baber/WOPTO huggingface dataset:
Patent KR-880001862-B1 (KR)
Title: Multiple writing appliances
Inventor: KAGEYAMA HIDEHEI
IPC: B43K24/10
Filed: 1985-12-27
Granted: 1988-09-23
Abstract: The multiple writing tools assembly includes a number of writing mediums like pencil and various ball-point pens in a single body. When the assembly is positioned horizontally, a certain writing medium at bottom of the case is selected by a selecting ring (17). When a knock cap (39) is pushed, the corresponding writing medium is pushed out and a stopper (30) is locked out with a locker (27).  When a clip (3) is pushed down or out, the locker releases the stopper so that the writing medium is returned by the force of a spring (20).
Patent KR-900008186-B1 (KR)
Title: Variable page rom
Inventor: LUHRMANN GRAIG J
IPC: G11C17/12
Filed: 1986-07-22
Granted: 1990-11-05
Abstract: The basic ROM circuit is used to provide memories of increased capacity for pre-existing systems having different fixed numbers of address inputs. The appropriate page configuration is selected to accommodate the signal of address inputs in the system. The system is adapted to generate a page address signal having the required number of bits on the data bus. The selected page configuration is obtained by mask programming the address decoder and input buffer circuites. The page address signal from the data bus is routed through the data transfer buffers and stored in a RAM for use in conjunction with the row and column address inputs.
Patent KR-900002308-B1 (KR)
Title: Automatic phase control circuit
Inventor: GWANO MISUMO
IPC: H04N9/45
Filed: 1986-09-16
Granted: 1990-04-10
Abstract: a signal input circuit for receiving an input signal which changes its phase alternately between first and second phases with a predetermined input cycle; means for generating a reference signal which changes its phase alternately between third and fourth phases with a reference cycle of predetermined alternation timing; a phase locked loop for locking the first and second phases of the input signal into the corresponding third and fourth phase of the reference signal.
Patent KR-900005054-B1 (KR)
Title: Stable compositions containing imides
Inventor: CHAUDHARI MOHAMMAD A
IPC: C07D207/448
Filed: 1986-12-16
Granted: 1990-07-19
Abstract: Thermosetting compsn. contains a mixt. or prepolymer reaction prod. of (a) diaminophenylindane-bis-maleimide and (b) amine, alkenyl phenol and/or alkenyl phenol ether. The compsn. contains 0.05-2.0. pref. 1 mole (b) per mole (a). (b) may be a mixt. of the amine and phenol in 19:1 to 1:19 to 1:9 wt. ratio. The compsn. is claimed for use in laminates impregnated with the mixt. or prepolymer. It can be used for making prepregs, composites, adhesives, circuit boards, castings, mouldings, (tough) coatings etc. The compsn. has high reactivity, good solubility in common solvents and good stabiliy in the melt or in soln.
Patent KR-910009528-B1 (KR)
Inventor: ADAMS VITOR J
IPC: C09J5/02
Filed: 1985-06-21
Granted: 1991-11-21
Abstract: 내용 없음.
Patent KR-950014960-B1 (KR)
Title: Device for driving tools in orthopepil surgery
Inventor: ALEXON CHARLES E
IPC: A61B17/16
Filed: 1987-04-02
Granted: 1995-12-20
Abstract: An air motor (21) driven device (10) adapted for driving tools (11, 12, 13, 14) used during orthopedic surgery by rotating a driven shaft (16, 17, 18, 19) on the tool. The device (10) has first and second spaced parallel output shafts (23, 24) driven at different speeds, at least one of which shafts (23, 24) can releasably engage the driven shaft (16, 17, 18, 19) of the tool (11, 12, 13, 14). The second shaft (24) has a through central opening (28) accessible from its end (29) opposite its output end (26) so that the device (10) can power pin or wire drivers or reamers guided on a guide wire. An attachment mechanism for releasably attaching a tool (11, 12, 13, 14) to the device (10) is provided which receives an oval portion (46, 47, 48, 49) of the tool (11, 12, 13, 14) in a mating socket (45), and in addition to trigger (84) operated valves (97) for operating the air motor (21), provides a valve (99) for shutting off or throttling the gas inlet line (80).
