baber/WOPTO huggingface dataset:
Patent CA-2253740-A1 (CA)
Inventor: BEN NUN YEHOSHUA
IPC: A61B18/02
Filed: 1997-05-06
Abstract: Cette invention se rapporte à un système d'extraction chirurgicale de la cataracte (20) d'un oeil (10). Ledit système comporte un cryomanipulateur (50) doté d'un corps (52) et d'une tête (66) à extrémité cryogénique (72) conçue pour saisir à très basse température et manipuler la matière l'oeil. Ledit cryomanipulateur peut également comporter une pointe chirurgicale (70), un dispositif chauffant (74) et un manchon d'irrigation et d'aspiration (54). Ledit système comporte aussi un dispositif d'extraction de la cataracte (CRD) (204) conçu pour briser la cataracte gelée par le cryomanipulateur. Ledit dispositif d'extraction de la cataracte incorpore une unité de perçage (230) dotée d'une lame rotative (246) conçue pour briser la cataracte et un boîtier comportant des conduits (256) d'irrigation et d'aspiration. L'invention se rapporte également à un procédé d'extraction de la cataracte qui consiste à utiliser ledit cryomanipulateur pour saisir à très basse température la cataracte et à la briser, puis à irriguer les fragments de cataracte et à aspirer le fluide d'irrigation ainsi que les fragments de la cataracte au moyen du dispositif d'extraction et/ou du cryomanipulateur.
Patent CA-2253954-A1 (CA)
Inventor: IYER RAJIV
IPC: G02B26/08
Filed: 1998-11-12
Abstract: A 1xn optical deflection switch has an array of k transmissive light deflectors to switch an incident light beam into one of n=2 k directions. The switch can steer the light through the deflectors into one of a plurality of beam directions, by selectively individually inserting them into the light path. One embodiment uses four glass rectangular blocks as light deflectors having parallel upper and lower surfaces oriented at a predetermined oblique angle to the incident light beam. The thicknesses of the blocks follow an increasing order in proportion to successive powers of 2, i.e. t, 2t, 4t and 8t, giving a total of 16 switching positions. Another embodiment uses two arrays of 4-block switches, and selectively activates blocks from either array to provide a 1x32 switch. Yet, another embodiment uses four stepped deflectors each having two selectable sections of dissimilar thicknesses to give a total of 15 switching positions.
Patent CA-2254142-A1 (CA)
Title: Allocation of control channel in packet radio network
Inventor: MUSTAJAERVI JARI
IPC: H04L12/56
Filed: 1998-03-27
Abstract: A method for the allocation of a control channel (PACCH) to mobile stations (MS) in a packet radio system, particularly in a GPRS system. The mobile station (MS) sends a resource allocation request (3-1), to which a network (BSS) responds (3-2) by allocating to the mobile station (MS) a TFI identifier and a USF identifier. The network then sends (3-5) data packets in blocks, at least some of which comprise a polling field (S/P), a polling state ('P') which indicates that the mobile station is to acknowledge received data packets on the control channel (PACCH). To ensure that a mobile station receiving in downlink would not prevent the network from allocating one uplink mobile station to said channel, the allocation of the control channel (PACCH) is, in accordance with the invention, independent of a possible USF identifier. The mobile station acknowledges (3-6) the received data packets after a predetermined time (T) from the downlink block in which said polling field is in the polling state ('P'). The predetermined time (T) can be fixed or it can be indicated in an additional extension field (EF2).
Patent CA-2254314-A1 (CA)
Title: Structural composite material that absorbs radar waves, and uses of such a material
Inventor: ESCARMANT JEAN-FRANCOIS
IPC: H01Q1/42
Filed: 1998-12-10
Abstract: A composite structural material, designed to absorb radar waves at frequencies of 8 - 18, 35 and 94 GHz. The composite structural material consists of at least three layers (3,4,5) of dielectric and nonmagnetic materials - an outer low reflective and low loss layer with an actual dielectric constant of about 3 to promote penetration of incident radar waves, an intermediate layer (4) with a dielectric constant of about 5, and an inner layer (5) filled with electrically conductive particles and having an actual dielectric conductivity of 15-20. The structure has an overall thickness of 4-10 mm, with the outer layer being 1.5-4.0 mm thick, the intermediate one 0.5-2.5 mm and the inner one 1.5-3.5 mm, with conductive particles in the form of carbon grains under 0.1 mm in diameter and in a proportion of less than 10 wt.%. The material is able to withstand a pressure of the order of 1 tonne/cm<2> and has a radar wave attenuation of over 10 dB.
