baber/WOPTO huggingface dataset:
Patent EP-0368334-A2 (EP)
Inventor: SATO MITSUO C O INTELLECTUAL P
IPC: H01L21/306
Filed: 1989-11-10
Abstract: A semiconductor substrate etching apparatus is disclosed. In this apparatus, a semiconductor substrate (1) is mounted on the upper surface (19) of a first vacuum chuck (11), an etching solution is supplied to a groove (21a) of a roller (21b) of a semiconductor substrate end surface etching mechanism (21), which covers the end surface of the semiconductor substrate (1), and the first vacuum chuck (11) and the roller (21b) are rotated in the opposite directions. The end surface of the semiconductor substrate (1) is brought into contact with the etching solution. The etching solution is then transferred onto the end surface of the substrate (1), thus performing etching of the end surface.
Patent EP-0379686-A2 (EP)
Inventor: KAWAKAMI SHIN
IPC: H05K3/46
Filed: 1989-12-06
Abstract: A printed circuit board comprising on each surface thereof a heat- and weather-resistant sealing member (3a) filled in a conducting through-hole portion (7), and an electronic wave-­shielding layer (5) via an insulating layer (4), making it possible to obtain an excellent electromagnetic wave-shielding effect.
Patent EP-0373679-A2 (EP)
Inventor: BOONE THOMAS C
IPC: A61K47/04
Filed: 1989-12-18
Abstract: A stable pharmaceutically acceptable formulation containing a pharmaceutically acceptable amount of a protein is disclosed. Also disclosed are associated means and methods for preparing such formulations.
Patent EP-0346996-A2 (EP)
Inventor: RENZI FIORENZO
IPC: C08F2/46
Filed: 1989-06-14
Abstract: Organic glasses and surface coatings are prepared, with short hardening cycles, by submitting to the action of U.V. light a liquid polymerizable composition containing at least one di-(allyl carbonate) or poly-(allyl carbonate) of a diol or polyol, a photoinitiator and a vinyl ester monomer and/or an organic peroxide. 
     The composition can additionally contain small amounts of an organic compound selected from among those compounds which are used in the art in order to stabilize the organic polymers to the degrading action of U.V. light. 
     The composition is preferably heated before being treated with U.V. iight.
Patent EP-0329308-A2 (EP)
Inventor: FABIJANSKI STEVEN F
IPC: C12N15/82
Filed: 1989-02-03
Abstract: A process is described for producing hybrid seed using male-sterile plants created by employing molecular techniques to manipulate antisense DNA and other genes that are capable of controlling the production of fertile pollen in plants. Transformation techniques are used to introduce constructs containing antisense DNA and other genes into plants. Said plants are functionally male-­sterile and are useful for the production of hybrid seed by the crossing of said male-sterile plants with pollen from male-fertile plants. Hybrid seed production is simplified and improved by this invention and can be extended to plant crop species for which commercially acceptable hybrid seed production methods are not currently available.
Patent EP-0335488-A2 (EP)
Inventor: FONTANA ROBERT EDWARD JR
IPC: G11B5/39
Filed: 1989-02-15
Abstract: In a magnetoresistive (MR) read transducer comprising a thin MR film (10) formed of ferromagnetic material and a thin nonmagnetic spacer film layer (14) in contact with the MR film, the spacer film (14) comprises a material selected from the group consisting of nichrome and nichrome with chromium oxide. 
     To make such a transducer, a thin soft magnetic material film is deposited in contact with the spacer film so that a transverse bias is produced in at least a part of the MR film. The resistivity of the spacer film can be chosen by selecting the ratio of nichrome to chromium oxide in the spacer film. 
     In a specific embodiment (Fig. 2) the spacer film (24) extends over only the central region of the MR film (10). Where the MR film consists of a nickel based alloy, a wet chemical etching process using an etchant comprising an aqueous solution of ceric ammonium nitrate and acetic acid can be used to pattern the spacer film.
Patent EP-0335555-A2 (EP)
Inventor: LIDINSKY WILLIAM PAUL
IPC: H04L29/06
Filed: 1989-03-21
Abstract: A high capacity metropolitan area network (MAN) is described. Data traffic from users is connected to data concentrators at the edge of the network, and is transmitted over fiber optic data links to a hub where the data is switched. The hub includes a plurality of data switching modules, each having a control means, and each connected to a distributed control space division switch. Advantageously, the data switching modules, whose inputs are connected to the concentrators, perform all checking and routing functions, while the 1024x1024 maximum size space division switch, whose outputs are connected to the concentrators, provides a large fan-out distribution network for reaching many concentrators from each data switching module. Distributed control of the space division switch permits several million connection and disconnection actions to be performed each second, while the pipelined and parallel operation within the control means permits each of the 256 switching modules to process at least 50,000 transactions per second. The data switching modules chain groups of incoming packets destined for a common outlet of the space division switch so that only one connection in that switch is required for transmitting each group of chained packets from a data switching module to a concentrator. MAN provides security features including a port identification supplied by the data concentrators, and a check that each packet is from an authorized source user, transmitting on a port associated with that user, to an authorized destination user that is in the same group (virtual network) as the source user.
