baber/WOPTO huggingface dataset:
Patent KR-930010343-B1 (KR)
Title: Method of producing cloth gloves
Inventor: HWANG IN-JO
IPC: D04B1/28
Filed: 1991-10-07
Granted: 1993-10-16
Abstract: The method is used for knitting  fabric  gloves  of  seamless tricot structure by tricot machine. The tricot machine  having  24 guides, has eleventh, twelfth, first-eleventh guides with a  three step function for connecting the front side with  the  rear  side; first, second,  first-first,   first-second   guides   for   only performing a one step function; from third to tenth,  first-third, first-tenth guides having a one step function, a two step function for separating gaps between respective finger  parts  on  knitting finger parts, a three step function for connecting the front  side with the rear side of the finger parts after separating the finger parts. The method offers the minimized 1,729 number of chains.
Patent KR-940009466-B1 (KR)
Title: Video cassette tape player
Inventor: HONG HO-BOK
IPC: G11B15/02
Filed: 1991-11-08
Granted: 1994-10-13
Abstract: The device includes a play back switch and a MICOM for controlling the play-back operation, wherein the device includes a prohibitionary switch for prohibiting a youth from playing back a cassette for an adult; a lamp driving part for detecting a predetermined light signal on the portion where a label of the video cassette tape irradialed by a user; a color sensing part for outputting a predetermined level of sensing signal by determining the color of the label on the basis of the light signal; and a function controlling part for prohibiting the play back operation of the video cassette tape by the MICOM according to the sensing-results.
Patent KR-940001748-B1 (KR)
Title: Tape recorder reel driving device
Inventor: LEE JU-HYONG
IPC: G11B15/44
Filed: 1991-11-20
Granted: 1994-03-05
Abstract: The reel driving apparatus includes a power transmission means having a driving pulley and a friction electromotive rotator, the power transmission means further including upper and lower gears, a movable body having first and second coupling means so as to be connected to the upper and lower gears, and an intermediate gear, thereby enhancing assembling efficiency and reducing cost.
Patent KR-960004484-B1 (KR)
Title: Liquid detergent composition
Inventor: PARK SEUNG-KYU
IPC: C11D3/37
Filed: 1991-12-05
Granted: 1996-04-06
Abstract: This is new liquid cleaner composition for automatic dish washing machine. The cleaner which comprises detergent, alkali supplement, antifoaming agent, low foamable nonionic surfactant, dispersing agent, chlorine compd and phase stabilizing agent, contains 1-10wt.% acrylate/maleic anhydride copolymer of formula(I). The molecular weight of the above copolymer is 5,000-30,000. Alkali supplement is such as soda ash, caustic soda, caustic potassium or sodium sulfate, and low foamable nonionic surfactant is alkylene oxide block polymer.
Patent KR-940004131-B1 (KR)
Title: Method of making black matrix in the color display device
Inventor: LEE SHI-HYON
IPC: G09F9/00
Filed: 1991-12-09
Granted: 1994-05-13
Abstract: The method comprises a step which decides a mask having 100 μm line width of black matrix on glass plates (1,2) and shapes pattern by coating photosensitive material as minimum thickness, a step which shapes a thick film of the black matrix (3) with a paste of a composition, a step which prints repeatedly after printing a thick film of a black matrix (3) and drying for some time, a step which makes color display elements having black matrix film by the plastic process at 520 deg.C in a furnace, and a step which shapes the electrodes (4) with repeating prints on the film of black matrix (3). The composition comprises glass component 6-7 %, pigment 3-4 %, binder 2-3 %, and vehicle 89-86 %.
Patent KR-950014645-B1 (KR)
Title: Motor with drive circuit
Inventor: JEONG SEUNG-KYU
IPC: H02K11/00
Filed: 1991-12-30
Granted: 1995-12-11
Abstract: The driving circuit united motor having a motor with a fan at the front end of a rotary axis and a motor driving circuit which is placed at one side of the motor and is cooled by the fan, is characterized in that an air hole is formed around a stator core and a bracket, and the driving circuit placed at one side of the motor has a radiating plate having a plurality of radiating pins which are to be contact with air generated by the fan.
