baber/WOPTO huggingface dataset:
Patent EP-0328360-A2 (EP)
Inventor: LAGERGREN PETER J
IPC: G01S7/524
Filed: 1989-02-08
Abstract: An interface circuit for use in connecting a high frequency piezoelectric transducer to an input stage of an echo ranging system is described. The circuit includes first (Q1), second (Q2) and third control transistors (Q3) which are selectively switched by a state controller (18) to control the operation of the circuit. The first transistor (Q1) is controlled to generate a coherent acoustical pulse at a first predetermined time. The second transistor (Q2) is controlled to damp the transducer output at a second predetermined time following the first predetermined time. The third transistor (Q3) serves to clamp the input stage of the echo ranging system to ground until the pulse signal has been effectively transmitted. This operation insures the transducer is in a condition to immediately receive an echo pulse despite the proximity of the transducer to the target whose range is being measured.
Patent EP-0339878-A2 (EP)
Inventor: CAMPBELL JACK BEUFORD
IPC: C07C211/30
Filed: 1989-04-21
Abstract: Substituted propanamines having anticoagulant or antifungal activity are disclosed. Also disclosed are methods of use involving the substituted propan­amines as well as pharmaceutical compositions containing them.
Patent EP-0343895-A2 (EP)
Inventor: LANGERAK ROBERT WILLIAM
IPC: B01D63/06
Filed: 1989-05-22
Abstract: A tubular membrane module for use in ultrafiltra­tion or microfiltration has a bundle of membrane tubes that extend between inlet and return headers. The inlet header is fixed to one end of a tubular housing having a permeate outlet while the return header is free to float longitudi­nally of the housing to accomodate dimensional changes in the tubes with respect to the housing. The tubes are sealed at their ends in sockets in respective potting collars but are mechanically secured and sealed to the headers. The sockets are undercut to protect the membranes from stripping due to fluid shear.
Patent EP-0350211-A2 (EP)
Inventor: GUTHIKONDA RAVINDRA N
IPC: A61K31/4433
Filed: 1989-06-29
Abstract: New antibacterial 6-amido-1-methylcarba­penems and process for their synthesis involving new azetidinone intermediates.
Patent EP-0353054-A2 (EP)
Inventor: AKIBA SHIGEYUKI
IPC: H01S5/00
Filed: 1989-07-27
Abstract: A quantum well structure comprising a quantum well layer (3,9) of thickness substantially equal to the de Broglie wavelength of electrons and carrier confinement layers (2,4) of an energy gap greater than that of the quantum well layer. A second material (9) of a lattice constant different from that of a first material (3) primarily for the quantum well layer, is disposed in the quantum well layer to provide a phase shift in the period of the crystal lattice of the first material, thereby forming energy levels in the forbidden band of the quantum well layer. A semiconductor device employing such a quantum well structure is so constructed as to utilize its physical phenomenon which is caused by the energy levels in the forbidden band. This allows for ease of fabrication of an intermediate infrared or blue light emitting device.
Patent EP-0360457-A2 (EP)
Inventor: HOSHINO HIROSHI
IPC: G11B7/25
Filed: 1989-09-06
Abstract: A liquid crystal information storage device comprises a recording layer comprising a liquid surface-developed film of a pendant mesogenic group-containing high molecular weight liquid crystal, containing a hydrophilic group. Such high molecular weight liquid crystals include acrylic polymers and polysiloxanes, containing at least one pendant mesogenic group and at least one hydrophilic group, such as -COOH, -OH, -NH 2 , -SH, -SO 3 H, -OS0 3 H, -SO 4 H, OSO 4 H, -CONH 2 , -COCH 3 , -COOCH 3 , -NHCONH 2 , -NHCOCH 3  and -OCOCH=CH 2 . Such high molecular weight liquid crystals can be aligned without defects.
Patent EP-0366482-A2 (EP)
Inventor: MACLACHLAN FREDERICK N C O MIN
IPC: C08J7/04
Filed: 1989-10-27
Abstract: Fluoroaliphaticsulfonamido derivatives of poly(oxyalky­lene) diamines are described which are useful as antistatic agents. For example, they are useful in imparting antistatic characteristics to plastic films and the like for packaging electronic components.
