baber/WOPTO huggingface dataset:
Patent EP-0400892-A2 (EP)
Inventor: ELANGO VARADARAJ
IPC: C07C45/46
Filed: 1990-05-23
Abstract: A method is provided for the preparation of ibuprofen by carbonylating 1-(4′-isobutylphenyl)ethanol (IBPE) with carbon monoxide in an acidic aqueous medium, e.g. containing at least 10% of water based on the weight of IBPE initially added, at a temperature of at least about 10°C and a carbon monoxide pressure of at least about 500 psig, and in the presence of (1) a catalyst complex consisting essentially of a palladium compound in which the palladium has a valence of zero to 2 and is complexed with at least one monodentate phosphine ligand miscible with the organic phase of the reaction medium, the phosphorus/palladium mole ratio in said palladium compound and ligand being at least about 2:1 when the palladium/IBPE mole ratio is such that palladium=1 and IBPE=10,000 or more; (2) dissociated hydrogen ions from an acid which is substantially completely ionizable in dilute aqueous solution such that the mole ratio of hydrogen ions to IBPE added to the reaction zone is at least about 0.15; and, (3) dissociated halide ions such that the mole ratio of halide ions to IBPE added to the reaction zone is at least about 0.15. Advantageously, a hydrogen halide is the source of hydrogen ions and halide ions. The carbonylation is preferably integrated with a method of producing IBPE from isobutylbenzene wherein the latter compound is subjected to Friedel-Crafts reaction with an acetylating agent to produce 4-isobutylacetophenone, which is then reduced with hydrogen in the presence of a hydrogenation catalyst, or with a reducing agent containing available hydrogen, to obtain IBPE. 
     The palladium catalyst complex can be precipitated from an organic phase of the carbonylation reaction which typically includes the ibuprofen product. The precipitated catalyst complex can be recycled without further treatment.
Patent EP-0400998-A2 (EP)
Inventor: HASEBE ATSUSHI C O SONY CORPOR
IPC: G06T7/20
Filed: 1990-05-30
Abstract: An apparatus for to extracting a video signal corresponding to a moving object in a video signal representing moving and stationary object comprises means for detecting a contour in the video signal and storing the contour data of successive frame in two frame buffers. Contour data stored in the two frame buffers are compared with each other so that a transition between corresponding portions of the two frame buffers are detected. This transition image is also stored in another memory and additional pixel transitions are interpolated at pixels having adjacent transitions. Thereafter, an area encompassed by the pixels representing the transition is combined with the video signal so that a motion video signal can be extracted.
Patent EP-0403113-A2 (EP)
Inventor: SHENAI KRISHNA
IPC: H01L21/332
Filed: 1990-05-31
Abstract: A multi-cellular power field effect semiconductor device (100) includes a tungsten silicide (134)/polysilicon (132)/oxide gate electrode (131) stack with low sheet resistance. Preferably, a layer of tungsten (136) is also disposed in intimate contact with the source region of the device. This tungsten layer (136) is self-aligned with respect to the aperture in the gate electrode (131) through which the source region is diffused. The presence of this tungsten layer greatly reduces the resulting ohmic contact resistance to the region. If desired, a tungsten layer can also be disposed in contact with the drain region (114) of the device, again, to lower ohmic contact resistance. The device has substantially improved operating characteristics. Novel processes for producing the device are also described.
Patent EP-0446524-A2 (EP)
Inventor: LIBIN BARRY M
IPC: A61K8/73
Filed: 1990-12-12
Abstract: An oral hygiene composition that when brushed on or otherwise applied to the surface of teeth and adjacent gum tissue acts not only to bleach the teeth but also to improve the condition of the gums. The composition includes both magnesium peroxide and magnesium hydroxide, the magnesium peroxide, when activated, being capable of releasing active oxygen to effect a bleaching action removing stains from the teeth surfaces and to whiten and brighten them, and at the same time to oxidize and destroy anerobic bacteria associated with dental plaque. The magnesium hydroxide renders the pH of the magnesium peroxide alkaline, whereby the composition, when stored in a toothpaste tube or other sealed container remains inactive, and is activated only when the composition is applied orally and rendered acidic in the mouth by saliva.
