baber/WOPTO huggingface dataset:
Patent KR-970009855-B1 (KR)
Title: Forming method of silicon layer widened surface area
Inventor: KIM JAE-KAP
IPC: H01L27/04
Filed: 1992-10-09
Granted: 1997-06-18
Abstract: A forming method of a silicon layer used for a stacked capacitor of high density semiconductor devices is provided to improve capacitance of the capacitor. The method comprises the steps of: forming a first silicon layer(2) on an insulating layer(1); forming a nitride layer(6) on the first silicon layer(2); forming a thermal oxide layer(8) on a portion of the first insulating layer(2); etching the remained nitride layer(6) and a portion of the first silicon layer(2) using the thermal oxide layer(8) as a mask; and forming a second silicon layer(3) having convex and concave by etching the thermal oxide layer(8). Thereby, it is possible to maximize the surface area of the silicon layer.
Patent KR-950011851-B1 (KR)
Title: Method for manufacturing cup type vessel and apparatus thereof
Inventor: SONG WAN-HUI
IPC: B31B1/00
Filed: 1992-10-16
Granted: 1995-10-11
Abstract: The appts. for continuously producing a cup-type paper vessel comprises a unit (A) for supplying a paper sheet one by one, an embossing mold unit (B) installed slantwise next to the paper supplying unit, a transporting unit (C) for the embossed sheet, a unit (D) for spreading adhesive on the brim of sheet, a transporting unit (E) for the embossing cover, a unit (F) for spreading adhesive on the outside wall of the inner cup, a transporting unit (H) for the finished vessel, a second press unit (K) for pressing the embossing cover (N) with the inner cup, a discharging unit (G) for the inner cup and a first press unit (J) located opposite to the second press unit.
Patent KR-100257128-B1 (KR)
Inventor: KUBO MITSUNORI
IPC: G06K7/10
Filed: 1992-11-09
Granted: 2000-05-15
Abstract: 본 발명은 바아코드심볼의 유무를 자동인식하여 자동으로 판독을 개시하도록 한 심볼정보 판독장치에 관한 것으로서, 2차원 촬상장치(5)에 의해 촬상된 바아코 바아코드 심볼이 프레임메모리(6)에 기억되며, 데이터처리장치(7)는 이 기억된 정보를 토대로 바아코드심볼의 유무를 자동인식하고, 바아코드심볼의 존재가 인식되면 2차원촬상장치(5)의 광전변환면(4) 상에 투영되어 있는 바아코드심볼의 정보를 순차적으로 판독하여 원래의 정보로 복호하는 것이다.
Patent KR-950007460-B1 (KR)
Title: Reset circuit
Inventor: UM YUN-SOP
IPC: H03K17/16
Filed: 1992-11-23
Granted: 1995-07-11
Abstract: The circuit comprises a part for charging or discharging a power voltage, a clock generator(66) for generating a system clock to supply to microprocessor, a voltage divider(63) for dividing the power voltage to set the first reference voltage, a voltage comparator(64) for comparing a discharging voltage with the first reference voltage to output the first comparing signal, a pulse shaper(65) for comparing the first comparing signal with the second reference voltage to shape pulse, and a synchronizer(67) for synchronizing pulse-shaped signal to the system clock to generate a reset signal to send to the microprocessor(67).
Patent KR-950005627-B1 (KR)
Title: Plasma display panel
Inventor: KWON HYOK-JAE
IPC: H01J11/46
Filed: 1992-12-31
Granted: 1995-05-27
Abstract: The panel attachs a number of resistors(4) with a unique resistance on the plasma display panel simultaneously. The panel comprises resistors(4) made of silicon dioxide and sodium hydroxide between discharge electrode(2) and lead electrode(3) simultaneously, after forming discharge electrode(2) and lead electrode(3) made of nickel on the plasma display panel.
Patent KR-100186837-B1 (KR)
Inventor: BAGLEY CLOV J
IPC: F42B/
Filed: 1990-07-10
Granted: 1999-05-01
Abstract: 미사일 방향 조정용 측면 추력 조립체는 외향으로 향한 노즐의 환형 배열체를 포함하고, 각 노즐은 노즐밖으로의 추진체 가스의 흐름을 차단하는 해제가능한 플러그를 포함한다. 
     각 플러그와 합체된 플러그 해제기구는 각 노즐을 개방하도록 플러그를 해제시킨다. 
     추진제를 함유하는 연소실은 모든 노즐의 내단부에 연결되어 있다. 
