baber/WOPTO huggingface dataset:
Patent EP-0432527-A2 (EP)
Inventor: ABURAKI SHIMPEI
IPC: C07C235/84
Filed: 1990-11-20
Abstract: The present invention concerns neutral sugar derivatives (Formula I) of pradimicins, their use as antifungal agents, methods for their preparation, and intermediates for their synthesis.
      wherein R¹ is selected from the group consisting of H, methyl, and hydroxymethyl, and when R¹ is methyl or hydroxymethyl, the resulting amino acid residue has the  D -configuration; and R² is H or ß- D -xylosyl with the proviso that, when R¹ is methyl, R² is H; or a pharmaceutically acceptable salt thereof.
Patent EP-0430349-A2 (EP)
Inventor: LIGHTSEY JOHN WILLIAM
IPC: C08F236/04
Filed: 1990-11-21
Abstract: An improved continuous process for the production of nitrile butadiene rubber with high bound acrylonitrile is provided wherein incremental amounts of butadiene monomer are continuously added in each of a plurality of reaction vessels to obtain a copolymer having superior environmental resistance and tensile strength properties.
Patent EP-0439854-A2 (EP)
Inventor: KINGHORN JOHN RITCHIE C O P C
IPC: H04N7/088
Filed: 1990-12-18
Abstract: A teletext decoder is provided having a "correct page header received" (CPHR) flip-flop (3) which is set by the page header of a required teletext page and reset by the next following page header, and a "page end" flip-flop (15) for generating a page end output (17) in response to the receipt of the next following page header, a "row received" flip-flop (11) for detecting at least one row of the required teletext page, a gate (14) for inhibiting the generation of an end of page output (21) for a predetermined period, typically corresponding to three field intervals, and an AND gate (18) for further inhibiting the generation of an end of page output (21) if there has been a subsequent detection of a further page header of the required teletext page within said predetermined period.
Patent EP-0390339-A2 (EP)
Inventor: SHENOY ANIL K
IPC: G06F11/36
Filed: 1990-03-01
Abstract: A software engineering tool is disclosed which enables the efficiency and performance of a program design to be evaluated prior to the time the program is written into code. Every possible path that can be followed in the implementation of the program is identified, and its length is measured. From this information, reports are generated which point out the longest paths in the program and sources of potential performance problems. In addition, weights which identity relative complexities or performance timings can be assigned to individual modules in the program, and form the basis of other reports which indicate timing performance. The user is provided with the opportunity to alter the weights assigned to modules, and thereby determine the effect which different weights have on the overall performance of the program.
Patent EP-0399813-A2 (EP)
Inventor: KURIYAMA TORU C O INTELLECTUAL
IPC: F02G1/053
Filed: 1990-05-23
Abstract: A cryogenic refrigerator comprising a closed cylinder (111) provided with an inlet (134) and an outlet (135) for introducing and discharging a coolant gas into and out of the cylinder (111), a displacer (119) slidably housed in the closed cylinder (111) and housing a cooling member (124) therein and having a passage (141) through which the coolant gas flows, a device (142) coaxially arranged in and along the passage (141) of the displacer (119) in which the cooling member (124) is housed to divide the passage (141) into outer and inner ones, a device for reciprocating the displacer (119) in the cylinder (111), and a device for repeating the process of introducing the high pressure coolant gas into the cylinder (111) through the inlet (134) and discharging it out of the cylinder (111), synchronizing with the reciprocating displacer (119).
Patent EP-0399838-A2 (EP)
Inventor: BUXTON HOWARD DEAN
IPC: H01L21/60
Filed: 1990-05-25
Abstract: An improved means and method for bonding closely spaced parallel wires (42) for applications in electronic devices, circuits and assemblies is described herein. A wire guiding means (60,66) is provided located between a bonding wedge (40) and a releasable wire clamp (53) of a conventional wire bonder (30). The wire guide means (60,66) has a slot (68) which constrains motion of the wire (42) during bonding to a plane perpendicular to the plane of the bonding pad (18) and substantially prevents motion of the wire (42) transverse to this perpendicular plane. This prevents the bonding from introducing minute variations in the transverse displacement of the wires (42), such variations being absorbed by small variations (50, 50C) in the wire loop height.
