baber/WOPTO huggingface dataset:
Patent KR-870000809-B1 (KR)
Title: Process for the preparation of a 1,4-dihydropyridine
Inventor: CAMPBELL SIMON FRASER
IPC: C07D211/00
Filed: 1983-03-08
Granted: 1987-04-20
Abstract: =-(CH2)2-, -(CH2)3-, -CH2CH(CH3)- or -CH2(CH3)2-; R=aryl or heteroaryl; R1,R2=C1-4alkyl or 2-methoxyethyl; R3=H, C1-4 alkyl, 2-(C1-4 alkoxy)ethyl, cyclopropylmethyl, benzyl or -(CH2mCOR4; m=1-3; R4=H, C1-4 alkoxy or -NR5R6; R5,R6=H or C1-4 alkyl) are prepd. e.g. for R3 as H, by reducing the corresp. azides. (I) are anti-ischaemic, antihypertensive and vasodilating agents. The usual oral dose is 2-50 mg/day.
Patent KR-850001841-B1 (KR)
Title: Cathode electrodes device
Inventor: LEE HO
IPC: H01J1/13
Filed: 1983-11-28
Granted: 1985-12-26
Abstract: A ceramic body is built into a cathode electrode for quick operation and to save power. The ceramic body consists of PbO 70%, B2O3, 10%, ZnO 5%, and SiO2 15% in a cylindrical shape. An installed heater (8) is covered with a cap (1) and sealed with an oxide film (2). Aluminum is coated to a thickness of 1000 - 2000A. on the inner surface (7), by the vacuum metallizing method. The outer surface (9) is clad in a metal supporter (10). Then, the ceramic body (6) is fused at 250≰C. and recrystallized at 450≰C.
Patent KR-870000772-B1 (KR)
Title: Method of producing for polybutylene terephthalate
Inventor: LEE KI-JONG
IPC: C08G63/16
Filed: 1984-12-17
Granted: 1987-04-15
Abstract: This invention relates to thermoplastic polybutylene terephthalate whose main component is 1,4-butanediol. Oligomer mixt. is prepd. by reaction of 1,4-butanediol with organic acid, and then the oligomer is polymerized to polybutylene terephthalate. The oligomer is distilled to give pure oligomer. The distillation is performed for 30mins at 170-250≰C, 100mmHg-0.1mmHg. In this process, the polymerization time is shortened and homogeneity of product is increased.
Patent KR-890000324-B1 (KR)
Title: Power transmission belt
Inventor: MASHIMO SATOSHI
IPC: F16G5/06
Filed: 1985-07-25
Granted: 1989-03-14
Abstract: In a power transmission belt having a row-edged inner compression section and an outer tension section, the improvement is that; the compression section comprises a rubber compsn. contg. dispersed ceramic powder at 2-100 phr, the powder being Sic, Tic Bc, Wc, SiN, AlN, BN, TiN, Al 203, ZrO2 or BeO.  The belt may also comprise a cushion rubber layer between the compression and tension sections, tensile cords being embedded in the cushion rubber layer which also contains 2-100 phr ceramic powders.  Pref. rubber contg. the ceramic powder is chloroprene, SBR or natural rubber. The rubber may also comprise C black, transverse reinforcing staple length fibres, softening agent, ageing inhibitor, working and oil, adhesion enhancer, vulcanisation accelerator, S, coupling agent, Zn and/or ethylenethiourea.
Patent KR-950014524-B1 (KR)
Inventor: MATSUDA YUKINOBU
IPC: E02F9/22
Filed: 1985-11-26
Granted: 1995-12-05
Abstract: 내용 없음.
Patent KR-930011282-B1 (KR)
Inventor: WIDE JOHN B
IPC: A61K31/351
Filed: 1986-04-29
Granted: 1993-11-29
Abstract: 내용 없음.
