baber/WOPTO huggingface dataset:
Patent KR-930002976-B1 (KR)
Title: Rotary engine
Inventor: CHON BYONG-SU
IPC: F02B53/00
Filed: 1990-07-19
Granted: 1993-04-16
Abstract: The rotary engine mounts the first and second  rotating  body (5,5a) having the first and second arm and  rotor  (4,4a)  on  the inside of cylinder block (1), a  side  housing  for  covering  the cylinder block (1) and the rotating body (5,5a), induction  plates (10,10a) with output shaft, the  suction  and  exhaust  valve  and spart plug at the circumferential surface of the  block  (1).  The first and second rotors (3,3a) form a crank shape having  a  fixed difference, and connect with the first arm (5) and induction plate (10a) of the first rotating body  (4).  The  engine  includes  the cranks (8,8a) connected to the  second  arm  (5a)  of  the  second rotating body (4a) and  induction  plate  (10),  a  pin  (11)  for connecting the induction plates (10,10a) interlocked by the cranks (8,8a).
Patent KR-930007581-B1 (KR)
Inventor: HALL JAMES T
IPC: G02B5/28
Filed: 1990-08-16
Granted: 1993-08-13
Abstract: 내용 없음.
Patent KR-970005240-B1 (KR)
Title: Emulsifying base and manufacturing process
Inventor: LEE KUN-KOOK
IPC: A61K8/41
Filed: 1990-09-22
Granted: 1997-04-14
Abstract: A new emulsification base of tetrahydroxyl propylamine with addition of fatty acid is used in place of the conventional acid to improve dispersion and emulsification of pigments irrespective of their hydrophile and lipophile. The base includes ethylene diamine tetra acetic acid 0.01- 0.1 wt%, and fatty acid 0.5- 10.0 wt% at PH 8.0-9.0, the fatty acid being stearic acid or palmitic acid.
Patent KR-930006853-B1 (KR)
Title: Manufacturing method of semiconductor device with source/drain self-aligned type
Inventor: KIM KYONG-TAE
Filed: 1990-10-10
Granted: 1993-07-24
Abstract: The source/drain self-aligned semiconductor device is mfd. by (a) forming an active and inactive region (2) on the semiconductor substrate (1), (b) forming a first insulating layer (3),  a  first conductive layer  (4),  a  second  insulating  layer  (5)  and  an etch-stopping layer (6) in the  substrate,  (c)  lifting  off  the residual part except the  gate  region  by  the  RIE  method,  and forming a sidewall insulating film (8) on the nonolifted off part, and  (d)  forming  a  second  conductive  layer  (10),  and   then separating a gate  electrode  (4)  and  a  source/drain  electrode (13,14).
Patent KR-930006825-B1 (KR)
Inventor: HAN JIN-SU
IPC: H04N1/00
Filed: 1990-11-30
Granted: 1993-07-24
Abstract: 내용 없음.
Patent KR-930004904-B1 (KR)
Title: Two-way radio communications system having selectable operating modes
Inventor: PATSIOKAS STELIOS J
IPC: H04M1/00
Filed: 1989-08-16
Granted: 1993-06-10
Abstract: A radio communication system includes a base station (107, 109, 104, 105) and a plurality of remote units (202, 203, 210, 204) that can be operated in one of several modes. In the Message Storage mode, a caller is given the option to store a voice or numeric message for later transmission to the called remote unit. If caller enters an Override code, however, the system attempts to establish voice communication between the caller and the called remote unit. In the Call Screening mode, the caller's message is stored in the base station and, simultaneously, forwarded to the called remote unit. During reception of the message, the called remote unit can ''pickup'' the call and begin normal voice communications with the caller.
Patent KR-940002721-B1 (KR)
Title: Device for automatically ascertaining capacitor breakdown voltage
Inventor: BERRIGAN PAUL J
IPC: G01R31/02
Filed: 1989-12-21
Granted: 1994-03-31
Abstract: Test fixtures, each being adapted to receive a capacitor, are connected through a relay network to a time variable high voltage source. Predetermined relays are energized in a predetermined sequence to connect a given capacitor to the source. A high voltage signal having a predetermined waveform is applied to the capacitor associated with an energized relay. When the current through the given capacitor exceeds a threshold, the voltage value then being applied to the capacitor determines the breakdown voltage of the capacitor.