Patent CA-2255778-A1 (CA)
Inventor: BENKOE ZOLTAN L
IPC: C07D231/12
Filed: 1998-03-24
Abstract: La présente invention concerne des composés 1-alkyl-4-benzoyl-5-hydroxy-1H-pyrazole dans lesquels le groupe fonctionnel benzoyle est substitué en position 2 par des groupes tels que halo ou alkyle, en position 4 par un groupe alkylsulfonyle, et en position 3 par un groupe amino dérivatisé cyclique ou acyclique tel que le 1-éthyl-4-(2-chloro-4-méthylsulfonyl-3)-(morpholin-4-yl)benzoyl-5-hydroxy-1H-pyrazole. Les composés ainsi obtenus s'avèrent convenir particulièrement à la lutte contre une variété de dicotylédone et de mauvaise herbe graminée. Ces composés, qui peuvent s'appliquer en traitement de prélevée ou en traitement de postlevée, conviennent à la lutte contre les plantes parasites du maïs, du riz et du blé.
Patent CA-2256663-A1 (CA)
Inventor: MCMAHON MICHAEL
IPC: G01N27/416
Filed: 1998-12-21
Abstract: A hay bale moisture measuring device comprising a bimetalic probe forming a single cell battery uses the hay and the moisture therein as the electrolytes to provide an internal cell resistance measurement which is calculated in an electronic circuit according to a predetermined algorithm into a hay moisture measurement which is further blased for hay temperature, bale configuration, hay type, cutting and density by the same circuit.
Patent CA-2257866-A1 (CA)
Inventor: HOPKINS CHRIS E
IPC: C12Q1/6827
Filed: 1997-06-10
Abstract: A method of detecting a polymorphism at a polymorphic site in the genome of an individual is described. The method involves amplifying a portion of a genomic DNA sample by polymerase chain reaction to produce an amplified segment that contains the polymorphic site, desalting the amplified segment, and determining the mass of the amplified segment by electrospray ionization mass spectrometry. Comparison of the mass of the amplified segment to a reference mass permits detection of the presence or absence of the polymorphism. Methods for heterozygosity and disease inheritance by mass spectrometry are also described. The figure shows the molecular weight transform spectrum obtained from the mass-to-charge spectrum of a 53-base oligonucleotide.
Patent CA-2260087-A1 (CA)
Inventor: MASON JUSTIN L
IPC: E21B43/117
Filed: 1999-01-19
Abstract: An inventive apparatus is disclosed for use in perforating an oil or gas well. The inventive perforating gun assembly comprises at least a first and a second perforating gun module. Each of the modules has a first and a second end. Each perforating gun module comprises a perforating gun section (the perforating gun section consisting of one or more perforating guns connected together), that has a first and a second end, a first pressure test connector operably connected to the first end of the perforating gun section and a second pressure test connector operably attached to the second end of the perforating gun section. When the pressure test connectors are operably attached to each end of the perforating gun section, the pressure test connectors are capable of holding sufficient pressure for pressure testing of the complete perforating gun module. The at least two perforating gun modules are operably connected together to form the gun assembly. Also disclosed is an improved method for creating and using leak-proof perforating gun assemblies in oil or gas wells. The method comprises building the perforating gun modules described above, and pressure testing each of the perforating gun modules. After pressure testing the modules are operably connected with each other to create the gun assembly for running into the wellbore.     The inventive apparatus and method improves leak prevention in perforating gun assemblies, thereby making the assemblies safer to use and operate.
Patent CA-2260863-A1 (CA)
Title: Treatment of psychotic disorders
Inventor: FINK-JENSEN ANDERS
IPC: A61K31/4535
Filed: 1997-07-25
Abstract: The invention relates to the use of tiagabine or a pharmaceutically acceptable salt thereof in the manufacture of a medicament for use in the treatment of psychotic disorders.
Patent CA-2264356-A1 (CA)
Inventor: HAYWARD GEOFFREY
IPC: G02B6/12
Filed: 1999-03-04
Abstract: A signal processing circuit, the signal processing circuit comprising first and second waveguides, a series of successive couplers C i between the first and second waveguides, the couplers being spaced from each other along the first and second waveguides, the first and second waveguides having a delay differential .DELTA.L k between successive couplers Ck-1 and C k, the delay differentials .DELTA.L k not being all the same. The first and second waveguides preferably have delay differentials between successive directional couplers defined by .beta..DELTA.L k = .beta.n k .DELTA.L+.PHI.k where n k is a set of co-prime positive integers, .beta. is defined by .beta.=2.pi.n eff/.lambda., .DELTA.L is defined by .DELTA.L=c/n eff .DELTA.f, c is the speed of light in a vacuum, n eff is the effective refractive index of the conduit, .lambda. is a wavelength selected from a range of carrier wavelengths .lambda.1 .....lambda.NCh for which the add/drop multiplexes is resonant, .PHI.k is a phase parameter between 0 and 2.pi., and .DELTA.f is a pre-selected spectral range of the resonant coupler.