Patent KR-910004224-B1 (KR)
Inventor: HIRAKO OSAMOO
IPC: G01N27/407
Filed: 1987-07-29
Granted: 1991-06-24
Abstract: 내용 없음.
Patent KR-950000380-B1 (KR)
Inventor: BERNARD JEAN-LUC
IPC: C04B26/04
Filed: 1987-09-30
Granted: 1995-01-16
Abstract: 내용 없음.
Patent KR-900006216-B1 (KR)
Title: Kanamycin tannate its preparation and its use as antibiotic-antidianjetic and pharmaceutical compositions
Inventor: PATANO WALTER
IPC: C07H15/234
Filed: 1987-10-24
Granted: 1990-08-25
Abstract: Kanamycin tannate is prepd. by reacting kanamycin base MeOH soln. (A) with tannic acid MeOH soln. (B) (wt. ratio of A:B= 3:2) at room temp. and atmospheric pressure for 5 hrs.. (A) is obtd. by reacting kanamycin sulfate monohydrate with methanol suspension of ammonia gas. (B) is purified by gallic acid and pyrogallol. The kanamycin tannate is useful as antibacterial agent with antidiarrhoeal activity.
Patent KR-950013094-B1 (KR)
Title: Optically active compounds having a plurality of asymmetric carbon atoms
Inventor: ONO KOJI
IPC: C07C69/708
Filed: 1988-03-04
Granted: 1995-10-24
Abstract: Optically active compounds for use in chiral liquid crystal compositions have the formula: <CHEM> in which R<1> is a straight or branched alkyl, alkoxy, alkanoyl, alkanoyloxy, alkoxycarbonyl or alkoxycarbonyloxy group each containing up to 15 carbon atoms, a hydrogen or halogen atom or a cyano group;   R<2> is an optically active group having from 2 to 20 skeletal atoms in its chain; <CHEM>  (wherein X is hydrogen or halogen atom or a cyano group):     l  is an integer of from 1 to 10;    m is o or 1;   and * indicates an asymmetric carbon atom. a
Patent KR-910007391-B1 (KR)
Title: Selection control circuit of brightness and chrominance signal
Inventor: SIM DAE-YUN
IPC: H04N9/78
Filed: 1988-05-18
Granted: 1991-09-25
Abstract: The circuit for selecting type R-Y and B-Y signal  with  time equality in sequence, combining the Y,R-Y and B-Y signals  into  a composite signal and regarding the frequency band of  each  signal comprises a counter (10) for generating the 1st-8th state  signals by dividing the A/D conmverted clock,  a  start  signal  generator (20) for generating the conversion start signal at the time of 1st state signal, a Y signal selector (30) for latching the  luminance selection signal during the clock period, a  R-Y  signal  selector (40) for latching the R-Y  selection  signal,  and  a  B-Y  signal selector (50) for latching the B-Y selection signal.
Patent KR-920003505-B1 (KR)
Inventor: DANAKA DEZULO
IPC: G11B25/06
Filed: 1988-05-28
Granted: 1992-05-01
Abstract: 내용 없음.
Patent KR-960000985-B1 (KR)
Inventor: SAKAI MOTOHIRO
IPC: B29C45/00
Filed: 1988-07-15
Granted: 1996-01-15
Abstract: 내용 없음.
Patent KR-920000832-B1 (KR)
Title: Method of fabricating bicmos transistor
Inventor: KIM MYUNG-SONG
IPC: H01L27/08
Filed: 1988-07-25
Granted: 1992-01-30
Abstract: The method for integrating a self-aligned NPN transistor  and a poly- Si CMOS  transistor  simultaneously,  comprises  forming  a divice separating region and a p-well region by using  a  mask  to reduce the number of process and to increase the concentration and size of the device separating region, and self-aligning an emitter and a base of the NPN transistor by using a nitride. The P+ device separating regions (19a,19b) and P-well region (2c) are formed  by coating a photoresist (18) onto the nitride layer (17) on which an active region is formed, etching the photoresist layer to  form  a window, implanting high concentration of boron  ions  thereon  the form the device separating region and implanting low concentration of boron ions thereon the form the P-well region.