Patent KR-890003762-B1 (KR)
Title: Modem trans/receiving circuit
Inventor: KIM NAK-MIN
IPC: H04L27/10
Filed: 1986-05-09
Granted: 1989-10-04
Abstract: The full  duplex type modem with dual speed of 300/1200 bps for reducing the error occurance rate when dibit-modulating the transmitted data comprises a CPU (10), a D/A converter (20), a MODEM circuit (30), a band pass filter (40), a hybrid circuit (50), a data access arrangement circuit (60), multiplexers (70,90), a demodulation circuit (80), and a mode control/selection circuit (400).  The data access arrangement circuit is for matching the transmission line with the telephone line and the mode circuit (400) provides the filtering selection signal of the receiving/transmitting center frequency according to the logic of the mode selection signal supplied from the CPU.
Patent KR-890004657-B1 (KR)
Title: Fire sprinkler head
Inventor: KIM HYON-WOO
IPC: A62C37/08
Filed: 1986-08-30
Granted: 1989-11-24
Abstract: The fire sprinkler head mounted on the ceiling comprises a bearing unit(1), a holding member(3) for supporting the bearing unit, a rotatable disk(5) with vanes(5,) to be received in the holding member, and rotating  member(6) integrally formed with a shaft(4) to be fitted to the bearing unit.  The rotating member constituted by a hollow ball member has several water inlet holes(7) around the shaft and a number of core-shaped protrusions(8), each having a water spraying hole(8,), on outer surface of the hollow ball member.  The sprinkler head may be rotated by feeding water through the rotatable disk with vanes as well as sprinkling water.
Patent KR-900001869-B1 (KR)
Title: Pumping installation
Inventor: PARK HYUN-SOO
IPC: F04B1/00
Filed: 1987-01-20
Granted: 1990-03-26
Abstract: The equipment is used for supplying a constant infinitesimal flux of liquid without an effect to a level of a service tank. The equipment comprises a pinion gear (1a) installed on a rotary shaft (1), rack gears (2e,2e') geared with the pinion gear and alternatively operating pistons (2,2'), a pipe (9) connected to a cylinder (2b') via a check ball (8), and a buffer tank (3) connected to a hole (2c') of a cylinder (2c') with a pipe (4) and also connected to an external service tank with a pipe (5).
Patent KR-910000109-B1 (KR)
Inventor: YAMAZAKI SHUNPEI
IPC: G11B13/00
Filed: 1987-03-03
Granted: 1991-01-21
Abstract: 내용 없음.
Patent KR-950001882-B1 (KR)
Title: Magneto-optical recording apparatus
Inventor: HORIMAI HIDEYOSHI
IPC: G11B13/04
Filed: 1987-04-21
Granted: 1995-03-04
Abstract: A magnetooptical recording apparatus is disclosed which is capable of performing real-time overwrite operation. The apparatus comprises a laser beam (3) and focusing parts (4) thereof and a pulse magnetic field generator device (6) provided on both sides of a magnetooptical recording medium (1) respectively. The laser beam (3) and focusing parts (4) thereof are formed of an objective lens (5) connected to a moving coil (8) which is provided in a magnet (7), thus the objective lens (5) is movable relative to a magnetic layer (1A) of the magnetooptical recording medium (1) by the interaction between the magnet (7) and the moving coil (8). The magnet (7) generates and applies a D.C. magnetic field of one polarity perpendicular to the magnetic thin film (1A) around a point (P) where the laser beam (3) is focused. While the pulse magnetic field generator device (6) generates pulse magnetic field of the opposite polarity modulated by information signal around the point (P) where the laser beam (3) is focused. Thus one and opposite polarity magnetic field pulse row obtained by a sum of the D.C. magnetic field and the pulse magnetic field is applied to the magnetic thin film (1A) upon laser beam (3) irradiation to perform the real-time overwrite operation.