Patent EP-0371788-A2 (EP)
Inventor: KAJIWARA SHINZO
IPC: B60C9/18
Filed: 1989-11-29
Abstract: A pneumatic radial tyre comprising a carcass (6) and a belt (7) comprising belt plies (7A, 7B) composed of steel belt cords (7a) wherein at least two circumferential grooves (G) are constructed in the tread part (2) extending continuously in the direction of the tyres equator (CO) and lateral grooves in some parts defined by dividing the tread part (2) in the axial direction of the tyre into approximately three or four equal areas. (SL, CL, CR, SR). The tyre prevents one side drifting of a car in driving and improves the straight forward driving performance.
Patent EP-0367659-A2 (EP)
Title: Box, especially for the packaging of pastries or cakes, manufactured from a cut-out blank with folding lines
Inventor: ITEY FREDERIC
IPC: B65D5/46
Filed: 1989-10-24
Abstract: a) box, especially for the packaging of pastries or cakes, manufactured from a cut-out blank with folding lines. 
<??>b) box, characterised in that: - each flap (201 - 206; 401 - 404) is formed from a base (201A - 206A; 401A - 404A) and from a tab (201B - 206B; 401B - 404B), - each base (201A - 206A; 401A - 404A) is edged over at least some of its length and on at least one of its sides with a stiffening strip (201E, 201F - 206E, 206F, 401E - 404F) connected to the base by means of a folding line, and the matching stiffening strips of two adjacent flaps meet at a folding line (300, 501, 502, 503, 504), and when the flaps are raised the two stiffening strips project into the volume of the box and bring together the folding lines so as to form a ridge between the two flaps. 
<??>c) The invention relates to cardboard boxes. 
<IMAGE>
Patent EP-0381212-A2 (EP)
Inventor: ICHIKAWA ATSUSHI
IPC: G11B7/09
Filed: 1990-02-01
Abstract: An electrostatic-type multidimensional actuator drive by making use of an electrostatic force has a fixed electrode assembly (12) having in combination with driving electrodes (12a, 12c) extending in a direction of the Y axis othogonal to the Y axis and associated driving elec­trodes (12b, 12d) extending in a direction of the Y axis. These driving electrodes of the fixed electrode assembly (12) are secured on a fixture holder, and a movable elec­trode body (11a) is provided extending opposite to and spaced at a short distance from the fixed electrode assem­bly (12) on the fixture holder. The driving electrodes extending in the X and Y directions mounted on the fixed electrode assembly are respectively dislocated in the Y and X directions with respect to the associated X-direc­tional and Y-directional electrodes on a movable holder to form a movable driving electrode body.
Patent EP-0391041-A2 (EP)
Inventor: GIELOW ROBERT L
IPC: B01D46/12
Filed: 1990-02-13
Abstract: The filter of the present invention continually provides the passenger compartment of a vehicle with a supply of purified air, even in the most severe environmental conditions. The filter comprises an inlet surface (12), an outlet surface (14), walls (30) which define a plurality of passages which extend from the inlet surface (12) to the outlet surface (14), and a filtration means for removing the impurities from the fluid. The filter preferably can be subdivided into a plurality of layers (20), including an inlet layer (12), an intermediate layer (22), an outlet layer (14). Each layer includes a plurality of cells, the cells having walls with a generally curvilinear shape. A plurality of the passages are preferably in fluid communication with a plurality of other passages. Surface filtration is used to remove the impurities from the fluid flowing through the passages. The impurities are retained within the filtration means which are disposed on the walls, as the fluid flows through the passages essentially unrestricted even when the removing means is saturated with impurities.
Patent EP-0398048-A2 (EP)
Inventor: MIYAMOTO JUNICHI C O INTELLECT
IPC: G11C16/06
Filed: 1990-04-25
Abstract: Bipolar transistors (22-1, 22-2, ...) are used to select memory cells (MC11, MC12, ...) of single-bit line output type. Bit lines (BL1, BL2, ...) are connected to the emitters of the selecting bipolar transistors (22-1, 22-2, ...), respectively. The collectors of the select­ing bipolar transistors are connected to one another, thus forming a node. A potential (Vba) which is higher than the ground potential (Vss) and lower than a power-­supply potential (Vcc) is applied to the gate of any one of the bipolar transistors (22-1, 22-2, ...) which has been selected. This potential (Vba) determines the max­imum voltage of the bit lines (BL1, BL2, ...). A current-sensing amplifier (28) amplifies the difference between a reference potential and the potential of the collector node of the bipolar transistors (22-1, 22-2, ...), thus generating two output signals (Vout1, Vout2). A sense amplifier (33) converts these output signals into a signal at a CMOS logic level, whereby the data stored in a selected memory cell (MC11, MC12, ...) is read out. The selected bit line (BL1, BL2, ...) is charged with a current flowing from the sense-current amplifier circuit (28) through the collector-emitter path and base-emitter path of the selecting bipolar transistor (22-1, 22-2, ...).
