baber/WOPTO huggingface dataset:
Patent EP-0266687-A2 (EP)
Inventor: LERMER HELMUT DR
IPC: C07C49/395
Filed: 1987-10-30
Abstract: Die Anmeldung betrifft ein Verfahren zur Herstellung von Cyclopentanon aus Adipinsäureestern durch Umsetzung von Adipinsäureestern der Formel R¹OOC­(CH2)4­COOR² in der R¹ und R² Alkylreste mit 1 bis 12 Kohlenstoffatomen, Cycloalkylreste mit 5 oder 6 Kohlenstoffatomen, Aralkyl- oder Arylreste und R² zusätzlich Wasserstoff bedeuten, in der Gas- oder Flüssigphase bei Temperaturen von 150°C bis 450°C, in Gegenwart von zeolithischen Katalysatoren und/oder von Phosphat-Katalysatoren. Vorzugsweise werden als Katalysatoren Zeolithe des Pentasil-Typs verwendet.
Patent EP-0276390-A2 (EP)
Inventor: SCHLUMPF HANS-PETER
IPC: B29C45/00
Filed: 1987-11-13
Abstract: In the method for processing a polymer in the form of granules or a powder with powdery additives in an injection-moulding machine which has a screw with a feed zone of constant screw core diameter, an intermediate zone having a compressing and metering section and with a mixing element arrangement, with a view to particularly cost-effective processing to produce high-quality mouldings it is provided that the polymer and the powdery additives are introduced without prior working-up directly into the feed zone of the screw and that, in the feed zone, the polymer is thoroughly mixed with the powdery additives at least twice by means of mixing element arrangements, the effective length of the screw for processing being at least 19 times the screw diameter. 
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Patent EP-0272636-A2 (EP)
Inventor: YOSHIDA SUSUMU MITSUBISHI DENK
IPC: H01L31/06
Filed: 1987-12-17
Abstract: After a liquid-phase epitaxial growth step by an n-type GaAs saturated solution (21) is terminated, a substrate (1) is temporarily dipped in an undoped GaAs saturated or supersaturated solution (22), and thereafter liquid-phase epitaxial growth is performed by a p-type Al x Ga 1-x As saturated solution (23). Thus, the n-type GaAs saturated solution (21) is prevented from being mixed into the p-type Al x Ga 1-x As saturated solution (23) to contaminate the same, whereby a solar battery of high quality can be obtained even if the number of times of crystallization is increased.
Patent EP-0233011-A2 (EP)
Inventor: TADA KUNIO
IPC: H01L27/15
Filed: 1987-01-28
Abstract: An optical switch has a semiconductor waveguide region (2) formed on a substrate (1), with a cladding region (3) on a projection of the waveguide region (2). By controlling the fields applied to electrodes (4, 5, 6) on the substrate (1), the waveguide region (2), and the cladding region (3), the injection and extraction of carriers into and from the waveguide region can be controlled. It is found that the carriers can be removed rapidly through the electrodes (4, 5, 6) and this causes the switch to turn off very rapidly.
Patent EP-0255193-A2 (EP)
Inventor: WILSON JAMES M
IPC: C01G23/00
Filed: 1987-02-26
Abstract: A titanium acylate solution is produced by adding glacial acetic acid to tetra-isopropyl titanate. Distilled water is then added until the solution clears, and a high grade alkaline-earth metal carbonate, such as BaCO₃, SrCO₃ or CaCO₃, or a combination thereof, is added and agitated until the earth-metal dissolved and the solution again becomes clear. An alkaline hydroxide, such as NaOH, is added until the pH of the solution reaches 13 or 10 above, and causes crystal of an earth-metal titanate to form in the solution. The solution is thereafter filtered to produce an alkaline-earth metal titanate filter cake which is then dried and washed to produce the desired powder. At no time during the process is it necessary to apply any external heat to the solution. The heat of reaction is sufficient.