Patent KR-940009575-B1 (KR)
Title: High voltage transistor device isolation structure and producing method thereof
Inventor: LEE SANG-MIN
IPC: H01L21/76
Filed: 1991-12-31
Granted: 1994-10-15
Abstract: The method forms a high-voltage transistor device isolating structure and includes the steps of: forming an oxide layer and nitride layer on a silicon substrate to form a first photoresist layer excluding a predetermined part of the nitride layer; etching the predetermined part to form a nitride layer pattern excluding a predetermined part of the oxide layer; removing the first photoresist layer pattern; forming a field area by implanting an impurity ion; forming a field oxide layer by thermo-processing of O2; removing the nitride pattern and the under oxide layer; depositing a first polysilicon layer on the silicon substrate to coat an conductive impurity material; forming a second photoresist layer pattern on the first polysilicon layer; removing the first polysilicon layer excluding one portion of the polysilicon layer to from a guard poly pattern; removing the second photoresist layer pattern; and etching a predetermined portion of the insulating pattern and the silicon substrate to form a gate poly pattern.
Patent KR-100191983-B1 (KR)
Title: Heat barrier laminate and manufacturing method thereof
Inventor: WILLIAM REGLAND G
IPC: B32B15/14
Filed: 1990-05-30
Granted: 1999-06-15
Abstract: A lightweight and resilient heat barrier laminate which provides sound and vibration dampening. The laminate has a density less than about 5 lb/ft3 and a total thickness of no greater than about 1 inch. The laminate includes a first metal foil having high heat conductivity and a first batt of insulating nonwoven fiber material having a thickness of at least about 0.03 inch. The first batt is an outermost layer of the laminate which is adhesively bonded to a first side of the first metal foil. The laminate also includes a second metal foil and a second batt of insulating nonwoven fiber material different from the material of the first batt. The second batt has a thickness of at least twice as thick as the first batt and is adhesively bonded to a second side of the first metal foil. The second metal foil is an outermost layer of the laminate, has high heat conductivity, is in contact with the second batt of insulating material and in contact with a carpet.
Patent KR-100228412-B1 (KR)
Inventor: SHMITTER ANDRE
IPC: B32B27/18
Filed: 1992-02-14
Granted: 1999-11-01
Abstract: 하기 일반식(I)의 히드록시페닐트리아진은 주쇄에 헤테로 원자를 포함하는 열가소성 중합체용 안정화제로서 특히 적합하다 : 
     
       
     
     상기 식에서, R은 수소, C 1 -C 18 알킬; 할로겐 또는 C 1 -C 12 알콕시에 의해 치환된 C 2 -C 6 알킬; 또는 벤질이고, R'은 수소 또는 메틸이다.
Patent KR-940006274-B1 (KR)
Title: Method of manufacturing rotary knife
Inventor: JONG JIN-MO
IPC: B21K19/02
Filed: 1992-02-14
Granted: 1994-07-14
Abstract: The method for manufacturing a rotary cutter of a comparatively bigger size in a integrated work line, is composed of supplying the raw material cut in a certain size to the heating section for 6-8 seconds; heating the material at the temp. of 700-800 deg.C; primarily rolling the heated material to a thickness; secondarily rolling the material to form a cutting edge at a side; bending the rolled material to a certain currature; stamping the material in a blow in order to perform cutting, punching, drawing simultaneously.
Patent KR-950007037-B1 (KR)
Title: 2-pannel style projecting apparatus
Inventor: JONG BYONG-HA
IPC: G03B21/00
Filed: 1992-05-23
Granted: 1995-06-26
Abstract: a mirror for separating a visible ray arranged in a light path of an illuminating light source; a condensing lense for condensing the visible ray; a first dichromic mirror for dividing a white light into one colored light and another two colored lights; two LCD panels being arranged in the light path of the first dichromic mirror so as to make an image; a total reflection mirror for totally reflecting the light passed the LCD panels; a second dichromic mirror for remixing the reflected lights of the total reflection mirror; and a projecting lense for projecting the mixed light on a screen.
Patent KR-960010605-B1 (KR)
Inventor: SATOSHI OKUNO
IPC: F27D25/00
Filed: 1992-06-03
Granted: 1996-08-06
Abstract: 내용 없음.
Patent KR-0147556-B1 (KR)
Inventor: JUNG JE-CHANG
IPC: G06K19/00
Filed: 1992-08-11
Granted: 1998-09-15
Abstract: 이 발명은 스캐너로 투입된 명함을 전자적으로 스캔하고, 그 스캔된 내용이 보조기억장치에 저장하여, 사용자가 필요시 언제나 그 정보를 알 수 있도록 된 전자식 명함 시스템에 관한 것이다. 