Patent EP-0437136-A2 (EP)
Inventor: MARCHAND ALAIN
IPC: F16C33/56
Filed: 1990-12-20
Abstract: The process, which can be used in particular for forming the bearing cage, enables porous articles impregnated with lubricant to be formed. According to the process, a mixture is made up from base material and metal wool consisting of fibres whose average diameter is less than 0.1 mm, the ratio of the material and fibre volume contents lying between 100/30 and 100/200 and the said material being of such a nature that it enables a solid preform which has a low coefficient of friction and is not very brittle to be formed by moulding, injection, extrusion or pultrusion; the said preform is formed; the said preform is machined into the final shape; the metal wool is removed by chemical etching in order to create an open porosity; and the pores are impregnated with a lubricant. <IMAGE>
Patent EP-0442399-A2 (EP)
Inventor: KEIL GUENTER DR
IPC: C08J5/18
Filed: 1991-02-09
Abstract: Aromatic copolyamides are described, which are soluble in organic amide solvents. The polymers are composed to at least 95 mol % of repeat structural units A: -OC-AR-CO- B: -HN-Ar'-NH- C: -HN-Ar''-NH- <IMAGE>  <IMAGE>  <IMAGE>  in the combinations A+B+C+D, or A+C+D+E and up to 5 mol % of m-bond-containing structural units F and/or G derived from aromatic dicarboxylic acids (F') and/or from aromatic diamines (G'), the sum total of the mole fractions of structural units A+F and the sum total of the mole fractions of the structural units of B+C+D+E+G being essentially the same, -Ar- and -Ar'- are divalent aromatic radicals whose C-N valence bonds are in a para-position or in a similar coaxial or parallel position and which may be substituted by one or two inert radicals, such as lower alkykl or halogen,  <IMAGE>   is a trivalent aromatic radical which after removal of the -SO2R group has the same meaning as -Ar- or -Ar'- or else is the structural unit  <IMAGE>   wehre X is -O-, -NHCO-, -SO2- or -CO-, -R is lower alkyl and -R' is lower alkyl or alkoxy, and the proportions of the diamine components B, C, D and E are within the following limits: B: 25-47.5 mol % C: 7.5-30 mol D: 45-67.5 mol and E: 20-40 mol.
Patent EP-0485925-A2 (EP)
Inventor: CONSIGLIO PIETRO
IPC: H04M1/82
Filed: 1991-11-11
Abstract: Monolithically integratable switch with reduced power dissipation, particularly for telephone sets and the like, comprising a first integratable switch (10) which is connected in parallel to a series connection of a second integratable switch (11) and a resistor (12). The parallel connection is arranged on a branch (13) of a telephone line. The switches are driven by control means (15) which close or open the switches.
Patent EP-0492267-A2 (EP)
Inventor: ZATLER ANDREJ
IPC: H03M1/44
Filed: 1991-12-10
Abstract: The converter input i is connected through a comparator to the polarity bit output as we as to the input of a full-wave precision rectifier in the first quantization stage, which like further stages comprises an operational amplifier, a comparator and an exclusive OR gate, the output of which is connected to the output for the first bit. To the inverting input of the amplifier with the gain equal to 2 through the potentiometer a voltage -U o /2 is fed, (-U o ,  +  U o ) being the interval of the input voltage. The input of the rectifier is connected to the input i and the input of the rectifier in further stages is connected to the output of the operational amplifier in the previous stage. The second input of the exclusive OR gate is connected to the bit output of the previous stage.
Patent EP-0492586-A2 (EP)
Inventor: NAGAMINE MASAYUKI SONY ENERGYT
IPC: H01M4/62
Filed: 1991-12-23
Abstract: A nonaqueous-electrolyte secondary cell is disclosed which comprises a positive and negative electrode (1,2) and nonaqueous electrolyte. Each of the negative and positive electrode is formed of electrode mix layer comprises a binding agent and active material carrier or active material. The electrodes are thus formed to satisfy the intensity ratio (I1/I2) of a first peak (P1) near a diffraction angle of 17.7° to a second peak (P2) near a diffraction angle of 18.5° in an X-ray diffraction pattern obtained with the Cukα radiation for the electrode mix layer is from 0.3 to 0.6.
Patent EP-0468557-A2 (EP)
Inventor: SPADAFORA PETER JOHN
IPC: H02P1/18
Filed: 1991-06-18
Abstract: The motor current in a vehicle antilock brake system motor driven pressure modulator is increased in stepwise fashion to ramp the brake pressure in the apply phase of an antilock braking cycle. At the beginning of each current step as the motor current is increased in stepwise fashion, the motor torque is increased momentarily at least by an amount to assure that the static friction of the pressure modulator is overcome and that motor rotation is initiated. The motor torque is increased to a value to initiate motor rotation at the beginning of each current step by momentarily increasing the motor current to a value greater than the current step value by a predetermined amount that assures that the increase of motor torque exceeds the static friction of the pressure modulator.
