baber/WOPTO huggingface dataset:
Patent EP-0354669-A2 (EP)
Inventor: TADAHIRO OHMI
IPC: H01L21/306
Filed: 1989-07-18
Abstract: There is provided according to the invention a dry-etching apparatus composed of any of metal, silica, ceramic or combination thereof comprising a processing chamber (3) in which substrates are placed and a diluted anhydrous hydrogen fluoride gas generator (1), the processing chamber (3) being connected to the diluted anhydrous hydrogen fluoride gas generator (1) through a pipe line of such metal as stainless steel or nickel. There is also provided according to the invention a dry-­etching method with the dry-etching apparatus, and a diluted anhydrous hydrogen gas generator (1) used in the dry-etching apparatus and dry-etching method.
Patent EP-0363019-A2 (EP)
Inventor: IVERSEN BJORN FRANC
IPC: A61F2/36
Filed: 1989-09-08
Abstract: There are described prosthetic components especially : a head (1) which generally takes the form of a segment of a sphere, there being provided an elongate recess (5) for receiving the proximal end of the neck of a prosthetic shaft, the centre line (6) of the recess (5) not passing through the centre of the sphere, to provided eccentricity; a head generally in the form of a segment of a sphere (12), the head being provided with a neck 14 having a recess (17) for receiving the proximal end of a prosthetic shaft, the centre line of the recess (17) not passing through the centre of the sphere, so as to provide eccentricity of the head with respect to the shaft; a head (31) and, integral therewith, an elongate neck (34 ), the head being generally in the form of a segmemt of a sphere and the centre line (38) of the neck where it joins the head not passing through the centre of the sphere to provide eccentricity. There prosthetic heads reduce the likelihood of dislocation when fitted correctly. There is also described a positioning head which enables the correct positioning of the eccentric heads.
Patent EP-0364223-A2 (EP)
Inventor: KYLE ROBERT JOSEPH
IPC: F16F15/167
Filed: 1989-10-11
Abstract: A clutch plate assembly (24) for a vehicle driveline includes a spring damping mechanism disposed in parallel with a viscous shear damper mechanism (30) for damping spring recoil. The spring damping mechanism includes a set of pairs of relatively high rate helical compression springs (34,36) for transmitting torque and attenuating torsionals when a transmission input shaft (22) is connected to a load and a set of relatively low rate helical compression springs (38) connected in series with the high rate springs (34,36) for attenuating torsionals when the shaft (22) is not connected to a load. The viscous damper mechanism includes an annular housing (48) having first and second radially extending sidewalls (52,54) defining a compartment (48a) having a is clutch assembly (50) disposed therein for viscous clutching coaction via a viscous shear oil. An inner member (58) of the clutch assembly (50) includes a dynamic seal assembly (66 or 72) molded integral therewith for sealing the inner extent of the compartment (48a). The inner extent of the housing includes a plurality of fasteners (56e) structurally interconnecting the inner extent of the sidewalls (52,54) to prevent relative axial movement of the sidewalls due to centrifugal effects. The housing sidewalls (52,54), and the clutch and seal assemblies are formed to facilitate a method for readily assembling and accurately filling the damper with viscous shear oil.
Patent EP-0365368-A2 (EP)
Inventor: NAGAHAMA TOSHIYA SAN-CORPO
IPC: G11B7/135
Filed: 1989-10-23
Abstract: In an optical pickup device in which a main beam and a pair of sub-beams are used and a diffraction device (3,13) is disposed between a recording medium (6) and a light-receiving device (7,27) such as a photodetector, the diffraction device (3) comprises first, second and third diffraction regions (3a, 3b, 3c). The second and third regions (3b, 3c) receive light beams from the recording medium (6) which are substantially identical in amount to each other. The light-receiving device (7) comprises first, second, third and fourth light-receiving regions (7a,7b,7e,7f). The first and second light-receiving regions (7a,7b) are juxtaposed, and separated by a line (A o ). The main beam which has been diffracted by the first diffraction region (3a) is focused (P₁) onto said line (A o ). The main beam which has been diffracted by the second diffraction region (3b) is focused (P₂) onto the first light-­receiving region (7a). The main beam which has been diffracted by the third diffraction region (3c) is focused (P₃) onto the second light-receiving region (7b). The sub-beams which have been diffracted by the diffraction device (3) are focused onto the third and fourth light-receiving regions (7e, 7f) respectively. 
