baber/WOPTO huggingface dataset:
Patent MX-PA04009956-A (MX)
Title: Absorbent cores with improved intake performance.
Inventor: DUCKER PAUL M
IPC: A61F13/15
Filed: 2003-04-09
Abstract: Multilayered absorbent cores are provided that include synthetic fiber to improve the liquid transport properties of the resulting absorbent articles. The synthetic fiber, which may be found in either the innermost and/or intermediate layers of the absorbent core, particularly improve the rewet performance of the absorbent article. The absorbent cores may be incorporated into a number of absorbent articles, including diapers, feminine hygiene products and incontinence pads.
Patent MX-PA04009974-A (MX)
Title: Fabric softener composition and methods for manufacturing and using.
Inventor: JACLYN J TILLESKJOR
IPC: C11D3/37
Filed: 2003-04-07
Abstract: A fabric softener composition is provided by melt mixing a fabric softener component and a carrier component to provide a fabric softener composition exhibiting a melting point greater than 90 degree C. The weight ratio of the fabric softener component to the carrier component can be between about 1.
Patent MX-PA04010476-A (MX)
Title: Use of polypropylene films for in-mold labeling.
Inventor: TEWS WILFRID
IPC: G09F3/02
Filed: 2003-03-28
Abstract: The invention relates to the use of a biaxially oriented microporous film, which contains a propylene polymer and at least one beta-nucleating agent and whose microporosity is produced by converting beta-crystalline polypropylene when drawing the film, in order to label containers during blow molding.
Patent MX-PA04010961-A (MX)
Title: Recording method, recording device, and recording medium.
Inventor: AKINOBU SUGINO
IPC: G11B27/32
Filed: 2003-04-22
Abstract: In a ROW-type DVD-RW medium, a DVD video file is controlled by a temporary VMGI (TMP_VMGI) and an extended file such as a JPEG file other than the DVD video file is controlled by intermediate control information (TMP_EXTI). Furthermore, empty area control information (TMP_SBM) used by UDF or the like is added to the temporary VMGI (TMP_VMGI). Thus, a DVD video file and an extended file such as a JPEG file are mixed when recorded for controlling an empty area. Even when an extended file is deleted, it is possible to know an empty area by TMP_SBM. By finalization processing, it is possible to assure compatibility with a reproduction-dedicated optical disc.
Patent MX-PA04011579-A (MX)
Title: 2-oxo-1,3,4-trihydroquinazolinyl derivatives for the treatment of cell proliferation-related disorders.
Inventor: ZHONG WENGE
IPC: A61K31/5377
Filed: 2003-05-29
Abstract: Compounds of formula (I) are effective for treatment of cell proliferation or apoptosis mediated diseases. The invention encompasses novel compounds and pharmaceutically acceptable derivatives thereof, pharmaceutical compositions and methods for prophylaxis and treatment of diseases and other maladies or conditions involving stroke, cancer and the like. The subject invention also relates to processes for making such compounds as well as to intermediates useful in such processes. Formula (I).
Patent MX-PA04011721-A (MX)
Title: Composite fiber and process for producing the same.
Inventor: AKIRA YAMASHITA
IPC: D01F8/14
Filed: 2003-05-06
Abstract: A polytrimethylene terephthalate composite fiber characterized in that it is composed of a group of single yarns united into a side-by-side structure or eccentric core-sheath structure and is made of two polyester ingredients, that at least one of the ingredients constituting the single yarns is polytrimethylene terephthalate, and that (1) the fiber is crimpy before treatment with boiling water and, the crimped fiber has a degree of stretching elongation of 20% or less, (2) the elongation at break is 25 to 100%, and (3) the extreme value of dry heat shrinkage stress is 0.01 to 0.24 cN/dtex.
Patent MX-PA04012353-A (MX)
Title: Meltblowing apparatus employing planetary gear metering pump.
Inventor: PATRICK J SAGER
IPC: D01D4/02
Filed: 2003-04-21
Abstract: Melt blown nonwoven webs are formed by supplying fiber-forming material to a planetary gear metering pump (21) having a plurality of outlets (22a-d) flowing fiber-forming material from the pump outlets through a plurality of inlets(24a-d) in one or more die cavities(25), and meltblowing the fiber-forming material. Each die cavity inlet receives a fiber-forming material stream having a similar thermal history. The physical or chemical properties of the nonwoven web fibers such as their average molecular weight and polydispersity can be made more uniform. Wide nonwoven webs can be formed by arranging a plurality of such die cavities in a side-by-side relationship. Thicker or multilayered nonwoven webs can be formed by arranging a plurality of such die cavities atop one another.