     추진제는 하나 이상의 선택된 플러그가 함체된 노즐을 개방시키고 항공체에 적용된 측면 추력 방향을 제어하도록 해제될때 점화된다.
Patent KR-100190772-B1 (KR)
Inventor: LIU MING-BIANN
IPC: C07B61/00
Filed: 1992-01-27
Granted: 1999-06-01
Abstract: 아미노페놀성 화합물은 인산과 같은 산의 존재하에 수용액증에서 할로-니트로-페놀성 화합물(예 : 2-클로로-4,6-디디트로레소르시놀)을 수소화제(예 : 수소) 및 촉매(예 : 탄소상팔라듐)와 접촉시켜 합성할 수 있다.  수성 매질중에서의 환원 반응은 유기 매질중에서의 환원 반응보다 안전하며 비용면에서도 효과적이다. 산은 수성 매질중에 용해된 산소에 의한 다량체의 산화를 방지한다. 본 발명의 공정을 이용하여 아미노페놀을 4,6-디아미노레소르시놀로서 합성할 수 있다.
Patent KR-950007328-B1 (KR)
Title: Load and unload equipment of airslip mold graphite ring
Inventor: KIM YONG-TAE
IPC: B22D17/00
Filed: 1993-02-09
Granted: 1995-07-10
Abstract: a power unit including a pully, a belt and a motor and rotating/suspending a rotatory plate by turning on/off a motor control switch; a timer for providing a solenoid open/close control signal and a buzzer signal at every predetermined time by applying power; a solenoid valve controlled by the timer so as to open and close a fuel gas tube for a torch; a gas reservoir for supplying a fuel gas to the fuel gas tube; a regulator for regulating the distribution of the fuel gas; a buzzer for informing the completion of a work when the solenoid valve is closed by the timer; and a timer switch for controlling the drive of the timer.
Patent KR-960009330-B1 (KR)
Title: Sticking method of interior tile for building
Inventor: LEE JOO-YOUNG
IPC: E04F13/08
Filed: 1993-03-18
Granted: 1996-07-18
Abstract: making many fixing holes(1) on the wall and fitting anchor-screws(2) in the holes; fixing one end of 'L'-shaped bolts(5) in the anchor-screws(2) by screw nails(3); inserting the bolts(5) in the screw holes(6) and assembling the holder plates(10); fitting the bended parts(11) of the supporting bars(13) with the holding hooks(8) of the holder plates(10); and hooking the fitting part(16) of the tile-panel(14) onto the fixing hooks(12).
Patent KR-100261992-B1 (KR)
Inventor: SONG MYONG-SUB
IPC: H01L21/302
Filed: 1993-03-19
Granted: 2000-08-01
Abstract: PURPOSE: A method for forming a micro line width of a semiconductor device is provided, which is appropriate for forming a micro pattern of a polysilicon. CONSTITUTION: After forming a gate oxide(12) on a silicon substrate(11) by a thermal oxidation, a polysilicon or a WSi2/polysilicon layer(13) is deposited and then a CVD oxide(14) is deposited. The thickness of the CVD oxide is at least above 1000 angstrom. A photoresist(PR) is coated and a PR pattern(15') is formed by exposing and developing the photoresist. The first CVD oxide pattern is formed by dry-etching the CVD oxide using the PR pattern as a mask, and then the photoresist is removed and plasma is removed, and is cleaned using NH4OH:H2O2:H2O(40 deg.C) to scale down the first CVD oxide pattern. Then, a micro line width can be obtained by etching the polysilicon layer by a dry etching apparatus using the second CVD oxide pattern as a mask.
Patent KR-970000722-B1 (KR)
Title: Method for fomation and oxide tantalium thin film
Inventor: KIM HYUNG-JOON
IPC: H01L29/78
Filed: 1993-06-08
Granted: 1997-01-18
Abstract: A method of forming Ta2O5 thin film is provided which includes the steps of heating Ta(C2H5O)5 which is a material of Ta in order to maintain a steam pressure of above 0.1Torr, supplying the Ta(C2H5O)5 and an oxydizing agent, N2O gas, O2 or mixture of them, to a vacuum chamber, and generating plasma in the vacuum chamber while heating a substrate up to a temperature of above 150deg., thereby forming Ta2O5 thin film according to the chemical reaction. Ta2O5 thin film having a high dielectric constant can be effectively formed.