Patent KR-920004135-B1 (KR)
Title: Time display device
Inventor: MASUDA ISAMU
IPC: A61N2/02
Filed: 1989-04-10
Granted: 1992-05-25
Abstract: The present invention relates to a time display device comprising a digital display unit (50) for displaying the passage of time set in an electric appliance whose operating time, for instance, can be preset. The time display device is arranged according to the present invention so that a display control switches the display operation performed by the digital display unit (50) to a flickering operation when temperature sensors installed in the electric appliance are turned on, whereby the user is informed of the temperature of the electric appliance exceeding a predetermined value. Instead of the provision of an alarm of this sort such as an alarm buzzer or lamp as in the case of prior art, the provision of such a time display device permits of dispensing with a particular alarm device, so that an increase in the number of parts and therefore an increase in production cost can be prevented.
Patent KR-940006465-B1 (KR)
Title: Preparation of thermoplastic resin composition
Inventor: LEE CHAN-HONG
IPC: C08L25/12
Filed: 1991-01-21
Granted: 1994-07-20
Abstract: This relates to the manufacturing of α-methylstyrene-base copolymer which has good heat resistance and formability and excellant thermal stability. The manufacturing method comprises: A) putting 80-90 wt.% of total monomers composed of styrene <= 10 wt.pts., vinylcyanic compd. <= 25 wt.pts., acrylic monomer <= 10 wt.pts., methacrylamide or acrylamide <= 10 wt.pts., α,β-unsat. carboxylic acid <= 5 wt.pts., initiator 0.2-0.4 wt.pt., and mix. emulsifying agent <= 4 wt.pts.; B) heating to 65 deg.C for 1-2 hrs; C) putting 80 wt.% of residual monomers continuously for 5 hrs and reacting for 1 hr; and D) adding 50-70 wt.pts. of (C) and SAN resin <= 25 wt.pts. in the 30-50 wt.pts. of ABS resin.
Patent KR-100228926-B1 (KR)
Inventor: MARTIN JAMES ASHWORTH
IPC: G06G7/57
Filed: 1991-02-25
Granted: 1999-12-01
Abstract: 본 발명은 터어빈을 구동하기 위해 유체의 흐름을 감시하는 방법 및 장치에 관한 것으로, 유체는 유체의 유입구 및 유체의 유출구 사이의 터어빈 블레이드 통로(turbine blade path)를 통해 흐른다. 또한, 본 발명은 유체의 유입구 및 유체의 유출구에서 유체의 압력값을 감지하고, 감지된 압력값에 기초하여 유체의 유속을 전자적으로 계산하며, 계산된 유체의 유속이 최대 바람직한 유속을 초과하는 경우 표시 신호를 자동으로 제공한다.
Patent KR-950008016-B1 (KR)
Inventor: NAKAMURA DOSIGKI
IPC: F01C21/10
Filed: 1991-04-30
Granted: 1995-07-24
Abstract: 내용 없음.
Patent KR-0180917-B1 (KR)
Title: Photodynamic inactivation of viruses in cell-containing compositions
Inventor: HOROWITZ BERNARD
IPC: A61L2/00
Filed: 1991-05-15
Granted: 1999-04-01
Abstract: The present invention concerns the product produced by inactivating extracellular lipid enveloped pathogenic virus or intracellular pathogenic virus in a composition containing >1 X 10<9> cells/ml and said virus without incurring substantial disruption or inactivation of such cells, the inactivation process comprising contacting the composition with a virucidally effective amount of at least one photoreactive compound having an absorption maximum of >/= 630 nm, light and an oxidizer, thereby substantially to inactivate the virus with retention of cell functionality, greater than 80%. The present invention also concerns the product produced by inactivating virus in a biological composition without incurring substantial disruption or inactivation thereof, the inactivation process comprising contacting said composition with a virucidally effective amount of at least one photoreactive compound, light, and a quencher thereby to inactivate said virus while retaining functionality of said substance. <IMAGE>
Patent KR-0164769-B1 (KR)
Inventor: KIM JAE-HO
IPC: G06F9/06
Filed: 1991-05-25
Granted: 1999-01-15
Abstract: 시스템 프로그램을 실행하는 방법에 관한 것이다. 