     이 발명은 컴퓨터, 스캔너, 보조기억장치, 디스플레이 장치로 이루어져 간편하고 많은양의 정보를 저장할 수 있을 뿐만아니라 디스플레이 장치 및 프린터를 통하여 데이타를 얻을 수 있는 매우 뛰어난 효과를 지닌 전자식 명함 시스템이다.
Patent KR-0144450-B1 (KR)
Inventor: TOMITA SATORU
IPC: G09G3/36
Filed: 1992-10-05
Granted: 1998-07-15
Abstract: 본 발명은 디스플레이 이미지에서 밝기의 불균일성과 깜박임의 발생을 방지시킨 고품질의 액정표시장치에 관한 것으로서, 
     주사펄스가 인가되는 다수개의 주사선과 극성이 제1차 표준전위와 반대로 주기적으로 변환되는 이미지신호전압이 인가되는 다수개의 신호선을 가진 매트릭스 배선; 트랜지스터 스위칭소자를 경유하여 매트릭스 배선의 각 교차점에 배치되어 있는 화소전극; 
     기억캐패시터선 그리고 화소전극과 상기 기억캐패시터선 사이에 형성되어 있는 기억캐패시터; 
     화소전극에 대향하여 배치된 대향전극; 
     대향전극과 화소전극 사이에 유지되어 있는 액정조성물 ; 그리고 기억 캐패시터선전압을 기억 캐패시터선에다 인가시키는 장치를 구성하고 있다.
Patent KR-100273330-B1 (KR)
Title: Device for processing moving picture restoration of multimedia system
Inventor: YOON JI SEONG
Filed: 1992-10-08
Granted: 2001-02-01
Abstract: PURPOSE: A device for processing a moving picture restoration of a multimedia system is provided to prevent a white line from being generated on a moving picture screen caused by a variable data stream and use an area of a restricted board effectively by using a general FIFO. CONSTITUTION: A compression data recovering unit(11) receives and restores compression data being inputted during a blank period whenever a horizontal synchronization signal(HSYNC) is activated. A pair of FIFO memories(13,14) write data being supplied in the compression data recovering unit(11) when a write clock(WCK) is inputted and read and output written data when a read clock(RCK) is inputted. A pair of FIFO memories(15,16) perform a reading process when the memories(13,14) perform a writing process, and perform a writing process when the memories(13,14) perform a reading process. A FIFO control unit(12) supplies a necessary clock in order for the compression data recovering unit(11) and the pairs of FIFO memories(13,14,15,16) to be operated. The FIFO control unit(12) comprises a D flip-flop outputting a signal for reversing a state in accordance with a horizontal synchronization signal(HSYNC) being applied to a clock terminal and a programmable logic array unit combining the state signal(FIFO SEL) to an inputted signal form the D flip-flop and making a necessary signal.
Patent KR-950012893-B1 (KR)
Title: Face grinding state discriminating method
Inventor: AHN HYON-SHIK
IPC: B24B49/00
Filed: 1992-12-30
Granted: 1995-10-23
Abstract: The method for discriminating the polish state of specimen surface with high speed comprises the steps of: a) forming digital image as taking surface picture of metal specimen; b) masking the digital image as passing the image through window which shape is same to the specimen surface to exclude the circumference of the specimen; c) selecting the start pixel from the masked image and forming pixel elements along the circumference of specimen with 3 x 3 cross templet application method until returning to the start pixel as storing the position and brightness of corresponding pixel; and d) determining polish state with detection of continuous unpolished pixels.
Patent KR-0148225-B1 (KR)
Title: Article of footwear having improved midsole
Inventor: KRAMER HY
IPC: A43B13/20
Filed: 1991-02-04
Granted: 1998-08-17
Abstract: A midsole, partial midsole, or the like (10), for inclusion in an article of footwear having a flexible, air-permeable top sole, characterized by at least one plug (11) in the heel region having a thickness (height) sufficient to permit significant compression deformationm along its thickness dimension accompanied by simultaneous significant bulging deformation in its circumscribing surface perpendicular to the thickness dimension; the deformations occuring solely due to normal walking activity by any wearer of the footwear; and the deformations thereby providing simultaneously for shock-absorption and ventilation during said normal walking activity.
