baber/WOPTO huggingface dataset:
Patent CA-2006468-A1 (CA)
Title: Naphthalene derivatives
Inventor: OKITA MAKOTO
IPC: C07C69/157
Filed: 1989-12-21
Abstract: Abstract A naphthalene derivative having the formula is new and useful for medicine.              [wherein R' represents a hydrogen atom  a lower alkyl group or an acyl group;     R2 independently represents a hydrogen atom,  a lower alkyl group,  a lower alkoxy group,  a halogen atom,  a cycloalkyl group, a cycloalkylalkyl group, a hydroxyl group,  an aryl group which may be substituted,  an arylalkyl group whose aryl group may be substituted,  a heteroaryl group, or a heteroarylalkyl group;    R3 and R4 are  the same or different and represent a hydrogen atom, a lower alkyl group, a lower alkenyl group, an aryl group which may have a substituent, an arylalkyl group whose aryl group may be substituted, an arylalkenyl group whose aryl group may be substituted, a cycloalkyl group, an alkoxyalkyl group, a heteroaryl group, a heteroarylalkyl group, a carboxyl group, a carboxyalkyl group, an aminoalkyl group, or a cyano group;           R5 represents a group of the formula, -OR7. (wherein R7 represents a hydrogen atom or a lower alkyl group), or a group of the formula,  , (wherein R? and R? are the same or different and represent a hydrogen atom or a lower alkyl group, or R? and R? can form, along with the nitrogen atom bonded with R? and R?, a ring which may contain an oxygen atom); R? independently represents a hydrogen atom, a halogen atom, a lower alkyl group, a lower alkoxy group, a hydroxyl group, an amino group, a arylalkyl group, or an aryl group; and m is 0 or an integer of from 1 to 2, and n is 0 or an integer of from 1 to 4.)
Patent CA-2007270-A1 (CA)
Title: Growth-promoting agent for bifid bacteria
Inventor: MITSUHASHI MASAKAZU
IPC: A61K31/715
Filed: 1990-01-05
Abstract: Abstract of the Disclosure Pullulan  and  dextran  promote  the  growth of  bifid bacteria in human and animal.  Such promotion is effective in maintaining and improving health and beauty,  as well as  in preventing and/or treating diseases such as geriatric diseases, hyperammonemia  and  hepatic  encephalopathy.  The  presence  of certain  oligosaccharide(s)   such  as  lactulose,  raffinose, lactosucrose,  isomaltooligosaccharide,  fructooligosaccharide, galactooligosaccharide and xylooligosaccharide greatly enhances such promotion.  Thus, pullulan and dextran are advantageously usable for or in health foods, pharmaceuticals,  animal feeds and pet foods.
Patent CA-2008845-A1 (CA)
Title: Focused multielement detector for x-ray exposure control
Inventor: SCHEID CARL C
IPC: H05G1/26
Filed: 1990-01-30
Abstract: Abstract of the Disclosure A multi-zoned x-ray exposure detector for a scanning fan beam x-ray system comprises an electron emitter which upon exposure to x-rays emits electrons into a channel defined by an isolation walls.  The channel contains air which is ionized.  The isolation walls extend parallel to the direction of the sweeping fan beam behind the electron emitter.  Within each channel formed by the isolation walls, is a collection electrode biased in voltage with respect to the electron emitter to collect the ions.  The intersection of the beam and the channel defines a zone in which exposure may be determined.     The current from the collection electrode is amplified by a amplifier to produce a signal related to x-ray exposure of each zone.
