baber/WOPTO huggingface dataset:
Patent EP-0343640-A2 (EP)
Inventor: YOKOYAMA TOSHIHARU
IPC: B01J23/32
Filed: 1989-05-24
Abstract: A process for producing a heterocyclic aldehyde is disclosed, comprising hydrogenating a heterocyclic carboxylic acid containing at least one atom selected from nitrogen, sulfur, and oxygen atoms or a derivative thereof with molecular hydrogen in the presence of a catalyst containing an oxide of at least one element selected from the group consisting of zinc, yttriun, lanthanides, and the elements of the group 4A of the Periodic Table. The process attains high conversions, high selectivities, and high yields.
Patent EP-0360978-A2 (EP)
Inventor: KANAMINE MICHIAKI C O FUJITSU
IPC: G11B5/31
Filed: 1989-05-30
Abstract: Magnetic head, having a thin film main magnetic pole (12), a spiral coil (14) of electrically conductive film to one side of the main magnetic pole (12), a first auxiliary magnetic pole (15) of thin film, covering the coil (14), and a second auxiliary magnetic pole (3; 31, 41; 32, 11) disposed to the other side of the main magnetic pole (12). The second auxiliary magnetic pole (3; 31; 32) is arranged so that edge noises due to magnetic fluxes generated at the second auxiliary magnetic pole by a magnetic transition of the recording medium (2) are cancelled with one another and minimised. One of these fluxes is a flux which passes through a distributed magnetic leakage path between the main magnetic pole (12) and the second auxiliary magnetic pole (3; 31; 32).
Patent EP-0345819-A2 (EP)
Inventor: ISHIDA RYUJI C O NEC CORPORATI
IPC: G06F7/38
Filed: 1989-06-12
Abstract: An overflow correction circuit is coupled to receive an output of an arithmetic operation circuit having first and second data inputs. The first data input is connected to an internal data bus so as to receive data to be subjected to an arithmetic operation, and the output of the arithmetic operation circuit outputs a result of arithmetic operation. The overflow correction circuit comprises a selector having a first input connected to receive the result of arithmetic operation from the arithmetic operation circuit and a second input and an output, an corrected value generating circuit having an output connected to the second input of the first selector, an overflow detection circuit coupled to receive the output of the arithmetic operation circuit and for generating an overflow signal indicative of whether or not there occurs an overflow in the result of the arithmetic operation. The first overflow signal is supplied to the selector so as to control the first selector in such a manner that when the overflow signal does not indicate occurrence of the overflow, the selector outputs the output of the arithmetic operation circuit as its output and when the overflow signal indicates occurrence of the overflow, the selector outputs the output of the corrected value generating circuit as its output. There is provided an accumulator having an input connected to receive the output of the first selector and an output connected to the second data input of the arithmetic operation circuit.
Patent EP-0360983-A2 (EP)
Inventor: DROSTE LOTHAR
IPC: B65B3/14
Filed: 1989-06-22
Abstract: In a device for filling small containers with a thin liquid medium situated in a storage vessel (15), an air pressure reducing valve (26), arranged in a housing (10), is connected upstream of the storage pressure vessel (15) and in the line (14) coming from a source of compressed air. The housing (10) is fitted with a central air and medium feedline (18, 19) with shutoff valves (22, 24). <IMAGE>
Patent EP-0350809-A2 (EP)
Inventor: WALTER HEINZ
IPC: B62D7/02
Filed: 1989-07-07
Abstract: The invention relates to steered axle regulating system with adaption of the hydraulic system pressure to the steering pressure requirement occuring for the purpose of reducing energy losses (load sensing). According to the invention, load sensing-like measures are used on the electronics side and thus, together with a proportional-pressure valve in the hydraulic system, an extensive load matching is achieved. For this purpose a position regulation error ( DELTA  phi ) which can no longer be compensated with the respective system pressure present is evaluated in % and the system pressure is correspondingly raised. In further embodiments a signal which reproduces the load of the steered vehicle is additionally evaluated and used to raise the system pressure. In a further, preferred embodiment, from the outset a vehicle speed-dependent steering pressure group of curves is predetermined, building on which the system pressure is raised in accordance with the vehicle load and position regulation errors. <IMAGE>
Patent EP-0355549-A2 (EP)
Inventor: BOTHE LOTHAR DR
IPC: B29C59/12
Filed: 1989-08-07
Abstract: A self-supporting sheet is described which contains a substrate layer and a structured coating on at least one surface of the substrate layer. The structured coating is manufactured by the treatment of at least one surface of the substrate layer by means of an electrical corona discharge which occurs between a voltage-conducting electrode and a counter electrode. At the same time in this process an aerosol which contains inert particles is injected into the corona discharge space during the corona discharge.