     하나의 메모리 칩을 여러개의 뱅크로 나누어 쓰고 시스템 프로그램이 각 뱅크에 모두 실려 있어 뱅크간에 서브루틴을 호출하는 경우 시스템 전원 공급시 뱅크 전환 프로그램을 램에 옮기고 이 전환 루틴을 이용해 뱅크간의 시스템 서브루틴을 호출 함으로써 뱅크간에 서브루틴 호출이 부가적인 하드웨어 없이 원활히 이루어지게 한다.
Patent KR-100190935-B1 (KR)
Inventor: KOTANI KOZO
IPC: C08L101/00
Filed: 1991-10-01
Granted: 1999-06-01
Abstract: 산화 규소가 합성 수지를 기준으로 하여 약 2 ~ 약 25 중량 % 의 양으로 사용되고, 수중 분쇄법에 의해 제조되며, 산화 규소의 평균 입자 크기는 4㎛ 이하이고, 20㎛ 의 입자 크기를 초과하는 입자가 실질적으로 존재하지 않으며, 비표면적 20m 2 /g 이하임을 특징으로 하는, 합성 수지 및 산화 규소로 이루어지고 투명성이 개량된 적외 흡수성 필름이 개시되어 있다.  이 필름은 그것의 한쪽 표면상에 형성된 투명 수지층을 추가로 함유할 수도 있다.
Patent KR-960002591-B1 (KR)
Inventor: HOLBROOK MICHAEL T
IPC: B01J23/62
Filed: 1991-10-02
Granted: 1996-02-23
Abstract: 내용 없음.
Patent KR-940007667-B1 (KR)
Title: Manufacturing method of recess gate gaas fet
Inventor: PARK CHOL-SUN
IPC: H01L21/338
Filed: 1991-12-13
Granted: 1994-08-22
Abstract: The method manufactures a GaAs recessed gate field effect transistor. The method comprises the steps of: (A) injecting n-type impurity on a channel layer and a source and drain region of a GaAs substrate (1); (B) covering a substrate by a dielectric layer (2) and activating by thermal process; (C) masking a photosensitive layer on a dielectric layer (2) and etching a layer (2) to form a gate region; (D) forming an oxide layer (4) of a certain thickness on a substrate; and (E) etching an oxide layer (4), vaporizing a gate metal (5) and forming an ohmic electrode (6).
Patent KR-940007834-B1 (KR)
Title: Method of testing the reliability of os and hw of multiprocessor system
Inventor: YU U-JONG
IPC: G06F15/16
Filed: 1991-12-17
Granted: 1994-08-25
Abstract: The method includes the steps of setting an environment related to a test target system, checking whether the test target system is an input/output device, a memory device or a processor, and testing a tape, a disk, a printer or a terminal of the input/output device, a cache memory or a main memory of the memory device, and the processor according to the test target system and storing a test result, thereby raising the reliability of the system.
Patent KR-950001154-B1 (KR)
Title: Manufacturing method of vertical ldd mosfet
Inventor: LEE JIN-HO
IPC: H01L29/78
Filed: 1991-12-28
Granted: 1995-02-11
Abstract: The method includes the steps of forming a well (2) on a silicon substrate (1), forming a vertical trench pillar by using a trench etching process, performing an isolation process, forming a gate oxide film (12) thereon to deposit a thin poly-Si film (14) thereon to implant P ions thereinto to form an N- LDD layer (3), depositing and patterning a 2nd poly-Si thick film (15) to form a vertical gate (16) on the side wall of the trench pillar, forming an oxide spacer (7) on the side wall of gate (16) to adjust the length of layer (3), and using the gate (16) and spacer (7) as masks to implant As ions thereinto to form an N+ diffusion layer (4), thereby forming an LDD structure.
Patent KR-960011181-B1 (KR)
Inventor: HAJIME ARAI
IPC: H01L29/78
Filed: 1992-05-18
Granted: 1996-08-21
Abstract: 내용 없음.