Patent KR-910006968-B1 (KR)
Inventor: IWASAKI TAKEMASA
IPC: B65G1/07
Filed: 1988-08-08
Granted: 1991-09-14
Abstract: 내용 없음.
Patent KR-920000094-B1 (KR)
Inventor: KIM GI-CHUL
IPC: H04Q11/04
Filed: 1988-08-03
Granted: 1992-01-06
Abstract: 내용 없음.
Patent KR-960012682-B1 (KR)
Inventor: YONEDA GENJI
IPC: B66B5/02
Filed: 1989-03-30
Granted: 1996-09-24
Abstract: 요약없음
Patent KR-0158675-B1 (KR)
Inventor: YAZAWA YOSHIAKI
IPC: H05K3/00
Filed: 1989-09-04
Granted: 1998-12-15
Abstract: 스크린 인쇄에 의하여 인쇄배선기판(1)에 원호형상패턴(2B),(2C)를 보유하는 배선회로패턴(2),(2A)을 2열 이상 배치하고 이 각 배선회로패턴에 대응하는 제품영역의 외주가장자리 및 상기한 원호형상패턴(2B),(2C)의 중앙부분을 프레스 타발가공에 의하여 절단하는 인쇄배선기판(1)에 있어서, 배선회로패턴(2),(2A)에 있어서의 각 제품영역의 기판절단면 위치의 근방에 인쇄패턴 어긋남의 허용범위의 양부를 판별하는 어긋남 검출패턴(5),(5A)을 상기한 원호형상패턴(2B),(2C)의 1개 이상인 가상중심선을 따르고, 또한 원호형상패턴(2B),(2C)과 동심원 위치에 2이상으로 인쇄한 것을 특징으로 하는 인쇄배선기판.
Patent KR-910010070-B1 (KR)
Title: Manufactured method of wig
Inventor: LEE GEUN-WOO
IPC: A41G3/00
Filed: 1989-09-05
Granted: 1991-12-14
Abstract: A thread (2) is swed onto a sheet of e.g.  vinyl  in  such  a manner as to form loops (3) so that strings of artificial hair are passed through them to be tied onto the thread with knottings  for firm fastening of the artificial  hair  to  the  sheet.  The  hair planted sheet is cut as desired to fit to the intended wig.
Patent KR-930000762-B1 (KR)
Inventor: DODA HARUKI
IPC: H01L27/10
Filed: 1989-10-19
Granted: 1993-02-01
Abstract: 내용 없음.
Patent KR-0169961-B1 (KR)
Inventor: DIRNE FRANCISCUS WILHELMUS ADR
IPC: G11B5/31
Filed: 1989-11-18
Granted: 1999-04-15
Abstract: 본 발명은 다수의 결정질 주층과, 다수의 비결정질 보조층을 포함하는 연자성 다층막에 관한 것이고, 상기 주층은 자기성분으로써 철을 거의 독점적으로 포함하고, 상기 보조층은 자기성분으로 주로 철을 포함한다. 상기 다층막은 온도 처리에 의하여 거의 영향을 받지 않는 낮은 자기변형 상수를 나타낸다. 이러한 막은 자기헤드에 사용하기에 매우 적절하다.