Patent MX-PA05000621-A (MX)
Title: Apparatus and method of position determination of a first mobile device using information from a second mobile device.
Inventor: HOCKLEY GEORGE
IPC: G01S5/14
Filed: 2003-07-11
Abstract: A hybrid position determination system is disclosed. A mobile device may determine a number of pseudo ranges based on a first position determination system, such as a Global Positioning System. In instances where the position of the mobile device is underdetermined because of an insufficient number of satellite pseudo ranges, the mobile device receives shard position information from other devices. The other devices include a second mobile device. The first mobile device may determine its position based on an underdetermined number of satellite pseudo ranges by determining pseudo ranges to other mobile devices. In other embodiments, the number of satellite pseudo ranges may be insufficient to generate an absolute position determination of a single mobile device. In this underdetermined condition, mobile devices may determine a common location of the group or may determine a relative positioning of members of the group.
Patent MX-PA05002699-A (MX)
Title: Immunization against autologous ghrelin.
Inventor: BOVING TINE ELISABETH GOTTSCHA
IPC: A61K39/00
Filed: 2003-09-12
Abstract: Disclosed are novel methods that generally rely on immunization against autologous ghrelin. Immunization is preferably effected by administration of analogues of autologous ghrelin, said analogues being capable of inducing antibody production against the autologous ghrelin polypeptides. Especially preferred as an immunogen is autologous ghrelin, which has been modified by introduction of one single or a few foreign, immunodominant and promiscuous T-cell epitopes. Also disclosed are nucleic acid vaccination against ghrelin and vaccination using live vaccines as well as methods and means useful for the vaccination. Such methods and means include methods for the preparation of analogues and pharmaceutical formulations, as well as nucleic acid fragments, vectors, transformed cells, polypeptides and pharmaceutical formulations.
Patent MX-PA05002709-A (MX)
Title: Locking pin for attaching a control valve to a valve stem.
Inventor: STIEHL MARK D
IPC: F16K1/00
Filed: 2003-09-09
Abstract: A process control valve included a valve stem and a valve plug (34). The valve stem and the valve plug (34) are attached to one another by an arrangement that includes a locking pin (42) that passes through substantially aligned bores (44, 46) in the valve stem and the valve plug (34). The locking pin (42) is positively retained mechanically and prevented from extending outside of the bores (44, 46) in the valve stem and the valve plug (34).
Patent MX-PA05007659-A (MX)
Title: Method of obtaining an isoprene-enriched fcc c5 fraction and selective polymerisation of isoprene from said fraction.
Inventor: SYLVIE GANDON-PAIN
IPC: C10G49/02
Filed: 2004-01-19
Abstract: The invention relates to a method whereby an initial FCC C5 fraction is used to obtain a final, purified, isoprene-enriched C5 fraction which can be used for the selective polymerisation of isoprene, and a method of obtaining a homopolymer of isoprene from a polymerisation medium comprising isoprene and at least one methyl butene, such as the aforementioned purified, isoprene-enriched FCC C5 fraction. The method of obtaining the final fraction from the initial C5 fraction comprises the following steps: a dehydrogenation reaction which is applied to an intermediate C5 fraction, said fraction comprising methyl butenes and originating from the initial fraction, and which produces the final fraction; and purification of the final fraction thus obtained in order to obtain the final, purified fraction which is virtually free of disubstituted alkynes, terminal alkynes and cyclopentadiene. Moreover, the mass fraction of methyl butenes in the intermediate fraction is < 30 %. According to the invention, the method of obtaining a hompolymer of isoprene consists in reacting a catalytic system based on a conjugated diene, a rare earth salt of a suspended organic phosphoric acid, an alkylation agent, the molar ratio (alkylation agent/salt) varying between 1 and 5, and a halogen donor, in the presence of isoprene and at least one methyl butene at a mass ratio (methyl butene(s)/isoprene) of >= 50 %,.
Patent MX-PA05009735-A (MX)
Title: Shopping bag handle.