Patent KR-100268541-B1 (KR)
Inventor: HAGUE JOHN A
IPC: H04N9/78
Filed: 1992-05-19
Granted: 2000-10-16
Abstract: 본 발명은 한 콤 필터에 의해 제공된 분리 색도 신호에 응답하게 되는 한 버스트 고정 클럭 발생기를 포함하는 비디오 신호 처리 시스템에 관한 것이다. 그 콤 필터는, 한 버스트 게이트 신호에 응답하여, 비-콤 필터된 비디오 신호를 버스트 기간동안 통과시키는 수단을 포함하여 클럭 발생기의 응답시간을 향상시킨다.
Patent KR-940011922-B1 (KR)
Title: Automatic welding device of a getter and getter spring
Inventor: JO HAE-KYUN
IPC: B23K11/11
Filed: 1992-05-25
Granted: 1994-12-27
Abstract: The device for automatically supplying and welding a getter and getter spring applied for the electron gun of color Braun tube, simplifies the necessary processes on manual welding and decreases the inferiority of the welded products. The device comprises the getter spring supply section for elevating the getter spring to a certain level using a detecting means, picking the spring on the top of the level and supplying the spring to the welding position; getter supply section for supplying and positioning the getter at the welding position; automatic welding section for performing the pressurized welding using a pair of upper/lower electrodes.
Patent KR-960008595-B1 (KR)
Title: Polyester and method for manufacturing the same
Inventor: KAWAGUCHI KUNIAKI
IPC: C08L67/02
Filed: 1992-06-03
Granted: 1996-06-28
Abstract: The present invention provides a process for the preparation of a polyester which has a high rate of crystallisation and is excellent not only in the processability in moulding but also in heat resistance and mechanical strengths. In the preparation of an aromatic polyester by the reaction of a lower alkyl ester of an aromatic dicarboxylic acid with an aliphatic diol, the transesterification of the lower alkyl ester with the diol is conducted in the presence of 0.02 to 3-.0 mole %, based on the lower alkyl ester of an aromatic dicarboxylic acid, of an aromatic sulfonic acid compound represented by the following general formula (I) by the use of a titanium compound as a catalyst, followed by the polycondensation of the transesterification product: HO-R-O-Ar-SO3M (I)    wherein -Ar- is a group selected between p-substituted benzene and 2,6-substituted naphthalene groups; R is a divalent group selected from among -CH2CH2-, -CH(CH3)CH2-, -CH2CH(CH3)- and -CH2CH2OCH2CH2-; and M is an alkali metal selected from among lithium, sodium and potassium. An excellent composition comprising this polyester and other aromatic polyester can be obtained.
Patent KR-940008878-B1 (KR)
Title: Prerecording method with rewinding function
Inventor: OH BYONG-HWA
IPC: G11B27/10
Filed: 1992-06-30
Granted: 1994-09-28
Abstract: The method for auto-rewinding a tape to a starting position after the recording operation is finished at a precontract recording mode includes the steps of recording a VISS mark together with a video signal on the tape when the recording operation is started, rewinding the tape to the VISS marking position after the recording operation is finished. According to the method, there is no necessity for searching the starting position at the playback mode.
Patent KR-100215519-B1 (KR)
Inventor: TONELLI CLAUDIO
IPC: G01N30/02
Filed: 1992-10-21
Granted: 1999-08-16
Abstract: 용출제로서, 비극성 플루오르화 용매를 단독으로 사용하거나 또는 극성 용매와의 혼합물을 사용하여 퍼플루오로폴리옥시알킬렌을 컬럼 크로마토그래피하는 것으로 구성되어 있는, 하기 일반식의 퍼플루오로폴리옥시알킬렌 중의 비작용성, 1작용성 및 2작용성군을 서로 분리하는 방법. 
     X-O-Rf-Y 
     상기 식에서, 
     Rf = 화학식 (CF 2 O), (CF 2 CF 2 O), (CF 2 CF 2 CF 2 O) 의 단량체 단위를 함유하는 퍼플루오로폴리옥시알킬렌 사슬이고, 
     X,Y= 서로동일하거나 상이하며 비작용성 말단기이거나 작용기 OH 및/또는 NH 2 작용기를 갖는 말단기이며, 상기 퍼플루오로폴리옥시알킬렌의 일부인 적어도 X 또는Y는 -OH 기 이거나 -OH 기를 함유하는 기이다.
