baber/WOPTO huggingface dataset:
Patent EP-0391056-A3 (EP)
Title: Dielectrically isolated semiconductor device and method
IPC: H01L29/732
Filed: 1990-02-22
Abstract: Improved dielectrically isolated semiconductor structures 
especially suited for very high frequency bipolar transistors 
are produced by etching recesses (14) in a (e.g.,N⁺) single 
crystal semiconductor wafer (12), coating with a dielectric 
(21) and a thick polycrystalline semiconductor layer (24) to 
provide a support, and back lapping to expose dielectrically 
isolated N⁺ islands (22′) located between the original 
recesses (14). Depressions (55) are etched in the N⁺ islands 
(22′) filled with a more lightly doped (e.g., N⁻) 
semiconductor (62). The structure is then planarized (e.g., 
by lapping and etching) to give isolated single crystal 
islands having a surrounding N⁺ periphery (58, 59) and an N⁻ 
central epi region (62′) of well controlled thickness and a 
smooth outer surface (67) suitable for device formation. 
Bipolar transistors of excellent properties are formed by 
providing a nested base and emitter within the central region. 
The surrounding N⁺ periphery (58, 59) automatically provides a 
buried layer (58) and buried layer contact (59).
Patent EP-0387698-A3 (EP)
Title: Thermal printer particularly for labels
IPC: B41J17/08
Filed: 1990-03-08
Abstract: A thermal printer, particularly for labels, of the type using a 
continuous band of heat-sensitive material (19) to print on a paper 
web (5), the band of heat-sensitive material (19) and the paper web 
(5) being made to pass between a thermal head (10) and a print roller 
(9), and being driven by separate motors, so that feeding of the band 
of heat-sensitive material (19) can be stopped at the end of each 
printing phase, means being provided to move the head (10) away from 
the roller (9) each time the band of heat-sensitive material (19) is 
stopped.
Patent EP-0391147-A3 (EP)
IPC: C08F2/16
Filed: 1990-03-22
Abstract: 2.1 Radikalisch polymerisierbare Rückstände in wäßrigen 
Systemen mußten bisher durch Lösungsmittelzusatz 
und Verbrennung in Gegenwart des wäßrigen Mediums 
entsorgt werden. Das neue Verfahren soll einen ge­
ringen energetischen und apparativen Aufwand er­
fordern und deren quantitative Entfernung ermöglichen.  
         2.2 Aus wäßrigen Systemen werden ungesättigte , 
radikalisch polymerisierbare Verbindungen 
durch Redoxpolymerisation entsorgt. Die ungesättigten 
Verbindungen werden in hochmolekulare Produkte über­
geführt, die leicht abgetrennt werden können.  
         2.3 Beseitigung von radikalisch polymerisierbaren Be­
schichtungsmittelabfällen.
Patent EP-0392366-A3 (EP)
IPC: B60C9/00
Filed: 1990-04-05
Abstract: A steel cord for reinforcing rubber. It is made of 
three steel filaments all having different diameters from 
one another. The small-diameter and medium-diameter ones of 
the three filaments have internal stresses adapted to be 
released when the cord is cut at both ends thereof. Owing 
to these stresses, the diameter of the cord is adapted to 
increase after it is cut at both ends. At the same time, 
the medium-diameter and small-diameter filaments retract 
inwardly from the ends of the large-diameter and medium-­
diameter ones, respectively.
Patent EP-0393719-A3 (EP)
Title: Signal reproducing apparatus for optical recording and reproducing equipment and method for the same
IPC: G11B7/13
Filed: 1990-04-23
Abstract: The apparatus and method is used for recording optical 
information on an optical disk and reproducing the optical 
information therefrom by the use of an optical beam. The 
system is especially adapted to eliminate crosstalk from 
nearby tracks even when the position of the beam spot 
fluctuates with respect to a desired track and even when the 
size of a beam spot incident to the desired track is varied. 