Patent KR-890003712-B1 (KR)
Title: Method for preserving peroxidase by ciclopirox
Inventor: CHONG HONG-KUN
IPC: C12N9/02
Filed: 1987-07-10
Granted: 1989-09-30
Abstract: A usage of ciclopirox olamine is presented.  thus, a mixt. contg. gentamycin and ciclopirox olamine showed a synergistic effect in a preservation and a stability of peroxidase and its related compds.
Patent KR-900001765-B1 (KR)
Title: Pulse code modulation coder decorder
Inventor: KIM BONG-MAM
IPC: H03M7/30
Filed: 1987-07-27
Granted: 1990-03-19
Abstract: The converter includes a code decoder (10) for transmitting 8-bit serial condensed digital data, a shift register (20) storing the digital data for parallel processing, a 3x8 codec (30) for decoding the 3-bit data to 8-bit data, a 4x9 codec (40) for decoding the 4-bit data to 9-bit data, and a converter (50) for linearizing the output signal of the codecs (30,40).  Step bit data (Q0-Q3) is applied to converter (50) and decoded to the 9-bit data (D1-D8).  Code bit data (Q4-Q6) is decoded to 8-bit data (T0-T7) which is applied to the convertr accompanied by the 9-bit data and sign bit (Q7).
Patent KR-910000497-B1 (KR)
Inventor: HABENS KARL B
IPC: B29C47/88
Filed: 1987-09-03
Granted: 1991-01-26
Abstract: 내용 없음.
Patent KR-960007998-B1 (KR)
Title: Method and apparatus for control of fluorescent lamps
Inventor: HERBSLEB PEER
IPC: H05B47/11
Filed: 1987-10-30
Granted: 1996-06-17
Abstract: A device for producing alternating electric current of high frequency for power consumers such as fluorescent tubes (Ly1, Ly2) comprises a transformer with a winding (n3) connected in series with an output terminal (e) and active electronic components such as transistors (T1, T2) controlling the output current, the transistors being controlled by electric voltages produced by inductive feedback in feedback windings (n11, n12). Magnetic saturation is utilized to modify the inductive relationship in such a way that the transistors (T1, T2) cyclically change the direction of the output current. The feedback takes place in two magnetic cores (Tr1, Tr2) of the transformer, each core being provided with at least one further electric magnetization winding designated a command winding (n5, n6) as electric current is fed through the command windings to control magnetic saturation of the magnetic cores (Tr1, Tr2). As a result, combined control of the frequency and of the active electric power in the fluorescent tubes (Ly1, Ly2) is possible so that the luminous power may be controlled over a wide range while suitably high voltages can be maintained to ignite the tubes properly.
Patent KR-900006680-B1 (KR)
Inventor: SATO HIDEKI
IPC: H05K3/38
Filed: 1988-03-30
Granted: 1990-09-17
Abstract: 내용 없음.
Patent KR-930000641-B1 (KR)
Title: Pressure swing absorption control method and apparatus
Inventor: STOCKER JORG
IPC: B01D53/04
Filed: 1988-06-15
Granted: 1993-01-29
Abstract: The present invention provides a method and apparatus for automatically controlling product repressurization in a pressure swing adsorption (PSA) process. According to the invention the same valve employed for withdrawing product from a bed during adsorption is employed to feed product gas to that bed during product repressurization. This enables the elimination of several valves, including a system-dependent valve, thereby improving system reliability. The same controllable valve may also be used to control the pressure in the PSA system.
Patent KR-920010008-B1 (KR)
Inventor: FATTORE VITTORIO
IPC: B01J37/02
Filed: 1988-07-26
Granted: 1992-11-10
Abstract: 내용 없음.
Patent KR-970000241-B1 (KR)
Inventor: FUSIU MORIO
IPC: C07H19/06
Filed: 1988-11-15
Granted: 1997-01-08
Abstract: 내용없음.