Patent EP-0404554-A2 (EP)
Inventor: JULIER TREVOR LEONARD
IPC: H02J7/00
Filed: 1990-06-20
Abstract: A system for charging of a battery for powering equipment is disclosed in which the duration charging the battery at a boost current rate is controlled in dependence upon the usage of the equipment. During periods of use of the equipment a count is registered corresponding to periods of use for different operations which draw different currents from the battery. The boost charging is controlled in dependence upon the count and the count is decremented as the boost charging takes place.
Patent EP-0409471-A2 (EP)
Inventor: ALLISON J DENNIS
IPC: B28B1/087
Filed: 1990-07-11
Abstract: Apparatus and method for continuously forming concrete blocks or pavers comprises a frame (18) for defining a supporting structure with a mould box flexibly mounted thereon, the mould box having internal cavities contoured to define preselected block patterns, wherein a feed device (12,14) for receiving concrete material is operable for selective positioning over an upper surface of the mould box for investing concrete material into the cavities. First and second sets of vibrators (136,144) are mounted, respectively, generally at opposite ends of the mould box means and are operable for being selectively driven by associated first and second power drives (132,143). The first and second power drives are selectively operable for synchronising or independently actuating the first and second sets of vibrators, respectively, so that concrete material invested into the cavities of the mould box may be vibrated so that the concrete material is evenly distributed in substantially equal masses throughout the cavity in the mould box.
Patent EP-0408378-A2 (EP)
Inventor: NORMAN EDWARD GEORGE
IPC: C08J9/42
Filed: 1990-07-12
Abstract: A hydrophilic, semi-permeable membrane comprises a porous PTFE membrane having the internal and external surfaces of the membrane structure coated by a complex formed by the combination of a hydrophilic polymer which adheres to the membrane structure and a complexing agent, the complex rendering the porous PTFE membrane substantially hydrophilic and protein affinitive. The preferred hydrophilic polymer is polyvinyl alcohol, and the complexing agent is preferably a dibasic inorganic acid, such as boric acid, or a salt thereof. Such hydrophilic, semi-permeable membranes are particularly suitable for protecting the target area of a body fluid diagnostic test strip, and as cell culture support members. Methods of forming the membranes are also described.
Patent EP-0425232-A2 (EP)
Inventor: HOSHINO FUTOSHI
IPC: B41M5/30
Filed: 1990-10-23
Abstract: A thermosensitive recording paper useful for thermosensitive recording comprising a substrate and a thermosensitive recording layer, with an undercoat layer interposed therebetween which contains 10 to 40 parts of a binder and 60 to 90 parts by weight of crosslinked polymer microparticles. The microparticles have a particle diameter of 0.2 to 5.0 µm and a ratio of weight average diameter to number average diameter of 2.0 or less.
Patent EP-0431907-A2 (EP)
Inventor: SHUZUKI SHIGERU
IPC: C08K5/04
Filed: 1990-12-05
Abstract: A rubber-covered roll comprises a metallic core (10) and at least one covering vulcanised rubber layer (11,12). The rubber layer is formed by a rubber composition comprising an ethylenically-unsaturated nitrile-conjugated diene type highly-saturated copolymer rubber having a conjugated diene unit content of the polymer chain of at most 25 wt % and a zinc salt of an ethylenically-unsaturated carboxylic acid. The one or a inner rubber layer is formed by a rubber composition comprising 100 parts by weight of a rubber component containing at least 50 wt % of the highly-saturated copolymer rubber and 10-40 parts by weight of the zinc salt (B). 
     A novel rubber composition comprises 100 parts by weight of a rubber component containing 90-50 wt % of the highly-saturated copolymer rubber and 50-10 wt % of a diene rubber, and 10-40 parts by weight of the zinc salt (B).