Patent EP-0409047-A2 (EP)
Inventor: LIPPERTS JOSEPH
IPC: H01H33/66
Filed: 1990-07-10
Abstract: In a method of manufacturing a vacuum interrupter chamber, two solders of different melting temperature are used, the closure solder melting at higher temperatures forming degasification gaps. The manufacture, i.e. the soldering of all the parts and the closure of the chamber, takes place in a single furnace cycle. In order to avoid a separate furnace cycle in the manufacture and in order to be able to continue to use the relatively cost-effective joining solders (connecting solders) particularly when using high-grade steel and titanium parts, at least for the interrupter chamber cover, the invention provides for the degasification of these metal parts to be integrated into the soldering process, the degasification annealing being carried out for at least 10 minutes at at least 860 DEG C, during which the relatively cost-effective joining solders, containing silver, are in the liquid state. <IMAGE>
Patent EP-0433542-A2 (EP)
Inventor: ESAKI LEO
IPC: H01S5/34
Filed: 1990-07-26
Abstract: The present invention is directed to novel optoelectronic devices, such as light emitters and detectors, that have a unique combination of semiconductor materials that provides a band arrangement resulting in improved efficiency of carrier injection. The devices are quantum well type devices in which discrete electronic states are formed by size quantization effects in the quantum well region. Electromagnetic radiation of emission and absorption occurs by the transition of electrons from a first energy state to a second energy state in either the conduction band or the valence band of the quantum well layer (12). The bands edges of the layers are offset such that under an appropriate bias, the discrete energy states reside in the bandgap of one of the electrodes (14) and in an allowed region of the other electrode (16), with one state residing in the conduction band of one electrode and the other state residing in the valence band of the other electrode. The wavelength of the emitted or detected light is inversely proportional to the energy difference between the first and second states. Wavelength customization is facilitated by techniques for adjusting the energy difference.
Patent EP-0414160-A2 (EP)
Inventor: HEINEMEYER BEN WILLIAM
IPC: C08G59/06
Filed: 1990-08-18
Abstract: Advanced resin compositions are prepared from a compound having an average of more than one vicinal epoxide group per molecule and an epoxide equivalent weight of from 170 to 200 and a compound having an average of more than one aromatic hydroxyl group per molecule wherein the resultant advanced resin has an epoxide or aromatic hydroxyl equivalent weight of from 200 to 50,000.
Patent EP-0415405-A2 (EP)
Inventor: TAJIMA JOHJI C O NEC CORPORATI
IPC: G01S7/491
Filed: 1990-08-30
Abstract: For obtaining distance information between an image pickup device (10) and an object (11) illuminated by a monochromatic beam selected by a diffraction grating (18) from an optical beam generated by an optical beam generator (27), a distance information obtaining device comprises an activating device (33) for simultaneously activating the beam generator and the image pickup device a predetermined time duration so that the optical beam generator generates an optical beam while activated and that the image pickup device picks up an optical image of the object to produce a picture signal while activated. A processing unit (21) processes the picture signal into a processed signal representative of the distance information. The optical beam may have an intensity which is higher than that of environment light of the object. The predetermined time duration may be an instantaneous time duration. The beam generator may generate a flash light as the optical beam. Alternatively, the beam generator may comprise a light source for generating a white light as the optical beam and a light source shutter for supplying the white light to the diffraction grating only when the light source shutter is activated. As a further alternative, the image pickup device may comprise a television camera and a pickup shutter for supplying the optical image of the object to the camera only when the pickup shutter is activated.
Patent EP-0415414-A2 (EP)
Inventor: KONDOH MASAHIKO C O FUJI PHOTO
IPC: G03B42/04
Filed: 1990-08-30
Abstract: A film storage device for storing films fed by a feed system in a magazine includes a pressing mechanism, angularly displaced with respect to a direction in which a film is fed, for pressing the film into the magazine, a film feeder coupled to the pressing mechanism and angularly mova­ble for forcibly delivering the film into the magazine along the direction, and a drive mechanism for moving the pressing means into the magazine. The film storage device also has a system for storing and displaying the number of films stored in the magazine, and also for detecting a mismatch between the types of the cassette and the magazine.