Patent KR-910009650-B1 (KR)
Title: A apparatus of blower for vacuum dehydration and washing
Inventor: SUH YONG-GYO
IPC: D06L1/12
Filed: 1989-11-30
Granted: 1991-11-25
Abstract: The blowing apparatus for using a discharging air  of  vacuum pump comprises: a vacuum pump (2) mounted  on  a  base  plate  (1) operated by a motor (3); a cleaner (7) mounted on the suction  pip e(5) of the pump (2) and connected with a dehydroating  pipe  (16) of the dehydrator, a filter plate (9) having filtering pores  (9a) and mounted in the cleaner  (7)  having  a  cover  (7');  a  noise arresting box (10) mounted on the discharge pipe (6) of  the  pump (2) and having a noise arresting plate (11) attached on top of the inflow pipe (10a) and an air blow guide pipe (12) having air  blow holes (13).
Patent KR-960000730-B1 (KR)
Inventor: HEYES PETER JOHN
IPC: B65D1/12
Filed: 1988-10-12
Granted: 1996-01-12
Abstract: 내용 없음.
Patent KR-970007217-B1 (KR)
Inventor: THIEL RUDOLF
IPC: F16D65/02
Filed: 1989-05-05
Granted: 1997-05-07
Abstract: 내용없음.
Patent KR-920005993-B1 (KR)
Title: Process for making soybean curd containing fiber from soybean
Inventor: SO CHI-SU
IPC: A23L11/00
Filed: 1990-05-08
Granted: 1992-07-25
Abstract: A dietary fiber-contg. bean curd is  prepd.  by  (a)  soaking soybean or bean curd refuse in the water and pulverizing to obtain the slurry, (b) softening and sterilizing  the  slurry  at  80-121 deg.C for 30-60 min. and grinding, (c)  homogenizing  the  grinded slurry under 1500 Psi - 10000 Psi pressure,  and  (d)  coagulating the homogenized slurry and forming.
Patent KR-930006172-B1 (KR)
Title: Ignition controller for combustor
Inventor: ADACHI IKUROU
IPC: F23N5/20
Filed: 1990-05-14
Granted: 1993-07-08
Abstract: The controller automatically ignites the bombustion apparatus by opening  an  electronic  valve  included  in  a  fuel   supply passageway  according  to  a  combustion  start  command   signal. Specially it operates a safe and rapid ignition  corresponding  to various  kinds  of  fuel.  The  ignition  controller  comprises  a temperature control means (32) determining a necessary  combustion calory; a timer (31a), included in a sequence control means  (31), indicating a period after closing the electronic valve (21,22);  a gas fuel kind setting  section  (34)  for  setting  the  operation period of the timer (31a) corresponding to the gas kind.
Patent KR-920010109-B1 (KR)
Title: Trunk injector
Inventor: SON UI-SONG
IPC: A01G7/06
Filed: 1990-05-14
Granted: 1992-11-16
Abstract: The method employs a lengthy cone shaped vessel to be  filled with the liquid chemical and capped with  a  cap  for  the  filled vessel to be inserted in a hole bored in a target tree. The tip of the vessel is cut before insertion in the hole to allow the liquid discharge from the vessel into the tree. The cap has  a  flat  top for easy hammering for insertion.  The  chemical  is  injected  to prevent flower or seed  fluffs  from  flying  which  cause  health hazards.
Patent KR-920002146-B1 (KR)
Title: Process for the synthesis of tigogenin beta-cellobioside and intermediates for use therein
Inventor: URBAN FRANK J
IPC: C07J71/00
Filed: 1990-06-12
Granted: 1992-03-12
Abstract: Improved processes for the synthesis of tigogenin beta-cellobioside, a known hypocholesterolemic agent, using cellobiose heptaacetate and tigogenin as starting materials, and novel intermediates useful in this process.
Patent KR-0170630-B1 (KR)
Inventor: JUNG TAE-YUN
IPC: H04N9/64
Filed: 1990-06-20
Granted: 1999-03-20
Abstract: 내용없음.
Patent KR-0160972-B1 (KR)
Title: 13-alkyl-23-imino and13-halo-23-imino derivatives of ll-f28249 compounds and their use as endo-and ectoparasiticidal, insecticidal, acaricidal and nematode
Inventor: BUCKWALTER BRIAN L
IPC: A01N43/90
Filed: 1990-09-10
Granted: 1998-12-01
Abstract: There are provided certain 13-alkyl-23-imino and 13-halo-23-imino-LL-F28249 compounds which are useful for controlling endo- and ectoparasites, insects, acarids and nematodes.