Inventor: MOSES JOEL V
IPC: A45F5/10
Filed: 2004-02-25
Abstract: A strap includes an elongate sheet of material with two end portions and a central portion. Each of the end portions is provided with a hook dimensioned and configured to receive the plastic handles of a shopping bag or the like. The strap may be plastic injection molded. The strap may be uniform thickness or may be selectively reduced in thickness to save material and weight in those regions where the extra material is not essential to the integrity of the strap. A hinge is provided between the central and end portions to allow the end portions to deflect or bend out of the plane of the central portion under the weight of supported bags. This allows the bad holder to respond to the weight of the bags while maintaining the central portion substantially flat to avoid excessive bending and possible compression and pain to the hand of the user.
Patent MX-PA05010187-A (MX)
Title: Forming evacuation channels during single and multi-layer extrusion process.
Inventor: HONGYU WU
IPC: B29C48/08
Filed: 2004-03-18
Abstract: A method for making a vacuum packaging film includes flowing a plastic melt, from a multi-layer extruder, onto a rotating roller. The plastic melt is then cooled while simultaneously imparting a pattern, via a pattern imparting means, onto the plastic melt resulting in the vacuum packaging film.
Patent MX-PA05010223-A (MX)
Title: Extensible user context system for delivery of notifications.
Inventor: RANDALL K WINJUM
IPC: G06Q10/10
Filed: 2003-05-15
Abstract: A system (200) for controlling the delivery of notifications. The system brokers and serializes the delivery of notifications (206) from multiple sources. In addition, a shared notion of user context is provided, for determining the appropriate handling for each of the notifications. In one embodiment, a user context consists of a condition that may be true or false, and an instruction that is to be followed if the condition is true. For example, if a user is listening to music, the instruction may be to show the notification on the screen but not play any sound for the notification. A user's contexts are declared by the operating system and arbitrary programs(204). The user's contexts may be presented to the user for modification in accordance with the user's preferences (204). The user may also define rules, which dictate how notifications that contain specified elements should be handled (204), and may provide exceptions to the instructions of the user's contexts.
Patent MX-PA06001984-A (MX)
Title: Systems and methods for interfacing application programs with an item-based storage platform.
Inventor: LI JIAN
IPC: G06F17/30
Filed: 2003-08-21
Abstract: Various embodiments of the present invention are directed to a storage platform (figure 20) comprising: a data store in which data stored therein is defined in terms of items, elements, and relationships (figure 20, 2014), wherein an item is a unit of data storable in the data store and comprises one or more elements, an element is an instance of a type (figure 20, 2016) comprising one or more fields, and a relationship is a link between at least two items; a set of schemas (figure 20, 2014) that define different types of items, elements, and relationships (figure 20, 2016); and an application programming interface (figure 20, 350a, 350b, or 350c) comprising a class (figure 20, 2008) for each of the different items, elements, and relationships defined in the set of schemas. Data may also be stored in the data store in the form of an extension to an existing item type, and wherein the application programming interface comprises a class for each different item extension (figure 20, 2006).
Patent MX-PA06008958-A (MX)
Title: Culture media compositions free of fetal bovine serum.
Inventor: O'DALY JOSE ANTONIO
IPC: C12N1/00
Filed: 2005-02-04
Abstract: A cell culture growth media free of Fetal Bovine Serum for use with parasitic organisms. The media includes calcium chloride, sodium bicarbonate, potassium chloride, sodium chloride, monosodium phosphate, glucose, hepes, ferric nitrate, magnesium sulfate, tricine, d-ribose, 2-deoxy ribose, adenosine-5-triphosphate (ATP), 2-deoxyadenylic acid (d-AMP), 5'-thymidylic acid (TMP), 2'-deoxyicitidine-5 monophosphate (d, 2'-deoxyuridine-5-monophosphate (d, 2'-deoxyguanilic Acid (d-GMP), aspartic acid, glutamic acid, l-alanine, arginine, carnosine, cysteine, cystine, glutamine, glycine, histidine, iso-leucine, leucine, lysine, methionine, ornitine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, ascorbic acid, biotine (H), carnitine, cholecalciferol, choline chloride, cyanocobalamine (B12), ergocalciferol, folic acid, myo-inositol, menadione, nicotinamide, PABA, panthotenato, pyridoxal, pyridoxamine, pyridoxine, retinol (A), riboflavine (B2), Thiamine (B1), 6,8 Thiotic acid, alfa-tocoferol, 3-phytylmenadione (K1), tetrahydrofolic acid, hemin from procine, and nanopure water.
Patent MX-PA06011952-A (MX)
Title: Method of modulating vascularization.
