baber/WOPTO huggingface dataset:
Patent CA-2298360-A1 (CA)
Title: Orthogonal frequency division multiplexing based spread spectrum multiple access
Inventor: LI JUNYI
IPC: H04W72/04
Filed: 2000-02-11
Abstract: In an orthogonal frequency division multiplexing (OFDM) based spread spectrum multiple access system the entire bandwidth is divided into orthogonal tones, and all of the orthogonal tones are reused in each cell. To reduce peak-to-average ratio at the mobile transmitter, each voice user is allocated preferably a single one, but no more than a very small number, of the orthogonal tones for use in communicating with the base station. Data users are similarly allocated tones for data communication, however, the number of tones assigned for each particular data user is a function of the data rate for that user. The tone assignment for a given user is not always the same within the available band, but instead the tones assigned to each user are hopped over time. More specifically, in the downlink, the tones assigned to each user are change relatively rapidly, e.g., from symbol to symbol, i.e., the user fast "hops" from one tone to another. However, in the uplink, preferably slow hopping is employed to allow efficient modulation of the uplink signal which necessitates the employing of additional techniques, such as interleaving, to compensate for the reduction in the intercell interference averaging effect. For data communication power control is employed in the uplink and/or downlink so that the transmission rate is increased, e.g., by increasing the number of symbols transmitted per tone per unit time or the coding rate, as a function of allocated power per tone and the corresponding channel attenuation.
Patent CA-2299001-A1 (CA)
Title: Silicone rubber composition
Inventor: MASATOMI TORU
IPC: C08G77/46
Filed: 2000-02-18
Abstract: A silicone rubber composition comprising 0.01 to 50 weight percent of a perfluoroalkyl group-containing polydiorganosiloxane having on a side chain (F1) an organic group selected from the group consisting of polyoxyalkylene group-containing organic groups, C12 or higher alkyl groups, and polydialkylsiloxane chain-containing organic groups, and having on a side chain or at a molecular chain terminal (F2) a perfluoroalkyl group-containing organic group described by the general formula F(CF2)a-R1-, where R1 is selected from the group consisting of an alkylene group, an alkyleneoxyalkylene group, and a group in which =CO or ~COO- is present in an alkylene chain, and a is an integer of at least 3, and having a weight average molecular weight of at least 1000.
Patent CA-2299152-A1 (CA)
Inventor: MARCHAL NATHALIE
IPC: C10G45/06
Filed: 2000-02-22
Abstract: Procédé de production d'essence à faible teneur en soufre comprenant au moins les deux étapes suivantes: a) une étape d'hydrogénation des composés soufrés insaturés, b) une étape de décomposition des composés soufrés saturés. et éventuellement une étape préalable de prétraitement de la charge telle qu'une hydrogénation sélective des diènes.
Patent CA-2301031-A1 (CA)
Title: Hull configuration of a modified tracked vehicle
Inventor: BURNHAM HARLAN
IPC: B62D21/18
Filed: 1998-08-11
Abstract: This invention pertains to a method of reconfiguring a family of the armored, tracked vehicle of the troop carrying type to enhance producibility and protection from mine blast fragments. By using the configuration and modification disclosed herein, mine blast protection, verticle obstacle crossing capability and cross country mobility are enhanced.
Patent CA-2304277-A1 (CA)
Title: Fax and modem cable retractor with low electrical resistance and high fire retardancy
Inventor: WHEELER EDWIN LEE
IPC: H04N1/00
Filed: 2000-03-31
Abstract: The invention includes a cord retractor device, which operates by winding electrical cord inside a casing to allow extension of the cord or retraction of the cord, when desired. The invented cord winder has been designed to have low resistance to electrical current, which is exhibited by low temperature rise in the casing of the cord winder when voltage is applied to, and current is flowing in, the cord. The cord winder is also designed to be highly flame retardant, which is exhibited by low amounts of cable charring, melting, and releasing of burning particles in a standard flame test. This fire-safety performance is achieved in combination with a highly-effective, compact, and long-lived cord winder. This performance is achieved by using a combination of a relatively large diameter metal strand bundle, preferably of copper wire, inside a flat cable of insulator material having fire-retardant additives. The large diameter wire bundles are covered with a very thin layer of insulation, resulting in a surprisingly flexible and low-heat-producing cable that winds inside a 2 - 3 inch diameter retractor in lengths of up to 12 - 24 feet.