Patent EP-0240371-A2 (EP)
Inventor: ONODERA KAORU
IPC: G03C7/30
Filed: 1987-04-06
Abstract: A method of processing a light-sensitive silver halide photographic material is disclosed which comprises proces- ing a light-sensitive silver halide photographic material comprising a support and, provided thereon, at least one silver halide emulsion layer containing silver halide grains which are sensitized with a sensitizing dye of formula [I]
     wherein, Z 1  and Z 2  independently are each a group of atoms necessary to complete an unsubstituted or substituted heterocyclic ring which is a thiazole, benzolthiazole, naphthothiazole, selenezole, benzoselenazole, naphthoselenazole, benzimidazole, naphthoimidazole, pyridine or quinoline ring provided that Z 1  and Z 2  are not simultaneously a group of atoms completing a naphthothiazole, naphthoselenazole or quinoline ring; R, and R 2  independently are each an unsubstituted or substituted alkyl, unsubstituted or substituted alkenyl or unsubstituted or substituted aryl group; R 3  is hydrogen, a methyl group or an ethyl group; X 1   -  is an anion and ℓ is 0 or 1. 
     With a color developer solution comprising an aromatic primary amine color developing agent and at least one compound of formula [II] or a water soluble acid salt thereof:
     wherein, R 4  and R 5  independently are each an alkyl group.
Patent EP-0251671-A2 (EP)
Inventor: GRAEBNER PETER
IPC: E21B47/04
Filed: 1987-06-24
Abstract: A method and apparatus for determining the amount of stretch in a well logging cable is disclosed. An optical fibre (10) is run into a well with a logging cable (11) and looped back to the surface. A second optical fibre (14) of nominal length is maintained on the surface. A beam of monochromatic light from a source (17) is split and passed through both fibres and recombined. As the well logging tool (1) is raised and lowered into the wellbore, the number of interference fringes passing a fixed point is determined. The change in length of the optical fibre and, therefore, the cable will be equal to 1/2 the number of interference fringes passing a fixed point times the wavelength of light is used. A precise determination of vertical location of the well logging tool (1) can then be made when this information is combined with information from a surface mounted length measurement device, such as an odometer. This information further allows a precise determination of interval bulk density or other formation parameters in which it is important to know the depth of a tool.
Patent EP-0266151-A2 (EP)
Inventor: KRAUSE JEFFREY J
IPC: H04M11/06
Filed: 1987-10-26
Abstract: A method and apparatus for automatically and dynamically providing wiring connections at a central location coupled via ordinary phone lines to a plurali­ty of work stations including a master work station. A central hub (10) couples to a plurality of two wire tele­phone lines (16), each of which is coupled to an individual work station (18). The hub includes circuitry for monitor­ing transmissions to determine which of the work stations is the master. A receiver coupled to the master work station is coupled to transmitters to each of the other work stations. Receivers coupled to the remaining work stations are in turn coupled to a transmitter to the master work station.
Patent EP-0251880-A2 (EP)
Inventor: FRASER DANA
IPC: H01L23/495
Filed: 1987-06-23
Abstract: To reduce the effect of on-chip power rail perturbation on integrated circuit performance, a lead configuration is provided having two or more leads originating at a single terminal, e.g. a pin. While merged near the pin in a common segment, the leads connect on the integrated circuit chip to respective isolated internal rails of the same type serving respective device stages. Preferably, the inductance of the common segment is minimized. In accordance with the invention, an octal registered transceiver is provided with isolated V cc and ground rails for the latch and output buffers. The lead configuration described above is used for both V cc  and ground. Several circuits are improved to optimize performance of the device, including a DC Miller killer circuit. Also in accordance with the invention, the paddle of a PDIP leadframe is supported by tiebars that extend to the dambars at the sides of the leadframe. An additional lead is obtained from a conductive element originating near the paddle and supported by one of the two lead frame rails.
Patent EP-0248759-A2 (EP)
Inventor: CHIN ALBERT K
IPC: A61F2/958
Filed: 1987-05-19
Abstract: In a dilatation catheter (10) and constant pressure syringe (12), a pressurized compressible medium is used to maintain pressure on a non-compressible medium. Pressure is applied to a compressible medium in a first chamber (41), in turn applying pressure to a non-compressible medium in a second chamber (39). The use of appropriate quantities of each medium produces a nearly constant pressure as the incompressible medium is ejected from the syringe.
Patent EP-0278439-A2 (EP)
Inventor: SAKAMOTO SHUNJI MAZDA MOTOR CO
IPC: B62D7/15
Filed: 1988-02-06
Abstract: In order to check four-wheel steering characteristics of a four-wheeled vehicle provided with a four-wheel steering system in which both the front wheels and the rear wheels are turned in response to operation of the steering wheel according to preset four-wheel steering characteristics, the steering wheel is turned to turn the front wheels and the rear wheels, and the actual turning angle of the front wheels and the actual turning angle of the rear wheels are measured, thereby detecting the actual relation between the turning angles of the front and rear wheels. Whether the actual four-wheel steering characteristics of the vehicle deviates from the preset four-wheel steering characteristics is determined through comparison of the actual relation between the turning angles of the front and rear wheels with the preset four-wheel steering characteristics.