The apparatus particularly comprises a frequency 
characteristic converter which receives output signals from 
a photodetector array (11). The photodetector array (11), 
for example, comprises 3 photodetectors (100, 101, 102) re­
ceiving input beams (130, 131 and 132). The photodetector 
(100) is associated with a desired track for reproducing a 
signal, whereas photodetectors (101, 102) are associated 
with neighbouring tracks for reproducing a replica of cros­
stalk. The frequency characteristic convertor (12) further 
comprises transversal filter means (110, 111, 112), each 
capable of controlling a frequency characteristic, an adder 
(120), a reference signal generator (121), an error detector 
(122), a filter control circuit (123) for controlling the 
filters (110, 111, 112), a timing control circuit (124), a 
decision circuit (125), a switch (126) and an output termi­
nal (133). The output of the photodetector (100) adapted to 
reproduce a signal is fed to the timing control circuit 
(124), which detects the beginning of a preamble signal 
written in the track beforehand and delivers a control si­
gnal to the reference signal generator (121) and switch 
(126). When the timing control circuit (124) detects the end 
of the preamble signal, it delivers a control signal to the 
reference signal generator (121) and switch (126). The cha­
racteristic control for the transversal filters (110, 111, 
 
 
112) is sequentially performed on the basis of the preamble 
signal and the corresponding reference signal and on the ba­
sis of an input signal and an output signal of the decision 
circuit (125).
Patent EP-0399219-A3 (EP)
IPC: B32B5/26
Filed: 1990-04-23
Abstract: The invention relates to a laminate comprising a 
plurality of stacked woven fabric layers and a synthetic 
resin impregnated into the woven fabric layers and 
integrating therewith the layers, said fabric having warp 
yarns (1; 2) and weft yarns (3), the weft yarns (3) 
comprising Z-twist yarns or S-twist yarns, and the warp 
yarns (1; 2) comprising S-twist yarns, or Z-twist yarns 
and S-twist yarns, in a ratio ranging from 1/2 to 1/8 
distributed nearly uniformly depending on number of twist, 
yarn count and thread count (threads/25 mm) of the weft 
yarn (3).  
     Another laminate is also disclosed, comprising a 
plurality of stacked nonwoven fabric layers, woven fabric 
layers stacked on both faces of the nonwoven fabric 
layers, and a synthetic resin impregnated into the 
nonwoven fabric layers and the woven fabric layers and 
integrating with the layers, said woven fabric having warp 
yarns (1; 2) and weft yarns (3), the weft yarns (3) 
comprising Z-twist yarns or S-twist yarns, and the warp 
yarns (1; 2) comprising S-twist yarns and Z-twist yarns, 
or Z-twist yarns and S-twist yarns, in a ratio ranging 
from 1/2 to 1/8 distributed nearly uniformly depending on 
the number of twist, yarn count and thread count 
(threads/25 mm) of the weft yarn ((3).
Patent EP-0378330-A3 (EP)
Title: Servo circuit control system
IPC: G11B7/085
Filed: 1990-01-08
Abstract: A control system of a servo circuit having a speed 
control unit (13) for controlling the speed of a servo 
object (11); a position control unit (14) for controlling 
the position of the servo object (11); a switching unit 
(15) for switching the connections of the servo object 
(11) between the speed control unit (13) and the position 
control unit (14); a main control unit (16); and 
optionally a speed zero detection circuit (39, Figure 
12A) which compares the real speed (Vr) and a slice level 
and detects if the real speed (Vr) is less than a fixed 
value. A method for speed control of such a system 
includes a step of producing a target speed using an 
amount of movement X in an amount of required movement d 
as a remaining amount of movement and a step of 
producing, after producing a target speed for movement by 
the amount of movement X, a target speed of equal speed 
for the remaining amount of movement Y (Fig 3B). A 
method for controlling the switching of the position 
control of the servo circuit in such a system includes a 
step wherein the main processing unit (16) judges if the 
conditions for switching to the position control exist 
during the speed control; a step of monitoring the 
conditions for switching for a fixed time X after 
detection of the existence of the switching conditions; a 
step of switching to the position control in accordance 
with the existence of the switching conditions for the 
fixed time X; and a step of returning the to the step of 
judgement of the switching conditions if they collapse 
within the fixed time. Another method of control in such 
a system comprises producing and outputting a target 
speed using an amount of movement (X) in a total amount 
 
 
of movement (d) as a remaining amount of movement, 
producing and outputting a target speed of an equal speed 
of the remaining amount of movement Y, and switching the 
value of the slice (SLl) level in the speed zero detector 
circuit (39) movement (X) and after the movement (Y).