Patent KR-950013071-B1 (KR)
Title: Process of or the preparation of m-boric acid for using esterificalirs catalyst of oxidation reaction
Inventor: LEE KYU-WAN
IPC: C01B35/10
Filed: 1992-12-15
Granted: 1995-10-24
Abstract: Meta-boric acid is prepared by dehydrating ortho-boric acid. The dehydration reaction is carried out at 135-140 deg.C and 700-720 mmHg for 35-50 mins, while the slurry concentration of reactant boric acid being kept at 8-28wt%. Particle diameter of ortho-boric acid used for the reaction is 0.09-0.35 mm, and agitation speed for the reaction is 700-800 rpm. Obtained m-boric acid is used as esterifying agent for oxidation reaction and can produce secondary alcohol with high selectivity, preventing coagulation phenomenon.
Patent KR-100249580-B1 (KR)
Inventor: JAKOB GERT
IPC: H05K5/00
Filed: 1991-05-25
Granted: 2000-04-01
Abstract: 본 발명은 전자회로용 하우징에 관한 것이다. 상기 하우징은 박스 형상으로 설계되어 있고, 이것의 종측면의 각각에는 숄더(44, 45)가 있고, 각각의 숄더위에는 리지(47, 48)가 있다. 냉각 프레임(11)은 숄더와 리지에 의하여 형성된 홈(52, 53)내로 밀려들어가고, 인쇄 회로판(10)은 냉각 프레임의 하부에 고정된다. 이것의 내부에 있어서, 냉각 프레임은 인쇄 회로판의 표면에 수직으로 설치되고, 전력 소자(20)가 고정되는 냉각 태브(15, 16, 17)를 가진다.
Patent KR-950007095-B1 (KR)
Title: Oven lamp auto control method of range
Inventor: LEE KUN-HYUNG
IPC: H05B6/66
Filed: 1993-01-09
Granted: 1995-06-30
Abstract: The method for minimizing the power consumption includes the steps of: a) detecting the temp. of cooking chamber with a sensor(9); b) adjusting the brightness of the chamber lamp by controlling the lamp voltage according to the detected temp.; detecting the temp. if the preset time for cooking is not out, but completing the cooking process if the time is out. The lamp voltage is controlled by applying the gate trigger signal to a controller(11) if the temp. reaches a preset value which is varied according to the temp. step.
Patent KR-960001557-B1 (KR)
Inventor: DAKKANO KOOSKE
IPC: B60Q3/02
Filed: 1993-02-09
Granted: 1996-02-02
Abstract: 내용 없음.
Patent KR-960012393-B1 (KR)
Title: Incinerator
Inventor: LEE HONG-KYU
IPC: F23J15/00
Filed: 1993-03-31
Granted: 1996-09-20
Abstract: The purifier is designed to remove various harmful gas and foreign matters generated from an incinerator. The refiner includes : an exhaust tube (9) installed to a purifier (1); a water neutralizing tank (4) installed between an exterior wall (3) and an interior wall (2); a cyclone section (7) located under the interior wall (2) and connected to the first precipitation tank (22) via a water collection hole (12); an injection nozzle (6); and a blower (10).
Patent KR-970005539-B1 (KR)
Inventor: SOWA DERUAKI
IPC: B01D53/81
Filed: 1993-06-17
Granted: 1997-04-17
Abstract: 내용없음.
Patent KR-970001132-B1 (KR)
Inventor: KIMURA KAZUYA
IPC: F04B27/10
Filed: 1993-08-06
Granted: 1997-01-29
Abstract: 내용 없음.
Patent KR-960003531-B1 (KR)
Inventor: FONG VINCENT L
IPC: H03F3/343
Filed: 1993-08-19
Granted: 1996-03-14
Abstract: 내용 없음.
Patent KR-950006537-B1 (KR)
Inventor: HORIKAWA YOICHI
IPC: A44B19/32
Filed: 1993-08-30
Granted: 1995-06-16
Abstract: 내용 없음.