Patent EP-0334614-A2 (EP)
Inventor: BALFOUR DAVID
IPC: G01N27/16
Filed: 1989-03-21
Abstract: A catalytic gas detector for detecting flammable gases comprises a Wheatstone bridge circuit formed on a silicon substrate 10. The silicon substrate is coated with an insulating layer 12 of silicon nitride. 
     The Wheatstone bridge is formed as an electrically conductive track deposited on the layer of silicon nitride. It consists of resistive heating sensing element 24 and compensating element 26 and resistors 34 and 36 connected together by leads 28. 
     The sensing element 24 is formed as a meanandering track of platinum coated with a ceramic substrate 30 bearing catalyst material. The compensating element 26 is similar to the sensing element 24 except that the substrate 32 is inert. 
     An electric current is passed through the bridge circuit to cause the resistive heating elements 24 and 26 to be heated to the operating temperature. 
     When a flammable gas is present, it oxidises exothermically on the catalyst bearing substrate 30 causing the temperature of the sensing element 24 to rise compared with the termperature of the compensating element 26. The temperature difference gives rise to a difference in electrical resistance of the elements 24 and 26 which is detected by the Wheatstone bridge to indicate the presence of the flammable gas. 
     The sensing element 24 and the compensating element 26 are formed on bridge portions 20 and 22 of the nitride layer 12 where some or all of the underlying silicon 10 has been removed. A slot 18 is formed between the bridge portion 20 and 22 to reduce heat loss from the sensing element 24.
Patent EP-0342916-A2 (EP)
Inventor: NISHIDA HIROSHI
IPC: G06Q50/00
Filed: 1989-05-16
Abstract: A data processing apparatus includes a key input device (20), a display device (26), a schedule data memory for storing schedule data attached with a date and a time within the date inputted from the key input device by the day, a time calculator (28) for calculating a present date and time based on a date and time initially set, an alarm setting device for setting a requisition of alarm in a schedule data of a desired date and time included in the schedule data stored in the schedule data memory (31), a comparator for comparing the present date and time outputted from the time calculator (28) with the date and time attached to the schedule data set with the requisition of the alarm by the alarm setting device and a display controller for simultaneously displaying the schedule data set with the requisition of the alarm and other schedule data being adjacent to said schedule data when the result of the comparison by the comparator is conformable.
Patent EP-0353053-A2 (EP)
Inventor: MIKAMI KOICHI - KOMINATODANCHI
IPC: C07C67/347
Filed: 1989-07-27
Abstract: An olefin (II)
      wherein R 1′  is hydrogen or C1-4 alkyl and R 2′  is C1-4 alkyl, phenyl or cycloalkyl or R 1′  and R 2′  join to complete a 5- to 7 membered cyclo­alkyl or bicycloalkyl ring which may be substituted with C1-4 alkyl, and a glyoxolate (III) CHO-COOR³ where R³ is C1-4 alkyl, are added to a solution in an organic solvent of a binaphthol-titanium complex
      wherein X is a chlorine or bromine atom, 
as catalyst in amount of 0.02 to 1 mole per mole of the glyoxolate, and reaction takes place at -50°C to 0°C over 10 to 20 hours; an alkali is added and from the reaction mixture there is recovered by solvent extraction an alpha-­hydroxycarboxylate of formula
      in a yield of 70-90%. 
     The products are of high optical purity and can be obtained in a desired configuration. 
     The catalyst is prepared by mixing in hexane a titanium tetrahalide and titanium tetraisopropoxide and reacting the product in toluene with binaphthol.
Patent EP-0360577-A2 (EP)
Inventor: HAMADA SHUN-ICHI C O MITSUI PE
IPC: B32B27/32
Filed: 1989-09-20
Abstract: In accordance with the present invention, there are provided processes for preparing thermoplastic elastomer laminates, which comprise a step of obtaining a laminated sheet by placing a thermoplastic elastomer unexpanded sheet containing a polyolefin resin, an ethylene/α-olefin copolymer rubber and a foaming agent onto the back of a thermoplastic elastomer sheet containing a polyolefin resin and an ethylene/α-olefin copolymer rubber, and heat fusion bonding both sheets to each other, and a step of obtaining a thermoplastic elastomer laminate having a foamed layer by heating said laminated sheet to expand the thermoplastic elastomer unexpanded sheet layer thereof.