Patent KR-0167772-B1 (KR)
Inventor: ICHIGAYA HIROSHI
IPC: H04N17/04
Filed: 1990-10-05
Granted: 1999-03-20
Abstract: 본원 발명은 텔레비젼 수상기의 컬러CRT의 콘버전스 상태를 측정하는 콘버전스(Convergence)측정장치에 관한 것으로서, 본원 발명콘버전스측정장치는 컬러CRT의 관면의 대향위치에 배치하고, 단봉(單峰)특성의 지향감도특성을 가지는 광센서화, 이 광센서의 검출출력으로 각 원색마다 광강도데이터를 비교연산해서 미스콘버전스량을 산출하는 미스콘버전스량산출 수단과, 상기 관면을 측정영역과 비측정영역으로 구분하고, 측정영역에는 각 원색의 휘선을 일정간격마다 배치하고, 또한 그 수직방향으로 이동시키는 패턴을 영사하고, 비측정영역에는 측정하지않은 다른 2색을 영사함과 동시에, 측정영역에 영사하는 휘선의 합계면적과 비측정영역에 영사하는 각 색의 화상면적의 각각을 대략 동일하게 설정하는 영상신호를 상기 컬러CRT에 출력하는 패턴제네레이터를 구비한 것이다.
Patent KR-930011736-B1 (KR)
Title: Pitch control method of voice signal
Inventor: BAE MYONG-JIN
Filed: 1990-11-21
Granted: 1993-12-18
Abstract: The method adjusts  pitch  of  voice  in  time  domain  using corelation of time-frequency domain so as to remove  voice  source division process. The method comprises the steps of: (a)  deciding modulation ratio of original voice signal (P); (b)  receiving  one frame voice signal S(n) and detecting pitch of voice signal  using conventional method; (c) deciding the number of zero's (L)  to  be inserted; (d) initializing half pitch value and compressing  pitch using the conventional pitch dividing method when  the  number  of zero's is a certain value; (e) comparing compressed  pitch  region with half pitch value; (f)  sending  voice  signal  (S'(n))  whose pitch is adjusted  to  a  speaker  when  compressed  pitch  region exceeds half pitch value.
Patent KR-930001115-B1 (KR)
Title: Process for preparing cephalosporin derivatives
Inventor: KIM YONG-JU
IPC: C07D501/36
Filed: 1990-12-28
Granted: 1993-02-18
Abstract: Amethod for preparing cephalosporin derivs.  of  formula  (I) comprises reacting a cpd. of formula (II) with a cpd.  of  formula (III) in an organic solvent in the  presence  of  borontrifluoride solvate at -20-50 deg.C. In  the  formulas,  R1=C1-4  alkyl,  C3-4 alkenyl or alkynyl or -C(Ra)(Rb)COOH; R2=C1-4 alkyl, C3-4 alkenyl, C3-7 cycloalkyl or opt. substd. phenyl; R3=H or C1-4  alkyl;  R4=H or amino protective gp.; R5=alkyl,  C3-4  alkenyl  or  alkynyl  or - C(Ra)(Rb) -COOH(Rc); L= leaving gp.; Q=C or N; n = 0 or 1.
Patent KR-970008932-B1 (KR)
Title: Alarm circuit of small switching system
Inventor: KIL TAE-KYU
IPC: H04Q1/30
Filed: 1991-01-15
Granted: 1997-06-03
Abstract: Alarm circuit for postal switching device, consists of a bridge diode that full-wave rectifies the power through the general telephone line and connects the general telephone line with the alarm circuit in parallel, a voltage input means that applies the voltage of proper level from the bridge diode, a alarm signal generating means that output the alarm signal when alarm switch is pressed according to providing the operation voltage from the voltage input means, and a line alarm control means.