Patent EP-0420210-A2 (EP)
Inventor: SHIBANO NOBUO
IPC: H01L33/00
Filed: 1990-09-26
Abstract: An inoperable-state detecting circuit for use in a large display apparatus includes a digital lighting signal supplying circuit for sequentially supplying a digital lamp lighting signal to a plurality of lamps to sequentially turn on the lamps. Upon reception, from each lamp, of a lamp-check return signal indicating if this lamp is properly lit, a counter (21) counts by one and outputs a count value. A comparator (23) compares the count value of the counter (21) with a reference value and outputs a comparison result when supplying of the lamp lighting signal from the digital lighting signal supplying circuit is completed. A discrimination circuit (24, 27) is provided in the display apparatus, and digitally determines whether or not at least one of the lamps is inoperable based on the comparison result from the comparator (23).
Patent EP-0430177-A2 (EP)
Inventor: KATAOKA HIDEAKI C O FUJI PHOTO
IPC: G03B17/30
Filed: 1990-11-27
Abstract: A self-advancing film cassette (8) is provided with an auxiliary rotation transmittance structure for reliably transmitting rotation of a spool (8) to the inner convolutions of a roll of film in order to prevent reverse rotation of the film caused by loosening of the inner convolutions of the roll of film or inferior bending rigidity. In a preferred embodiment of the present invention, a step portion for pushing the bending line (17b) of a film trailer (17a) is formed on a slit (35) permitting the end of the film trailer to be inserted therein. In another preferred embodiment, a spool is provided with a resilient member or a flap (20a,21a) member for urging the inner convolutions of the roll of film toward its outer convolutions. The film trailer is increased in bending rigidity by applying embossing treatment or by attaching a skirt thereto.
Patent EP-0442056-A2 (EP)
Title: Lichtwellenleiter-Steckverbindung
Inventor: KRAUSSE PETER
IPC: G02B6/36
Filed: 1990-11-28
Abstract: Bei einer Lichtwellenleiter-Steckverbindung für den Gestelleinbau ist ein Stecker (3) axial starr und der Gegenstecker (4) axial gefedert. Die Zentrierhülse (6) für beide Stecker befindet sich in einer Fassung in der Einsatzrückwand und der axial gefederte Gegenstecker im Einschub. Beide Steckelemente sind auf einer Mischleiste (1) (DIN 41612) befestigt. <IMAGE>
Patent EP-0398411-A2 (EP)
Inventor: NORTON IAN TIMOTHY
IPC: C09K23/30
Filed: 1990-05-04
Abstract: The present invention is concerned with a process for preparing a dispersion comprising a continuous fat phase and a dispersed gelled aqueous phase, wherein a water-­continuous composition, containing at least 1% gelatin by weight of water, is cooled from above the gel setting temperature of the water-continuous composition to below said gel setting temperature and subjected to such conditions of shear that the water-continuous composition is converted into small gelled aqueous beads, after which a fat-continuous dispersion is formed while maintaining the temperature at below the gel melting temperature. 
     The process according to the invention offers the advantage that it enables the preparation of water-in-­oil dispersions of extremely low fat content even when using aqueous phase compositions which in the ungelled state do not possess a high viscosity. Also the present process makes it possible to incorporate ingredients into the aqueous phase which, in the absence of a gelled structure, would promote and actually induce the formation of an oil-in-water dispersion. 
     Another aspect of the present invention is a dispersion comprising less than 23% by weight of a continuous fat phase and a dispersed gelled aqueous phase containing gelatin at a concentration of 1 to 7 times its critical concentration and optionally a combination of one or more gelling agents other than gelatin at a concentration below their critical concentration.
Patent EP-0391515-A2 (EP)
Inventor: KAUFMAN LEON
IPC: G01R33/58
Filed: 1990-01-19
Abstract: Static B o  field strength is measured during each TR interval of an MRI sequence providing field calibration data used to compensate for rapid variations in B o  during the MRI sequence.