Patent EP-0358235-A2 (EP)
Inventor: KIDO MASARO
IPC: B32B27/08
Filed: 1989-09-08
Abstract: The present invention provides a polyimide resin laminate of one layer of a polyimide resin film and one or more layers of activated fluorine resin films, wherein undulations of 0.03 - 5 µm are formed on the outer surface of said fluorine resin films. According to the present invention, the slidability of the laminate is improved, troubles in the course of taping due to poor slidability is prevented, the taping workability is markedly improved and an improved quality of polyimide laminates is provided.
Patent EP-0364754-A2 (EP)
Inventor: GHISLANDI ERNESTO
IPC: C01F7/74
Filed: 1989-09-20
Abstract: Process for the production of aluminium sulphate, starting from the residual slimes of plants for the anodic oxidation of aluminium, according to the reaction: 
2Al(OH)₃ + 3H₂SO₄ ----- Al₂ (SO₄)₃ + 6H₂O 
According to the process slimes (1) undergo a homogenizing treatment (2) which allows them to be subsequently conveyed up to and into the reactor (4). The reaction temperature is kept between 90°C and 160°C, in order to allow the complete conversion of the aluminium hydroxide, and the reaction products are then freed by filtering (7) from any insoluble residues and impurities at a temperature not lower than 40°C. 
     The invention also comprises a special pump for conveying said slimes.
Patent EP-0364939-A2 (EP)
Inventor: KROGGEL MATTHIAS DR
IPC: C08F8/28
Filed: 1989-10-17
Abstract: Polymers containing polyvinyl acetal groups and acetalated polyvinyl alcohol groups on polyurethane graft bases can be prepared by known methods by reacting graft polymers which contain vinyl alcohol groups on polyurethane graft bases with aldehydes. Suitable aldehydes are all known aldehydes which are capable of acetalation reactions. 
<??>The polyurethane graft bases contain at least 2 urethane groups in the molecule and units of diisocyanates and diols, and polymer radicals comprising units of vinyl carboxylates having 3 to 20 C atoms and/or hydrolysis products thereof and optionally further monomer units are grafted onto the polyurethane graft bases. A proportion of the vinyl alcohol units in the hydrolysed or partially hydrolysed graft polymers before acetalation is > 10 % by weight. 
<??>The content of residual non-acetalated vinyl alcohol units in the acetalated polymer is > 7.5 mol-%, based on the molar content (= 100 mol-%) of vinyl alcohol units in the starting graft polyvinyl alcohol before acetalation. 
<??>Use of the graft polyvinyl acetals as a constituent of coating compositions, as a binder constituent for diverse substrates, as a material for thermoplastic mouldings and as an intermediate-layer film in laminated glasses.
Patent EP-0374408-A2 (EP)
Inventor: WENNEKERS PETER
IPC: H01L29/80
Filed: 1989-10-17
Abstract: In a field effect transistor, nonalloyed ohmic source-drain contacts (7, 8) are made possible, as the channel layer (3) is coated with lanthanide-arsenide which serves as contact-mediating layer and is covered with a very thin, conducting, monocrystalline, epitactic gallium-arsenide layer (10) on which nickel (11) is vaporized, an alloying step being dispensed with.