Patent KR-960014227-B1 (KR)
Title: Line test auto measuring system
Inventor: KIM BYUNG-DOO
IPC: H04M3/24
Filed: 1993-08-31
Granted: 1996-10-14
Abstract: The system includes a test sample(90) for testing a network connection property by using a sample, a communication network measurement means having several measurement devices at the measuring time, an measurement information input/output means for generating measurement data, a controlling means(150) for controlling measurement and output after selection of program, and a switching means(100-1,100-2) for switching and connecting measurement device with sample or input/output means.
Patent KR-960009004-B1 (KR)
Title: Fermented milk preparations having se and the preparation process thereof
Inventor: HWANG JONG-HYUN
IPC: A23C9/13
Filed: 1993-09-01
Granted: 1996-07-10
Abstract: The preparation method for yogurt (I) enriched with organic selenium (II) consists of (1) culturing Saccharomyces yeasts (III) in the medium containing sodium selenite (IV), (2) drying (III), (3) preparaing (I) with one of Lactobacillus bulgaricus or Streptococcus thermophilus in the milk containing (III) of 0-600 microgram (IV) per liter or (4) preparaing (I) with one of Lactobacillus acidophilus in the milk containing (III) of 0-500 microgram (IV) per liter. The type of (I) is yogurt or dried lactic acid powder for health food.
Patent KR-960013331-B1 (KR)
Inventor: SANDO YOSITERU
IPC: C02F1/52
Filed: 1993-09-09
Granted: 1996-10-04
Abstract: 내용 없음.
Patent KR-0152673-B1 (KR)
Inventor: YOSHIKAWA NOBUHISA
IPC: H05B41/04
Filed: 1993-09-24
Granted: 1998-10-01
Abstract: 본 발명은 형광램프를 1회의 시동펄스에 의해서 확실히 시동할 수 있는 형광램프점등장치에 관한 것으로서, 그 구성에 있어서, 교류전원(1)에 접속되어야 할 안정기(2)와 예열전극부착형광램프(3)의 직렬회로와, 상기 형광램프의 비전원측예열전극(4)(5)간에 다이오드(6)를 개재해서 콜렉터와 이미터를 접속한 트랜지스터(7)와, 상기 트랜지스터의 콜렉터-이미터간의 전압에 의해서 동작하는 저항(8)과 콘덴서(10)를 가진 타이머회로(11)와, 상기 타이머회로(11)의 상기 저항(8)에 발생하는 전압의 일부와 상기 콘덴서(10)의 전압과의 가산전압에 의해서 상기 트랜지스터(7)를 스위칭하는 트랜지스터베이스구동제어수단(15)을 구비한 것이다.
Patent RO-118443-B1 (RO)
Title: Emulsifiable concentrate for dismantling concretes
Inventor: ALEXANDRESCU CONSTANTIN
IPC: C10M101/02
Filed: 2000-10-06
Abstract: The invention relates to an emulsifiable concentrate for dismantling concretes. According to the invention, the emusifiable concentrate consists of 45...55% naphtenic oil with the kinematic viscosity of 12...16 cSt, at a temperature of 50°C, 18...25% sodium sulphonate with minimum 45% sodium sulphonate and maximum 10% water, 5...9% non-ionic surfactant as nonyl phenol-polyglycol ether ethoxylated with 6 moles of ethylene epoxide and 15...25% naphtenic lye with a water content of maximum 70%, the percentages being expressed by weight.
Patent RO-123269-B1 (RO)
Title: Use of sodium meta-arsenite for the treatment of solid tumours
Inventor: LEE SANG BONG
IPC: A61K33/36
Filed: 2002-04-10
Abstract: The invention relates to the use of sodium meta-arsenite in the preparation of pharmaceutical compositions for the treatment of solid tumours, such as colon tumour, gastric tumour, mammary tumour, ovarian tumour, prostate tumour and renal tumour.
Patent RO-126199-B1 (RO)
Title: Locking system for shutters of two-axle tippers
Inventor: PIRNĂ ION
IPC: B62D33/00
Filed: 2009-10-26
Abstract: The invention relates to a locking system for the shutters of two-axle tippers transporting tipple discharging materials. According to the invention, the locking system comprises a securing plate (1) welded to the front shutter of a tipper, through whose slot there passes a special screw (2) on which a special nut (3) is screwed on one end, either by means of a hexagonal wrench having an opening (s), or by means of a mandrel having a diameter (φ), the other T-shaped end being fixed to the side shutter by two ears (5) welded thereto, wherethrough a bolt (4) is mounted.