Patent KR-0169144-B1 (KR)
Title: Slitting apparatus for corrugated paperboard and the like
Inventor: PAULSON RICHARD F
IPC: B26D7/08
Filed: 1991-03-07
Granted: 1999-02-01
Abstract: An apparatus for providing longitudinal, laterally spaced slits in a continuously moving sheet or web of corrugated paperboard (13) or the like includes a plurality of upper tool heads (12) each supporting a thin, circular rotary slitting blade (25). The blades (25) are coaxially mounted and driven by a common drive shaft (23) and each blade-carrying tool head (12) is independently positionable across the width of the paperboard sheet (13). Each slitting assembly includes a lower tool head or counterhead (28) carrying a roller assembly (32) which supports the underside (27) of the moving board (13) and provides a firm surface to support the board (13) against the upper rotary slitting blade (25). The roller assembly (32) includes a circumferential radially extending slot (44) in its outer surface through which an edge portion of the upper cutting blade (25) travels with the sheet firmly supported by the roller surfaces on each side of the slot (44). A blade lubricator (61) is attached to the upper head (12) and applies a thin film of lubricant to the blade edge (67) by direct engagement by a lubricating wick (65) while the blade (25) is rotating. The thin blade (25) is maintained in a sharpened condition by periodic engagement with a rotary sharpening tool (73) pivotally attached to the upper tool head (12) for periodic light sharpening contact with one face of the beveled blade cutting edge (67). Both the blade lubricator (61) and the blade sharpener (73) are retractable to inoperative positions to facilitate blade changing or blade reversal to provide extended blade life through periodic sharpening of the opposite blade edge bevel. The overlapping contact between the portion of the slitting blade (25) extending into the slot (44) in the lower supporting roller assembly (32) allows the lower tool head (28) and roller assembly (32) to be translated across the width of the sheet (13), as for repositioning, with a single positioning motor assembly (87) on the upper tool head (12).
Patent KR-0144975-B1 (KR)
Inventor: KIM TAE-WOONG
IPC: H03M13/27
Filed: 1993-01-12
Granted: 1998-08-17
Abstract: 싱크코드 인터리브장치 및 방법은 인터리브방식을 통해 소정단위의 데이터에 각각 해당되는 복수개의 싱크코드를 하나의 싱크블럭으로 묶어 기록매체상에 기록하여 테이프상에 차지하는 싱크사이즈를 길게함으로써 에러발생율을 저하시키고, 재생시싱크코드의 검색을 용이하게 하는 것이다. 이를 위하여 기록을 위하여 인가되는 데이터압축 및 2 차원 리드솔로몬 부호화를 하는 엔코더와 기록메체로 부터 픽업된 데이터에 대해 2차원 리드솔로몬 복호화하고 압축된 데이터를 신장하기 위한 디코더로 이루어지는 디지탈 시스템에 있어서 엔코더에 2차원 리드솔로몬 부호화기에서 출력되는 에러정정부호화단위의 영상데이터가 열방향으로 인가되면 에러정정부호화단위내의 n바이트의 행방향 데이터에 대하여 k개단위로 인터리브방식에 의해 재배치하여 변조기로 출력하기 위한 인터리버를 포함시키고; 디코더에 인터리버에 의하여 재배치된 상태로 복조기에서 출력되는 신호를 원래의 에러정정부호화단위의 형태로 복구하는 역인터리버를 포함하도록 구성된다.
Patent KR-950004220-B1 (KR)
Title: Buffer control circuit of length-variable codec
Inventor: CHOE JONG-SHIK
IPC: G06F5/06
Filed: 1993-02-01
Granted: 1995-04-27
Abstract: The buffer controlling circuit includes an image start code detecting unit for detecting an image start code among the row of codes for decoding, a first buffer for storing the input row of codes by units of frame, a decoder for performing variable field decoding for the data stored in the first buffer, a second buffer for storing the decoded data by units of frame, a coefficient generating unit for generating a discrete cosine transform (DCT) coefficient from the data stored in the second buffer, a buffer/error processing unit for controlling the decoder so as to perform decoding when an enumerated data reaches a designated value as the result of enumerating input data frames after receiving the image start code detected by the image start code detecting unit and finishing decoding. The buffer/error processing unit controls the coefficient generating unit so as to generate the DTC coefficient from the data stored in the second buffer and stops the decoding operation in case of occurring of an error.