Patent EP-0372293-A2 (EP)
Inventor: DUENNLEDER WERNER DIPL-ING
IPC: C02F1/02
Filed: 1989-11-21
Abstract: The invention relates to a sanitary hot water installation (1) consisting of a cold water lead pipe (4) and a water heater (23, 32), a sanitary water reservoir (22), a charging pump (14) and a sanitary water distribution pipe (9) having tapping points (21). The invention is based on the object of creating a sanitary hot water installation (1) of the generic type mentioned at the beginning, which is economic in terms of power and guarantees independently of fluctuating tapped amounts a sufficient temperature or dwell time of the quantities of warm water reaching the sanitary water distribution pipe (9), in conjunction with as low as possible a killing temperature of Legionella pneumophila. This object is achieved according to the invention when the water heater (23), the sanitary water reservoir (22) and the charging pump (14) form a closed water cycle (14, 23, 22) with a relatively high disinfection temperature when tapping is not being done, the feed pipe (25) of the sanitary water reservoir (22) being connected to a heat exchanger (10) as cooler and said heat exchanger (10) being connected, in turn, to the sanitary water distribution pipe (9). <IMAGE>
Patent EP-0369518-A2 (EP)
Inventor: BERGMANS JOHANNES C O INTERNAT
IPC: G11B20/10
Filed: 1989-11-06
Abstract: A detector circuit assigns binary values to a series of sample values (a k ) taken periodically from a waveform representing a binary pattern of marks on a record carrier, the pattern of marks nominally having a minimum run length of more than one sampling period (T). The detector comprises means (96) for determining whether the pattern is subject to a first or a second type of systematic error which causes the marks on the record carrier to be systematically too short or too long respectively. The detector further comprises means (81,83) for combining a plurality of successive sample values (a k-1 , a k , a k+1 ) including a given sample value a k  to generate a combined sample value or values (a k-1  + a k , a k  + a k+1 ), means (85) for comparing the or each combined sample value with a threshold value (u′/u˝) and means (87,94,97) responsive to the result(s) of one or more such comparisons, for assigning a binary value (A k ′) to the given sample in a manner dependent on which type of systematic error is present. The detector may be included in an optical disc player.
Patent EP-0335524-A2 (EP)
Inventor: TAKAKI USAJI
IPC: C09B7/00
Filed: 1989-03-15
Abstract: An indigo compound is prepared by reacting an indole compound unsubstituted in the 2- and 3-­positions, with hydrogen peroxide in a liquid phase comprising an organic liquid. In one aspect, the liquid phase comprises at least two separate phases including an organic phase containing the indole compound and an aqueous phase containing hydrogen peroxide; in another aspect, the hydrogen peroxide is in solution in an organic solvent.
Patent EP-0335643-A2 (EP)
Inventor: KAZUMOTO YOSHIO C O CHUO KENKY
IPC: F25B9/14
Filed: 1989-03-28
Abstract: A refrigerator comprising a cold finger 3 having an expansion space 6 and a first compression space 7 defined by a displacer, a regenerator 9 connected to the expansion space and the first compression space, a cylinder 1 having a second compression space 8 and a buffer space 15 defined by a piston 2, and a communicating tube 5 connecting the first compression space to the second compression space. The working space thus defined is filled with the working gas so that a Stirling thermodynamic cycle can be generated in the working gas within the working space to generate coldness within the expansion space by reciprocatingly moving the piston and the displacer with a predetermined phase relationship therebetween. The refrigerator further comprises a first passage 31 having a check valve 32 between the working space and the buffer space, and a second connecting passage 35 connecting the drain space 36 and the buffer space. A hydrostatic displacer bearing 34 is provided for hydrostatically supporting the displacer against the cold finger utilizing a differential pressure of the working gas between the working space and the drain space.
Patent EP-0352885-A2 (EP)
Inventor: WILSON WILLIAM C
IPC: A01N31/02
Filed: 1989-05-17
Abstract: A method for enhancing the sweetness of citrus fruit comprising treating leaves and/or fruit of citrus trees with an effective amount of a dispersion contain­ing 1-triacontanol at least once in the period of from the flowering stage to the harvesting stage, thereby improving the Brix/acid ratio of citrus fruit.
Patent EP-0356202-A2 (EP)
Inventor: CAMPBELL RICHARD NORMAN
IPC: H01L21/8238
Filed: 1989-08-22
Abstract: A method of fabricating a MOSFET wherein sidewall spacers are provided adjacent the gate of the MOSFET, the method including the steps of providing an insulating layer which extends over the source, drain and gate of the MOSFET and which acts as an impurity diffusion barrier; and forming on the insulating layer sidewall spacers which are composed of an insulating material.