Patent EP-0454373-A2 (EP)
Inventor: COLEGROVE GEORGE T
IPC: D01F9/00
Filed: 1991-04-19
Abstract: Gellan gum fibers are produced by extrusion into a gelling salt bath. Optionally, other gums may be co-extruded with the gellan gum. The fibers are useful for the production of wound dressings and catamenial devices.
Patent EP-0469746-A2 (EP)
Inventor: KIMURA HISASHI
IPC: H04N5/77
Filed: 1991-07-16
Abstract: In a video camera apparatus (1) in which an imaging device (8) converts a light image derived by a lens 93) into an electric signal, picture information and/or sound information, which has been previously recorded in an external memory (6), is combined with the video signal and/or the sound signal of said electric signal to enable a variety of picture information items and/or sound information items to be combined therewith by interchanging the external memory means (6).
Patent EP-0486139-A2 (EP)
Inventor: SWANFIELD EDWARD R
IPC: C03B9/38
Filed: 1991-09-19
Abstract: A cooling system for a glassware forming machine in which air is delivered to each of two plenums for upward flow of air through vertical passages in mold members on the plenums from an air outlet in the base of the machine via a tubular air dust having its lower end axially slidable in a part-spherical knuckle mounted for universal movement in an annular bearing in the air outlet having an internal part-spherical surface,and its upper end externally formed with a part-spherical formation mounted for universal movement in a part-spherical annular bearing at the bottom of the plenum.
Patent EP-0488652-A2 (EP)
Inventor: TAKEMURA OSAMU
IPC: B41J2/385
Filed: 1991-11-26
Abstract: An image forming apparatus comprising a pair of electrodes (50,60) disposed on the opposite surfaces of a substrate (30) having a plurality of toner passages (31) in such a manner that an electric field can be formed inside each of the toner passages (31) so as to allow charged toner to pass therethrough. The charged toner is fed on one electrode (50) by means of a toner feed member (15). The toner feed member (15) is moved away from the toner passages (31) by means of a shifting member (13) when an image forming operation is not performed.
Patent EP-0479713-A2 (EP)
Inventor: LIN PI-CHU
IPC: B25B21/00
Filed: 1991-03-19
Abstract: An electric wrench includes a motor (10), an electromagnetically controlled clutch (70) comprising electromagnet members (71) and a temporary magnetizable member (72). A centrifugal control switch (82) is provided to de-energize the electromagnet members (71) when the drive shaft (30) connected to the motor (10) spins at a predetermined rate of rotation and to energize the electromagnet members (71) when the drive shaft (30) spins slower than the predetermined rate of rotation. The centrifugal control switch (82) is actuated by a centrifugal swinging device (81).
Patent EP-0508444-A2 (EP)
Inventor: KUMAMOTO CHIAKI
IPC: G06F9/52
Filed: 1992-04-10
Abstract: The name for identifying the task group which is applied to a task belonging to the same task group is selected from a management table for managing the name for identifying the task group provided at a system area of a main memory to set the selected name for identifying the task group to the field of an area for retaining the name for identifying the task group of a task group control block, which is provided at a user area of the main memory, to enable or block the execution of the task according to the value of the dispatching control flag. If any arbitrary task within the same group reaches the breaking point, then the dispatching control flag is put into the blocking condition to block the execution of all the tasks within the same group by issuing an interrupting request to the task being executed, which has the same name for identifying the task group. With this condition, the processing is passed to the debugging and, after the debugging has been completed, the dispatching control flag is enabled to enable the reexecution of all the tasks, so that the multitask job can be processed per unit of the same group to ease the debugging.
Patent EP-0513835-A2 (EP)
Inventor: FUMAGALLI CARLO DR
IPC: B01J31/12
Filed: 1992-05-15
Abstract: A novel, very selective process for the catalytic air oxidation of pseudocumene to trimellitic acid is described. Manganese, cobalt, cerium and titanium in the presence of bromine are use according to the invention as the catalyst.