Patent EP-0390330-A3 (EP)
Title: Method and apparatus for testing the quality of a seal
IPC: G01M3/32
Filed: 1990-02-26
Abstract: Apparatus (100) for testing the quality of a seal on a 
package overwrap comprises a heater tip (114) for burning a 
hole in the overwrap without breaching the integrity of the 
package, means for applying suction to the overwrap; means for 
introducing air through the hole between the overwrap and the 
package; and means for determining whether the rate of air 
leakage from the overwrap is within acceptable limits by 
measuring the back pressure in chamber through which air is 
introduced.
Patent EP-0479463-A3 (EP)
Title: Process for the production of carboxylic acid anhydrides
IPC: C07C51/56
Filed: 1991-09-23
Abstract: The solubility and stability of rhodium catalysts in rhodium-catalysed carbonylation of alkyl esters or alkyl ethers under substantially anhydrous conditions to produce carboxylic acid anhydrides is improved by the use of co-promoters selected from the group:  1,3-dialkyl-4-methylimidazolium iodide;  1,3-dialkyl-4-ethylimidazolium iodide;  1,3-dialkyl-4-n-propylimidazolium iodide;  1,3-dialkyl-4-isopropylimidazolium iodide;  1,3-dialkyl-4-n-butylimidazolium iodide  1,3-dialkyl-4-sec-butylimidazolium iodide  1,3-dialkyl-4-tert-butylimidazolium iodide; 1,3-dialkyl-2,4,5-trimethylimidazolium iodide and mixtures thereof where the alkyl groups are independently C1 to C20 alkyl.
Patent EP-0525278-A3 (EP)
Title: Plastic liner arrangement with lightness control, more particularly for landfills
IPC: B09B1/00
Filed: 1992-02-03
Abstract: In an arrangement of plastic liners (1,2) with leak-tightness control, a control ply (3) of electrically conducting PE-HD is embedded for simple control of whether seepage water is passing into lower layers. Control takes place by registering the electrical conductivity of the conductive PE-HD control ply.
Patent EP-0550396-A3 (EP)
Title: Device for gas analysis
Inventor: ECKERBOM ANDERS
IPC: G01N21/35
Filed: 1992-12-23
Abstract: Described is a device for a gas analysis, for determination of the content of two or more gases in a gas flow, comprising at least one source (3) for emission of two or more ray paths (2) of radiation of a detectible wavelength, a cuvette device having an inlet (18) and an outlet (19) for the gas flow, a filter (23) for transmission of radiation of a characteristic wavelength for the respective gas and a detector device comprising a plurality of detectors (22) for conversion of the radiation into an electrical signal, characterized in, that the cuvette device comprises a block (1) with a number of through-going cuvettes (14) in each of the ray paths, which cuvettes are interconnected by channels (15,16,17) which connect the ends of the cuvettes, to the formation of an unbroken conduit for the gas flow from the inlet to the outlet, and in that a first (12) and a second (13) cuvette window, which cuvette windows are transparent for the radiation to be detected, are arranged to the block over each end of the cuvette device in the ray path from the source, adjacent to which second cuvette window the detectors are arranged. <IMAGE>
Patent EP-0571190-A3 (EP)
Title: Ink compositions for ink jet printing
IPC: C09D11/00
Filed: 1993-05-19
Abstract: Object : To provide an ink which is excellent in obstruction 
characteristic and preservation and stability, and excellent 
in printing density and water resistance.  