Patent CA-2304817-A1 (CA)
Inventor: FORTIN ANDRE
IPC: E04H15/32
Filed: 2000-04-30
Abstract: Dans une tente de type modulaire la porte est généralement faite du même matériel que la tente et d'une fermeture éclair. La présente invention est une porte que l'on ajoute à l'intérieure et que l'on attache à des rabats déjà existant sur cette tente. Ce qui à pour but de prolonger la durée de vie de la fermeture éclair.
Patent CA-2304874-A1 (CA)
Inventor: TAKATORI HIDEO
IPC: B22F1/145
Filed: 1999-07-21
Abstract: The present invention provides a metallic nickel powder in which the occurrence of delamination can be prevented by providing superior sintering properties in production processes for multilayer ceramic capacitors and by providing superior dispersion characteristics in the forming of conductive pastes.   By being brought into contact with nickel chloride gas and a reducing gas at a temperature in the range of the reduction reaction, metallic nickel powder is produced in which the oxygen content is 0.1 to 2.0% by weight and there is no absorption peak at wavelengths ranging from 3600 to 3700 cm-1 in infrared spectroscopy.
Patent CA-2305973-A1 (CA)
Inventor: NAKAO FUMIAKI
IPC: C09D5/44
Filed: 2000-04-19
Abstract: According to the present invention, provided is a cationically electrodepositable coating material comprising a resin for a cationically electrodepositable coating material, a hydrotalcite-like solid solution having a specific composition and, if necessary, a basic bismuth compound and/or an organic acid salt thereof. Such cationically electrodepositable coating material forms a coating film which is excellent in performances such as an edge corrosion-preventive property, a throwing power, a chemical resistance and a smoothness without adding harmful substances such as lead compounds and chromium compound.
Patent CA-2306247-A1 (CA)
Inventor: SUZUKI ROKURO
IPC: C09K5/06
Filed: 2000-04-19
Abstract: Disclosed is a freezable coolant composition used for cold-preservation of, e.g., foods by utilizing the latent heat of fusion at the freezing point which is substantially higher than 0°C and in the range, for example, from 5°C to 26°C. The composition is a ternary mixture consisting of: (A) from 98.0 to 8.0% by weight of 1,6-hexanediol; (B) from 0.5 to 3.0% by weight of sodium benzoate; and (C) from 1.5 to 89.0% by weight of water, each percentage being based on the total amount of the components (A), (B) and (C).
Patent CA-2308335-A1 (CA)
Inventor: MUNTERMANN AXEL
IPC: A61N2/00
Filed: 1998-10-16
Abstract: The invention relates to a device for magnetic field therapy of human, animal or plant tissue. The invention comprises at least one unit (1,2,3,2',3',4) for generating a magnetic field with a statistical and an alternating field component at the location of the tissue which is to be treated. The magnetic alternating field has a predetermined cell biorhythm frequency v z and is essentially monochromatic.  The inventive device additionally comprises a unit for amplitude modulation of the magnetic alternating field with a modulation frequency v o.
Patent CA-2308773-A1 (CA)
Inventor: TRAN BACH DINH
IPC: A61P25/28
Filed: 1998-10-21
Abstract: The invention provides estrogens and antiestrogens of formula (I) having structure (I) wherein R is (II), (III), (IV), or (V); R1 and R2 are each, independently, alkyl of 1-6 carbon atoms, or are alkyl groups which are taken together to form a 5-7 membered satured heterocycle; X is hydroxy, alkoxy of 16 carbon atoms, or -OC(O)R3; W is (VI), hydroxy, alkyl of 1-6 carbon atoms, halogen, -CF3, alkoxy of 1-6 carbon atoms, -CHO, cyano, alkylcarbonyl of 2-7 carbon atoms, alkoxycarbonyl of 2-7 carbon atoms, amino, alkylamino of 1-6 carbon atoms, dialkylamino of 1-6 carbon atoms per alkyl group, trifluoromethoxy, hydroxyalkyl of 1-6 carbon atoms, alkoxyalkyl of 2-12 carbon atoms, -CN, -SO3H, or -CO2H; R3 is alkyl of 1-6 carbon atoms; Z is (VII), (VIII), (IX), or (X); Y is (XI), (XII), or (XIII); R4 is hydrogen, alkyl of 16 carbon atoms, alkoyl of 2-7 carbon atoms, or benzoyl; Q is hydrogen, -OR5, or -NR6R7; R5 is hydrogen or alkyl of 1-6 carbon atoms; R6 and R7 are each, independently, alkyl of 1-6 carbon atoms, or are alkyl groups which are taken together to form a 5-7 membered saturated heterocycle; n = 4-12; and p = 2-6; or a pharmaceutically acceptable salt thereof.