Patent KR-0166471-B1 (KR)
Inventor: HAN CHANG-SUK
IPC: F02D13/00
Filed: 1993-08-30
Granted: 1999-01-15
Abstract: 본 발명은 내연기관의 회전수 및 부하의 크기등의 엔진의 운전에 영향을 주는 각 요소에 따라 밸브의 개폐 타이밍을 제어함으로써 내연기관을 전체의 영역에 최적의 상태로 운전시킬 수 있도록 한 것으로서, 크랭크 축과 연결되어 크랭크 축 회전에 따라 회전하는 회전 샤프트(1)와, 상기 회전 샤프트와 장착되며 상기 회전 샤프트에 따라 회전하는 제1링크(a)와, 상기 제1링크(a)와 제1포인트(100)에서 핀 조인트되어 제1링크(a)의 회전에 따라 좌우 왕복운동을 하는 제2링크(b)와, 벨브 태핏과 핀 조인트 되고 아울러 상기 제2링크(b)와 각변위(α)로 운동하는 제2포인트(102)에서 제2링크(b)와 핀 조인트되며 상기 일정한 변위(α)에 따라 밸브를 여닫는 제3링크(c)로 이루어진 밸브 여닫음 장치(1)와; 상기 밸브 여닫음 장치(1)의 제2포인트(102)의 각변위(α)를 조절하는 제4링크(d)와, 상기 제4링크(d)의 제2포이트(102)와 멀리 있는 다른 끝단과 조인트되어 운전상태에 따라 위치의 변위를 하는 슬라이더(31)를 포함하여 이루어진 타이밍 조절부(3)와; 상기 타이밍 조절부(3)를 구동시키는 구동부(5)와; 엔진의 회전수와 부하등이 운전상태를 감지하는 여러 센서로 부터 감지되는 전기적신호가 전자제어유닛(77)에서 변환된 값을 받아 상기 슬라이더의 위치변위를 결정짓는 구동부(20)에 전달하는 제어부(7)를 포함하여 이루어진 가변 밸브 타이밍 구동 시스템이다.
Patent KR-960006755-B1 (KR)
Title: Automatic brightness regulation apparatus and method
Inventor: KIM JUNG-KYU
IPC: H04N5/57
Filed: 1993-08-31
Granted: 1996-05-23
Abstract: The apparatus comprises a level detecting unit for detecting a maximum value of luminance signal and a minimum value of the inverted luminance signal; a counter for counting the maximum and minimum values of an image signal detected by the level detecting unit; a microcomputer for formulating a look-up table in 3-level function for the contrast of the image signal according to a counting value of the counter, and outputting a contrast switching signal; an analog/digital converting unit for converting an analog luminance signal applied from a buffer into a digital luminance signal; a switching unit for selectively outputting an address signal for the bypass or the access of the look-up table according to the switching signal applied from the microcomputer; an address generating unit for generating an address signal for the access of the look-up table by an output signal from the switching unit; a memory for storing the look-up table and outputting a contrast compensation signal of the look-up table corresponding to the address; and a digital/analog converting unit for converting the image signal and the contrast compensation signal in a digital/analog manner.
Patent KR-960004379-B1 (KR)
Inventor: KINOSHITA MITSUO
IPC: C04B24/16
Filed: 1993-09-24
Granted: 1996-04-02
Abstract: 내용 없음.
Patent KR-960000058-B1 (KR)
Title: Method for recovering metal included in the slag generated from steel making process
Inventor: OH OK-SOO
IPC: C22B1/00
Filed: 1993-10-06
Granted: 1996-01-03
Abstract: The metal recovery method improves working conditions by eliminating pollution from noise and dust due to the atomizing process in the water. The metal recovery method comprises: (A) atomizing the steel-making slags in the water; (B) classifying the atomized slag by size; (C) blowing the classified slag and sorting the heavier slag; and (D) transferring the heavier slag to the smelting furnace, and recovering the metal.