Patent EP-0279455-A2 (EP)
Inventor: MAEDA HIROFUMI
IPC: B29K23/00
Filed: 1988-02-19
Abstract: The present invention provides a process for production of expansion-molded articles of a linear low density polyethylene resin in a mold which comprises compressing pre-expanded linear low density polyethylene resin beads having two melting points (measured by differential scanning calorimetry) and having a ratio: 
    5%≦ A H  /A L  x 100% ≦80% 
using a pressurized gas, filling a mold capable of closing but incapable of sealing with said compressed beads, then venting said mold and heating and fusing the beads with steam, wherein the compression rate of the pre-expanded beads immediately before said heating with steam to the original pre-expanded beads is maintained at 5 to 60% (A L  being the peak fusion area at the melting point at the low temperature side (T ML ) and A H  being the peak fusion area at the melting point at the high temperature side (T MH )). According to the present invention, molded articles of linear low density poly­ethylene having a minimized dimensional shrinkage rate (good di­mensional accuracy) and excellent fusion rate and surface appearance can be produced in high productivity.
Patent EP-0282931-A2 (EP)
Inventor: HENTZSCHEL PETER
IPC: C08F236/10
Filed: 1988-03-12
Abstract: Aqueous-dispersed polymer compositions are prepared comprising polymerized therein (a) mono­vinylidene aromatic monomer (e.g., styrene), (b) acyclic conjugated diene monomer (e.g., butadiene), and (c) ethylenically unsaturated carboxylic acid monomer(s) (e.g. acrylic and or fumaric acid) and are further benefited by polymerizing therein (d) a cyanoalkyl ester of an ethylenically unsaturated carboxylic acid. The aqueous-dispersed polymers can also comprise polymerized therein an ethylenically unsaturated nitrile monomer such as acrylonitrile. The use of the cyanoalkyl ester, such as 2-cyanoethyl­methacrylate (2-CEMA), results in latex polymers with improved performance in paper coating formulations. In particular, paper coatings can be prepared which have improved performance (i.e., wet and dry pick resistance) in offset printing applications.
Patent EP-0282992-A2 (EP)
Inventor: MATSUI KENJI C O OMRON TATEISI
IPC: H04L29/06
Filed: 1988-03-16
Abstract: A memory (46) of a data carrier (40) attached to an article to be identified stores a classification code indicative of the data carrier's own communication protocol. Plural types of communication protocols are registered, in correspondence with the classification codes thereof, in the memory (24) of a controller (20) capable of communicating with the data carrier. Upon receiving a classification code transmitted by the data carrier, the controller selects from its memory a communication protocol indicated by the received classification code and then executes communication with the data carrier by using the selected communication protocol.
Patent EP-0286011-A2 (EP)
Inventor: ROBERTSON BENGT DEPT OF PEDIAT
IPC: A61K35/42
Filed: 1988-03-31
Abstract: A pulmonary surfactant of animal origin made up of a high percentage of phospholipids (≃ 99%), by a protein fraction and characterized by the absence of carbohydra­tes and cholesterol. 
     The surfactant of the invention, obtained through filtration, centrifugation and extraction and by chro­matography in inverse phase, allows better therapeutic results in the treatment of infant and adul respiratory distress syndromes (IRDS and ARDS).
Patent EP-0290973-A2 (EP)
Inventor: FILSS PETER DR
IPC: B01D53/34
Filed: 1988-05-06
Abstract: NOx can be removed from off-gas streams containing it by contacting the off-gases with a regenerable solids layer containing components which chemically react with the nitrogen oxides and bind them in the solids layer. To improve the removal of NOx including NO, a reactant which oxidises NO is added to the solids layer and NO is bound in the oxidised form in the solids layer. Above all permanganates, especially KMnO4, can be used as the oxidising component. 
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Patent EP-0291971-A2 (EP)
Inventor: CLUSSERATH LUDWIG DIPL-ING
IPC: B67C3/06
Filed: 1988-05-19
Abstract: In this method, the return gas to be carried away from the container to be filled in each case is carried away by differential pressure via a connection provided with a throttle device to a return- gas chamber, in which a pressure is set which can be adjusted within a pressure range lying between the filling pressure and the critical pressure of the throttle device. As a result, the flow rate with which the liquid to be filled flows into the container to be filled can be continuously matched to the filling properties of the liquid to be filled in each case and/or to the particular output requirement set for the filling device.