Patent KR-910008980-B1 (KR)
Title: S.o.g. film harden method using ultra-violet lay
Inventor: PARK SUNG-KI
IPC: H01L21/316
Filed: 1988-12-20
Granted: 1991-10-26
Abstract: The  mfg.  method  of  multi-layer  metal  structure  for  a semiconductor device is characterized by depositing an  insulating material and a first metal  layer  on  the  silicon  substrate  in order, forming a LTO oxide film on the upper and side  surface  of the metal layer, depositing a SOG film on the LTO film, forming  a second STO oxide film on the SOG film,  and  depositing  a  second metal layer on the second LTO film  to  form  a  pattern.  In  the method. The SOG film is hardened by the  ultraviolet  irradiation. The hardening method prevents  a  generation  of  the  crack,  and improves an insulating property.
Patent KR-930001885-B1 (KR)
Title: Page tables in virtual memory
Inventor: STUART ROBERT E
IPC: G06F12/1027
Filed: 1989-06-05
Granted: 1993-03-19
Abstract: A method for translating a virtual address into a physical address, in which page tables used in the translation process are referenced by virtual addresses. Typically, a translation mechanism includes a translation buffer that, given a virtual address, can sometimes provide the corresponding physical address. A translation-buffer miss is said to occur when the translation buffer is presented with an address for which it can not provide the translation. When such a miss occurs, the translation mechanism obtains the translation by reading the page tables. When the translation mechanism attempts to read the page tables from virtual memory, a second-order miss can occur. The difficulty of infinite recursion of misses is avoided by handling second-order misses differently from first-order misses. When a second-order miss occurs, the translation mechanism uses a prototype page table entry and the virtual address of the page table entry to produce a physical address without using the page tables. Since consecutive pages of the page table in virtual memory reside in consecutive page frames in physical memory, a virtual address in the page tables can be translated to a physical address by adding the page frame number from the prototype page table entry to the virtual page number in the virtual address. The prototype page table entry contains a page-frame number that is equal to the page-frame number of the first page of the page table minus the virtual-page number of the first page of the page table.
Patent KR-940002635-B1 (KR)
Inventor: IKEJIRI MASAHISA
IPC: G01N27/12
Filed: 1989-06-23
Granted: 1994-03-26
Abstract: 내용 없음.
Patent KR-910008815-B1 (KR)
Inventor: HUKUYAMA KEIJOU
IPC: B32B27/36
Filed: 1989-07-06
Granted: 1991-10-21
Abstract: 내용 없음.
Patent KR-920001887-B1 (KR)
Title: Calls simulation method of electronic switching center
Inventor: CHO MU-HO
IPC: H04M3/22
Filed: 1989-07-08
Granted: 1992-03-06
Abstract: The   method   simulates   various   subscriber   calls   and inter- station relaying calls. The method includes  the  steps  of: selecting desired simulators to define them as simulation  control groups for the purpose of using them  as  regulating  units  (20); preparing  and  inputting  simulation  programs  (21);   inputting simulation digits (22); tracing simulation signals (24); executing the  simulation  programs  (25);  terminating  the  operation   or advancing to the next step depending on the occurrence of an error (27); and terminating the operation by releasing the simulators.
Patent KR-0136912-B1 (KR)
Title: Vertical manufacture method of a capacitor using side wall of low temperature grown oxide film
Inventor: YEU INN-SUK
IPC: H01L27/10
Filed: 1989-08-23
Granted: 1998-04-24
Abstract: A fabrication method of vertical capacitors is provided to improve cell capacitance using a sidewall of low temperature oxide. The fabrication method of vertical capacitor comprises the steps of: preparing a silicon substrate having transistors; forming an oxide layer and a photoresist pattern(2) having good etching selectivity compared to the oxide layer; depositing a low temperature oxide layer(3) on the entire surface of the resultant structure; forming a sidewall(7) by blanket etching the low temperature oxide layer(3) and the photoresist pattern(2); and forming a vertical storage node(4) by depositing and etching a polysilicon.