Patent RO-126436-B1 (RO)
Title: Apparatus for verifying bore gauge meters and parts in the field of linear lengths (), outside diameters () and inside diameters ()
Inventor: MARIN CORNELIU
IPC: G01B5/08
Filed: 2011-01-18
Abstract: The invention relates to an apparatus for individually checking some bore gauges included in a kit and by means of which there are measured lengths, outside and inside diameters. According to the invention, the apparatus comprises a cylindrical-shaped body (7) whose thickness is at least equal to the width of a feeler of a bore gauge (5) to be checked, having in the centre the shape of an overturned equilateral triangle, with the apex inclined leftwards, which is the "zero" point, whose plane sides are measuring surfaces, the apex and the bisector- the latter being the axis of the apparatus - meeting in a point on the face of an anvil (2) whereto there is fastened a nut (1) and which is the "zero" point, in relation to which the initial adjustments and later verifications are performed, on an axis to the right there being placed a mobile mandrel (8) with a face plane parallel to the face of an anvil (2) which is the point "zero", which may be moved manually to the left or to the right with a clutch nut (9) with a micro-metric screw or a screw with digital display, a guide piece (11) centering the bore gauge (5) subjected to verification on the axis of a blocking handle (10) fixing the desired size, some insulating plates (3) thermally insulating the bore gauge (5) having an actuation cone (6) and some equidistant feelers (4) subjected to verification.
Patent RS-54442-B1 (RS)
Inventor: SCARPA SIGFRIDO
IPC: A61P25/28
Filed: 2009-02-25
Abstract: Upotreba S-adenozilmetionina (SAM) u kombinaciji sa superoksid dismutazom (SOD) za pripremu lekova za lečenje Alchajmerove bolesti.Prijava sadrži još 4 patentna zahteva.
Patent SA-109300437-B1 (SA)
Inventor: TSANG ALBERT C
IPC: C10J1/207
Filed: 2009-07-04
Abstract: الملخص: يتعلق الاختراع الحالي بنظام وعملية لتغويز خام تغذية مثل المواد الكربونية carbonaceous materials . يتضمن الاختراع احتراق جزئي partial combustion للمواد الصلبة الجافة dry solids وتحليل ملاط المادة الكربونية بالحرارة pyrolysis of carbonaceous material slurry في قطاعين منفصلين من المفاعل والحصول على نواتج خليط مشتملة على غاز التخليق synthesis gas . يستخدم الاختراع واحدة أو أكثر من الطبقات الحفزية أو الماصة catalytic or sorbent bed لإزالة القطران removing tar من غاز التخليق. هذا ويسمح النظام والعملية المبتكرة بإجراء عملية تغويز في ظل معدل تغذية بملاط عال ودرجة حرارة منخفضة شريطة أن يتم التصرف في القطران المنتج، وعلى هذا، تتم زيادة كفاءة تحويل عملية التغويز ككل. شكل 1 .
Patent SA-111320102-B1 (SA)
Inventor: GILABERTE RAUL NAVIO
IPC: F24S10/70
Filed: 2011-01-12
Abstract: يتعلق الاختراع الحالي جهاز استقبال طاقة شمسية solar receiver يعمل بملح منصهر molten salt وإجراء لتقليل تدرج درجة الحرارة في جهاز الاستقبال receiver المذكور. يتكون جهاز الاستقبال من لوح panel واحد على الأقل له شكل هندسي شبه اسطواني semi cylindrical ، يتم تشكيله بواسطة مجموعة من الأنابيب الرأسية vertical pipes . يتم تزويد جهاز الاستقبال (10) بمائع ناقل للحرارة heat transfer fluid متكون من أملاح منصهرة molten salts تنتج من نظام إعادة تدوير يتكون من مستودع خليط mixture deposit (6)، صهريج لتخزين الملح الساخن hot salt storage tank (9) وصهريج لتخزين الملح البارد cold salt storage tank (8)، ويتم تزويد صهريج الخليط mixture tank (6) بجزء من مائع نقل حرارة ساخن hot heat transfer fluid (4) يخرج من جهاز الاستقبال (10) و مائع نقل حرارة بارد (5) يخرج من صهريج تخزين الملح البارد (8)؛ ويتم توصيل صهريج لتخزين الملح الساخن hot salt storage tank بمخرج جهاز الاستقبال (10) بحيث يتم تخزين جزء من مائع نقل الحرارة heat transfer fluid الذي لم يتم إعادة تدويره (3).