     Alternatively, the diffraction device (13) comprises an area (13e) where one or more diffraction regions (13a,13b) are formed. The farthest point of the area (13e) at the side thereof towards the light-­receiving device (27) is spaced from the optical axis (C) by a predetermined distance (L), to prevent the first-order diffracted beam from entering the optical system (4,5) disposed between the diffraction device (13) and the recording medium (6).
Patent EP-0341154-A2 (EP)
Inventor: GESSON JEAN-PIERRE
IPC: C07D317/24
Filed: 1989-05-03
Abstract: The present invention relates to new L-Fucose analogs, their method of preparation, the application of such analogs to the preparation of new glycals, anthracyclines obtained by using such glycals and utilization of such anthracyclines as drugs. The glycals are obtained from L-Fucose and/or its analogs having the formula (1') and have the formula (2), wherein R is an optionally substituted linear or branched alkyl group or an optionally substituted aryl group, whith the exception of a CH2OR group or a CH2OR3 group, R3 having the same meaning as R.
Patent EP-0379820-A2 (EP)
Title: Apparatus for dissolving ozone in a fluid
Inventor: DUGUET JEAN-PIERRE
IPC: C02F1/78
Filed: 1989-12-20
Abstract: Apparatus for dissolving ozone in a fluid such as water, with a view to its treatment by the ozone, by injecting into this fluid ozonated air or an ozonated gas, comprising at least one pipe (2) arranged vertically in a vertical tubular enclosure (1) and communicating with this enclosure at its lower end (3) and, at its upper end, with means (5, 6) for delivering the fluid to be treated and ozonated air or ozonated gas, the said vertical tubular enclosure is closed at its two ends and provided with means for the removal of the treated fluid and air or gas with excess ozone, characterised in that it is provided with means intended for the injection of hydrogen peroxide, so as to complete the oxidation reaction by a radical route. 
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Patent EP-0327530-A2 (EP)
Inventor: KERN OSWALD
IPC: B26D1/00
Filed: 1989-01-30
Abstract: Cutting rule for working sheet materials, consisting of a ribbon-shaped support part having a cutting edge and a coating, a one- or multi-layered coat of hard material being applied to the surface in the cutting-edge region of a cutting rule composed of low alloy, non-stainless steel.
Patent EP-0379149-A2 (EP)
Inventor: VAN DER WAL HANNO R
IPC: C08G18/42
Filed: 1990-01-16
Abstract: The present invention concerns a thermoplastic polyurethane material which is the reaction product of (1) a mixture of (a) 0.86 to 0.98 mole equivalent of a polyester diol having the molecular weight of from 650 to 5,000 and (b) 0.02 to 0.14 mole equivalent of a polyether diol having the molecular weight of from 2,000 to 5,000, and (2) a difunctional chain extender with (3) an organic diisocyanate. These polyurethane materials exhibit high resistance to severe abrasion forces while retaining desirable mechanical properties and are useful for the manufacture of shoe soles, ski boots, ski bindings, conveyor belts and screens used by mining industry and the like.
Patent EP-0385083-A2 (EP)
Inventor: BABUKA ROBERT
IPC: H01R12/89
Filed: 1990-01-20
Abstract: An electrical connector (10) for providing electrical connection to a substrate (19) having contact elements (17) thereon (e.g., a printed circuit board) wherein torsional contacts (13) are utilized. The contacts (13), actuated by a vertically moving, slidable member (41) (e.g., a cam plate) and horizontally moving actuator (51) (e.g., a linear cam), resume a normal, twisted configuration to effect such connection with the respective contact elements (17). Each contact, preferably metallic (e.g., beryllium copper), includes a curvilinear edge segment (35) while each contact element (17) (e.g., plated copper wire) in turn includes a curvilinear contacting surface (105), these two members thus providing a single point form of contact while assuring effective wiping motion to remove undesirable contaminants, debris, etc. which may be located thereon. Relatively high contact forces (e.g., 1.4GPa (200,000 PSI)) are possible using the invention.