Patent KR-950010349-B1 (KR)
Title: Processing of kimchi that have not ordor and hot taste
Inventor: CHOE JIN-UNG
IPC: A23L19/20
Filed: 1993-02-04
Granted: 1995-09-16
Abstract: The kimchi is  prepd. by  1) cutting Chinese  cabbage, 2)  preserving the  cut  cabbage with  salt,  and  3)  mixing  the salted  cabbage  with seasons contg.  0.1-1 wt%  beta cyclodextrin  and 1.0-2.5  wt% pimento powder. The  pimento powder is obtd.  by drying pimento at 40-45 deg. C for 24 hrs., pulverizing and putting through 10 mesh sieve.
Patent KR-100255490-B1 (KR)
Inventor: BLANCHARD GILBERT
IPC: C07C255/01
Filed: 1993-02-05
Granted: 2000-05-01
Abstract: 본 발명은 포화 탄화수소류의 암모산화 방법, 즉 알칸류를 α,β-불포화 니트릴류로 전환하는 방법에 관한 것이다. 
     보다 구체적으로는, 본 발명의 대상은, 활성상이 바나듐, 안티몬, 비스무트 및 산소를 함유하는 고형 촉매상의 존재하의 증기상에서 알칸류를 암모산화하는 방법에 관한 것이다. 
     본 발명은 프로판을 아크릴로니트릴 및 프로필렌을 함유하는 혼합물로 암모산화하는 것에 보다 특히 적합하다.
Patent KR-950009495-B1 (KR)
Inventor: SONG TAE-KYU
IPC: D06M11/83
Filed: 1993-03-08
Granted: 1995-08-23
Abstract: 내용 없음.
Patent KR-100210760-B1 (KR)
Inventor: KATO TALL
IPC: A41D27/08
Filed: 1993-04-09
Granted: 1999-07-15
Abstract: 종래의 주름바지를 개량하고 그 장점을 손상하지 않고 미관과 디자인 기능의 개선, 봉제작업의 용이성 및 생산비의 절감, 소재 제한의 완화를 가능케 한다. 긴 바지의 구성소재인 앞천과 뒤천이 각각 길이방향의 중심선을 따라서 구획 재단된 앞 외측부 와 앞 내측부 및 뒤 외측부 와 뒤 내측부로 이루어지고, 앞 외측부와 뒤 외측부는 바지길이에 해당하는 길이의 옆 솔기 측 변 가장자리를 가지며, 앞 내측부와 뒤 내측부 와는 가랭이 치수에 해당하는 길이의 안솔기 측 변 가장자리를 갖는 동시에, 상기 외측부들 및 내측부들의 각각의 전개원형은 그 중심선측의 변가장자리의 길이가 옆솔기측 변가장자리의 110~160%가 되도록 중심선측의 변가장자리를 외측으로 한 호상으로 만곡하여 형성되어 이루고, 이들의 앞 외측부와 앞 내측부 및 뒤 외측부와 뒤 내측부와는 각각 중심선을 따라서 봉합되는 동시에 잔물결이 실시되어 있고, 이 잔물결 수축시의 치수는 옆솔기의 길이와 실질적으로 동등인 주름바지.
Patent KR-930009258-B1 (KR)
Inventor: ITOH HISATO
IPC: C09K3/00
Filed: 1993-05-15
Granted: 1993-09-24
Abstract: 내용 없음.
Patent KR-0123794-B1 (KR)
Title: Antomatic adjustment system and method for television
Inventor: SONG MYUNG-EUI
IPC: H04N17/04
Filed: 1993-06-25
Granted: 1997-11-26
Abstract: Disclosed is a system and method for automatic regulation of a television(10).  In the system and method, a barcode information(10a) for automatic regulation of the television(10) is read by a barcode reader(14).  Each regulation reference data from a central processing unit(12) is presetted to each apparatus according to the barcode information(10a).  A regulation pattern image is generated from an image signal processor(18), and is displayed by the television(10).  A video cassette(16) acquires an image signal from the displayed image.  The image signal from video cassette(16) is analyzed by the image signal processor(18), so that regulation data are acquired.  The regulation are transmitted to the television(10) so that each item is regulated according to the regulation data.  Thereby, the regulation information is able to be centrally managed by the central processing unit(12).
Patent KR-970005429-B1 (KR)
Inventor: ISHIKAWA TORU
IPC: G11C11/401
Filed: 1993-07-29
Granted: 1997-04-16
Abstract: 내용 없음.