Patent CA-2012221-A1 (CA)
Title: Fibre optique pour la conversion de frequence
Inventor: POUMELLEC BERTRAND
IPC: H01S3/067
Filed: 1990-03-15
Abstract: Fibre optique pour la conversion de  fréquence présentant  une  structure  à  profil  d'indice  annulaire permettant de réaliser l'accord de phase à l'ordre zéro et le recouvrement optimum des modes propres de propagation de la fibre, l'un progapeant l'onde .omega. et l'autre l'onde k.omega. avec 2  k  4 pour au moins une longueur d'onde comprise entre 0,4 µmp et 2,6µm, le saut d'indice .DELTA.n dans l'anneau étant compris entre 2 x 10-2 et 5 x 10-2, le rayon intérieur ri de l'anneau étant compris entre 0,5 µm et 1,5 µm, et le rayon extérieur re de l'anneau étant compris entre 2 µm et 3,5 µm.
Patent CA-2012463-A1 (CA)
Title: Individual package for orthodontic bracket
Inventor: BOLLIGER DIANE K
IPC: A61C7/12
Filed: 1990-03-19
Abstract: ABSTRACT      A holder for dental brackets having a frame which has an Adhesive face on one side.  The frame is foldable around a central line.  Within each part of the frame is a transparent plastic.  Thus, the dental brackets fit within the transparent plastic pouch formed by the frame and are manageable, identifiable, and remain sanitarily safe during transport.  In addition, the stackable nature of the frames makes them easier to store.
Patent CA-2016707-A1 (CA)
Title: Process for resolving 1-azabicyclo[2.2.1]heptane-3-carboxylates
Inventor: SHOWELL GRAHAM A
IPC: C07D471/08
Filed: 1990-05-14
Abstract: ABSTRACT Title: PROCESS FOR RESOLVING 1-AZABICYCLO[2.2.1 A process for preparing a substantially pure enantiomer of a 1-azabicyclo[2.2.1]heptane, 1-azabicyclo[3.2.1] octane or quinuclidine, substituted on the carbon atom .beta. to the ring nitrogen by a carboxy group, by synthesising and separating diastereomeric derivatives thereof wherein the hydroxy group of the carboxy is replaced by a residue of a chiral amine or .alpha.-amino acid.
Patent CA-2020770-A1 (CA)
Title: Valve flange retainment system
Inventor: DAVIS JAMES R
IPC: F16L23/028
Filed: 1990-07-09
Abstract: 21-56(5599)A          VALVE FLANGE RETAINMENT SYSTEM              ABSTRACT OF THE DISCLOSURE         A separable flange retainment system includes a first boss on the flange and a mating second boss on a valve body.  The boss on the valve body has a threaded aperture for reception of a suitable fastener.   A generally U shaped retainer device having an orifice in its bight portion straddles the bosses and is secured in position by the fastener.  The retainer device precludes lateral and rotational movement between the flange and the body.
Patent CA-2024196-A1 (CA)
Title: Porous microbead permeable to macromolecules having immobilized therein at least one biological particulate
Inventor: CHANG THOMAS M S
IPC: C07K17/08
Filed: 1990-08-29
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention relates to a porous microbead having a size range between 100µ and 10mm and at least one biological particulate immobilized therein, said immobilized particulate being selected from the group consisting of microorganism, cell, a suspension of enzymes and a suspension of proteins, wherein said microbead is further characterized by having pores therethrough and wherein the average size of said pores ranges between 30.ANG. and 1µ and allows the release of any macromolecule derived from said immobilized particulate to the outside of said microbead and the exchange of any other macromolecule between the outside and the inside of said microbead. There is also provided a preferred embodiment wherein said particulate is the microorganism P. pictorum which possesses the ability to breakdown cholesterol in a macromolecular cholesterol-lipoprotein complex, and wherein said cholesterol containing liquid is flowed through said microbead thereby causing the cholesterol of the cholesterol-lipoprotein complex which penetrate into said microbead from the outside medium of said microbead to be degraded by said immobilized microorganism or components thereof such as bacterial extracts and releasing said lipoprotein to the outside of said microbead.