Patent KR-0176253-B1 (KR)
Inventor: LEFEVRE DIDIER
IPC: G01N33/49
Filed: 1991-01-24
Granted: 1999-05-15
Abstract: 본 발명은 혈액의 호염기성 백혈구집단을 자동적으로 정성하는데 사용되는 시약제와 그 이용법에 관계한다. 
     본 발명은 특히 호염기성 혈구를 제외한 모든 혈액세포를 용해시키는 분별 차등 시약제의 새로운 조성물에 관계되고 특히 고유저항 변화의 측정을 기본으로 하고 다시 말하면 조성물의 농도와 용액의 pH가 일정한 전기 전도매체에 적합하도록 하는데 관련된다. 
     본 발명은 시약제는 저항변수를 측정함으로써 자동적으로 혈액 조성을 정성하는 장치에 이용될 수 있다.
Patent KR-970004995-B1 (KR)
Inventor: KANEKO KIMIHIKO
IPC: G01L3/22
Filed: 1991-02-05
Granted: 1997-04-10
Abstract: 내용 없음.
Patent KR-960013962-B1 (KR)
Title: System for reducing the effects of signal fading on received signals
Inventor: BAECKSTROEM THOMAS OLOF
IPC: H01Q21/29
Filed: 1991-02-05
Granted: 1996-10-10
Abstract: Signals in synchronizing sequences and data sequences are transmitted over a fading channel to a Viterbi-receiver (11, 12). The signals are received by antennas and sampled to received antenna signals (sin,r(k)). Part channel estimates (hest,r) for the individual antennas are formed. For Viterbi-analysis, assumed input signals (sa,r( DELTA Tij,k)) for the data sequence are produced with the aid of the part channel estimates (hest,r). Part metric values (mr( DELTA Tij,k)) are formed as a difference between the received antenna signal (s,in,r(k)) and corresponding assumed input signals (sa,r( DELTA  Tij,k)) for Viterbi state transitions ( DELTA Tij). For one state transition there is formed a metric value such as the sum of a metric value ((M(Tj,k-1)) for an old state (Tj) at a preceding sampling time point (k-1) increased with a weighted (Kr) sum of the part metric values (mr( DELTA Tij,k)) belonging to individual part channel estimates (hest,r). Corresponding metric values are formed for all state transitions to the new state (Ti) and the smallest of these metric values is chosen in accordance with the Viterbi-algorithm.
Patent KR-940000440-B1 (KR)
Title: Scroll type compressor
Inventor: LEE BYONG-CHOL
IPC: F04C27/00
Filed: 1991-07-05
Granted: 1994-01-21
Abstract: The sealing apparatus of a scroll compressor includes a contact member in contact with respective lap edges of an orbiting scroll and a fixed scroll and the bottom surface of flat plate of a relative scroll by inserting an elastic member contacting the bottom surface of a groove, for improving compression performance with a simple shape and structure, being capable of manufacturing by a press process to solve processing problems caused by employing a tip sealing, and decreasing abrasion on the lap edges of the orbiting and fixed scrolls, thereby manifesting excellent gas leakage prevention.
Patent KR-940008028-B1 (KR)
Title: Control panel for electric distribution
Inventor: JO KI-YON
IPC: H02B1/00
Filed: 1991-08-16
Granted: 1994-08-31
Abstract: The multi-functional electronic controller is disclosed in which a 16-bit microprocessor obtains the real component and imaginary component of an input signal basic wave component for a short operation time with a digital filter, and a program routine for calculating the magnitude of the base wave is incorporated therein to thereby reduce errors due to harmonic wave and DC component of a signal.