Patent EP-0381071-A2 (EP)
Inventor: EKLUND ROBERT H
IPC: H01L21/8249
Filed: 1990-01-26
Abstract: A bipolar transistor and method of making the same is disclosed. The transistor has an emitter region (89) which is diffused from polysilicon (69e) into the intrinsic base region (61), where the polysilicon (69e) is doped with two dopant species of different diffusivity. The impurity concentration of the higher diffusivity species, for example phosphorous, can be selected to define the emitter junction depth, which is preferably shallow, while the impurity concentration of the lower diffusivity species, for example arsenic, can be selected to provide a high conductivity emitter electrode (69e), as well as reduce the sensitivity of the emitter electrode (69e) to counterdoping from the implantation of the extrinsic base region (86). The structure is compatible with BiCMOS processing, as the same anneal can be used to diffuse the emitter (89) and the source/drains (74, 84) of the MOS transistors, with the emitter junction depth optimized via the implant conditions of the higher diffusivity species. The emitter electrode (69e) according to the invention can also be exposed to the opposite conductivity type source/drain implant, with reduced sensitivity to counterdoping.
Patent EP-0381120-A2 (EP)
Inventor: WALLER WILLIAM KENNETH
IPC: H03K19/00
Filed: 1990-01-29
Abstract: An ECL input buffer is particularly well-­suited for use with logic arrays where a large amount of current must be sunk by the row line, for example, when vertical fuse devices are used in an AND array. The input buffer provides means for pulling down the row line such that the entire amount of current sunk by the input buffer from the row line need not pass through a current source, thereby minimizing current consumption of the input buffer. A pull down current source is used which causes a pull down transistor to turn on, thereby pulling down the row line while requiring only the base current of the pull down transistor to be consumed by the current source. A pull up device is utilized and means are included for insuring that the pull up and pull down devices are not both turned on simultane­ously, thereby preventing a current spike through the pull up and pull down means.
Patent EP-0393603-A2 (EP)
Inventor: ZEISSIG ROLF
IPC: F24F13/15
Filed: 1990-04-18
Abstract: Closing apparatus for a ventilation duct or the like. It has at least one closing member which can be adjusted by means of an electrically operable adjusting device. The adjusting device has an electrically heatable wire made of a memory-alloy. This wire is a straight wire, which always remains straight and can, by shortening of its length, adjust the at least one closing member out of one of its limit positions into its other limit position, the wire constantly being kept so strongly tensioned by the return spring that, on return from a shorter end shape into the longer end shape, it assumes its original length again. <IMAGE>
Patent EP-0423455-A2 (EP)
Inventor: SMITH CHRISTOPHER A
IPC: H03K17/795
Filed: 1990-08-14
Abstract: The SCR gate driver circuit provides a continuous gate current whenever there is sufficient anode-to-cathode voltage difference across the SCR. This approach herein eliminates the need to monitor and reapply SCR gate current after each commutation due to load current distortions. A self-powered SCR gate drive circuit for driving an SCR device, connected between a voltage source (VA) and a load. A current regulating means (Q2, Q3, Q4) is coupled between the anode and the cathode of said SCR, having an input terminal and has a current output terminal connected to the gate of said SCR, for providing gate drive current (IG) to said SCR in response to a signal at said input terminal. A photo transistor (IC1b) is coupled between said input terminal of said regulator and said voltage source, having a switchable light source (IC1a) proximate thereto connected to an input control signal source (VC), for providing an energizing signal to said regulator in response to a signal from said control signal source. Said regulator and said photo transistor powered by said voltage source.
Patent EP-0429787-A2 (EP)
Inventor: ITO YOSHIAKI C O MITSUBISHI DE
IPC: G06F13/42
Filed: 1990-09-18
Abstract: A data transfer apparatus wherein a signal for permitting or inhibiting transmission of data is outputted from a master microprocessor to a slave microprocessor, and upon simultaneous generation of outgoing data in both microprocessors, even if the master microprocessor is placed in a reception ready state, the slave microprocessor recognizes it as a transmission request signal unless receiving a transmission permit signal, so that the slave microprocessor is set in a data reception ready state instead of transmitting the data. Therefore, data transmission from the master microprocessor alone is performed in such a case to consequently prevent collision of the respective data on a bidirectional data bus.