Patent EP-0378899-A2 (EP)
Inventor: HETHERINGTON ALAN
IPC: G06F9/44
Filed: 1989-10-20
Abstract: An Operating Environment at a level of software between the operating system level and the applications program level controls a user's interface with one or more concurrently executing applications programs. By forming a common data structure, the Operating Environment allows functions within the various applications programs to execute independently of the nature of the particular user interface. The common data structure, part of an aggregate applications program, arranges data so as to be concurrently accessible to the functions originating in the various applications programs. Conversely, the user interface remains substantially of the same charac­ter, regardless of the particular nature of the applications programs. Independence of the applications programs from par­ticular input and output devices and batch data devices and formats is also enabled. High-level Batch Data System software modules are flexibly interconnectible with low-level, device-specific, format-specific modules. The flexible interconnectibility shields the user from the specifics of data storage formats, and easily accommodates new formats without changing high-level software. The Operating Environ­ment supports means for defining and using a sophisticated family of macros, flexible display and data modification capabilities in either a text or a video simulation mode, and a flexible and useful system of formulas for defining object fields.
Patent EP-0385170-A2 (EP)
Inventor: MIEHE FRIEDRICH-VIKTOR
IPC: G03C5/08
Filed: 1990-02-12
Abstract: Zur Unterscheidung von Originaldrucken von Kopien wird ein Verfahren vorgeschlagen, bei dem dem Druckmedium Substanzen zugefügt werden, die für das Auge nicht sichtbare Markierungen erzeugen, welche nur durch spezielle Lesegeräte erkennbar sind.
Patent EP-0385225-A2 (EP)
Inventor: BUSSE GERD
IPC: H05K1/03
Filed: 1990-02-20
Abstract: The amino resin solutions have an electrical conductivity of < 100  mu S/cm and are obtainable by
 A) methylolation of melamine using aqueous formaldehyde in a molar ratio of from 1 : 2 to 5 in the presence of a tertiary organic amine at a pH of from 7 to 12,
 B) etherification using a molar excess, based on the methylol groups, of a C1- to C4-alcohol in the presence of an optionally substituted organic dicarboxylic acid and/or polycarboxylic acid at a pH from 4 to 4.5,
 C) neutralisation of the reaction mixture using an inorganic base and removal of the volatile constituents by distillation to a water content of < 6 % by weight, based on the reaction mixture, and
 D) addition of a C1- to C4-alcohol to give a solids content, based on the amino resin solutions, of from 40 to 90 % by weight, and removal of insoluble constituents by filtration. 
<??>The amino resin solutions are used for impregnating paper.
Patent EP-0421056-A2 (EP)
Inventor: KRAUS WILLIBALD
IPC: F16B21/08
Filed: 1990-06-05
Abstract: Die Erfindung bezieht sich auf ein Halteelement (1) aus Kunststoff zur Befestigung innerhalb einer Trägeröffnung, mit einem Grundkörper (2) und zwei daran angeordneten, einander gegenüberliegenden, sich durch die Trägeröffnung erstreckenden, im spitzen Winkel zueinanderstehenden Federfingern (3,4), welche im montierten Zustand die Trägeröffnungen hintergreifen, wobei der Grundkörper (2) und die Federfinger (3,4) jeweils einen etwa dreieckförmigen Zwischenraum (5,6) begrenzen. Die Federfinger sind an Ihrem Außenumfang mit Freiarbeitungen (7,8) versehen.
Patent EP-0405421-A2 (EP)
Inventor: OOHATA NOBUTAKA
IPC: C07C323/25
Filed: 1990-06-26
Abstract: A compound of the formula:
      wherein 
R¹ is hydrogen, hydroxy or acyloxy, 
R² is hydrogen or acyl, 
R³ is acyl, 
R⁴ is hydrogen or acyl, 
R⁵ is hydrogen or acyl, 
R⁶ is hydrogen or acyl, and 
R⁷ is hydrogen or acyl, 
and pharmaceutically acceptable salt thereof, processes for the preparation and pharmaceutical compositions comprising them as an active ingredient in association with a pharmaceutically acceptabel, substantially non-toxic carrier or excipient. The invention also comprises biologically pure cultures of the microorganisms  Streptomyces  sp. No. 89009 (FERM BP-2475) and  Pseudomonas cepacia  No. 97 (FERM BP-2945).