Patent CA-2309043-A1 (CA)
Inventor: WAGSTAFF ROBERT BRUCE
IPC: B22D11/16
Filed: 1998-10-13
Abstract: Lorsqu'un corps d'une matière de démarrage (70) est interposé dans la cavité (4) entre le bloc de démarrage (60) et un premier plan transversal (72) de la cavité perpendiculaire à l'axe (12) de cette dernière, et lorsque le bloc de démarrage a commencé un mouvement alternatif le long de cet axe en tandem avec le mouvement alternatif du corps de la matière de démarrage à travers une série de plans transversaux (74), des couches (76) de métal fondu sont successivement superposées sur le corps de la matière de démarrage de manière adjacente au premier plan transversal de la cavité, et ces couches sont distendues rapidement et s'éloignent de l'axe relativement vers l'extérieur et la périphérie, sous l'effet des forces propres d'abrasement qui s'y exercent. Le procédé de l'invention circonscrit la distention relative des couches vers l'extérieur et la périphérie au moyen d'une surface de moulage (62) évasée vers le bord extérieur autour de l'axe de la cavité, si bien que les forces de contraction thermique exercées par chaque couche peuvent contrebalancer les forces d'abrasement.
Patent CA-2309260-A1 (CA)
Title: 2,4-substituted pyrimidines and their use in herbicidal compositions
Inventor: KOETHER GERARD MICHAEL
IPC: C07D401/04
Filed: 1998-10-20
Abstract: Compounds of formula (I), and their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation, wherein J is (J-1), (J-2), (J-3), (J-4), (J-5), (J-6) or (J-7); and J, W, X, Y, Z, A, R1-R8 are as defined in the disclosure. Also disclosed are compositions containing the compounds of formula (I) and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of formula (I).
Patent CA-2310354-A1 (CA)
Title: Plant or seedling protector
Inventor: KENDALL JOHN
IPC: A01G13/10
Filed: 2000-05-30
Abstract: An apparatus for protecting a plant, especially a seedling, from browsing wildlife which comprises a collapsible tube made from fabric, fabric-mesh, or fabric-like material, each end of which tube is attached to two rings, affixed to each of which rings is attachment means for securing the collapsible fabric tube to a support stake inserted into the ground, wherein the extended tube serves to restrict the access to the plant or seedling contained therein by browsing wildlife and wherein the tube defines a space within which the contained plant or seedling can grow unimpeded.
Patent CA-2310389-A1 (CA)
Inventor: KAMOGAWA MASAHIRO
IPC: F23R3/14
Filed: 1999-09-17
Abstract: A combustor for gas turbine, wherein a nozzle cap (10) is disposed on the downstream side of a nozzle body (1) of the combustor and its inner surface part (12) is formed in a conical shape gradually larger in diameter toward the downstream side so as to form a fuel jet guide (17) which guides the fuel jet injected from an injection hole (3) provided in the nozzle body at the center part of a downstream side end surface (2) and the fuel injected from the injection hole advances along the jet guide, mixes into a swirl flow (S) in a swirl flow path (9) smoothly without stagnation and burns, thus preventing smoke from producing, and the air introduced, on the upstream side, into a first auxiliary air path (6) between the nozzle body and a partition (5) passes a second auxiliary air path (16) formed between the downstream side end surface (2) of the nozzle body (1) and the upstream side end surface (13) of the nozzle cap, reaches an inlet (19) of the fuel jet guide, and then flows along the fuel jet guide, whereby the nozzle cap is cooled and the fuel injected from the injection hole is prevented from depositing on the nozzle cap.