Patent EP-0438905-A2 (EP)
Inventor: HUNDT MICHAEL J
IPC: H01L23/495
Filed: 1990-12-21
Abstract: A premolded battery package supports a volatile memory chip and a replaceable backup battery for preserving data in the event of loss of main power supply. The package includes an integrally formed external socket for receiving a replaceable backup battery which can be manually inserted into or removed from the socket after molding encapsulation and metal trim work have been completed. The socket assembly includes an interface battery cavity which permits the negative terminal of a backup battery to engage a negative power finger lead. The positive battery terminal is engaged by a resilient terminal contact portion of a positive finger lead which projects externally of the molded package. The terminal contact portion of the positive power lead serves as a retainer in combination with socket shoulder portions for retaining the backup battery within the socket.
Patent EP-0432042-A2 (EP)
Inventor: YAMAMOTO YUICHI PHARMACEUTICAL
IPC: C07D501/00
Filed: 1990-12-06
Abstract: A new class of cephalosporin derivatives is provided, which is useful as antibacterial agent to be particularly suitable for oral administrations in mammals including man, and which is represented by general formula (I)
     wherein R 1  is a hydrogen atom or a lower alkyl group; R 2  is a hydrogen atom or an ester-forming group capable of being cleaved easily with an esterase existing in the digestive tracts; n is an integer of zero or 1; Z is a saturated heterocyclic group containing one or two oxygen atoms as the hetero-atoms with or without one or more lower alkyl substituents, or a pharmaceutically acceptable salt thereof.
Patent EP-0412923-A2 (EP)
Inventor: ALDRICH CHARLES STANLEY
IPC: G03G15/08
Filed: 1990-06-29
Abstract: A developer apparatus (29) for use in an electrostat­ic reproduction apparatus includes a large reservoir of toner (34, 44). The toner is located in a supply chamber (39) and is metered to a developer roller chamber (35) from which it is carried by a developer roller (31) past a doctor blade (36) to a photoconductor drum (19) for image development. A toner metering roller (41) rotates with the developer roller (31) to provide a continuous supply of toner from the supply chamber (39) to the developer chamber (35). Once an equilibrium level (65) is reached, the toner metering roller (41) acts to remove toner (34) from the developer chamber (35) to the supply chamber (39) to insure proper operation of the developer roller (31).
Patent EP-0445692-A2 (EP)
Inventor: MCNEILL GERALD P
IPC: C11C3/06
Filed: 1991-03-04
Abstract: The invention relates to a method of producing monoglyceride. According to the invention, in a process for the synthesis of monoglyceride from fat and oil by its reaction with glycerol using a lipase enzyme as a catalyst, the reaction is carried out in a liquid-liquid-emulsion state and afterwards in a slurry or solid state.
Patent EP-0445847-A2 (EP)
Inventor: SUH KYUNG W
IPC: C08J9/14
Filed: 1988-04-15
Abstract: A method for producing a thermoplastic polymer extruded foam body having an average cell size of from 0.05 mm to 3.5 mm, a density of from 1.0 lbs/ft 3  (16 kg/m 3 ) to 5.0 lbs/ft 3  (80 kg/cm 3 ), a minimal cross- sectional thickness of 0.5 in (1.3 cm) and a minimal cross-sectional area of 8 in 2  (52 cm 2 ) comprises the steps of: heat plastifying the resin; introducing the plastified resin into a mixing device; introducing a blowing agent into the mixing device; maintaining a pressure in the mixing device at or above a pressure greater than an equilibrium vapor pressure of the blowing agent in the resin and blowing agent mixture; passing the mixture through a cooling device; passing the mixture through a die having a given die pressure greater than atmospheric pressure; maintaining a specific defined minimum critical pressure drop between the pressure at the inlet of the mixing device and the inlet of the die. Blowing agents useful in such process are disclosed as well polymer foam bodies made by the process and consistently having improved uniformity of surface quality.
Patent EP-0468440-A2 (EP)
Title: Organic electroluminescent device with stabilized cathode
Inventor: VAN SLYKE STEVEN ARLAND EASTMA
IPC: H05B33/14
Filed: 1991-07-23
Abstract: An organic electroluminescent device is disclosed which is protected from dark spot formation. The device is comprised of, in sequence, a support, an anode, an organic electroluminescent medium, and a cathode. The cathode contains a plurality of metals, at least one of which is a low work function metal other than an alkali metal. Overlying the cathode is a protective layer comprised of a mixture of at least one organic component of the organic electroluminescent medium and at least one metal having a work function in the range of from 4.0 to 4.5 eV capable of being oxidized in the presence of ambient moisture.