Patent EP-0411665-A2 (EP)
Inventor: HARADA YOSHIHITO C O CANON KAB
IPC: G03B17/20
Filed: 1990-08-03
Abstract: In a superimposing display device that superimposes indicators upon the image seen in the viewfinder are provided a display means that displays multiple displays in fields superimposed upon said image of said viewfinder, a detection means that detects the brightness intensity of said fields, and a control means that controls the brightness of said displays, said control means controlliong the brightness intensity information concerning a field obtained by the detection means. The superimpose indicators are displayed at several locations and by application of both a phased constant drive and brightness modulation, thereby enabling to display superimposed indicators with a wide dynamic range capable of keeping track of an object possessing a brightness pattern.
Patent EP-0418568-A2 (EP)
Inventor: KISHITA HIROFUMI
IPC: B01J31/02
Filed: 1990-08-20
Abstract: Fluorinated cyclic organic silicon compounds of the general formula:
      wherein R¹, R², R³, R⁴, and R⁵ are independently selected from alkyl groups having 1 to 6 carbon atoms and n is an integer of from 1 to 6 are novel and susceptible to ring-­opening polymerization to form chain siloxane polymers having improved properties. The cyclic compounds are produced by reacting disiloxane diols with fluorinated organic silicon compounds in the presence of amine catalysts.
Patent EP-0427950-A2 (EP)
Inventor: TAKAHASHI GENSHO
IPC: G03F7/027
Filed: 1990-10-04
Abstract: A photosensitive resin composition for use in forming a relief structure, which comprises, in specific propor­tions, a liquid photosensitive resin component comprising a urethane prepolymer and an addition-polymerizable ethyleni­cally unsaturated monomer; a photopolymerization initiator; a thermal polymerization inhibitor; and a specific unsatu­rated amine compound. The photosensitive resin composition exhibits excellent performances such that it does not suffer from the tunnel phenomenon which is frequently observed in relief formation with respect to conventional photosensitive resin compositions, so that a photoresin relief structure made therefrom not only is characterized with a tunnel-free structure and excellent mechanical properties, but also exhibits excellent performances.
Patent EP-0447617-A2 (EP)
Inventor: TANIGUCHI SHOJI C O TOKOROZAWA
IPC: G11B11/10
Filed: 1990-11-06
Abstract: An optical magnetic recording system has a magnetic head (16) for generating a magnetic field on a magneto-optical disk (15), and an optical head provided for irradiating a laser beam. A magnet (21) is attached to the magnetic head (16) for producing a magnetic force so as to cancel a leakage magnetic force which affects recording of information.
Patent EP-0433661-A2 (EP)
Inventor: GSELL THOMAS CHARLES
IPC: D06M101/22
Filed: 1990-11-15
Abstract: A filter medium is provided comprising a fi­brous matrix to whose surfaces is grafted a super­strate comprising a polymer with quaternary ammonium groups and made from an ethylenically unsaturated monomer containing a quaternary ammonium or amino group, the filter medium having a positive zeta potential at pH 7 and preferably an enhanced Latex Adsorption Capacity together with low extractables and quick rinse-up.
Patent EP-0433820-A2 (EP)
Inventor: RAGANITSCH JOSEF
IPC: G03F1/54
Filed: 1990-12-08
Abstract: The invention relates to a printing process which is characterised in that … …  - a master is scanned by a scanner capable of half tones, …  - the scanner signal controls a laser beam which is guided across a photosensitive layer so as to follow with the master and produce a latent image of the master, …  - before impinging on the photosensitive layer, the laser beam is passed through a diffusion film, and …  - the film exposed in this way is developed and fixed in a conventional manner, and is transferred in a conventional manner to a print carrier such as an offset plate, a screen printing gauze etc. … …<IMAGE>…
Patent EP-0378387-A2 (EP)
Inventor: HIRASAWA SHINICHI
IPC: B41J2/21
Filed: 1990-01-10
Abstract: An ink jet recording method by an ink jet recording head of an on-demand type. Ink droplets are discharged at an interval which is 1/N (N is a natural number of 2 or more) of a pitch of a recording unit.
Patent EP-0385733-A2 (EP)
Inventor: SEIDO NOBUO
IPC: C07C67/31
Filed: 1990-02-27
Abstract: An optically active 6-t-butoxy-3,5-dihydroxyhexanoic ester represented by the formula:
      wherein t-Bu represents a t-butyl group; and R represents a (C1-4) alkyl group, 
is prepared by asymmetrically hydrogenating a 4-t-butoxy­acetoacetic ester in an alcohol as solvent in the presence of a ruthenium-optically active tertiary phosphine complex of specified formula to obtain an optically active 4-t-­butoxy-3-hydroxy-butanoic ester, reacting the ester in an alcohol as solvent with a lithium enolate of an acetic ester to obtain an optically active 6-t-butoxy-5-hydroxy-­3-oxohexanoic ester, and asymmetrically hydrogenating the resulting ester in the presence of a diruthenium-tetrachloro optically active phosphine complex of specified formula as a catalyst. 