Patent KR-970004043-B1 (KR)
Title: The process for the preparation of 7ñô-£(z)-2-(2-amino-4-thiazolly)-2-(carboxymethoxyimino)acetamido|-3-vinyl-3-cephem-4-carboxylic acid
Inventor: LEE KWANG-HYUK
IPC: C07D501/22
Filed: 1993-10-06
Granted: 1997-03-24
Abstract: Beta-[(z)-2-(2-amino-4-thiazolyl)-2-(carboxymethoxyimino)acetamido -3-vinyl-3-cephem-4-carboxylic acid represented by general formula(I) which is useful for antibiotic is simply synthesized in room temperature with high yield rate and purity in the present invention. Triphenyl phospine and hexa chloroethane are reacted in organic solvent to yield dichlorotriphenylphosphorane, thereafter, said phosphorane is reacted with (z)-2-(2-aminothiazol-4-DLF)-2-(tert-butoxycarbonylmethoxyimino) acetic acid to yield acryloxyphosphoniumchloride derivative. Then, silylation is performed by silylating agent such as chloromethyl silane, hexamethyl disilane, dichloromethyl silane, etc., in solvent such as THF, dichloromethane, etc., in the presence of base such as triethylamine, pyridine, etc., at the temperature range of 10 to 45 degree Celsius to yield compound of general formula(I).
Patent KR-960010228-B1 (KR)
Title: Oil-pressure elevator control valve device
Inventor: CHO YANG-KEUN
IPC: B66B9/04
Filed: 1993-10-25
Granted: 1996-07-26
Abstract: The device is designed to control the quantity of flow supplied to or discharged from a hydraulic cylinder by controlling the number of rotation of a hydraulic pump. The device includes : a hydraulic cylinder (4) of a car (1); a hydraulic hose (5); a stop valve (6); an emergency down manual valve (7); a minimum pressure setting relief valve (8); a pilot operation main check valve (9); a main check valve opening solenoid valve (11); a main check valve closing solenoid valve (12); an unloading solenoid valve (13); and covers (29, 32).
Patent KR-0166094-B1 (KR)
Inventor: DEMARCO JOHN J
IPC: G03F1/26
Filed: 1993-12-22
Granted: 1999-02-01
Abstract: 직접 기록 전자 비임은 레지스트층(11)과 궁극적으로는 위상 변위 마스크 기판 또는 반도체 집적 회로 웨이퍼에서와 같은 기초적인 소재(10)에서 형상을 한정하기 위해 사용된다. 상기 레지스트층은 소재의 상부 주요면상에 위치한다. 특별한 실시예에 있어서, 상기 레지스트층(11)은 폴리비닐알콜(PVA)의 보호층(12) 아래에 위치하며, 유기물 전도층과 같은 접지된 전도층(13)은 보호층(12)상에 위치한다. 조립체의 상부 주요면을 직접 기록 패턴화된 전자 비임에 노출시킨 후에, 다음과 같은 단계가 수행된다. 
     (1) 플라즈마 에칭은 PVA층 두께의 작은 일부분 뿐만 아니라 전도층 두께의 전부를 완전히 제거한다. 
     (2) 다음에, 상기 PVA층은 물에서 용해됨으로서 완전히 제거된다. 
     (3) 또 다른 플라즈마 에칭이 불필요한 잔유물을 포함하여 상기 레지스트층 두께의 적은 일부분을 제거한다. 
     (4) 상기 레지스트층이 현상된다.
Patent KR-960011326-B1 (KR)
Title: Process for the preparation of magnetic tail-board using paper sludge ashes
Inventor: LEE SOON-KUL
IPC: C04B30/00
Filed: 1993-12-24
Granted: 1996-08-22
Abstract: The process comprises mixing 10 wt.% paper sludge incineration ash, 25-30 wt.% agalmatolite, 11-15 wt.% pottery stone, 20-30 wt.% clay, 10-20 wt.% lime stone and 5-10 wt.% feldspar; pulverizing the raw material into a tile having an average particle size of 8-9.2 Pm; and molding under the pressure of 200-300 kg/cm2 and firing at a high temperature of 1,100-1,125 deg.C for 2-3 hours.
Patent KR-100217869-B1 (KR)
Title: Method and apparatus of separating reactor effluent in the preparation of ethers
Inventor: JHON H EASON
IPC: C07C43/04
Filed: 1993-12-29
Granted: 1999-09-01
Abstract: The alcohol, ether and hydrocarbon components of the reaction effluent from various etherifications of C4 or C5 isoolefins with an alcohol such as methanol or ethanol which produce MTBE, ETBE, TAME, or TAEE are separated using identical process equipment. The components are recovered by first removing a portion of the alcohol in a first water extraction step, then fractionating the ether, followed by the removal of additional alcohol in a second water extraction step and then fractionating the alcohol. Hydrocarbons are recovered from a extract stream of the second water extraction step.