       Structure : An ink for ink jet recording which comprises 
a pigment, saccharides and an emulsion having a minimum 
film-forming temperature of 50°C or more, and which contains 
the emulsion and the saccharides in the range of from 1:0.5 
to 1:50.  
       Selected Drawing : None
Patent EP-0576185-A3 (EP)
IPC: G03G21/00
Filed: 1993-06-14
Abstract: A mask is used for mounting a sensitized sheet, such as a printing plate, onto 
the surface of an exposure drum. The mask, acting as an intermediary between the 
exposure drum and the printing plate, is a flexible sheet, with a top and bottom 
surface, that is mounted about the exposure drum. A groove formed within the top 
surface of the flexible sheet is used for securing the printing plate by means of a 
vacuum. A passageway formed within the flexible sheet connects the groove to the 
bottom surface and receives a vacuum from the exposure drum. Plates of different 
sizes are mounted to the exposure drum by interchangeable masks of corresponding 
sizes.
Patent EP-0608908-A3 (EP)
Title: Dense star polymers and a process for producing dense star polymers.
Inventor: TOMALIA DONALD A
IPC: C08G69/48
Filed: 1984-01-05
Abstract: This invention is directed to dense star polymers and to a process for producing dense star polymers. The star polymers of this invention have at least one core branch eminating from a core, each core branch having at least one terminal group provided that (1) the ratio of terminal groups to the core branches is greater than 1 : 1, (2) the density of terminal groups per unit volume in the polymer is at least 1.5 times that of conventional star polymer having similar core and monomeric moieties and a comparable molecular weight and number of core branches, each of such branches of the conventional star polymer bearing only one terminal group and (3) a molecular volume that is no more than 60 percent of the molecular volume of said conventional star polymer. Such star polymers are useful as demulsifiers for oil/water emulsions, wet strength agents in the manufacture of paper and agents for modifying viscosity in aqueous formulations such as paints.
Patent EP-0624834-A3 (EP)
Inventor: BOWLING JOSEPH MICHAEL
IPC: G05B19/416
Filed: 1994-04-25
Abstract: A single cycle positioning system utilizing a three
phase wye connected induction motor (10) includes a
three phase inverter (28) and a microprocessor (20) for
controlling the inverter to generate three phases of
power. Pulse width modulation techniques are utilized
and in response to a start signal the frequency of the
power to the motor is increased up to a running
frequency, and in response to a stop signal the
frequency of the power applied to the motor is decreased
along with a corresponding reduction of the voltage
applied to the motor.
Patent EP-0639880-A3 (EP)
Title: Method for stabilising a network against reactive power oscillations and device for compensating reactive power.
Inventor: AEBISCHER HANSPETER
IPC: H02J3/18
Filed: 1994-07-23
Abstract: During operation, DC arc furnaces (8) generate undesired reactive load fluctuations, which are compensated by means of a reactive power compensator (31). An AC power controller (28) of the reactive power compensator (31) is controlled as a function of a stabilisation striking angle signal ( alpha St), which is controlled by a function generator (26) as a function of a desired reactive power signal (Qsoll8), a reactive power actual value signal (Q8) of the arc furnace (8) and a filter reactive power signal (QF), corresponding to the reactive power of filter branches (4, 4'). The desired reactive power signal (Qsoll8) is formed by means of a phase angle regulator (35) as a function of a total current intensity (i33), which includes not only the actual current value (iist) of the arc furnace (8) but also the current of the filter branches (4, 4') and the current of any auxiliary devices. <IMAGE>
Patent EP-0641856-A3 (EP)
Inventor: KAYAL JOHN J
IPC: C12M3/00
Filed: 1994-08-24
Abstract: A vessel and closure assembly for culturing cells wherein a gas
permeable membrane is provided in the closure to allow rapid and
uniform equilibration of gases between the atmosphere of the vessel and
the atmosphere of the incubator. A plug is provided for occluding
passage of gases through the gas permeable membrane when the vessel
is removed from the controlled atmosphere of the incubator.