Patent CA-2025428-A1 (CA)
Title: Extrusion of reinforced composite material
Inventor: JEFFREY PAUL W
IPC: C22C1/10
Filed: 1990-09-14
Abstract: Abstract A process is described for extruding metal matrix composite materials,  e.g.  aluminum matrix composites.   The problem of inconsistent extrudate surfaces is solved by controlling the extrusion speed such that it is maintained above a lower speed limit below which low speed tearing of the extrudate surface occurs and below an upper speed limit above which incipient melting and consequent speed cracking of the extrudate surface occurs.
Patent CA-2025766-A1 (CA)
Title: Quantitative determination method of chemicals for processing semiconductor and an apparatus thereof
Inventor: KOASHI KATSUE
IPC: G01N21/35
Filed: 1990-09-19
Abstract: ABSTRACT    The present invention relates to a quantitative determination method of a medicament for processing semiconductor by near-infrared spectrometry at 800 - 1400 nm and an apparatus which is adapted to the practice of said method.  According to the present invention, concentration of an aqueous solution of the medicament can be determined without drawbacks of the prior methods.
Patent CA-2027300-A1 (CA)
Title: Electric connection device intended to be placed in the wall of a metallurgical container in contact with molten metal
Inventor: HAMY MICHEL
IPC: F27D11/10
Filed: 1990-10-10
Abstract: The electric connection device comprises an electrode (5), a sleeve (19) mounted around a projecting end part (8) of the electrode (5), and an arrangement for cooling the sleeve (19) with a cooling fluid comprising at least one system (20, 20') of nozzles (21) spraying cooling fluid onto the outer surface of the sleeve (19).
Patent CA-2028677-A1 (CA)
Title: Aqueous polymer dispersions and a process for their production
Inventor: GRUBER HERMANN
IPC: C08L33/04
Filed: 1990-10-26
Abstract: AQUEOUS POLYMER DISPERSIONS AND  A PROCESS FOR THEIR PRODUCTION                  ABSTRACT OF THE DISCLOSURE     The present invention relates to an aqueous polymer dispersion containing at most 22% by weight of organic solvents and 30 to 60% by weight of dispersed polymers, characterized in that the dispersed polymers contain A)   20 to 80% by weight of chlorinated, natural or synthetic polymers having a chlorine content of 60 to 70% by weight and B)   20 to 80% by weight of non-chlorinated polymers.      The present invention also relates to a process for the production of an aqueous polymer dispersion characterized in that an at least 50% by weight solution in an inert solvent of a chlorinated, natural or synthetic polymer A) having a chlorine content of 60 to 70% by weight is mixed with water in the presence of external emulsifiers to form a water-in-oil emulsion and subsequently the water-in-oil emulsion is combined with an aqueous dispersion of at least one non-chlorinated polymer to form an oil-in-water dispersion, wherein the type of and quantitative ratios between the individual components are selected such that the resulting dispersion has a solvent content of at most 22% by weight, a dispersed polymer content of 30 to 60% by weight and a weight ratio of chlorine-containing polymers A) to non-chlorinated polymers B) of 80:20 to 20:80.
Patent CA-2029758-A1 (CA)
Title: Fluorescent pot light retrofit unit and method of making same
Inventor: MOCHERNIAK MYROSLAV
IPC: H01R33/00
Filed: 1990-11-13
Abstract: ABSTRACT OF THE DISCLOSURE            A fluorescent lighting system for use in commercial or residential recessed lighting applications as either a retrofit unit or as a unit of choice in new lighting applications.  This lighting system is primarily designed for installation into standard recessed or pot light style lighting fixtures without requiring any modification to the lighting fixture, while providing equivalent light intensity to standard  incandescent  lighting  units,  and    while  consuming substantially less energy during operation. This lighting system also provides means for bulb replacement without requiring the entire lighting unit be replaced,  as is the case with standard sealed incandescent lighting units typically employed in these or similar applications.