Patent EP-0514056-A2 (EP)
Inventor: ELBRECHT ALEX
IPC: A61K31/57
Filed: 1992-05-01
Abstract: Fertilized poultry embryos are treated with estrogens or antiandrogens or estrogens in combination with antiandrogens during a period of embryonic development when the gonads are bipotential. This treatment causes genetic males to exhibit a female phenotype. When sex reversed male birds are crossed with normal male birds all offspring will be genotypically male.
Patent EP-0522785-A2 (EP)
Inventor: JACKSON JAMES ROGER
IPC: F21K2/00
Filed: 1992-07-01
Abstract: A phosphorescent panel with a durable, easy to clean surface comprises a glass pane with an exposed glass surface and a phosphorescent layer behind said surface, wherein said phosphorescent layer incorporates a phosphorescent component having a long persistence time; it is preferred to use a phosphorescent pigment which emits light for at least 30 minutes after the source of excitation is removed. 
     The phosphorescent layer may comprise a phosphorescent pigment incorporated in a paint formulation, preferably an epoxy paint formulation, applied to the glass; a light reflective coating, for example, white paint may be applied over the phosphorescent layer. Alternatively, the panel may comprise a laminate with an interlayer comprising a phosphorescent pigment cast between glass panes. 
     The phosphorescent panels are useful in providing emergency light and in the production of signs.
Patent EP-0527626-A2 (EP)
Inventor: INOUE KIYOSHI
IPC: B23K11/00
Filed: 1992-08-10
Abstract: A spark-deposition electrode (3) is supported with an axially deformable elongate body (41) which consists, e.g. of a giant magnetostrictive material surrounded by an electromagnetic coil (42) and secured to a solid member. The coil (42) is electrically energized to effect an expansion/contraction of the body (41) along its axis at a predetermined amplitude to cause a bi-directional displacement of the depositing electrode (3) corresponding to the amplitude of the expansion/contraction of the deformable body (41), there instantaneously positioning the electrode (3) relative to a substrate (1) and controlling a gap therebetween. A spark discharge is produced between the electrode (3) and the substrate (1) across the instantaneously controlled gap in the presence of a depositing substance to transfer and fuse it in a small amount onto the substrate (1). The solid member and the substrate (10 are relatively displaced to sweep the electrode (3) over a selected surface of the substrate cumulatively over the surface. A lever (16) is coupled between the body (41) and the electrode (3) to magnify a displacement of the body (41) and to apply a magnified displacement to the electrode (3) so that a highly accurate positioning of the spark-deposition gap is attained. An actuator assembly incorporating the body (41) and including the lever member (16) is machined by wire-cut electrical discharge machining in a manner of "drawing a picture in a single stroke of the brush".
Patent EP-0553701-A2 (EP)
Inventor: REHFUSS JOHN W
IPC: C08G18/10
Filed: 1993-01-20
Abstract: A coating composition is described comprising two components that are reactable with each other to cure the coating. The two components are:
     (a) an epoxy-functional polyurethane component that is the reaction product of:
   (i) a polyisocyanate compound, and   (ii) an epoxide compound comprising an isocyanate-reactive group and a single epoxy group.       (b) a component comprising at least two groups that are reactive with the epoxy groups on the polyurethane compound.