     The desired product can be obtained in good yield at high stereoselectivity and is useful as a precursor of a lactone moiety of compactin, mevinolin or analogues there­of.
Patent EP-0398499-A2 (EP)
Inventor: BETTESWORTH NICOLA JEANNE
IPC: C07D249/12
Filed: 1990-04-12
Abstract: A phenyl substituted heterocyclic compound of formula (I) :
      wherein R¹ is optionally substituted pyridone, thiopyridone, pyrimidinthione, pyrimidinone, pyrazole, imidazole or triazole group; R² is hydrogen, halogen, haloalkyl, nitro or cyano; R³ and R⁵ are independently selected from hydrogen, halogen, alkyl or cycloalkyl; R⁴ is halogen, haloalkyl, haloalkoxy or S(O) n R⁶ where R⁶ is alkyl, haloalkyl or cycloalkyl and n is 0, 1 or 2; having insecticidal activity.
Patent EP-0404318-A2 (EP)
Inventor: COLLINS JOHN
IPC: E02D17/08
Filed: 1990-05-03
Abstract: A modified "Acme" type of male and female thread combination has a single-start male thread (10) of machined steel and a single-start female thread (12) of cast nodular graphite iron. The crown (20) of the female thread (12) is machined but the flanks (22, 22) and root (24) are left un-machined. There is plenty of clearance left between the crown (14) of the male thread (10) and the root (24) of the female thread (12). This reduces cost and yet the screw threads are adequate for use in a trench-box strut. The feed per revolution is 20 mm.
Patent EP-0398767-A2 (EP)
Inventor: OKADA KAZUO
IPC: A63F9/00
Filed: 1985-10-31
Abstract: A slot machine adapted to aware prizes when prize-­winning combinations occur on prize-winning lines, in which five series (66-70) of symbols displayable in sequence in which at least 52 different cards of a deck of playing cards are included. The machine includes means to prevent duplication of cards between the symbols in any stopped display, e.g. by detecting that such a duplication is to occur and moving one of the reels to a different position.
Patent EP-0425287-A2 (EP)
Inventor: TSUSHIMA HIROSHI
IPC: G03C1/73
Filed: 1990-10-25
Abstract: The present invention provides a new process for recording an image by using the above mentioned phenomenon. The process comprises (i) inserting an anisotropic molecular oriented film between two polarizing film of which polarization directions are parallel or perpendicular to each other, so that the anisotropy of said anisotropic molecular oriented film forms an angle of 45 ° to the polarization directions of said polarizing film, and (ii) completely or incompletely degrading the anisotropy of an image portion in said anisotropic molecular oriented film.
Patent EP-0427447-A2 (EP)
IPC: G10H1/36
Filed: 1990-10-31
Abstract: The device generates an audio signal from a sound source (4) using a MIDI signal. The music data consists of many pieces of music stored in a memory device like a database in an on-line host computer or an external magneto-optical disc (2). The music generation processing operations are carried out by 2 microprocessors (21,22), each assigned a different set of functions to speed up the overall processing. The receipt and transfer of data to the sound source (4) from the sequencer (3) is carried out in parallel. The data is subsequently output in parallel and the contents of the buffer are monitored constantly to prevent overflow malfunctions. Clock time is divided to enable the generation of trigger signals to control tempo. By variation of the timing of tee trigger signals in accordance with tempo data taken from the data stream, the tempo can be varied while reducing the reproduction time processing load.
Patent EP-0409776-A2 (EP)
Inventor: HOLUB JOHN M
IPC: G01N35/04
Filed: 1990-07-06
Abstract: A data collection and sample handling apparatus (15) having a frame (17) which supports a tray for holding a plurality of test containers. The tray has a plurality of through holes (22) and each test container (27) is mateable within a corresponding through hole (22). At least one detector assembly (31) is used to detect data from the contents or sample contained within each test container (27). Each detector assembly (31) is supported by the frame (17). The tray (21) is positioned on a top of the frame (17) such that at least one test container (27) is exposed to each detector assembly (31) while at least one other test container (27) is isolated from the detector assembly (31). A drive mechanism (50) automatically moves the tray (21) with respect to the detector assemblies (31). The drive mechanism (50) is also used to position each test container (27) within a corresponding detector assembly (31).