Inventor: RUFF WOLFRAM
IPC: A61F13/15
Filed: 2005-04-15
Abstract: A method of modulating vascularization in a tissue of a mammal comprises controllinga PAR signaling pathway (e.g., the PAR-1 or PAR-2 signaling pathway) in a mammaliantissue, for example, by controlling phosphorylation of tissue factor cytoplasmicdomain (i.e., phosphorylation of Ser258 of the cytoplasmic tail ofTF). In a preferred method pathological neovascularization in a mammal is treatedby administering to a mammal suffering from pathological neovascularization,a therapeutically effective amount of a PAR signaling pathway inhibitor. Preferablythe mammal is a human.
Patent MX-PA06012230-A (MX)
Title: Wireless communication fuse state indicator system and method.
Inventor: ACKERMANN JOHN MARVIN
IPC: H01H9/16
Filed: 2005-04-14
Abstract: An electrical fuse and method therefor includes a protective body, terminal elements extending from said protective body, and a primary fuse element extending within said protective body and electrically connected between the terminal elements, and an identification element configured to transmit a wireless signal to a remote device for determining an operational state of said primary fuse element.
Patent MX-PA06012919-A (MX)
Title: Electrolytic cell comprising multilayer expanded metal electrodes.
Inventor: SCHROTT WOLFGANG
IPC: C25B9/19
Filed: 2005-05-04
Abstract: The invention relates to an electrolytic cell comprising planar anodes and cathodes which are separated from each other by means of separators, are disposed in a cell trough or in several electrode frames that are braced together, and are electrically connected in a monopolar or bipolar manner. The inventive electrolytic cell is characterized in that the cathodes and/or anodes are configured as multilayer expanded metal electrodes that are composed of at least two expanded metal layers which are in contact with each other via internal resistance paths while being penetrated by the electrolyte solutions in a longitudinal direction. Also disclosed is the use of said electrolytic cell for the cathodic reduction or anodic oxidation of organic or inorganic compounds.
Patent MX-PA06014981-A (MX)
Title: Retracting devices.
Inventor: HAYMAN ROBERT
IPC: A61C5/90
Filed: 2005-06-30
Abstract: The present invention relates to a retracting device for retracting at leasta portion of a user s mouth. The retracting device includes formations,which may be inter-engaging and/or non-inter-engaging with other dental toolsor apparatus. The formations are adapted for repeatably positioning a subject smouth with respect to a light system, and/or an imaging film, and/or a dental tray.
Patent MY-104296-A (MY)
Title: Scroll compressor
Inventor: MICHIO YAMAMURA
IPC: F04C18/04
Filed: 1988-03-11
Abstract: THE PRESENT INVENTION PROVIDES A LOW- PRESSURE SCROLL COMPRESSOR FOR USE IN A REFRIGERATING SYSTEM OF AN AIR CONDITIONING APPARATUS OR THE LIKE. LUBRICATING OIL IS INTERMITTENTLY SUPPLIED TO A COMPRESSOR UNIT IN PROPORTIONAL RELATION TO THE ROTATING NUMBER OF THE MOTOR, AVOIDING AN EXCESSIVE OR INSUFFICIENT SUPPLY OF A LUBRICATING OIL AND REALIZING A PROPER SUPPLY OF THE LUBRICATING OIL EVEN HIGH- SPEED ROTATION OF THE MOTOR. THUS THE COMPRESSOR IS HIGHLY RELIABLE. FURTHER, A SCREENING PLATE IS PROVIDED IN THE SUCTION SPACE OF A COMPRESSOR SO THAT THE LUBRICATING OIL IN THE COOLANT OR COOLING MEDIUM CAN BE EFFECTIVELY SEPARATED FROM THE COOLANT, RESULTING IN ENHANCEMENT OF COLLECTING EFFECIENCY OF THE LUBRICATING OIL. MOREOVER, THE SCREENING PLATE IS USEFUL TO PREVENT A HERMETIC TERMINAL FROM BEING COOLED BY THE RETURNING COOLANT. OTHERWISE, DEW CONDENSATION WOULD OCCUR ON THE HERMATIC TERMINAL, AND LEAKAGE OR SHORTCIRCUITING WOULD BE CAUSED, A VITAL OBSTACLE TO THE SAFETY OF THE COMPRESSOR. (FIG. 1)
Patent MY-113274-A (MY)
Title: Omeprazole magnesium salt form
Inventor: KALLSTROM LARS AKE
IPC: A61K31/44
Filed: 1994-07-07
Abstract: A NOVEL COMPOUND FORM OF MAGNESIUM OMEPRAZOLE USEFUL IN THE MANUFACTURE OF PHARMACEUTICAL FORMULATIONS, THE USE OF THE PRODUCT AND THE PROCESS FOR ITS PRODUCTION ARE DISCRIBED.
