: A method is provided for preventing, reducing or reversing adverse reactions, such as pulmonary hypertension produced when protamine interacts with heparin, by administering a thromboxane A₂ receptor antagonist.
Patent EP-0340959-A2 (EP)
Inventor: BAKER III CHARLES R
IPC: H01L23/60
Filed: 1989-04-24
Abstract: A package (10) for integrated circuit chips, or other electrical devices, provides mechanical shock and thermal protection for the chips, and in addition, protects the chips from electromagnetic interference and electrostatic discharge. The package includes a printed wiring board base (12) for reception of one or more circuit chips (24), and a conductive heat sink and cover (14). The conductive heat sink, in conjunction with a reference plane (18) in the wiring board base (16), acts as an EMI shield for the chips. The heat sink is covered with an insulating layer, on top of which, a conductive coating is placed. The conductive coating is electrically connected to the reference plane (18), and the two act to protect the chips from electrostatic discharges. Compliant pads support the chips, and a thermally conductive elastomer can be placed on top of each chip between the chips and the inner top surface of the heat sink. The chips are thereby held securely in position, and are thermally connected to the heat sink.
Patent EP-0343855-A2 (EP)
Inventor: MAGALHAES FRANK M
IPC: H02M3/28
Filed: 1989-05-18
Abstract: A DC to DC converter combines a half-bridge inverter (211-213, 221-223) with a resonant rectifier (237, 241, 242) through a series LC circuit (226, 227) which conducts power at substantially a single frequency. Energy stored in the parasitic capacitors (213, 223) of the two power switches (211, 221) are transferred from one parasitic capacitor to the other in order to enhance efficiency of operation. The transfer is controlled by controlling the relative phase between the voltage and current in the inverter section.
Patent EP-0349233-A2 (EP)
Inventor: PALMER MICHAEL FRANK
IPC: F24H9/20
Filed: 1989-06-26
Abstract: A method of and apparatus for heating a space such as a room, work place or tie like comprising a gas or oil-­fired burner, a heat exchanger and a fan arranged to blow air from the heat exchanger into the space and which is operable at high and low speeds. A first adjustable thermostat serves to control the output of the burner so that the temperature of the heated air remains substantially contant and a second adjustable thermostat, having upper and lower settings, is arranged to control the burner and the speed of the fan depending on the temperature of the space being heated.
Patent EP-0350223-A2 (EP)
Inventor: SUGIYAMA NORIYUKI
IPC: C08L59/00
Filed: 1989-06-30
Abstract: A polyacetal resin composition is prepared by melt-kneading a polyacetal resin (A) (99 to 40 wt. %) with a thermoplastic polyurethane (B) (1 to 60 wt. %) in the presence of a polyiso­cyanate compound, a polyisothiocyanate compound or a modification thereof (C) in an amount of 0.1 to 10 wt. % based on the total of A and B.
Patent EP-0369769-A2 (EP)
Inventor: CUSSLER EDWARD L
IPC: B01D15/08
Filed: 1989-11-15
Abstract: Liquid chromatography separations of solutes are achieved using porous hollow fibers. The pores of the hollow fibers immobilize a solute-absorbing phase (preferably organic) which has a greater absorbance affinity towards at least one solute in a mixture of solutes. By passing the solute mixture through the central lumen of the hollow fibers, chromatographic separations are realized due to the greater retention time of that solute with which the immobilized phase has greater absorbance affinity. The immobilized phase may be a liquid organic which may contain a surfactant so as to form reversed micelles or it may be in the form of a polymeric gel. Separations of biological species (e.g., proteins) may thus be accomplished by means of the present invention.
Patent EP-0325520-A2 (EP)
Inventor: SAUER GERD
IPC: H05B3/26
Filed: 1989-01-17
Abstract: The circuit supplies electric current and is particularly suitable for a vehicle in that it provides two different application voltages. One of these is the normal on-board network voltage and the other is a voltage higher than the on-board voltage for supplying a heated window incorporating a heating resistance in the form of a thin layer. The generator (41) is provided to supply the higher voltage, which is at least equal to that required for the operation of the heated window. When the heated window is switched off, the voltage supplied by the generator (41) is adjusted by the control circuit (40) to the on-board network voltage (B+). When the heated window is switched on, the on- board network voltage is derived from the higher voltage (G+). To ensure reliable operation, additional monitoring elements are provided in the form of an interval timer (44) for temporarily and briefly lowering the excitation current of the generator (41) during the switching of the regulator cut-out (45), a master clock (46) for limiting the heating time and a threshold switch (49) for limiting the voltage (G+) from the generator. 
<IMAGE>
Patent EP-0333597-A2 (EP)
Inventor: BLIN VALERIE
IPC: G01M11/00
Filed: 1989-03-17
Abstract: The compensator consists mainly of a fixed set of lenses F1, F2 and a moveable set of lenses F3, F4, F5, the two sets having the same optical axis and being placed at a distance from each other. Application particularly to the checking of a telescope mirror. <IMAGE>