Patent EP-0588333-A2 (EP)
Inventor: HAIDUK HERBERT
IPC: H02G11/00
Filed: 1993-09-15
Abstract: A guide chain replacement for guiding, for example, an electric cable arrangement (15) between a stationary device (11) and a device (13) which is linearly movable back and forth, having a cable deflection roller (17) around which a region of the cable arrangement (15), located between the stationary device (11) and the movable device (13), is guided in a loop with at least partial wrapping around the cable deflection roller (17), and which, due to the movement of the movable device (13) with the cable arrangement (15) rolling along the cable deflection roller (17), is movable back and forth between two end points located on different sides of the cable deflection roller (17) at a linear speed which is half as fast as the linear speed of the movable device (13), and having a rope arrangement which is stretched between the two end points, which engages on the cable deflection roller (17) or on at least one pulley arranged on its axle, and by means of which the cable deflection roller (17) can be moved back and forth between the two end points. The rope arrangement is designed as a block and tackle device (31,33) having at least one block and tackle with a stationary block and tackle roller (35,37) and at least one block and tackle roller (39,41) which is movable relative to the latter, and having a fixed rope end (51,53) and a free rope end (55,57) which is movable relative to the latter. The stationary block and tackle roller (35,37) is arranged at one of the two end points, and the movable block and tackle roller (39,41) is formed by the cable deflection roller (17) or the pulley arranged on its axle. The free rope end (55,57) is guided around a rope deflection roller (43,45), which is arranged at the other one of the two end points, and is fastened to the movable device (13). <IMAGE>
Patent EP-0595407-A2 (EP)
Title: Technical apparatus, particularly electromechanical drive for information carriers
Inventor: KAEMMLER GEORG C O PHILIPS PAT
IPC: G11B31/00
Filed: 1993-10-20
Abstract: The invention relates to a technical apparatus, in particular an electromechanical drive for the moving of information carriers, having at least one plastic functional part (45a) which is formed on a baseplate (2) by being injection-moulded onto the latter by the outsert-moulding technique and comprises at least one web part (48), which reaches through an opening (46) in the baseplate (2), and holding pieces (51a, 51b), which are located on the baseplate surfaces (2a), are connected by the web (48) and the plastic of which shrinks after the injection-moulding, the functional part (45a) making itself freely movable as a rotary part or slide on the baseplate (2) of its own accord by its shrinking by virtue of the following design:   1. the web (48) is provided with holding pieces (51a, 51b) only on one baseplate surface (2a); 2. the diameter of the opening (46) in the baseplate (2) widens towards the surface (2b), which is free from holding pieces; 3. the web (48) is provided with a flange (52), which fills the diameter widening (49) when plastic flows in during the injection-moulding.   <IMAGE>
Patent EP-0592216-A2 (EP)
Inventor: EZAKI TADASHI C O SONY CORPORA
IPC: H04N7/083
Filed: 1993-10-07
Abstract: A data decoding device capable of decoding plural kinds of data superimposed in a vertical blanking period of a video signal. The device comprises means for detecting the line number and the intraline position in the vertical blanking period from vertical and horizontal sync signals and generating a line signal extract pulse, a data signal extract pulse and a reference signal extract pulse; binary circuit means for converting the video signal into a binary signal; PLL means for producing a data extract clock signal in synchronism with a clock reference signal extracted on the basis of the line signal extract pulse and the reference signal extract pulse; memory means supplied with the data extract clock signal and the binary signal in response to the line signal extract pulse and the data signal extract pulse, and storing the data signal therein; and control means capable of designating a plurality of durations for generating the respective extract pulses and a plurality of frequency division ratios in the PLL means. In the device, the circuits are usable in common to achieve curtailment in the production cost.
Patent EP-0596685-A2 (EP)
Inventor: MCKAY ROBERT BRUCE
IPC: C09D11/02
Filed: 1993-11-01
Abstract: A lithographic printing ink containing, as colourant, a major amount of a pigment having a relatively small crystal size and a minor amount of a coloured compound having a relatively larger crystal size.
Patent EP-0604149-A2 (EP)
Inventor: MURATA KUNIAKI C O K K HONDA G
IPC: F02D11/10
Filed: 1993-12-20
Abstract: An apparatus for controlling a DC motor (1) connected to an intake throttle valve (7) in an internal combustion engine to detect an actual opening degree (DEGTH) of the intake throttle valve (7) and to match the actual opening degree (DEGTH) with a command opening degree (THP). The apparatus includes a feedback loop (FBL) for defining a feedback signal indicative of a command to converge the actual opening degree (DEGTH) of the control member to the command opening degree (THP) by reception of the command opening degree (THP) delivered by a command opening degree generating means and the actual opening degree (DEGTH) delivered by an actual opening degree detecting means, a combined-signal generating means for combining the feedback signal defined by the feedback loop (FBL) with the command opening degree (THP) delivered by the command opening degree generating means, and a motor driving means (MD) for driving the DC motor (1) in response to an output from the combined-signal generating means. Thus, it is possible to converge the actual opening degree (DEGTH) of the intake throttle valve (7) to the command opening degree (THP) with a good responsiveness and a good positioning accuracy.
Patent EP-0643503-A2 (EP)
Inventor: KIVETT JAMES A
IPC: G01S19/48
Filed: 1994-08-18
Abstract: A communication network (50) and method employing chained sequences of communications devices (52, 54, 56, 58), to support synchronized relaying of data, thus forming duplex data buses (60). These data buses support both synchronous virtual circuits and a form of synchronized interrogate-respond data transfer. Off-bus communications devices (164) are permitted to synchronously respond onto the bus without time contention.