Patent KR-950012145-B1 (KR)
Title: Method making pile on grill of airconditioner
Inventor: SONG KIL-SU
IPC: F24F13/08
Filed: 1993-08-19
Granted: 1995-10-14
Abstract: removing fat of a grill fabricated through an injection or press process to remove dirts out of the grill; injecting adhesive onto the grill to form a resistant-bacteria layer; planting sediment which is resistant-bacteria processed under a constant voltage of 10,000 to 20,000V; and drying an injected material during a period of 20 to 25 minutes at the temperature of 60≰C to 80≰C and drying a pressed material at the temperature of 120≰C to 150≰C.
Patent KR-950014174-B1 (KR)
Title: Knitted fabric's making method
Inventor: YUN JONG-SON
IPC: D03D11/00
Filed: 1993-08-28
Granted: 1995-11-22
Abstract: The method comprises knitting or weaving a triple fabric, using very fine yarns of hydrophilic nylon/ lipophilic nylon composite for the surface layers and highly shrinkable polyester yarns for the intermediate layer, and dyeing it. The obtained fabric is used for wiping spactacles, jewels or pianos.
Patent KR-100317236-B1 (KR)
Title: Mos전계효과트랜지스터
IPC: H03F3/16
Filed: 1993-08-31
Granted: 2002-07-18
Abstract: 본 발명은 복수입력의 통합을 용이하게 실현할 수 있는 MOS전계효과 트랜지스터를 제공하는 것을 목적으로 한다. 
     게이트(G)에 입력단자가 접속되고, 소오스(S)가 고저항을 통해 접지되어 있고, 드레인(D)에 전원(Vcc)이 접속된 MOS전계효과 트랜지스터이고, 또한, 소오스 (S)에 출력용 커패시턴스(C)가 접속되어 있다.
Patent KR-970011221-B1 (KR)
Title: Data analysis system
Inventor: LEE BONG-JOO
IPC: G06F19/00
Filed: 1993-10-16
Granted: 1997-07-08
Abstract: The data analysis system of a microwave oven is characterized by comprising: a personal computer(200) including a personal computer main frame(210) where a data analysis program of the microwave oven is installed, a monitor(230), an output device(220) such as a printer, a memory device(240) such as a hard disk or a floppy disk; and a control part(100) of the microwave oven including an interface card(160) which is connected with the personal computer(200) through a serial communication cable and synchronizes analog/digital data, which a micom(110) receives from a sensor(130), to a communication synchronization signal and transfers the analog/digital data to the personal computer(200).
Patent KR-970006613-B1 (KR)
Title: All-in-one polymeric system optical waveguide structure and method of manufacturing the same
Inventor: JUNG TAE-HYUNG
IPC: H01L33/02
Filed: 1993-12-08
Granted: 1997-04-29
Abstract: A technique is described that provides an optical waveguide composed of all-in-one polymeric system and method for fabricating the same. The optical waveguide includes: a bottom buffer layer(2) formed on a silicon substrate(1) and composed of the same material as a light-bleached guiding layer(5); a cladding region(3) formed on the bottom buffer layer(2) and bleached by light; and a light-bleached upper buffer layer(4). The method includes the steps of: (a) forming a nonlinear polymeric thin film(4); (b) bleaching the nonlinear polymeric thin film(4) using UV; (c) forming the bottom buffer layer(2) by dropping polymeric material; (d) forming the cladding region(3) having a unbleached channel guiding path(5); (e) performing a annealing process and then forming a nonlinear polymeric thin film (4); and (f) bleaching the nonlinear polymeric thin film(4) prior to an annealing process. Thereby, it is possible to easily form a single waveguide, and obtain buffer layers by bleaching the guiding layer material and thus reduce production cost.
Patent KR-960016568-B1 (KR)
Title: Refining method for stevia sweetner
Inventor: INN MAN-JIN
IPC: A23L27/10
Filed: 1993-12-28
Granted: 1996-12-16
Abstract: The stevia sweetener with high purity is purifyed : crystallizing a crude solution of stevia sweentener by using methanol including below 0.5 wt.% or less moisture and purifying the crude with an activated charcoal; concentrating the obtd. purifyed soln. to a moisture content of below 0.5%(w/v) by using molecular sieve. In the above processes, the activated charcoal is used as a drying state.