Patent CA-2032766-A1 (CA)
Inventor: DELGADO JOAQUIN
IPC: B01J13/14
Filed: 1990-12-20
Abstract: Docket Number: 44408CAN9A          Abstract Hollow, polymeric, acrylate, infusible, inherently tacky, solvent-insoluble, solvent-dispersible, elastomeric, nitrogen-containing, acid-free pressure-sensitive adhesive microspheres having an average diameter of at least about 1 micrometer wherein a majority of the microspheres contain multiple interior voids, a majority of the voids having a diameter of less than about 10% of the diameter of the microsphere, the total of the diameters of the voids being at least about 10% of the diameter of the microsphere.          These hollow microspheres are useful as repositionable pressure-sensitive adhesives.  The invention also provides pressure-sensitive adhesives consisting essentially of such acid-free hollow microspheres.  Aqueous suspensions of these microspheres, processes for their preparation, spray repositionable pressure-sensitive adhesive compositions, and pressure-sensitive adhesive coated sheet materials are also provided.  Surprisingly, hollow microspheres of the invention may be used in combination with delicate substrates such as photographs without causing discoloration or damage, in comparison with prior art repositionable pressure-sensitive adhesives.
Patent CA-2032795-A1 (CA)
Title: Method for securing terminal and terminal apparatus for use with the method
Inventor: HU WEI-MING
IPC: G06F21/62
Filed: 1990-12-20
Abstract: ABSTRACT    Secret information can sometimes be illicitly scavenged from host-readable and -writable memories in a terminal that accesses a computer.  Access-mediating security kernel soft-ware attempts to clear such memories upon particular occa-sions such as, e.g., an attempt by a user to switch from ac-cessing a more highly-secret process to accessing a less highly-secret process.  A group o e useful "black box" test-ing operations permits the security kernel to obtain certain empirical information about the characteristics of the ter-minal.  The sending of a predetermined number of NUL char-acters serves as a timer both for the security kernel and for the terminal during some of the "black box" operations. In addition, specially designed terminal-control software may cooperate with the security kernel to support particular terminal functions such as a secure-reset routine responsive to a secure-reset command sent by the host.
Patent CA-2033079-A1 (CA)
Inventor: VON HAGEN INGO
IPC: C23C2/00
Filed: 1990-05-08
Abstract: Cette invention concerne une méthode de production de lingots creux revêtus à être transformés en tubes métalliques sans soudure, en particulier en tubes d'acier, à paroi intérieure revêtue. Pour obtenir une méthode de production d'un lingot creux dont seule la paroi intérieure est revêtue sans les inconvénients des méthodes courantes, il est proposé de former un corps creux cylindrique à partir du matériau de revêtement, de l'immerger dans le métal de base fondu et de l'en extraire seulement lorsqu'une couche de métal de base suffisamment épaisse s'y soit cristallisée, le corps creux en métal de revêtement étant bouché aux deux extrémités pour empêcher la pénétration de métal de base fondu à l'intérieur.
Patent CA-2033219-A1 (CA)
Inventor: COMMANDEUR RAYMOND
IPC: C07C2/72
Filed: 1990-12-27
Abstract: Process for the synthesis of oligomers of benzyltoluene in which the condensation of benzyl chloride with toluene is carried out in the presence of ferric chloride and then a treatment with, in particular, sodium methoxide is carried out to eliminate the chlorinated organic products. The oligomers obtained, essentially benzyltoluene and dibenzyltoluene, are suitable as a dielectric fluid.
Patent CA-2035136-A1 (CA)
Inventor: LOTHMANN JOSEF
IPC: B22D41/20
Filed: 1991-01-29
Abstract: An apparatus for controlled adjustment of a stopper (56) of a distributor channel or metallurgical vessel (57) in a continuous casting plant (for billets or ingots), the stopper (56) being connected to a crosstie or stopper rod (22) disposed above the distributor channel or metallurgical vessel and the crosstie stopper rod itself being connected to a support bar which is movable up and down in a vertical guide means.  The vertical guide means of the support bar (square section part 1) is a roller guide means comprising support rollers (10') or support balls (10') which are clamped without clearance between the support bar and an outer housing (2, 3, 7).