Patent EP-0297593-A2 (EP)
Inventor: IRIE KIYOSHI
IPC: B21C23/21
Filed: 1988-06-30
Abstract: The invention relates to the use of a compound represented by formula (I):
      wherein R represents an imidazolyl group, a thiazolyl group or a pyridyl group; n represents 1 or 2; and m represents an integer of from 1 to 4, 
or a pharmaceutically acceptable salt thereof for preventing and treating heart failure.
Patent EP-0298386-A2 (EP)
Inventor: REMPEL GARRY L
IPC: C08C19/02
Filed: 1988-07-01
Abstract: Selective hydrogenation of the carbon-carbon double bonds of conjugated diene copolymers is effective homogeneous solution in an organic solvent in the presence of certain divalent ruthenium carbonyl complex catalysts. The ruthenium catalysts have the general formula: 
    Ru(CO)HA(Z)₃      -(1) 
wherein A is a halogen atom, most preferably chlorine, or a hydrogen atom and Z is -PR₁R₂R₃ in which R₁, R₂ and R₃ are the same or different and are selected from alkyl and aryl groups, preferably all the phenyl group, or have the general formula: 
    Ru(CO)XY(Z)₂      -(2) 
wherein X is a carboxylate group, particularly ClCH₂COO-, Cl₂CHCOO-, Cl₃CCOO-, F₃CCOO-, CH₃COO-, C₆H₅COO- or p-ClC₆H₄COO-, Y is a halogen atom, preferably a chlorine atom or a bromine atom, or a hydrogen atom or a carboxylate group, Z is as defined above; or have the general formula: 
    Ru T(CO) (NO)(Z)₂      -(3) 
wherein T is a halogen atom, preferably a chlorine or bromine atom, and Z is as defined above; or have the general formula: 
    Ru T(NO) (Z)₂      -(4) 
wherein T and Z are as defined above; or have the general formula: 
    Ru H(NO) (Z)₃      -(5) 
wherein Z is as defined above; or have the general formula: 
    Ru (NO)₂(Z)₂      -(6) 
wherein Z is as defined above.
Patent EP-0300277-A2 (EP)
Inventor: GAFFAR ABDUL
IPC: A61K31/215
Filed: 1988-07-07
Abstract: Ibuprofen, pharmaceutically acceptable salt thereof or lower alkyl C₁₋₆ ester thereof, in solution in periodontal gum device comprising elongated handle member (12) terminating proximally in a flexible tip portion (14) provided with an aperture (23) for discharge of the solution which is effective to reduce gingival inflammation and swelling.
Patent EP-0291469-A2 (EP)
Inventor: ANTONIANI MARIO
IPC: F16F9/02
Filed: 1988-04-21
Abstract: A telescopic gas spring usable particularly for the raising of rear hatches of motor vehicles, in which the rod (3) has a portion (3a) with a reduced section for entering the pressure chamber (6) of the cylinder (2) in substantially the final part of the retraction stroke of this rod. The thrust chamber (6) is defined hermetically by an annular washer (9) in sealing sliding contact with the surface of the rod (3) and resiliently contractible in a radial direction to ensure the sealing even against the reduced-section portion (3a) of the rod (3).
Patent EP-0325266-A2 (EP)
Inventor: SCHMITT WERNER DR
IPC: A61K6/083
Filed: 1989-01-20
Abstract: Photopolymerisable dental compounds which can be cured in two steps and are based on ethylenically unsaturated monomers and/or polymers contain, besides fillers, a photoinitiator component I with a light absorption maximum < 450 nm and a molar extinction for the light absorption of < 10 at wavelengths of 470 nm and above, and a photoinitiator component II with a molar extinction for the light absorption of > 20 at at least one wavelength > 450 nm.
Patent EP-0336238-A2 (EP)
Inventor: ARAHARA KOHZOH
IPC: B41F35/06
Filed: 1989-03-23
Abstract: An image forming method comprising: providing an ink capable of changing its adhesiveness corresponding to the polarity of a voltage to be applied thereto; subjecting the ink to image formation by means of an image-forming apparatus comprising at least a pair of electroconductive members, while leaving a residual ink between the pair of electroconductive members; and applying a voltage to the residual ink so as to reduce the adhesiveness of the ink disposed on one of the pair of electroconductive members, thereby to remove the ink from the electroconductive member.