Patent CA-2264930-A1 (CA)
Title: Masque perfore pour afficheur a cristaux liquides de panneau lumineux
Inventor: HEEMBROCK PETER
IPC: G02F1/1333
Filed: 1997-09-05
Abstract: L'invention a trait à un dispositif d'affichage à cristaux liquides pour panneau portant la marque d'une société. Ce dispositif comporte un afficheur à cristaux liquides, un panneau diffuseur pourvu d'un équipement d'éclairage et un panneau réflecteur destiné à renvoyer la lumière en direction de la surface de visualisation de l'afficheur. Un motif à points ou à lignes représentant un symbole social ou une marque de commerce est placé de manière stratégique de façon à indiquer la marque de la société sur l'afficheur lorsque celui-ci fonctionne en mode lumineux.
Patent CA-2266656-A1 (CA)
Inventor: MILICH DAVID R
IPC: C07K14/18
Filed: 1997-09-16
Abstract: La présente invention concerne des procédés de traitement d'infections intracellulaires, qui consistent à administrer une construction de vecteur dirigeant l'expression d'au moins une portion immunogène d'un antigène tiré d'un agent pathogène intracellulaire, et aussi à administrer à l'animal à sang chaud une protéine contenant la portion immunogène de l'antigène, de façon à provoquer une réponse immunitaire.
Patent CA-2268065-A1 (CA)
Title: Map-based navigation system with overlays
Inventor: CURTRIGHT WILLIAM AMES
IPC: G09B29/10
Filed: 1997-10-10
Abstract: A navigation system includes a processor (20) and bit-mapped earth surface map image data in a first data storage device (28) accessed by the processor (20), the processor (20) displaying an image essentially filling a display area of a display screen and centered on any latitude and longitude supplied to the processor (20), the image having no discontinuities. The processor (20) may receive latitude and longitude inputs from a user via a user input device (22), or from a global positioning system (GPS) receiver (26) incorporated in the navigation system. The displayed map image may thus be centered at a desired longitude and latitude or at the longitude and latitude of the navigation system itself. The system may include a second data storage device (34) for storing data from and providing data to the processor (20). Route information such as flight plan data may then be stored in the second data storage device (34). Overlays may be selectably displayed over the bit-mapped map image display, with corresponding features appropriately aligned.
Patent CA-2269178-A1 (CA)
Title: Method and apparatus for determining whether a wireless station is operating within a prescribed geographic region
Inventor: VARVARO CHARLES
IPC: H04W4/00
Filed: 1999-04-15
Abstract: A method and apparatus for determining whether a wireless station is operating within a prescribed geographic location. During an initialization process, the wireless telephone measures propagation delays of pilot signals from nearby base stations and stores the propagation delays in a non-volatile memory of the wireless station. Thereafter, during a check process, the wireless station measures propagation delays of pilot signals from nearby base stations and compares them with the stored propagation delays stored in memory. If the difference between the two sets of propagation delays are within a predetermined tolerance, then a determination is made that the wireless station is operating within the prescribed geographic location.      Multiple sets of propagation delays may be stored in memory such that a determination can be made as to whether the mobile station is operating within any one of a number of prescribed geographic locations.
Patent CA-2269251-A1 (CA)
Title: Dry analytical elements for the determination of protein
Inventor: ARTER THOMAS
IPC: G01N21/78
Filed: 1999-04-16
Abstract: A dry analytical element is disclosed which can be used to sensitively and rapidly detect and quantitate protein. The assays are carried out using a dye that reacts with protein and molybdate ion to produce a measurable change in the spectral absorption of the dye.      Also disclosed are polymers which stabilize and enhance the accuracy of the assay, and compounds which reduce interference by bicarbonate.