Patent MY-113603-A (MY)
Title: Method of searching for a bursty signal
Inventor: JEFFREY A LEVIN
IPC: H04L1/02
Filed: 1996-04-22
Abstract: AN INTEGRATED SEARCH PROCESSOR USED IN A MODEM FOR A SPREAD SPECTRUM COMMUNICATIONS SYSTEM BUFFERS RECEIVED SAMPLES AND UTILIZES A TIME SLICED TRANSFORM PROCESSOR OPERATING ON SUCCESSIVE OFFSETS FROM THE BUFFER. THE SEARCH PROCESSOR AUTONOMOUSLY STEPS THROUGH A SEARCH AS CONFIGURED BY A MICROPROCESSOR SPECIFIED SEARCH PARAMETER SET, WHICH CAN INCLUDE THE GROUP OF ANTENNAS TO SEARCH OVER, THE STARTING OFFSET AND WIDTH. OF THE SEARCH WINDOW TO SEARCH OVER, AND THE NUMBER OF WALSH SYMBOLS TO ACCUMULATE RESULTS AT EACH OFFSET. THE SEARCH PROCESSOR CALCULATES THE CORRELATION ENERGY AT EACH OFFSET, AND PRESENTS A SUMMARY REPORT OF THE BEST PATHS FOUND IN THE SEARCH TO USE FOR DEMODULATION ELEMENT REASSIGNMENT. THE SEARCH IS DONE IN A LINEAR FASHION INDEPENDENT OF THE PROBABILITY THAT A SIGNAL BEING SEARCHED FOR WAS TRANSMITTED AT ANY GIVEN.TIME.
Patent MY-125219-A (MY)
Title: Optical disc playback apparatus and optical disc playback method
Inventor: JIRO YAMADA
IPC: H04N5/91
Filed: 2000-06-09
Abstract: THE PRESENT INVENTION PROVIDES OPTICAL DISC PLAYBACK APPARATUS (DVD-UNIVERSAL PLAYERS) WHICH CAN PLAY BACK ALL ATSS AND VTSS. THE OPTICAL DISC PLAYBACK APPARATUS ACCORDING TO THE PRESENT INVENTION COMPRISES READING MEANS FOR READING AUDIO/VIDEO DATA, AUDIO/VIDEO SEQUENCE INFORMATION (76), OBJECT POSITION INFORMATION (75), TITLE SET POSITION INFORMATION AND DISC MANAGEMENT INFORMATION FROM AN OPTICAL DISC (20), TO PLAY BACK THE DATA, CONTROL MEANS FOR CONTROLLING THE READING MEANS, STORAGE MEANS (16) WHICH, WHEN THE DISC IS RECOGNIZED AS A DVD-AUDIO DISC, CONTAIN AN AMG (60), FURTHER SEARCH A VMG (40) AND WHEN THERE IS A VMG (40), SIMULTANEOUSLY CONTAIN ALSO THE VMG (40), AND, EXTERNAL INPUT RECEIVING MEANS FOR RECEIVING INSTRUCTIONS OF USERS FROM OUTSIDE, FOR SELECTING ONE OF THE AMG (60) AND THE VMG(40). (FIG. 1)
Patent MY-122682-A (MY)
Title: System and method for performing context switching and rescheduling of a processor
Inventor: DENT PAUL W
IPC: G06F9/46
Filed: 2000-06-16
Abstract: SYSTEM FOR SWITCHING RESOURCES OF A COMPUTER AMONG A PLURALITY OF PROGRAMS IS PROVIDED, INCLUDING A PROCESSOR FOR EXECUTING PROGRAMS FOR THE COMPUTER. THE SYSTEM FURTHER INCLUDES A SET OF REGISTER BANKS COUPLED TO THE PROCESSOR FOR STORING INFORMATION FOR THE PLURALITY OF PROGRAMS, WHERE EACH REGISTER BANK INCLUDES A PLURALITY OF PROGRAM INFORMATION REGISTERS IN CORRESPONDENCE WITH THE PLURALITY OF PROGRAMS, THE SET OF REGISTER BANKS HAVING A SELECTION INPUT FOR SELECTING A CURRENT PROGRAM FOR THE PROCESSOR TO EXECUTE. A STATUS REGISTER IS COUPLED TO THE PROCESSOR FOR STORING IN A PRIORITIZED ORDER A STATUS BIT CORRESPONDING TO EACH PROGRAM, WHERE EACH STATUS BIT HAS A STATUS BIT ADDRESS AND INDICATES A STATUS OF THE CORRESPONDING PROGRAM AS BEING ONE OF ACTIVE AND INACTIVE. EACH LOCATION OF THE STATUS REGISTER IS CONNECTED TO A PROGRAM DETERMINATION LOGIC CIRCUIT FOR DETERMINING THE STATUS BIT ADDRESS OF A HIGHEST PRIORITY ACTIVE PROGRAM. THE PROGRAM DETERMINATION LOGIC CIRCUIT IS COUPLED TO THE SET OF REGISTER BANKS FOR PROVIDING THE STATUS BIT ADDRESS OF THE HIGHEST PRIORITY ACTIVE PROGRAM TO THE SELECTION INPUT, WHERE THE HIGHEST PRIORITY ACTIVE PROGRAM IS SELECTED AS THE CURRENT PROGRAM.