Patent SA-515360020-B1 (SA)
Title: Polyester polyol
Inventor: PRITCHARD SUSAN
Filed: 2015-02-09
Abstract: A coating composition having a solids content of greater than 70% by weight and/or a Volatile Organic Content (VOC) of less than 250 g/l, comprising a novel polyester polyol and a curing agent, wherein the coating composition is capable of curing at ambient temperature, and which provides a coating having excellent durability.
Patent SA-516380345-B1 (SA)
Title: Submersible Electrical System Assessment
Inventor: EMMANUEL COSTE
Filed: 2016-11-21
Abstract: A method can include receiving sensor information from at least one sensor disposed in a downhole environment that includes an electric submersible pump operatively coupled to a power drive via a cable; receiving electrical information associated with transmission of power via the cable; and identifying a state of the electric submersible pump via an adaptive model of at least the cable and the electric submersible pump based at least in part on a portion of the sensor information and a portion of the electrical information. Fig 10.
Patent SA-517390280-B1 (SA)
Title: Drilling Installation; Handling System, Method for Independent Operations
Inventor: JOSEPHUS LEONARDUS ALOYSIUS MARIA VAN DER HOORN
Filed: 2017-11-02
Abstract: Drilling installation comprising a cantilever with a drilling floor for performing drilling operations; further comprising an independent operations handling system arranged for handling equipment underneath the drilling floor independent of the drilling operations on the drilling floor, wherein the independent operations handling system comprises a handling element for cooperation with the equipment to be handled, wherein the handling element is extendible underneath the cantilever. Fig. 12.
Patent SA-518391075-B1 (SA)
Title: Maleic Anhydride Polymers and Methods of Treating Subterranean Formations
Inventor: B RAGHAVA REDDY
Filed: 2018-03-06
Abstract: This document relates to compositions including a maleic anhydride copolymer or a salt thereof and an amine crosslinker. The maleic anhydride copolymer includes repeat units I and II: and . I II Each R1 is independently selected from the group consisting of –H, –O(C1-C5)alkyl, and –(C1-C5)alkyl. Each R2 is independently selected from the group consisting of –H, –O(C1-C5)alkyl, and –(C1-C5)alkyl. The maleic anhydride copolymer further includes at least one hydrolyzed repeat unit selected from repeat units III and IV: and . III IV
Patent SA-521430570-B1 (SA)
Title: Lowering mechanism for hand held jacking tool
Inventor: RESCH ØYVIND
Filed: 2021-10-12
Abstract: Lowering mechanism for a hand held jacking tool comprising a caulking gun jacking mechanism. The lowering mechanism comprises a lowering plate (4) on top of the holding plate (2), a pushing lever (5) connected with a hinge attachment (6) to the lowering plate at a rear end, wherein the pushing lever is pivoting around a pivot structure (8) connected to the lever or holding plate a distance backward from the hinge attachment, causing the lowering plate (4) to grip the jacking shaft (3) when the lever is pushed downwards and then, in turn, pushing the holding plate downwards and loosening it from the jacking shaft and moving it down along the jacking shaft a distance determined by the pivoting action of the lever. The lowering plate is held in place by a spring (9) biasing the lowering plate towards the holding plate. (Fig. 3)
Patent AU-2020200215-B1 (AU)
Title: Self-Drilling Screw
Inventor: SU KOU-TSAIR
IPC: F16B25/00
Filed: 2020-01-10
Abstract: A self-drilling screw (3) includes a leading section (33) having 
a drill body (331) and opposite discharge grooves (332) formed on 
the drill body (331). The drill body (331) and the discharge grooves 
5 (332) meet at cutting edges (333). On the drill body (331) are formed 
two blade portions (3331) connected to the cutting edges (333) and 
tapering at respective second tips (3331a). The blade portion (3331) 
has a second included angle (a2) of not more than 50 degrees. Between 
the blade portions (3331) is formed a drilling portion (3311) 
0 terminating at a first tip (3311a) and having a first included angle 
(al) of not more than 60 degrees. Two opposite concave surfaces (334) 
each extend from the drilling portion (3311) to each blade portion 
(3331). The first tip (3311a) and the second tips (3331a) are situated 
at different places. Accordingly, the end of the leading section (33) 
5 presents a shape of a curved bow riser to cut quickly and help quick 
removal of chips, thereby decreasing resistance and preventing the 
cracking problem.  