Patent CA-2310555-A1 (CA)
Title: A combined process for improved hydrotreating of diesel fuels
Inventor: ZEUTHEN PER
IPC: C10G67/04
Filed: 2000-06-01
Abstract: Described herein is a combined process for improved hydrotreating of diesel fuels, in which the feed to be hydrotreated is pretreated with a selective adsorbent prior to the hydrotreating step to remove polar materials, especially nitrogen containing compounds (N-compounds). By removing the N-compounds in this way, it is possible to achieve extremely high conversions of refractory sulphur compounds in the diesel fuel at moderate hydroprocessing conditions. If the diesel fuel is hydrotreated without prior removal of N-compounds, excessive amounts of hydrotreating catalysts must be used and high temperatures and pressures must be employed. This is particularly true when sulphur levels of below 500 ppm are desired. The selective adsorption process can employ either liquid or solid adsorbents, and may be operated in a variety of modes, including stirred tanks, hydroclones, moving beds, fixed beds, ebulated beds or fluidized beds. In operations, where the adsorbent and diesel fuel are both moving through the reaction adsorption zone, the flows can be either cocurrent or countercurrent.      After contact of the adsorbent with the diesel fuel feed, the adsorbent containing undesired polar compounds is separated from the diesel fuel and the inhibitor free fuel is processed in conventional equipment. The separated adsorbent is then subjected to a two step procedure for regeneration. First any physically adsorbed inhibitor free fuel is recovered. For example, if a solid adsorbent is employed, the solid containing physically adsorbed diesel fuel is contacted with a stripper gas such as steam to strip off the inhibitor free fuel, while leaving the polar compounds strongly adsorbed on the solid adsorbent. The polar compounds may then be removed either by a oxygenative or hydrogenative process.
Patent CA-2311390-A1 (CA)
Title: Method for determining position of mobile communication terminals
Inventor: RINNBACK LENNART
IPC: H04W64/00
Filed: 1998-11-17
Abstract: A number of different solutions are disclosed for gathering access delay and distance measurement information for use in determining the position of a cellular mobile station (112, 160). For all of these solutions, one frequency and one uplink channel in each cell are dedicated for position determination.  In one aspect of the present invention, a method is provided for determining the position of a mobile station (112, 160) using handover procedures for all of the cells or certain predefined cells in the network (100). One uplink channel is dedicated within each cell in the network (100) to be used for position determination. These positioning channels continuously listen for handover access requests. Cells detecting (124) the access bursts can measure (124) the access delay and determine the distance (128) to the requesting mobile station (112, 160). A triangulation calculation (128) is used to pinpoint the mobile station's (112, 160) position. In another aspect of the present invention, a method is provided for determining the position of a mobile station (112, 160) using position determination procedures for all of the cells or certain predefined cells in the network (100).
Patent CA-2312710-A1 (CA)
Title: Sustained release formulation containing three different types of polymers and tablet formed therefrom
Inventor: PINNAMARAJU PRASAD
IPC: A61K9/22
Filed: 1998-12-03
Abstract: Depot drug formulations include the pharmaceutical itself and a three component release rate controlling matrix composition. The three components of the matrix composition are (1) a pH dependent gelling polymer such as an alginate component; (2) an enteric polymer component, such as Eudragit® L or S; and (3) a pH independent gelling polymer, such as hydroxy propyl methyl cellulose or polyethylene oxide. The drug release rate can be adjusted by changing the amount of one or more of these components of the composition.
Patent CA-2316277-A1 (CA)
Title: Tablet for instant and prolonged release of one or more active substances
Inventor: SASLAWSKI OLIVIER
IPC: A61K9/22
Filed: 1998-12-11
Abstract: The invention relates to a multilayer tablet for the instant and then prolonged release of active substances comprising at least two superposed layers, characterized in that: a first outer layer is composed of a mixture of excipients and of a first active substance, the said first layer allowing immediate release of the said first active substance; a second layer, arranged in contact with the said first layer, consists of a nonbiodegradable, inert porous polymeric matrix in which a second active substance is dispersed.
Patent CA-2316568-A1 (CA)
Title: Intracardiac cell delivery and cell transplantation
Inventor: SCHWARTZ YITZHAK
IPC: A61B17/22
Filed: 2000-08-22
Abstract: A method for delivering a cell to a heart of a patient comprises the steps of providing an apparatus for intracardiac drug adminstration comprising a catheter wherein the catheter has at least one position sensor which generates signals responsive to the position of a catheter and a drug delivery device for delivering the cell. The catheter is inserted into a chamber of the heart at a site and the cell is delivered to the site with the drug delivery device in response to the signals from the position sensor. Typical cells useful for delivery are either myoblasts or myocytes. These cells may be utilized as either an expression vector for promoting angiogenesis or for cell transplantation and fusion through myogenesis.