Patent MY-124499-A (MY)
Title: Method for manufacturing semiconductor chips
Inventor: TOSHIHIKO ISHIKAWA
IPC: H01L21/78
Filed: 2000-11-02
Abstract: IN A PROCESS OF MANUFACTURING SEMICONDUCTOR CHIPS (C), FIRST, THE REVERSE OF A WAFER (W), ON THE OBVERSE OF WHICH MANY CHIPS (C) ARE FORMED, IS GROUND SO AS TO SHAPE THE WAFER (W) WITH A PREDETERMINED THICKNESS. THEN, THE REVERSE OF THE WAFER (W) IS POLISHED OR ETHCED SO THAT THE BROKEN LAYER WHICH IS FORMED DURING THE BACK GRINDING IS REMOVED. NEXT, GROOVES (G) ARE FORMED ON THE REVERSE OF THE WAFER (W) IN A PREDETERMINED DEPTH ALONG STREETS (S) FORMED BETWEEN THE CHIPS (C). FINALLY, THE WAFER (W) IS CLEFT ALONG THE GROOVES (G) SO AS TO BE DIVIDED INTO SEPARATE CHIPS (C). BY THIS PROCESS, THE BROKEN LAYER FORMED ON THE REVERSE OF THE WAFER (W) IS REMOVED AFTER THE BACK GRINDING, THEN THE WAFER (W) IS DIVIDED INTO SEPARATE CHIPS (C) BY USE OF THE CLEAVAGE; THEREFORE, CHIPPING IS EFFECTIVELY REDUCED. (FIGURE 1)
Patent MY-133763-A (MY)
Title: Ion conducting ceramic membrane and surface treatment
Inventor: WEITUNG WANG
IPC: C01B13/02
Filed: 2001-03-19
Abstract: THE PRESENT INVENTION PROVIDES AN ION CONDUCTING CERAMIC MEMBRANE SELECTIVELY PREMEABLE TO A GAS, FOR INSTANCE OXYGEN AND A METHOD OF TREATING SUCH A MEMBRANE TO IMPROVE PERMEATION THROUGH THE MEMBRANE. THE MEMBRANE IS FORMED BY A MASS OF A SUBSTANCE THROUGH WHICH IONS OF THE GAS MIGRATE.THE MASS HAS TWO OPPOSED SURFACES WHERE DISSOCIATION AND IONIZATION OF THE GAS OCCURS AND GAS IONS RELEASE ELECTRONS AND RECOMBINE TO FORM MOLECULES OF THE GAS, RESPECTIVELY. AT LEAST ONE OF SAID TWO OPPOSED SURFACES IS TREATED BY A REMOVAL OF SURFACE MATERIAL TO PRODUCE SURFACES IRREGULARITIES OF INCREASED AREA AND THEREFORE AN INCREASE IN TOTAL SURFACE AREA OF A TREATED SURFACE TO INTURN INCREASE PERMEATION OF THE GAS.PREFERABLY, BOTH SURFACES OF THE MEMBRANE ARE TREATED BY CHEMICAL ETCHING TECHNIQUES, ALTHOUGH SAND BLASTING AND ION ETCHING ARE OTHER POSSIBLE SURFACE TREATMENTS IN ACCORDANCE WITH THE PRESENT INVENTION.@FIG.2