Patent EP-0369756-A2 (EP)
Inventor: KIZU SHIGEO INTELLECTUAL PROPE
IPC: H04N5/931
Filed: 1989-11-15
Abstract: An equalization apparatus in which a variable equalizer (204) is used to equalize the frequency response of an FM video signal obtained by frequency-­modulating a carrier signal with a video signal in which a reference signal of a constant frequency is inserted during a predetermined interval. The equaliza­tion apparatus includes a comparator section (210 - 215) for making a comparison in amplitude between first upper and lower sidebands in the FM video signal and a control section (217 - 220) for controlling the variable equal­izer (204) in accordance with an output of the compa­rator section.
Patent EP-0351396-A2 (EP)
Inventor: HERCOG MILAN
IPC: A43B5/04
Filed: 1989-07-05
Abstract: An inner shoe (1) for a ski boot consists of a support material (2) and a foam layer (3). This has local recesses (6, 7) which, not including the sole region, extend over at least 30% of the inner shoe surface, at least, on the one hand, one ankle recess (6), which in its dimensions corresponds at least to the field described by the movement of the ankle, being provided in the ankle region, and, on the other hand, one instep recess (7) being provided in the region of the tarsal bone. <IMAGE>
Patent EP-0392164-A2 (EP)
Inventor: HERB EUGEN
IPC: B60T8/00
Filed: 1990-02-20
Abstract: In the case of a procedure for determining the friction value between the road and the tyres of a vehicle when approaching a transverse dynamics-critical running state, the relevant values for the steering angle ( <IMAGE> ), the speed of travel (V), the yaw velocity ( <IMAGE>) and the transverse acceleration ( <IMAGE>) of the vehicle are measured or determined. In addition, a reference or set yaw velocity ( <IMAGE>) is determined as a function of the steering angle ( <IMAGE>) and the speed of travel (V) on the basis of a mathematical vehicle reference model. In addition, the difference between the actual yaw velocity ( <IMAGE>) of the vehicle and the reference or set yaw velocity ( <IMAGE>) is determined. Finally, that value for the transverse acceleration ( <IMAGE>) at which the yaw velocity difference ( <IMAGE>) begins to increase sharply is determined as a measurement of the friction value ( <IMAGE>) between the road and the vehicle tyres. <IMAGE>
Patent EP-0387789-A2 (EP)
Inventor: COOPERMAN MICHAEL
IPC: H04Q11/04
Filed: 1990-03-13
Abstract: A broadband switching array for equalizing the delay experienced by input signals as they propagate through their respective switching paths, and for providing output signals having uniform logical polarities. A cascaded set of delay means (SXX) is connected to each of the input ports of the array in accordance with the amount of additional delay that is needed to accomplish equaliza­tion. Likewise, a cascaded set of inverter means (30) is connected to each output port so that each switching path performs a common number of inversion operations, thereby allowing the output signals to have the same logical polarity.
Patent EP-0395033-A2 (EP)
Inventor: FURUYA SEIICHI C O INTELLECTUA
IPC: G06F1/16
Filed: 1990-04-25
Abstract: In a system of this invention, either a first type flat panel display unit (5, 7, 9) or a second type flat panel display unit (5, 7, 9) which is different in type from the first type flat panel display unit can be selectively, mechanically, and electrically connected and disconnected to and from a base unit (3). The base unit (3) includes a power supply (319) for applying a reference voltage, and applies the reference voltage to a display unit which is mechanically and electrically connected thereto. The first type flat panel display unit (5, 7, 9) is driven by the reference voltage. The second type flat panel display unit (5, 7, 9) includes a voltage converter (503, 903) and is driven by a voltage converted from the reference voltage. With the above arrangement, the system can use a plurality of flat panel display units with one base unit (3).
Patent EP-0402641-A2 (EP)
Title: Elektrische Fahrzeugheizung
Inventor: KUHN EDGAR DIPL-ING
IPC: B60H1/22
Filed: 1990-05-16
Abstract: Es ist eine elektrische Fahrzeugheizung vorgesehen, bei der ein Heizwiderstand (4) direkt vom Generator (10) mit Energie versorgt werden kann, jedoch nur dann, wenn innerhalb des Bordnetzes keine Fehler auftreten und nur dann, wenn wesentliche Elemente des Bordnetzes wie Batterieladezustand oder Fahrzeugtemperatur innerhalb vorbestimmter Grenzen sind. Bei Erkennen eines Fehlers wird dieser angezeigt und die Verbindung zwischen dem Heizwiderstand und dem Generator unterbrochen.