Patent KR-0136852-B1 (KR)
Inventor: MISONO MASAYOSHI
IPC: H01J29/50
Filed: 1991-09-17
Granted: 1998-04-24
Abstract: 주렌즈를 구성하는 전극쌍의 축방향 대향부사이에 형성되는 전계가 회전비대칭분포를 가지는 전자총에 있어서, 각 전극(5),(6)의 내부에 전자비임에 대한 렌즈작용이 대략 회전대칭으로 되는 전계보정판(제 1 도(B)의 (54),(65))을 구비하여, 음극선관의 형광면상에서의 전자비임스폿의 형상을 보다 작게 형성하는 것을 특징으로 한다.
Patent KR-960001178-B1 (KR)
Inventor: KURODA DADAHIRO
IPC: H01L27/118
Filed: 1991-09-27
Granted: 1996-01-19
Abstract: 내용 없음.
Patent KR-100199120-B1 (KR)
Inventor: IHRMAN KRYN GEORGE
IPC: B01J31/14
Filed: 1991-10-23
Granted: 1999-06-15
Abstract: 본 발명은 올레핀 존재하에 트리에틸알루미늄을 방향족 디아민 및 클로라이드 이온원과 반응시켜 알킬 치환 방향족 디아민을 제조하는 방법에 관한 것이다. 알킬 치환 방향족 디아민은 폴리우레탄 처리 공정에서 사슬 중량제로 유용하다.
Patent KR-940002228-B1 (KR)
Title: Defrosting control system in refrigerator
Inventor: JONG YUN-KAP
IPC: F25D21/06
Filed: 1991-10-31
Granted: 1994-03-19
Abstract: The circuit comprises the following steps of; door-open detection for checking the door state; controlling the output of the defrost signal at the commanded time; external temperature sensing for controlling the accumulated door open time.
Patent KR-940011728-B1 (KR)
Title: Semiconductor device for securing transistor characteristics
Inventor: LEE CHON-HYONG
IPC: H01L21/28
Filed: 1991-11-06
Granted: 1994-12-23
Abstract: The semiconductor device using double metal, includes a first metallic layer (2) connected to the floating gate (1), a junction diode (9) connected with the first metallic layer (2) node, a via contact (5) formed by the RF etchback process, and a second metallic layer (3) formed on the layer (2) through the via contact (5). The electric charge generated in RF etchingback process secures the transistor characteristics.
Patent KR-0166973-B1 (KR)
Title: Apparatus and method for treating flat substrates under reduced pressure
Inventor: VISSER JAN
IPC: C30B25/14
Filed: 1990-05-07
Granted: 1999-01-15
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-940002792-B1 (KR)
Title: Robot cleaner
Inventor: KIM TAE-SHIK
IPC: A47L9/28
Filed: 1992-01-07
Granted: 1994-04-02
Abstract: The cleaner comprises a control, a memory for storing cleaning travel tracks corresponding to the room floor to clean, a measuring instrument for finding obstacles, distances and angles to travel, a drive for moving the cleaner under the control following the information found by the instrument, a floor state detector for finding the surface state of the floor to travel, a battery for drive power, a vacuum generating motor for suction of foreign matters, a bellows tube for suction of foreign matters, and a suction pipe for leading sucked matters to a collection container. The drive mechanism with the battery mounted within self-propels the cleaner under the control functioning with the data from the memory and detectors to execute the cleaning operation, to an effect of unmanned operation.
Patent KR-0135875-B1 (KR)
Inventor: MIN KYUNG-SEO
IPC: G11B7/00
Filed: 1992-02-13
Granted: 1998-05-15
Abstract: 본 발명은 광학장치의 픽업수단에 관한 것으로 광학기록장치에 있어서, 복수개의 광픽업수단과 상기 복수개의 광픽업수단에 의하여 입력되는 신호를 처리하는 신호처리부와 상기 신호처리부의 신호에 의하여 제어되고 상기 복수개의 광픽업수단을 각각 구동하는 복수개의 픽업서보수단을 구비하는 것을 특징으로 하며 복수개의 픽업수단을 구비하여 액세스 시간을 줄이거나 데이타를 다중으로 읽게 함으로써 고속 액세스가 필요한 광학 장치에 응용할 수 있는 점이 있다.