Patent KR-920008657-B1 (KR)
Title: Degaussing circuit
Inventor: PARK CHANG-SU
IPC: H04N9/29
Filed: 1989-11-02
Granted: 1992-10-08
Abstract: The  demagnetization  circuit  for  removing  the   magnetic generated froma shadow mask or a frame of  the  cathode  ray  tube comprises a demagnetizing  pulse  generater  (10)  for  sending  a constant current to a demagnetizing coil (50) adjacent to a  panel of the CRT to generate the magnetic field, a controller  (30)  for supplying the demagnetizing pulse  generated  from  the  generator (10) to the demagnetizing coil (50) in a constant time and a  zero point  detector  (40)  for  detecting   a   point   crossing   the demagnetizing pulse generated from the generator and a zero  point to interrupt the demagnetizing pulse supplied to the coil (50).
Patent KR-0144366-B1 (KR)
Inventor: NOGI TOSHIHARU
IPC: F02M69/04
Filed: 1989-11-10
Granted: 1998-08-17
Abstract: 공기 분사수단은 연료 분사판의 부근에 제공된다. 실린더내에 혼합 공기연료를 함유한 가솔린 스프레이의 사이즈 직경이 연료 분사판 및 공기 분사수단에 의해 제어된다. 연료 분사판이 가솔린 엔진의 흡기 행정시에 작동될 때, 가솔린 스프레이의 사이즈 직경은 스파크프러그의 방전전극 부근의 일부에서 대체적으로 40㎛와 같은 소정 값으로 제어된다. 가솔린 스프레이의 사이즈 직경이 임의로 제어되기 때문에, 좋은 점화특성을 갖는 가솔린 스프레이 사이즈의 혼합 공기연료가 스파크프러그의 방전전극 부근에 선택적으로 분포된다. 엔진에 대한 안정된 점화조건이 녹킹(knocking) 발생 없이 유지되고, 고온 효율을 갖는 엔진이 획득된다.
Patent KR-920006389-B1 (KR)
Title: Four port type tester
Inventor: PART CHAN-HYON
IPC: G01R1/38
Filed: 1989-11-30
Granted: 1992-08-03
Abstract: A four terminal type measuring device  includes  a  measuring body comprising a DC power source and  a  detector,  and  a  cable connected to both DC power source and detector to send  the  value measured to the detector. The cable includes a matcher,  and  four terminals are formed between the measuring body  and  the  macher. The length between the matcher and the probes is  very  short,  so that remove line resistance and  impedance  error.  The  measuring device is able  to  measure  impedance  accurately  regardless  of length and state of cable for measurment.
Patent KR-930011484-B1 (KR)
Title: Magnetic apparatus
Inventor: KU HAN-SO
IPC: A61N2/08
Filed: 1989-12-19
Granted: 1993-12-08
Abstract: The device comprises a fixing plate (1) of plastic,  a  steel plate (2) attached to the fixing  plate,  and  two  magnet  fixing members (4) in which permanent magnets (6),(6a) are installed. The guiding grooves (3),(3a) and guiding pieces (5) enable two  magnet members to move on the surface of the  steel  plate.  The  control units are contacted to the energy vein  in  finger  or  points  to supply magnetic force.  The  magnetic  force  produces  biological magnetic force to contribute to health.
Patent KR-970005112-B1 (KR)
Title: Graft copolymer and method for manufacturing thereof
Inventor: LEE YONG-JOON
IPC: C08G81/00
Filed: 1989-12-27
Granted: 1997-04-12
Abstract: The graft copolymer is represented by the general formula(I) in which R is hydrogen or alkyl having 1-5 carbon atoms, x,y,z and m are an integer of 1 to 500. The graft copolymer is prepared by copolymerizing a chlorosulfonyl polyolefin and a N-carboxylic acid anhydride, which can be freely controlled toward hydrophilic or hydrophobic property according to a graft ratio and uses. The graft copolymer have excellent resilience and provides a non-crystalline elastomeric graft copolymers.