Patent CA-2318700-A1 (CA)
Inventor: SENGA KUNIYUKI
IPC: C09B67/02
Filed: 2000-09-13
Abstract: Disclosed is a thermochromic microencapsulated pigment which comprises as four essential components (a) an electron-donating chromatic organic compound, (b) an electron-accepting compound, (c) a reaction medium determining the temperatures at which the color reactions of component (a) with component (b) take place, and (d) a color change temperature regulator, the color change temperature regulator (d) comprising one or more compounds selected from the group consisting of esters, alcohols, ketones, acid amides, hydrocarbons, and fatty acids and having a melting point Y (°C) satisfying the relationship (X+30)°C ~ Y ~ 200°C, wherein X (°C) is the melting point of component (c), and the four essential components being microencapsulated.
Patent CA-2322505-A1 (CA)
Inventor: FOLKERSEN JORGEN
IPC: C07K19/00
Filed: 1999-03-05
Abstract: A method of producing in a recombinant lactic acid bacterium such as Lactococcus lactis a bioreactive polypeptide derived from mycobacteria belonging to the M. tuberculosis complex Mycobacterium tuberculosis, Mycobacterium africanum and Mycobacterium bovis or any other mycobacterial species. The lactic acid bacterially produced polypeptide is in the form of monomer or polymers of one or more polypeptide and it is useful as a diagnostic agent in delayed type hypersensitivity (DTH) skin tests in animals and humans and in vaccines. A bioreactive ESAT-6 homodimer polypeptide is described.
Patent CA-2324032-A1 (CA)
Title: Apparatus for safeguarding a merchandise item against theft
Inventor: OTT REINHOLD
IPC: G08B13/14
Filed: 2000-10-20
Abstract: In order to develop an apparatus for safeguarding a merchandise item against theft, having a safeguarding part for fixing to the merchandise item and having a connecting cord for connecting the safeguarding part to an object which is not at risk of theft in such a way that it allows improved presentation of the merchandise item, it is proposed that the safeguarding part comprises a substantially rigid base part and also a fixing part, which can be fixed to the merchandise item and can be adapted to the form of the merchandise item at least in a partial region of its surface associated with the merchandise item.
Patent CA-2325884-A1 (CA)
Inventor: JONES EDDIE
IPC: A61F13/38
Filed: 1999-03-22
Abstract: The invention concerns an apparatus (1) related to an instrument for cleanin g wounds (2) in the form of a holder (3) which contains liquid (4) for treatin g wounds and the like. According to the invention the liquid holder (3) and a further space (5), which contains liquid absorbing material (6) like for instance cotton, are separated from each other by a valve (7) which can be activated to open a passage (8) between said liquid holder (3) and space (5)  for liquid absorbing material (6), which forms a tip for said instrument for  cleaning wounds (2).
Patent CA-2327621-A1 (CA)
Inventor: MATSUBARA ATSUSHI
IPC: B60L50/16
Filed: 2000-12-05
Abstract: This invention relates to an engine stall prevention apparatus for a hybrid vehicle. This engine stall prevention apparatus comprises a clutch operation detection device which detects an operation of a clutch; a clutch state determination device which determines the state of the clutch based on the relationship between the vehicle speed and the engine speed; a throttle opening degree determination device which determines the degree of throttle opening of the engine; a first engine speed modification device (S010) which modifies a charging/regeneration allowing lower limit engine speed value above which deceleration regeneration by the electric motor is allowed; and a half engaged clutch determination maintaining device (S008) which outputs a determination signal indicating that the clutch is half engaged for a predetermined period of time when the throttle is completely closed and the clutch is determined to be half engaged.  When a half engaged clutch determination is maintained, the first engine speed modification device elevates the charging/regeneration allowing lower limit engine speed value.
Patent CA-2329030-A1 (CA)
Title: A composite packaging material having a base layer of paper and an attached tubular sleeve envelope of plastic material, particularly for food products
Inventor: RIVOLTELLA LUIGI
IPC: B65D65/02
Filed: 2000-12-18
Abstract: Subject matter of this invention is a composite double component packaging material, particularly for food products, comprising first component (10), consisting of a base sheet of paper material, upon which a second component (11) formed by a tubular sleeve of a thin film of plastics material is adhered, of a kind approved for use with food products. Said sleeve member can be longitudinally cut in suitable position to realize one or two free foldable flaps (11'; 13,14).