Patent EP-0399839-A2 (EP)
Inventor: CHAN MING FAI
IPC: A61P27/02
Filed: 1990-05-25
Abstract: The invention provides ophthalmic compositions for reducing ocular hypertension comprising an ophthalmically acceptable excipient and at least one compound of the formula:
       
 wherein the dotted lines represent a single bond, or a double bond in the cis or trans configuration; A is OH or a pharmaceutically acceptable salt thereof or OR₅; R₁ and R₂ combined are -OH/-OH, =O/-OH, or -OH/=O; R₃ is an acyclic hydrocarbon, saturated or unsaturated, having from 1 to 20 carbon atoms, or R₃ is -(CH₂) n R₄ where n is 0-10; R₄ is an aliphatic ring from 3 to 7 carbon atoms or an aromatic or heteroaromatic ring; and R₅ is an aliphatic radical of from 1 to 10 carbon atoms. 
     Also provided are novel 15-acyl prostaglandins and a process for the preparation of 15-acyl prostaglandins.
Patent EP-0405819-A2 (EP)
Inventor: VAN NIEKERK GERHARD ALBERTUS
IPC: A46B1/00
Filed: 1990-06-19
Abstract: A broom (10) is disclosed comprising an elongated head (12) having an upper surface and a lower surface, a socket (14) on the upper surface for attaching the head to a broomstick, and bristles (16) projecting from the lower surface, wherein the head (12), the socket (14) and the bristles (16) are in the form of an integral moulding of a polymeric material and wherein the socket (14) is provided with resiliently flexible retaining means (22) on its inner surface for counteracting the removal of the broomstick from the socket. Some of the bristles (16) may conveniently be of smaller diameter and others may conveniently be of larger diameter. The polymeric compound may comprise rubber and may be pre-formulated such that, upon vulcanization, the sweeping implement has a Shore hardness, as measured on the A scale, of between 35 and 65 and an elongation at break of between 550% and 650%.
Patent EP-0415629-A2 (EP)
Inventor: ENG KAI Y
IPC: H04L12/56
Filed: 1990-08-21
Abstract: This invention is an inventive N input by L output interconnect fabric (109). In operation, packets comprising an information field and an address are received at the N inputs (101-108) to the interconnect fabric, and the address in each packet is mapped to a group of outputs (e.g. 122-125) rather than to any particular output. Each packet is then routed to any available one of the interconnect fabric outputs associated with the group to which the packet is mapped. If a number of packets destined for the same group simultaneously arrive at the interconnect fabric inputs and the group to which they are all destined does not comprise enough outputs to accept them, then all packets in excess of the number that the destined group can accept are simply discarded. The probability of lost packets due to such discarded packets is acceptably small. In one exemplary embodiment, the invention can be utilized to build arbitrarily large packet switches.
Patent EP-0427382-A2 (EP)
Inventor: STEWART MALCOLM JOHN
IPC: G03F7/16
Filed: 1990-08-31
Abstract: Film 10 from a storage roll mounted within a housing 14 is fed by motorised feed rollers 24 to a screen 30 where it is applied to the screen by a pressure roller 26. The hermetically-sealed housing 14 is demountable from a shelf 18 for changing the type of film without having to remove each film roll from its housing. A flying knife 36 cuts the film after application to the screen. The shelf 18, housing 14, feed rollers 24, pressure roller 26 and knife 36 are driven vertically up the screen by drive means to apply the film to the screen. A counterpressure device 34 is driven in unison to support the screen behind the pressure roller. The counterpressure device may be a coating trough, an indented or embossed roller on a spray bar, according to the type of film to be supplied to the screen.
Patent EP-0437085-A2 (EP)
Inventor: FARRAR THOMAS C
IPC: G01N27/64
Filed: 1990-12-21
Abstract: A gaseous sample for mass spectroscopy analysis is introduced into an ion resonance cell (16) within an evacuated chamber (12). An electron beam (32) is passed through the cell to ionize the gas. A magnetic field (B) is applied along a first direction within the cell and a static electric field is applied along a second direction orthogonal to the first direction. The combined action of the magnetic and static electric fields confine the ions and cause them to orbit. An alternating electric field is created within the cell to excite ions having mass-to-charge ratios within a predetermined range. A time domain signal produced by the excited ions is detected and digitized. The digital samples of the time domain electrical signal are transformed into frequency domain data by linear prediction using a linear least-squares procedure. The resultant frequency domain data contains information about the mass of the different types of ions present in the cell and the relative number of each type.