Patent KR-920008320-B1 (KR)
Title: Apparatus for implementing analog loop back function of cept system
Inventor: LEE JONG-HAENG
IPC: H04J3/14
Filed: 1989-12-30
Granted: 1992-09-26
Abstract: The analog loopback circuit is for checking  the  abnormality of audio signal loop unit of opponent station by converting analog output terminal of opponent station to  input  terminal  utilizing bit 4-8 of 0 time slot of 0 frame. The circuit includes a key  pad units  (10,20)  for  receiving  channel  data   and   transmission instruction, selection signal transmitters (40,41,50) for  sending channel selection signal and sub-rack selection signal, a  display (30) for displaying  number  of  selected  channel  and  sub-rack, analog loopback signal generators (80,90)  for  generating  analog loopback code signal, a data clear unit  (70)  for  sending  clear signal to  the  analog  loopback  signal  generators  when  preset channel and subrack boundary exceed, and  analog  loopback  signal detectors (100,110) for detecting analog loopback signals.
Patent KR-910007052-B1 (KR)
Inventor: SASAKI DAKAO
IPC: G05B19/408
Filed: 1988-07-21
Granted: 1991-09-16
Abstract: 내용 없음.
Patent KR-0132665-B1 (KR)
Title: Workpiece carrier for disk-shaped workpiece process space
Inventor: RUDOLF WAGNER
IPC: C30B25/14
Filed: 1990-05-04
Granted: 1998-04-13
Abstract: The elevation platform (1) has a workpiece support (5) guided movably up and down in a housing (2), this support making it possible for a disc-like workpiece (6) to be transported into a process chamber (36) of a vacuum installation. In order to correct the position of the workpiece (6) deposited by a machine onto the workpiece support (5) and to secure the workpiece during transport, use is made of holding members (30) arranged on opposite sides on the elevating platform (1). These each consist of a bar (20) on the end of an extension arm (14) which is arranged on a shaft (10) mounted rotatably in the elevating platform, this shaft being rotatable within a swivel region by means of a motor (12), in order to bring the holding member (30) into one of two different positions. The position of the workpiece (6) on the workpiece support (5) can be corrected by means of two holding members (30) arranged next to one another on the one side of the elevating platform and a holding element arranged on the opposite side of the elevating platform. A disc (29) arranged at the end of each bar (20) of the holding member (30) engages over the edge of the workpiece and secures this during upward conveyance. The holding member (30) is then swivelled outwards by means of a motor and comes to lie with the disc (29) under a cover (34), so as to be protected from the effects of the surface treatment of the workpiece (6) in the processing chamber (36). The workpiece support (5) includes a heating means (50) having a heating spiral (56) arranged inside a groove (52) in a plate (51). Flowing through the groove (52) is a gas which emerges through small bores provided in the plate (55) covering the groove, so as to form a gas cushion which serves as a heat-conducting means and for a uniform heating or cooling of the workpiece. 
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Patent KR-0184639-B1 (KR)
Inventor: MYDILL MARC R
IPC: G01R31/319
Filed: 1990-06-21
Granted: 1999-04-15
Abstract: 재구성 가능한 자원 체계는, 검사 시스템 자원의 제품- 혼합 의존 할당을 허용함으로써 검사 시스템의 유용성을 향상시킨다. 검사 시스템 자원은 상이한 핀 수를 가지는 수 개의 장치 유형을 동시에 검사하도록 구성될 수 있다. 구성은 핀 수에  기초하는 다양한 제품을 수용하도록 변경될 수 있다.