Patent CA-2035777-A1 (CA)
Inventor: ISE MASAHIRO
IPC: G08B5/22
Filed: 1991-02-06
Abstract: A radio pager system and pager terminal apparatus used in the system are disclosed.   A pager signal to be transmitted includes destination information and message specifying  information  for  specifying  a  message  to  be transmitted.    The  pager  terminal  apparatus  includes  a receiver for receiving an incoming pager signal, a detector for detecting that the received pager signal is a signal destined  for  the  pager  terminal  apparatus  itself,  an extracting  circuit  for  extracting  message  specifying information from the pager signal transmitted to the pager terminal apparatus itself, and message displaying apparatus responsive to the extracted message specifying information for displaying a message corresponding to it in a visually recognizable manner.  The radio pager system includes the above  pager  terminal  apparatus,  a  station  for  radio-transmitting  a  pager  signal,  and  transmission  terminal apparatus for supplying the destination information and the message  information  to  the  station.    The  data  to  be transmitted is not the body of the message but message specifying information,  so that the amount of data to be transmitted is reduced.   The communication is also kept secret.
Patent CA-2037978-A1 (CA)
Title: Styrenic polyamide alloy
Inventor: BILETCH HARRY A
IPC: C08L21/00
Filed: 1991-03-11
Abstract: STYRENIC POLYAMIDE ALLOY                 ABSTRACT OF THE DISCLOSURE         Polymer alloys having improved toughness comprise a blend of 20 to 30 weight percent of a polyamide; 15 to 30 weight percent of a rubbery polymer and 60 to 40 weight percent of a vinyl polymer containing 1 to 10 weight percent of a vinyl isocyanate monomer.  Preferred isocyanate monomers are m- or p-isopropenyl-alpha, alpha dimethylbenzyl isocyanate.
Patent CA-2041258-A1 (CA)
Title: Subset of human progenitor cells
Inventor: TERSTAPPEN LEON W
IPC: A61K35/14
Filed: 1991-04-25
Abstract: A SUBSET OF HUMAN PROGENITOR CELLS            Abstract A substantially pure population of  human progenitor  stem cells which lack CD38 but express CD34 is claimed.  These stem cells  are  pluripotent  and  are  capable  of  blast  colony formation.    These   cells   may   be  used   in  bone  marrow transplantation and gene therapy.
Patent CA-2041572-A1 (CA)
Inventor: SMITH TERRY M
IPC: H01Q5/00
Filed: 1991-05-01
Abstract: A dual frequency band antenna (10) having frequency reuse capability. The antenna waveguide (12) includes a four port waveguide network which transmits and receives orthogonal, linearly polarized signals of each of two frequencies. A pyramidal horn (14) is engaged to the mouth of the waveguide, and a meanderline polarizes (16) is engaged to the aperture (17) of the horn (14) to convert the signals from linear polarizations to circular polarizations.
Patent CA-2041933-A1 (CA)
Inventor: LATSKO JAMES M
IPC: F16D25/04
Filed: 1991-05-07
Abstract: An improved coupling component includes an annular tube which is inflatable to move friction shoe assemblies into engagement with another component of a coupling. Elastomeric mounting material is connected with the tube and is molded in place against the friction shoe assemblies.  The molded elastomeric mounting material extends around torque transmitting elements, such as pins, connected with backing plate of the friction shoe assemblies to connect the elastomeric mounting material with the friction shoe assemblies.  When the coupling component is to be constructed, the tube and a plurality of friction shoe assemblies are placed in a mold.  The tube is then expanded under the influence of fluid pressure to press elastomeric mounting material against the friction shoe assemblies.  Upon application of heat, the elastomeric mounting material is molded around torque transmitting elements connected with the friction shoe assemblies.