Patent EP-0485772-A2 (EP)
Inventor: GRAENICHER PETER
IPC: G01N33/10
Filed: 1991-10-24
Abstract: The grain size of bulk material, in particular ground material, is determined by means of a flow measurement (DIN 66 126) using a calibration correlation between mean grain size and sample permeability. The mean grain size determined in this way at required intervals for a continuous flow of bulk material can be used to regulate rolling mill parameters. It is also possible to calculate the bulk density so as to be able to regulate a compacting performed after a grinding operation in an appropriate manner.
Patent EP-0490388-A2 (EP)
Inventor: SUGISHIMA EIICHI
IPC: H02M5/458
Filed: 1991-12-12
Abstract: An apparatus and method for detecting a ground fault occurring on an output side of an inverter circuit, which includes a converter circuit for rectifying an alternating current into a direct current, a capacitor (3) for smoothing the direct current, an inverter circuit for converting the smoothed direct current into a predetermined frequency and voltage through the on/off operation of switching elements (4a - 4f) connected in parallel with diodes (5a - 5f), and a PWM signal generator for controlling the on/off of the switching elements (4a - 4f). The ground fault detector includes current detectors for detecting current flowing in the switching elements (4a - 4f), a device (24a - 24f) for detecting an overcurrent flowing from one of the switching elements (4a - 4f) and for outputting an overcurrent signal when the output of any of the current detectors exceeds a predetermined value (22a - 22f), a device for detecting a zero vector signal transmitted by the PWM signal generator, and a ground fault detector circuit (21) for detecting a ground fault condition in accordance with the overcurrent signal and the zero vector detection signal.
Patent EP-0449407-A2 (EP)
Inventor: SPIEGEL EHUD
IPC: G06K15/02
Filed: 1991-02-04
Abstract: A method and apparatus for adapting a digital representation of a first color image for output representation by an output device having spatial and color characteristics are disdosed. The apparatus includes apparatus for modifying the spatial characteristics of the digital representation of the first color image and the color characteristics of the first color image to correspond to the spatial and color characteristics of the output device such that, in an output representation, the color characteristics of the first color image would be substantially preserved. The method includes the step of modifying the spatial characteristics of the digital representation of the first color image and the color characteristics of the first color image to correspond to the spatial and color characteristics of the output device such that, in an output representation, the color characteristics of the first color image would be substantially preserved.
Patent EP-0443860-A2 (EP)
Inventor: SUDO YOSHIHISA
IPC: B01J20/32
Filed: 1991-02-21
Abstract: Packing materials for use in liquid chromatographs are prepared by reacting silica gel or porous glass having silanol groups on the surface thereof with a chemical modifier to chemically attach the chemical modifier to silanol groups on the silica gel or porous glass, and reacting the chemically modified silica gel or porous glass with an end-capping agent in gas phase at 250-500°C to chemically attach the end-capping agent to the residual silanol groups on the silica gel or porous glass.
Patent EP-0446016-A2 (EP)
Inventor: SHIGA MASAKATSU
IPC: B30B1/26
Filed: 1991-03-05
Abstract: A press machine slide stroke adjusting apparatus comprising an eccentric sleeve connected to a slide and fitted over a circular eccentric portion of a crank shaft, first teeth provided on the eccentric sleeve and concentric to the circular eccentric portion. a main gear disposed on the crank shaft in coaxial relationship therewith, and second teeth meshing with the first teeth and provided on the main gear coaxially with the crank shaft. The crank shaft is disconnected and connected from and to the main gear by coupling. A hydraulic actuator disengages the crank shaft from the main gear. The rotation of the crank shaft disconnected from the main gear is prevented by engagement of a pin and an engaging hole in an engaging block. Under such condition, the eccentric sleeve is turned relative to the circular eccentric portion to adjust a vertical stroke of the slide.