Patent KR-100211852-B1 (KR)
Inventor: CHUKADADERU YODAKASHI
IPC: H01L23/15
Filed: 1990-08-01
Granted: 1999-08-02
Abstract: 신뢰성이 우수한 전자회로기판은 그 표면상에 직접적으로 도전성 회로, 저항, 및 캐패시터 등의 막상 소자를 갖는 다공질 세라믹 소결체로 구성된다. 다공질 세라믹 소결체의 기공에는 수지로 채워지며, 막상 소자의 하부면은 쐐기형으로 밀착되어 다공질 세라믹 소결체의 표면상의 기공 또는 오목부에 끼워진다. 이러한 전자회로기판을 형성하는 방법은 다공질 세라믹 소결체의 표면상에  직접적으로 막상 소자를 형성하는 단계를 포함한다. 그후 쐐기형으로 밀착하여 다공질 세라믹 소결체의 표면상의 기공 및 오목부에 막상 소자의 하부면을 끼우도록 수지로 다공질 세라믹 소결체의 기공을 세운다.
Patent KR-960016678-B1 (KR)
Inventor: VALENTY VIVIAN B
IPC: A61K8/81
Filed: 1990-08-14
Granted: 1996-12-20
Abstract: 요약없음
Patent KR-930008876-B1 (KR)
Title: High voltage generating circuit of semicondcutor device
Inventor: OH JONG-HUN
IPC: H03K17/16
Filed: 1990-08-17
Granted: 1993-09-16
Abstract: The device reduces the threshold voltage loss of the clamping device and charge transfer device and improves the  effectiveness. The device includes: the 1st clamping means (51) for inputting the 3rd oscillating  signal  (φosc23)  from  an  oscillating   signal generator; the 2nd clamping  means  (52)  for  inputting  the  4th oscillating signal (φosc24); the 1st charging pumping  means  (53) for inputting the 2nd oscillating signal (φosc22); the 2nd  charge pumping means  (54)  for  inputting  the  1st  oscillating  signal (φosc21) and the charge transfer means  (55)  for  connecting  the input to the output  of  the  charge  pumping  means  (53,54)  and clamping means (51,52).
Patent KR-940000088-B1 (KR)
Inventor: IMAMURA SABURO
IPC: G02B1/04
Filed: 1990-09-26
Granted: 1994-01-05
Abstract: 내용 없음.
Patent KR-950003143-B1 (KR)
Inventor: AWATA YOSHINORI
IPC: H03H17/06
Filed: 1990-09-27
Granted: 1995-04-01
Abstract: 내용 없음.
Patent KR-930006946-B1 (KR)
Title: Method for producing crystal of n-acetyl-l-glutamine
Inventor: IM HUN
IPC: C07C231/24
Filed: 1990-11-20
Granted: 1993-07-24
Abstract: The crystal of N-acetyl-L-glutamine is grown  by  (a)  mixing L- glutamine with glacial acetic acid and  anhydrous  acetic  acid, (b) adding 4-6 % pure water into the mixt.,  and  reacting  at  41 deg.C for 5 hrs, (c) cooling the reactant and dehydrating, and (d) washing the dehydrated reactant and drying  to  obtain  the  final product.
Patent KR-100222113-B1 (KR)
Inventor: FRAY WILLIAM S
IPC: F21V5/00
Filed: 1990-12-06
Granted: 1999-10-01
Abstract: 통과식 빔 패턴을 발생시키는 차량용 헤드라이트 조립체가 초점 (14)을 갖는 포물체 또는 타원형 발산 반사경 (10)을 지닌다. 전구 필라멘트 (24)가 초점 (14)후방에 완전히 배치되어 있으며, 방산하는 빔이 반사경 (10)으로부터 반사되도록 필라멘트와 반사경사이에 삽입되는 어떠한 광 차폐물도 지니지 않는다. 렌즈요소 (30)는 필요한 광 빔 패턴을 제공하도록 프리즘 부분을 통과하는 광을 하향으로 굴절시키는 프리즘 부분 (A 내지 C)을 지닌다.
Patent KR-0157218-B1 (KR)
Inventor: LEVASSEUR JOSEPH L
IPC: G07F11/18
Filed: 1989-08-09
Granted: 1999-02-18
Abstract: 내용없음.