Patent CA-2271185-A1 (CA)
Title: Rail vehicle, especially for local traffic
Inventor: AMRATH JOHANNES
IPC: B61F5/02
Filed: 1999-05-06
Abstract: The rail vehicle, especially for a streetcar or metropolitan transit car for local traffic, includes a car body (1) and undercarriage (2) connected with each other by at least one guide rod (3) extending in a longitudinal direction. The connector member (3a) of each guide rod (3) facing the car body (1) and a receptacle (4) for it attached to the car body (1) can be arranged together in the central plane (M) of the undercarriage (2) extending perpendicularly to the vehicle longitudinal axis (L). The connector member (3a) of each guide rod (3) facing the car body (1) can alternatively be spaced a distance (a) from the central plane (M) of the undercarriage (2). In this latter case the car body end of the receptacle (4) is equipped with a connector piece (4a) for spanning this distance (a), which is screwed on the receptacle (4) either in front of or behind the central plane (M) in a direction along the vehicle longitudinal axis (L).
Patent CA-2273377-A1 (CA)
Inventor: SOLLENBERGER NELSON RAY
IPC: H04B7/04
Filed: 1999-05-31
Abstract: A method and apparatus provide channel estimation for multicarrier systems. A minimum mean-square-error (MMSE) channel estimator makes full use of time-and frequency-domain correlations of the frequency response of time- varying dispersive fading channels. A robust channel estimator that is insensitive to the channel statistics is provided. The robust channel estimator can significantly improve the performance of a multicarrier system such as an orthogonal frequency division multiplexing (OFDM) modulation system in a rapid dispersive fading channel. In addition, the estimation process can employ a new reference generator which can select the source of the reference signal as being a decoded or undecoded signal depending on the correction success rate of the decoder.
Patent CA-2273649-A1 (CA)
Inventor: HIROSE MITSURU
IPC: A01K63/00
Filed: 1999-06-04
Abstract: A transparent partition disposed diagonally to the viewing direction gives the impression that multiple species of fish are living together in a single undivided space in a fish tank without giving any eyesore to the viewer.
Patent CA-2274093-A1 (CA)
Inventor: MALONE MICHAEL J
IPC: C07D405/00
Filed: 1997-12-04
Abstract: Selected novel substituted pyrimidinone and pyridone compounds are effective for prophylaxis and treatment of diseases, such as TNF-.alpha., IL-.beta., IL-6 and/or IL-8 mediated diseases, and other maladies, such as pain and diabetes. The invention encompasses novel compounds of the following general formula: (see formula I) analogs, prodrugs and pharmaceutically acceptable salts thereof, pharmaceutical compositions and methods for phrophylaxis and treatment of diseases and other maladies or conditions involving inflammation, pain, diabetes and the like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes.
Patent CA-2276192-A1 (CA)
Title: Isomerization of epoxyalkenes to 2,5-dihydrofurans and catalysts compositions useful therefor
Inventor: MONNIER JOHN ROBERT
IPC: B01J21/08
Filed: 1991-03-07
Abstract: Disclosed are processes for the isomerization of epoxyalkenes to dihydrofurans by contacting an epoxyalkene with a catalyst comprising a quaternary organic onium iodide compounds, optionally deposited on a non-acidic support and/or in combination with a Lewis acid co-catalyst. The catalyst may comprise a supported catalyst, an unsupported catalyst or a solution of the catalytically-active components in an inert, organic solvent.
Patent CA-2278178-A1 (CA)
Title: Practical in vitro sialylation of recombinant glycoproteins
Inventor: BAYER ROBERT J
IPC: C12N15/09
Filed: 1998-01-15
Abstract: This invention provides methods for practical in vitro sialylation of glycoproteins, including recombinantly produced glycoproteins. The methods are useful for large-scale modification of sialylation patterns.
Patent CA-2278688-A1 (CA)
Title: Thermoplastic composite composition reinforced with mica and wooden fiber filler
Inventor: KASAHARA YASUMASA
IPC: C08L97/02
Filed: 1998-01-16
Abstract: A thermoplastic composite composition which can impart a relatively good impact resistance and excellent tensile strength, bending strength, bending modulus, and H.D.T. to moldings while ensuring a good fluidity during molding unattainable by the conventional compositions. This composition comprises mainly mica and a wooden fiber filler incorporated into a thermoplastic. The content of the mica is 10 to 50 parts by weight, that of the wooden fiber filler is 10 to 43 parts by weight, and that of the thermoplastic is 70 to 82 parts by weight.