Patent EP-0649727-A3 (EP)
Title: Total containment welding of plastic tubes.
Inventor: IVANSONS IVARS V
IPC: B29C65/00
Filed: 1994-10-21
Abstract: A pair of plastic tubes are welded together by mounting each tube in the clamp jaws of a holder. A heated wafer is movably mounted in the gap between the tubes to cause the ends of the tubes to melt. The melted ends of the opposed tubes are pressed into contact with each other to form a welded connection. Each side of the wafer has a scoop to remove excess plastic material at the ends of the tubes to control the size of the weld connection. A pair of structural cam elements is used to create a precise spacing between each set of clamp jaws for guiding the wafer to control the plastic volume of the weld. The resulting weld is independent of rheology of plastic. The same device could also be used for disconnect purposes by cutting through a single tube and forming two tube sections. Unique double jaw construction is also disclosed.
Patent EP-0693803-A3 (EP)
IPC: H01R13/7195
Filed: 1995-06-09
Abstract: An electrical connector (1) has a mating section 
(12) and a mounting surface (14). The mounting surface 
(14) has a device receiving recess (19) therealong 
with a retaining lip (24). Contacts (40) have contact 
terminating sections (44) extending through the recess 
(19) and beyond the mounting surface (14). A device 
(50) is secured in the recess (19) by a combination of 
spring forces of the contacts (40) and the retaining lip 
(24). A method of assembling an electrical connector (1) 
having a device (50) secured in a device receiving recess 
(19) along a mounting surface (14), involves 
first placing the device (50) onto the contact 
terminating sections (44), moving the device (50) above 
and then behind the retaining lip (24) by pushing 
against spring forces of the contacts (40), and then 
lowering the device (50) behind the retaining (24) lip 
and releasing the spring forces.
Patent EP-0730181-A3 (EP)
Title: Verfahren zur Erzeugung des stereoskopischen Bildes eines Objektes sowie Anordnung zur stereoskopischen Betrachtung
Inventor: KNOBLICH JOHANNES
IPC: G02B30/25
Filed: 1996-03-01
Abstract: Verfahren und Anordnung zur Erzeugung des stereoskopischen
Bildes eines Objektes, 
wobei in einem ersten Schritt aus einem das Objekt
beleuchtenden Beleuchtungsstrahlbündel , insbesondere durch
Ausblendung ein erstes Teilstrahlenbündel erzeugt wird, das das
Objekt unter einem ersten Winkel beleuchtet und ein erstes Bild
des Objektes einem Betrachterauge dargeboten wird 
und in einem zweiten Schritt durch Ausblendung mindestens
ein zweites Teilstrahlenbündel erzeugt wird, das das
Objekt unter einem zweiten Winkel beleuchtet und ein zweites
Bild des Objektes dem anderen Betrachterauge dargeboten wird
und erster und zweiter Schritt wechselweise mit einer Frequenz
oberhalb der Flimmerfrequenz des menschlichen Auges wiederholt
werden, indem Mittel zur wechselweisen Erzeugung mindestens
zweier Teilbündel des Beleuchtungsstrahlbündels vorgesehen
sind, die das Objekt über die Beleuchtungsoptik unter
unterschiedlichen Winkeln beleuchten und Mittel zur Zuordnung
der entstehenden Bilder des Objektes abwechselnd zum rechten
und zum linken Auge des Betrachters vorgesehen sind.