Patent EP-0420199-A2 (EP)
Inventor: YONEKAWA TAKASHI
IPC: B60G17/016
Filed: 1990-09-26
Abstract: In a vehicle suspension system, the fluid pressure type actuators provided between a vehicle body and wheels are so controlled that a ratio of the load to be born by the front wheels to the load to be born by the rear wheels determined based upon the rate of change of lateral acceleration is modified to be increased along with increase of vehicle speed, and in case of the four wheel steering, the roll stiffness in the rear wheels is decreased along with increase of vehicle speed, both for the purpose of improving the stability in steering at high vehicle speed while ensuring the high steerability at low vehicle speed. The roll stiffness in the rear wheels may also be modified to be higher in a transitional state than in a constant state in a turning.
Patent EP-0450150-A2 (EP)
Inventor: BOELLET HERRMANN
IPC: H01M50/50
Filed: 1990-11-06
Abstract: In a new connection device for rechargeable batteries, which operate using air-operated electrolyte circulation pumps, the plug connector part is formed by mechanical connection of corresponding parts of an air coupling and of an electrical coupling, and the mating socket connector part is likewise formed by mechanical connection of the corresponding socket connector parts of the individual couplings, so that the air supply to the battery is produced at the same time as the current connection by plugging the two connector parts together. The adaptation of an air plug connector (4) having air connection elements 1 to an electrical standard plug connector (17) (front view), which deviates from commercially available battery plug connectors, makes possible a base plate (6), on whose one side the air plug connector is mounted, holes in the air plug connector holding guide pins (7) on the base plate and attachment screws (13) (sectional view). <IMAGE>
Patent EP-0445423-A2 (EP)
Inventor: LEUNG TAT
IPC: G01N33/576
Filed: 1990-12-22
Abstract: The present invention provides an improved assay for detecting the presence of an antibody to an HCV antigen in a sample by contacting the sample with polypeptide containing at least one epitope of an HCV antigen. Preferred assay formats include a confirmatory assay, a combination assay, a synthetic polypeptide-based assay, an immunodot assay, and a competition assay.
Patent EP-0381261-A2 (EP)
Inventor: DONKER CORNELIS BERNARD
IPC: C11D3/37
Filed: 1990-01-22
Abstract: A non-aqueous liquid detergent comprises a liquid phase which preferably includes a nonionic surfactant and a dispersed particulate phase which includes a carbonate, or mixed carbonate/bicarbonate builder and a carboxylic acid polymer, such as a maleic/acrylic copolymer, as a calcium carbonate crystal growth inhibitor. The compositions exhibit good physical stability and performance. Other ingredients such as an oxygen bleach system and lipase enzymes may also be present.
Patent EP-0400759-A2 (EP)
Inventor: FOLKERS JAN J
IPC: E01C19/40
Filed: 1990-05-31
Abstract: A process for producing a concrete floor, which comprises pouring a concrete mixture over a prepared surface. According to the invention the concrete mixture supplied is transferred into at least one reservoir (2) of a distributing vehicle (1) and the distributing vehicle (1) is traveled over the prepared surface. The concrete mixture is then discharged from the reservoir (2) and poured, in the direction of travel, behind the reservoir (2) and distributed in a transverse direction (11). The invention also provides a distributing vehicle (1) for carrying out the process defined, said vehicle (1) being provided with a reservoir (2), a shoot communicating therewith at the back part via an opening (4) for transversely distributing the concrete mixture, and at least three wheels (5) with low pressure tyres.
Patent EP-0410546-A2 (EP)
Inventor: WONG PUI KWAN
IPC: C08F297/04
Filed: 1990-07-27
Abstract: An elastomeric polymer containing pending 2-oxazo­linyl groups. And a process for preparing the elasto­meric polymer, which comprises contacting an elasto­meric polymer having at least one pendant carboxylic acid group with an ethanolamine.
Patent EP-0378396-A2 (EP)
Inventor: ADNEY BILLY RAY
IPC: G01F1/78
Filed: 1990-01-10
Abstract: This invention relates to a method and apparatus for a liquid mass non-venting flowmeter which allows use with toxic and corrosive materials. A substantially vertical container ("reference container") is provided in direct open fluid communication with a conduit carrying a liquid whose flow is to be measured. The container is filled from a supply 1 through valve 4, 5 against a minimum positive displacement pressure maintained by regulator 24, and a change in mass of liquid in the container is monitored, using a differential pressure transducer FT. A correction factor may be obtained and the flow adjusted to a target rate based on said correction factor by controller 21/22/23.