Patent EP-0424913-A2 (EP)
Inventor: KONDOH OSAMU C O MITSUBISHI GA
IPC: G02B6/122
Filed: 1990-10-24
Abstract: A main optical waveguide portion and/or branching optical waveguide portions of the optical waveguide is tapered (2C) in such a way as it expands towards the output side for reducing a coupling loss due to mismatching of numerical apertures N.A. between optical fibers (3,4) and the optical waveguide (2A,2B), wherein the light entering the optical waveguide at an angle determined by the numerical aperture N.A. of the optical fiber gradually reduces its angle of incidence to an interface of the core and clad as it passes by a portion where the taper is provided and when the light reaches to the output side of the optical fiber, the numerical aperture N.A. thereof is effectively reduced to a value which is lower than the numerical aperture N.A. determined by a difference of refractive-indices in the optical waveguidel and thereby, by making the numerical aperture N.A. of the optical waveguide little greater than that of the optical fiber, it is possible to reduce the loss at the input side as well as the loss at the output side simultaneously, and further, the taper is not necessarily be a straight taper but a curved taper can be used.
Patent EP-0433639-A2 (EP)
Inventor: BAGGIO GIORGIO
IPC: A43B5/04
Filed: 1990-11-08
Abstract: A securing and adjustment device particularly usable in ski boots (1) which comprise a vertical lever (5) and/or a knob (8) associated with at least one pulley adapted to takeup at least one traction element (6,9). The peculiarity of the device consists of the fact that it has at least one lever (13) for the partial slackening of the at least one traction element which can be activated independently of the vertical lever and/or the knob. It is thus possible to preset the amount of the slackening of the traction element so as to allow for example a partial opening of the quarters (3,4) and/or slackening of the degree of securing of the foot to allow the skier to walk optimally.
Patent EP-0435342-A2 (EP)
Inventor: SHOJI TAKEO C O CANON KABUSHIK
IPC: C08L83/04
Filed: 1990-12-28
Abstract: The present invention provides a cleaning blade of a cleaning device for eliminating remaining toner powder from a surface of an image-holding member. The cleaning blade is constituted of silicone rubber. The silicone rubber contains not more than 5 % by weight of a low-viscosity organosiloxane component, has rubber hardness within the range of from 40° to 90°, and cause permanent compression set of not more than 20 % according to JIS A.
Patent EP-0390562-A2 (EP)
Inventor: CHISM WAYNE R
IPC: G01R31/3183
Filed: 1990-03-29
Abstract: A method and apparatus for providing pulse signals from a driver circuit (10) in an in-circuit overdrive/functional tester to a probe (25), which tester provides a control signal representative of a command for the driver circuit to provide logic signals, includes adjusting the transition time of the logic signals so that the transition time is equal to twice the time it takes the pulse signal to travel from the driver circuit (10) to the end of the probe (25) and back. The method or apparatus for adjusting the rise time of the control signal can include adjusting the slew rate of the control signal. Pulse signals produced by such a method or apparatus have clean edges, have slew rates which are twice as fast as the slew rates of the driver signals and have zero propagation delay when measured at the fifty percent point.
Patent EP-0417925-A2 (EP)
Inventor: KARGER BARRY L
IPC: G01N27/447
Filed: 1990-08-23
Abstract: A microcapillary column for high performance electro­phoresis. A preferred column includes a microcapillary, a thin layer of coating material covalently bonded to the inner surface of the microcapillary wall, and a gel comprising polyacrylamide polymerized in the tube, filling it. A thin layer of hydrophilic polymer, adsorbed on the layer of coating material and located between the coating material and gel, may also be used. The gel-containing microcapillary is prepared by covalently bonding a layer of a suitable coating material to the inner surface of the microcapillary wall, and then causing a mixture of monomer with or without crosslinking agent, initiator, and polymerization catalyst to react in the bore of the microcapillary to form a polymeric matrix. In electrophoresis, the gel-containing microcapillary provides peak efficiencies in excess of 100,000 theoretical plates and in some instances over 1,000,000 theoretical plates within separation times of less than thirty minutes, permits trace level determinations of molecular weights, and permits electrophoretic operation at fields of 300V/cm or higher, resulting in extremely high resolution separations.