Patent CA-2281739-A1 (CA)
Title: Lithium secondary battery
Inventor: KUROKAWA TERUHISA
IPC: H01M4/62
Filed: 1999-09-09
Abstract: A lithium secondary battery includes: an internal electrode body including a positive electrode, a negative electrode, and a separator, the positive electrode and the negative electrode being wound or laminated via the separator, and an organic electrolyte. The active material used in the positive electrode satisfies the following relation between the average particle diameter R (µ m) and the specific surface area S (m2/g): 6 ~ RxS ~ 50 The amount of the acetylene black added to the positive electrode active material satisfies the following relation with the specific surface area of the positive electrode active material:      S ~ W ~ S+5 (W ~ 10) (W is the amount of the acetylene black added to the positive electrode active material, expressed in % by weight based on the amount of the active material, and S has the same definition as given above and is expressed in m2/g.) In this lithium secondary battery, the electron conductivity of the positive electrode active material layer is improved, and the internal resistance is reduced, and discharging in large output and large current is possible.
Patent CA-2282934-A1 (CA)
Title: Film comprising one central layer of polyolefin and two outer layers of polyamide/polyolefin alloy
Inventor: ROUMILHAC DIDIER
IPC: C08L77/00
Filed: 1999-09-27
Abstract: Film comprises at least a central layer of polyolefin; and at least two external layers of polyolefin/polyamide alloy with surface tension less than 36 mJ/m<2>. An Independent claim is also included for method for making said film by extruding various layers.
Patent CA-2283079-A1 (CA)
Title: Coated paper for printing and manufacturing method thereof
Inventor: FUJIWARA SEIJI
IPC: B41M5/00
Filed: 1998-10-05
Abstract: A coated paper used for printing and manufacturing method thereof. The coated paper comprises a coating layer mainly composed of a pigment and a binder on a base paper. The coated paper also comprises the drying contractile force R which satisfies such Equation as 0 ~ R ~ 35 gf, when measured pursuant to the following measuring method; A sample coated paper is moisture-adjusted in accordance with JIS P8111. Then, it will be cut into specific dimension along with orthogonally to the cross direction. Next, pass it through Thermo Mechanical Analyzer to obtain R which is measured by predetermined technique. The coated paper will be obtained easily by using a base paper which is coated with PVA having a saponification degree of not less than 85 mol% in an amount of 0.5 ~ 3 g/m2 per side surface after being dried and dried.
Patent CA-2286726-A1 (CA)
Title: Vehicle safety system
Inventor: MEISTER JACK B
IPC: B60R21/26
Filed: 1998-09-16
Abstract: A vehicle passenger safety system as shown in the figure for use where independent power is required. The system includes cooperating elements: an independent source of power (11), a passenger restraining belt (26, 27), crash event sensors (12), belt orientating structure (116), a source of inflating gas (15, 16), and in the preferred embodiment, programmed electronics that control functioning of the safety system and prolong the service life of the independent power source.
Patent CA-2292502-A1 (CA)
Inventor: O'DWYER JAMES MICHAEL
IPC: F42B14/02
Filed: 1998-06-02
Abstract: A method of minimising misfiring or alleviating their consequences is provided by forming at least each trailing projectile (30) in a series of housed projectiles with a sealing portion (34) extending about a tapered anvil portion (31) and moveable therealong for expansion into sealing engagement with the barrel (11). The sealing portion (34) disengages forwardly in response to a misfire or the like to provide a bleed path for igniting the propellant charge (41) associated with the next leading projectile (30).
Patent CA-2294589-A1 (CA)
Inventor: CAVAZZA CLAUDIO
IPC: A61P25/18
Filed: 1998-06-12
Abstract: The use of acetyl L-carnitine and its pharmacologically acceptable salts is disclosed for producing a composition suitable for controlling mood disorders mainly in young individuals who are not affected by permanent pathological CNS  disturbances.
Patent CA-2296608-A1 (CA)
Title: Densitometer, test piece for the densitometer, biosensor system, and method for forming terminal of the test piece
Inventor: KAWANAKA SHOJI
IPC: G01N27/30
Filed: 1998-07-15
Abstract: The present invention provides a test strip and concentration measuring apparatus, a biosensor system and a method for forming terminals of the test strip, whereby a component can be measured by fitting the test strip to the component. A type judgement electrode is provided separately from a positive electrode and a negative electrode in a measuring apparatus so as to judge the insertion of a test strip with the measuring apparatus. Thus only when a test strip matching the measuring apparatus is inserted, the type judgement electrode electrically connected to a terminal of the test strip, enabling the measuring apparatus to measure a component in a liquid test sample. A measuring apparatus detects a change in calibration curve information selection for selecting calibration curve information corresponding to a production lot of the test strip to compensate for error in a measured concentration value.