Patent EP-0729168-A3 (EP)
Title: Method of manufacturing electron source, electron source manufactured by said method, and image forming apparatus using said electron sources
Inventor: SUZUKI HIDETOSHI
IPC: H01J1/316
Filed: 1994-04-05
Abstract: The method involves: (a) supplying electric power to the wires to form electron-emitting portions of the electron-emitting devices, and (b) controlling the applied power or applied voltage to each of the wires.
Patent EP-0733385-A3 (EP)
Title: Knee-pad for sportsmen
Inventor: GONGEA ADRIAN-MARIUS
IPC: A63B71/12
Filed: 1994-02-25
Abstract: Cushions cover the joint at parts of the thigh and shin at the front and sides, and are secured by parallel straps above and below the knee-joint. Three middle cushions (10-12) bear against each other along horizontal lines, an upper one covering the kneecap and a lower one (12) the shinbone and are of regular hexagonal shape. Honeycomb-type cushions (13,14) are joined to them at the sides, so as to form a triangle whose geometry in relation to the kneecap and shinbone does not essentially alter on bending the knee. The top and bottom cushion areas (4,5) can have lateral cushions (8,13) to protect the epicondylus lateralis and medialis of the os femoris and the condylus lateralis and medialis of the tibia.
Patent EP-0750402-A3 (EP)
Title: Verfahren und Vorrichtung zur Erkennung und zum Ausfiltern eines eine sinusförmige Störung enthaltenden Signals
Inventor: LORITO FABRIZIO
IPC: H04B1/12
Filed: 1996-06-19
Abstract: Verfahren und Vorrichtung zur Erkennung und zum Ausfiltern
eines periodischen Signals (RS), das einen mit
Rechteckwellen modulierten Sinusträger (f1) enthält, dessen
Frequenz die Information darstellt, der ein sinusförmiges
Störsignal überlagert ist. 
Es ist ein aus zwei Bandpassfiltergruppen (G1, G2)
bestehender Satz vorgesehen, der Umschaltmittel (SW1, SW2,
SW3, SW4, SW5) aufweist, um das periodische Signal (RS) in
Abhängigkeit von der Frequenz (fm) des Störsignals und von
der An- bzw. der Abwesenheit einer Umkehrung im
modulierenden Signal durch die Filter zu leiten, sowie
Vergleichsmittel (VL) besitzt, um zu ermitteln, an welchem
Filterausgang die grösste Sinusamplitude anliegt. Die
Erfindung findet bevorzugte Anwendung auf dem Gebiet der 
Eisenbahn-Signalübertragungsanlagen.
Patent EP-0769861-A3 (EP)
Inventor: KOGA TADASHI
IPC: H04B10/294
Filed: 1996-10-17
Abstract: It is the object of the invention to eliminate a limitation
on the transmission distance of a WDM optical transmission system
caused by wavelength dependencies of gains of optical
amplification repeaters. The transmission characteristic of
optical signal of the transmission system against the signal
wavelength can be flatted by using plural kinds of the optical
amplification repeaters with different gain peak wavelengths, and
the longer transmission distance can be obtained.
Patent EP-0781029-A3 (EP)
Inventor: TOMIYORI YUTAKA
IPC: H04M1/60
Filed: 1992-02-19
Abstract: Controlled by a signal level produced by a microphone
(12), a noise suppressing circuit (25) supplies a first attenuator
(16) with a local level which is equal to the signal level and
is suppressed to a predetermined output level when the signal
level is lower and higher than a predetermined input level.
Cooperating with a drive level produced by a second attenuator
(17) to drive a loudspeaker (13), the local level makes a comparator
unit (21-23) produce a control signal for making the first attenuator
give smaller and greater amounts of attenuation to the signal
level with the drive level rendered by the second attenuator
low and high when positive and negative values are had, respectively,
by an input difference equal to the local level less the drive
level. Preferably, the local level is suppressed by a level
difference had by the signal level above the predetermined input
level.