Patent EP-0451966-A2 (EP)
Inventor: O'DONNELL MATTHEW NMN
IPC: G06F7/52
Filed: 1991-03-15
Abstract: A method for generating a stream of digital data words, each representing an analog signal amplitude from a beam of vibratory energy received by a plurality N of transducers each associated with one of a like number of separate channels of a phased array (22), uses the steps of: sampling (24), after a delay of a multiple number of cycles (24c) at a fixed frequency F, an analog input signal in each channel at a fixed frequency F for conversion to a digital data word at each sample; then demodulating (26) the digital data word stream in each channel to baseband and reducing the data word rate by a factor D; and phase-rotating (28) the baseband data stream of each channel by a phase difference Φ determined by the focal range R and steering angle to obtain, along both the sampling delay, a different channel time delay t d,j,  for each j-th channel, where 1≦j≦N, necessary to steer and focus the beam to a desired angle/range combination. Apparatus for generating the stream of digital data words is disclosed, and uses a special output-switching section in each channel to allow a pipelined coherent summation to be obtained across the entire phased transducer array.
Patent EP-0455374-A2 (EP)
Inventor: FOSSUM GORDON CLYDE
IPC: G06T15/40
Filed: 1991-04-16
Abstract: A system and method are provided for use in conjunction with a computer graphics system such that a single pass, or set of operations can be used to draw specific polygons contained within an image being displayed. The computer graphics system includes a multiple bit frame buffer (12), a write mask (16) which can disable at least two bits of the frame buffer, a z-buffer (20) capable of being turned off and a color map (10) which is loaded with a background, a visible line and a hidden line color. With the z-buffer turned off, and the first bit plane of the frame buffer enabled and the second bit plane of the frame buffer disabled by the write mask, the hidden line color is selected from color map 10 and draws the polygon being considered with the selected color. The z-buffer is then turned on and with one bit plane disabled and another bit plane enabled by the write mask, the background color is selected from the color map. The polygon interior is then drawn with the background color previously selected, however any pixels corresponding to previously drawn lines will not be painted with the background color because of the disablement of bit plane one. The visible line color is then selected from the color map and the polygon being considered is drawn. With the z-buffer turned on, any visible lines will take precedence over corresponding hidden lines or background colors having corresponding pixels. The next polygon to be considered is drawn using the same steps as previously discussed.
Patent EP-0478157-A2 (EP)
Inventor: LEDERMANN PETER G
IPC: H05K3/34
Filed: 1991-09-02
Abstract: A nozzle assembly for depositing solder onto a series of conductive surfaces such as the mounting pads of a surface mount integrated circuit board includes an upper nozzle mount 15 and a removeable nozzle head 27 which has an interior bore for receiving a portion of the nozzle mount and an elongate heat source 25. The nozzle head also includes an orifice for receiving solid solder 47 fed within the interior bore to contact the elongate heat source. The interior bore terminates in a solder reservoir for molten solder which is fed within the interior bore to contact the elongate heat source. The molten solder is dispensed through a tip opening to deposit uniform amounts of solder on each pad.
Patent EP-0479535-A2 (EP)
Inventor: HOSOYA HIDEKI
IPC: G11B7/007
Filed: 1991-09-30
Abstract: A file managing method is disclosed. In the method, data is sequentially recorded with a predetermined continuous recording unit basis in a data section, and a flag indicative of addition of file data is provided in directories which manage file data. When data is additionally recorded into existing files, the data to be added is sequentially recorded into a data section as another file. The directories to manage the additional file data are recorded into a directory section by incrementing the flag. In the reproducing mode, the files having the same name and different flags are managed as a single file which has been divisionally recorded in accordance with the order of the numbers of the flags. In the recording mode of the additional data, if an invalid data section exists in the last recording information unit of the file into which the data is added, the data recorded in the last recording information unit is stored into a buffer memory and the data to be newly added is additionally sequentially recorded after the stored data. In the reproducing mode, the file other than the file whose flag has the maximum value among the files having the same file name and the different flags are managed as a recording unit region in which the last recording unit region is invalid.