14
Patent AU-2020200456-B1 (AU)
Title: Method and system for eliminating noise
Inventor: XIN WEI
IPC: G01N29/34
Filed: 2020-01-22
Abstract: The invention discloses a method for eliminating noises, which comprises the steps of connecting 
an original analog signal and a detection circuit; switching the connection relation to obtain an 
mixed analog signal; sampling the mixed analog signal to obtain an mixed digital signal sequence; 
performing a discrete Fourier transform on the mixed digital signal sequence to obtain a frequency 
domain digital signal; solving a frequency domain useful signal in a frequency domain; and 
performing an inverse Fourier transform on the frequency domain useful signal to obtain a time 
domain useful signal. By isolating the noise and the signal in the frequency domain, the present 
invention eliminates the noises in the full time domain, and solves the problem that the noise cannot 
be eliminated due to different values of amplitude of the noise at different time points in the 
traditional noise reduction technology.
Patent WO-2006103083-B1 (WO)
Title: Systeme et methode pour coder des informations sur une bande d'essai de biocapteur
Inventor: BEATY TERRY
IPC: G01N27/26
Filed: 2006-03-31
Abstract: L'invention concerne une bande d'essai pour mesurer la concentration d'un analyte à examiner dans un fluide biologique. Cette bande d'essai peut être codée à l'aide d'informations pouvant être lues par un dispositif de mesure d'essai dans lequel la bande d'essai est insérée.
Patent WO-2007104733-B1 (WO)
Title: Unité de declenchement électronique pour un disjoncteur de protection de moteur d'un moteur électrique
Inventor: MEID WOLFGANG
IPC: H02H7/08
Filed: 2007-03-12
Abstract: L'invention concerne une unité de déclenchement électronique pour un disjoncteur de protection de moteur d'un moteur électrique comprenant au moins une unité de détection (110, 211, 212, 213) permettant de détecter au moins une valeur de mesure du courant d'au moins un courant guidé vers le moteur électrique, au moins un circuit discriminateur (120, 220) comprenant une sortie permettant de délivrer un signal de commande pour commander le moteur. Le circuit discriminateur (120, 220) est dans un premier état, lorsque la valeur de mesure de courant d'au moins une valeur ne dépasse pas un niveau de déclenchement minimum prédéfini. Le circuit discriminateur (120, 220) est dans un second état, lorsqu'au moins une valeur de mesure de courant d'au moins une valeur dépasse la valeur de déclenchement minimum prédéfini, et le circuit discriminateur (120, 220) dans le premier état place le signal de sortie sur un second niveau et le circuit discriminateur (120, 220) comprend un composant limitant le courant. La valeur de déclenchement minimum prédéfini est déterminée par la tension de claquage du composant limitant le courant.
Patent WO-2008000953-B1 (WO)
Title: Perfectionnement à un système d'alimentation en énergie électrique à très basse tension pour véhicule a traction électrique à stockage d'énergie embarqué
Inventor: AFRIAT HERVE
IPC: B60M3/00
Filed: 2007-06-27
Abstract: L'invention concerne un système d'alimentation électrique d'au moins un véhicule électrique sur une voie (20') caractérisé en ce qu'il comporte un moyen d'alimentation électrique (10'a) constitué par un réseau électrique domestique attenant (15).
Patent WO-2006048720-B1 (WO)
Title: Procede efficace de preparation de (s)-3-[(1-dimethyl amino)ethyl]-phenyl-n-ethyl-n-methyl-carbamate
Inventor: GHARPURE MILIND MORESHWAR
IPC: C07C269/04
Filed: 2005-10-29
Abstract: Cette invention concerne un procédé de préparation de phényl carbamate substitué et de sels pharmaceutiquement acceptables de celui-ci, qui présentent actuellement un intérêt pharmaceutique. Le phényl carbamate substitué et les sels pharmaceutiquement acceptables de celui-ci sont utilisés pour augmenter l'activité cholinergique dans le système nerveux central et interviennent dans le traitement de maladies telles que la maladie d'Alzheimer, le syndrome de Down, la chorée de Huntington ou l'ataxie de Friedrich. Le (S)-3-[(1-diméthyl amino)éthyl]- phényl-N-éthyl-N-méthyl-carbamate représenté par la formule (I) constitue l'ingrédient actif de la composition pharmaceutique visée dans US 5 602 176. Ce composé sert également à induire une inhibition sélective de l'activité de l'acétylcholinestérase dans le cerveau.