Patent CA-2042768-A1 (CA)
Title: Adjustable bed and interchangeable drive unit therefor
Inventor: ALEXANDER JAMES H
IPC: A47C20/04
Filed: 1991-05-16
Abstract: An adjustable bed and interchangeable drive unit therefor, which includes a bed frame, a plurality of separately adjustable bed sections pivotally secured to the frame, a corresponding plurality of controller shafts wherein each shaft controls one of the adjustable bed sections, a manual drive unit comprising a plurality of handcranks for individually driving each of the plurality of controller shafts, a powered drive unit comprising at least one electric motor operatively arranged for individually driving each of the controller shafts, and quick disconnect/connect means for interchanging the manual drive unit and the powered drive unit, wherein only one of the drive units is secured to the bed at any one time.
Patent CA-2042833-A1 (CA)
Title: A method for removing liquid from a mixture of liquid and solid matter
Inventor: PRINSSEN ALPHONS A J A
IPC: B01D33/66
Filed: 1991-05-17
Abstract: The invention relates to a method for removing liquid from a mixture of liquid and solid matter. Said mixture is led over one or more casings by means of a conveyor belt which is pervious to liquid. In use a sub-atmospheric pressure is generated in the casings during a first period, in which said casing(s) and said conveyor belt are stationary with respect to each other, whilst at the same time a pressure is exerted on the mixture by means of rollers. During a period following on said first period a relative movement takes place between the conveyor belt and the casing(s), whilst during this period no sub-atmospheric pressure is exerted in the casings and no compressive force is exerted on the mixture by means of the rollers.
Patent CA-2044931-A1 (CA)
Inventor: KAMATA HAJIME
IPC: G09G5/14
Filed: 1991-06-18
Abstract: A multiwindow display control method and apparatus for easily controlling a display of a plurality of groups of windows each including a plurality of windows, the apparatus comprising: plural frame memory control units each storing pixel data to be displayed on one of the windows, a first group number of a group of windows to which the window belongs, and a priority number for identifying a display priority among the windows included in the same group of windows; an outline generating unit for generating a second group number each identifying one of the group of windows; a pixel data arbitration unit for determining a group of windows having the first group number which coincides with the second group number, and for determining a window to be displayed having a highest priority number of the determined group of windows; and a display unit for displaying pixel data of the determined window.
Patent CA-2045435-A1 (CA)
Title: Dyeing agent, dyeing solution and method for dyeing cherry
Inventor: MIYAO NORIO
IPC: A23L5/42
Filed: 1991-06-25
Abstract: A dyeing agent for dyeing cherries comprises (a-1) a lac dye;   (b) alum; (c) L-ascorbic acid and/or a salt thereof; and (d) at least one member selected from the group consisting of phosphoric acid, tartaric acid, citric acid and malic acid and/or a salt thereof in an amount of 0.8 ~ 6.0 parts by weight of component (b), 1.0 ~ 10.0 parts by weight of component (c) and 3 ~ 23.3 parts by weight of component (d) relative to 1 part by weight of component (a-1), or (a-2) a cochineal dye and a lac dye; (b), (c) and (d) in an amount of 0.8 ~ 3.6 parts by weight of component (b), 1.0 ~ 6.0 parts by weight of component (c) and 3~ 14 parts by weight-of component (d) relative to 1 part by weight of component (a-2). A method for dyeing cherries comprises the steps of charging cherries to be dyed in a container together with a dyeing solution containing the dyeing agent, degassing the contents of the container, then sealing the container and heating the sealed container. Thereby, it is possible to uniformly dye cherries approximately natural red color. Thus, cherries can be dyed in high efficiency through simple processes, i.e., without using a multistage immersion treatment. Moreover, there can be obtained cherries whose texture is not softened, which are hard and tight and which exhibit favorable taste peculiar to cherries.