Patent EP-0389265-A2 (EP)
Inventor: TYPPO PEKKA MATTI
IPC: G01B5/00
Filed: 1990-03-21
Abstract: A caliper gauge for relatively thin moving sheet material (10) is provided by the use of an outer ring type air bearing (17a,17b), flexibly supported, which is flexibly connected again to an inner air bearing (23a,23b) carrying the magnetic measuring components. The outer air bearing (17a,17b) (with its juxtaposed mate) tends to flatten the sheet (10) so that minimum movement is required of the independently actuated inner air bearing (23a,23b). Thus, great accuracy is achieved and tearing or marking of the sheet material (10), such as super calendered or coated grades of paper, is avoided.
Patent EP-0456929-A2 (EP)
Inventor: ODATE RYOJI
IPC: C08L67/00
Filed: 1990-05-29
Abstract: The present invention discloses a semitransparent resin container having pearl gray glossiness made of thermoplastic resins prepared by adding 0.01 to 0.9 weight/percent of polymethy pentene to 99.99 weight/percent of polyester resins and further said thermoplastic resins are subjected to biaxial orientation blow molding after molding of preformation. Thus, pearl gray glossiness of a container can be improved and further the strength of said container can also be improved.
Patent EP-0412663-A2 (EP)
Inventor: GOLLAN ARYE Z
IPC: B01D53/22
Filed: 1990-07-13
Abstract: Membrane-based gas separation apparatus (10) includes a membrane separation device having a feed inlet (22) and outlet (30) and a permeant outlet (26), a motor (12), and at least two pump heads (18,20) driven by the motor. One pump head (18) is connected to supply a feed gas to the feed inlet (22) and the other pump head (20) is connected to pull a vacuum at the permeant outlet (26).
Patent EP-0412733-A2 (EP)
Inventor: DAVIS JOHN S
IPC: B60Q1/26
Filed: 1990-08-03
Abstract: A light bar (20) for mounting on an emergency vehicle to provide warning light signals, comprising at least two vertically spaced lighting layers, each layer having at least one light source, the light sources on each layer cooperating to provide a transient high intensity warning light signal 360° around the light bar. The light bar (20) may include oscillating light sources. A casing (152) encloses the light sources, and a divider (210) separates the light sources of at least two of the layers (28,30) and divides the casing into at least two vertically spaced layers. The divider (210) includes means for permitting air convection between the layers while blocking direct light transmission from the light sources on one layer to the other layer. The casing (152) comprises upper and lower shell members (154,156) which interfit to horizontally compress a gasket to seal the casing without screws or other fasteners penetrating the shells. The light bar (20) preferably includes a hollow tube extending substantially the length of the light bar (20), for mounting the light sources. The tube may be formed by upper and lower channel shaped members. A plurality of stationary lights can be incorporated into one of the layers of the light bar (20), and electronically controlled to provide traffic directing signals.
Patent EP-0412747-A2 (EP)
Inventor: HOLLAND G NEIL
IPC: G01R33/48
Filed: 1990-08-06
Abstract: A magnetic resonance imaging system includes one or more digital transmitters (B), one or more digital receivers (C), and digital data processing circuitry (D) which are all clocked and controlled by a single clock (F). Each digital transmitter includes a numerically controlled modulated oscillator (20) which processes digital phase and frequency signals to produce an output which addresses a wave-form map stored in a PROM (22). Each wave-form output of the PROM is multiplied (24) by a digital amplitude profile signal to generate phase, frequency, and amplitude modulated digital RF signals. A clock gate (30) controls clocking of the digital modulation to create RF pulses. A digital-to-analog converter (28) converts the digital information to an analog RF pulse which is applied to a subject in an image region. The receivers each include an analog-to-digital converter (60) which digitizes the magnetic resonance signal emanating from the subject in the image region with four fold oversampling. A pair of FIR filters (62a, 62b) multiply the digital resonance signal by digital sine and cosine filter coefficients to create in-phase and out-of-phase digital magnetic resonance signal components. After additional digital filtering (64a, 64b), the digital in-phase and quadrature components are Fourier transformed (70) and accumulated in an image memory (72) to form an image representation.