Patent EP-0335376-A2 (EP)
Inventor: YANO YASUHIRO
IPC: G06F3/048
Filed: 1989-03-29
Abstract: A portable electronic calculator includes a liquid crystal display unit (11) for performing display opera­tions in accordance with display signals, a key input unit (12) for entering various data, and an LSI (13), including a plurality of display signal output ter­minals, for performing key input wait processing for a key input from the key input unit (12), key input processing for determining a key when a key input is performed through the key input unit (12), operation processing for performing an operation corresponding to the determined key and generating display data in accordance with the operation result, and key presence/­absence processing for detecting the presence/absence of a key input from the key input unit (12) upon completion of the operation processing, and for intermittently driving the display signal output terminals in accord­ance with the display data during execution of the key input wait processing and the key presence/absence processing so as to cause the terminals to output pulse-like signals.
Patent EP-0352473-A2 (EP)
Inventor: FEIST HORST J
IPC: C04B41/82
Filed: 1989-06-21
Abstract: For the production of carbon electrodes, these are pushed in the second burning individually in rows through a straight burner pipe 1, with a flow of hot gas from a hot gas circulation around them. In the circulation, the hot gas flows through the combustion chamber 27 of a burner and is heated therein. The loading of the hot gas with gasified pitch and coke is burned at the same time in the combustion chamber. <IMAGE>
Patent EP-0351846-A2 (EP)
Inventor: TAKATSU HARUYOSHI
IPC: C09K19/30
Filed: 1989-07-20
Abstract: A phenylbicyclohexanol ester derivative which is a nematic liquid crystal compound having a weakly positive dielectric anisotropy is disclosed. This compound has a high N-I point and yet a low Δn value. When mixed with other nematic liquid crystal compound(s), it can give a liquid crystal display cell material having excellent visual properties and high-­temperature driving properties.
Patent EP-0366147-A2 (EP)
Inventor: SCHWARTZ CHRISTOPH DIPL-ING
IPC: B60R1/06
Filed: 1989-10-27
Abstract: An exterior mirror for a vehicle having a mirror base (2) which can be fastened to the body of the vehicle and a mirror casing (4) mounted on the mirror base with resilient force in the position of use, an edge (19), near to the mirror base, of the mirror casing (4) resting on a shoulder (10) of the mirror base (2) and the mirror casing (4) being able to swivel backwards in relation to the mirror base (2) about its rear edge section in the driving direction counter to the resilient force, and a locking element being attached to the mirror casing (4) or mirror base (2), and, in a swivel end position, being releasably captured in a trap constructed on the mirror base or mirror casing by means of a movement of the mirror casing going beyond the swivel end position. In order substantially to simplify the construction of this exterior mirror without adversely affecting its properties, provision is made that the locking element is a longitudinally extended engagement spring (40, 60) provided transversely to its longitudinal direction and with a section (44, 46, 68) adapted to the trap (29, 30; 80, 86), and a connecting member which displaces the engagement spring is provided, the path defined by the swivelling away movement of the mirror casing (4) of the section crossing the connecting member, or the path of the connecting member defined by the swivel movement of the mirror casing crossing the section in such a way that when the section is captured in the trap, the engagement spring (40, 60) is tensioned in a manner which releases it. <IMAGE>
Patent EP-0370451-A2 (EP)
Inventor: ENNEPER KLAUS
IPC: G01L5/00
Filed: 1989-11-21
Abstract: In a device for crimping terminals of connecting elements onto electrical leads, a lower tool is used wherein the connecting element assumes with its claws used for crimping connection a defined position with respect to an upper tool which can be moved in a lifting manner and which crimps them around an introduced lead. The force produced in each case during the lifting movement is measured by means of a force meter and signalled to an electronic analyzer. To obtain control over the respective crimping connection which is as simple and reliable as possible, it is proposed to let the force meter monitor a particular adjustable final value of the crimping force and, controlled by this, to let the analyzer directly determine the lower turn-over point of the lifting movement individually. At the same time, a length measurement is carried out in the direction of the lifting movement, at the time of the lower turn-over point and during this process the crimping height of the connecting element is determined. This actual value is signalled to the analyzer where a corresponding ideal nominal value of the crimping height is preset. Depending on the difference between the actual value and the preset nominal value, a faulty crimping connection is inferred by the analyzer when a particular tolerance range is exceeded during this process. <IMAGE>