baber/WOPTO huggingface dataset:
Patent KR-810000094-B1 (KR)
Title: New high melting n,n'-terephthaloyl bisphthalamide and its use as an ester interlinking agent for polyesters
Inventor: YUZI OKUZUMI
IPC: C07D209/48
Filed: 1975-04-28
Granted: 1981-02-14
Abstract: The imide(I) with a high m.p. was prepd. and used to increase the mol. wt. of polyesters such as poly(ethylene terephthalate).  Thus, K phthalimide in dioxane and Ph2O was treated slowly with dioxane contg. telephthaloyl chloride, refluxed at 70-170≰C, freed of dioxane by distn., refluxed 200-400≰C, filtered and cooled to >= 60≰C to give N,N'-terephthaloyl-bisphthalimide (b.p. >= 330≰C).
Patent KR-840000478-B1 (KR)
Title: Traction motor current control apparatus
Inventor: PRINES FRANK J
IPC: H02P5/00
Filed: 1978-06-01
Granted: 1984-04-09
Abstract: A chopper circuit using a thyristor (14) to feed a d.c. traction motor (12) from a d.c. voltage source (10) is operated in a controlled ON/OFF ratio to control the speed torque performance. The commutation circuit uses one thyristor (30), and the commutation voltage does not appear at the chopper output terminals (36, 38). A voltage control snubber circuit may be used advantageously across main thyristor (14) and commutation thyristor (30). but is not necessary across the wheeling diode (22).
Patent KR-790001656-B1 (KR)
Title: Method of preparing granular pesticides
Inventor: PARK HYEON SOO
Filed: 1979-01-16
Granted: 1979-12-01
Abstract: Granular pesticides which containing parathion mainly, useful as pesticide, herbicide, or soil pesticide, were prepd.  Thus, parathion or EPN was mixed with emulsifier, stabilizer, water-insoluble resin, and water-soluble resin and then heated at 30-80≰C to give melted mixture.  The mixture was sp- rayed on the dried 5-60 mesh sand and then recoated by mixing with prescribed pigment and bentonite or talc fine-power to give granular pesticides.
Patent KR-820001919-B1 (KR)
Title: Puffer type gas circuit breaker
Inventor: KISHI TSUNEO
IPC: H01H33/16
Filed: 1979-07-25
Granted: 1982-10-19
Abstract: In the circuit breaker ass'y, the insulating supporting cylinder(9) cooperatoes with a supporting conductor(11) to fixedly mount a supporting conductor(90).  A puffer cylinder(166) and a puffer piston(16a) form a compressor means for compressing SF6 gas in the metal tank(1) in accordance with the movement of the main movable contact(15) leaving the main fixed contact(12).  The compressed gas is introduced to an opening (93) provided in the puffer cylinder and applied through an insulating nozzle(17) to arc between the main contacts.  The main movable contact, the puffer cylinder and the insulating nozzle form a movable portion of the interrupting unit which is electrically connected in parallel with a preinsertion resistor contact unit(18).
Patent KR-850000775-B1 (KR)
Title: Brazing method
Inventor: MANSEY RICHARD CHARLES
IPC: B23K1/19
Filed: 1979-08-23
Granted: 1985-05-31
Abstract: In the brazing method for a nuclear fuel assembly using Zr and Zr- alloy elements within the brazing composition, Zr alloy and Be alloy is extracted from the nuclear fuel assembly, and the elements are maintained at 950≰C, which is lower than transformation temp. (975≰C) . This is followed by rapid heating up to 1050≰C, the eutectic formation temp., and the elements are cooled below the eutectic formation temp. At the moment of eutectic formation, the transfer of the brazing composition is finished.
Patent KR-830002290-B1 (KR)
Title: 회전자의 변형을 감지 및 제어하기 위한 장치
IPC: F02C7/105
Filed: 1979-12-26
Granted: 1983-10-21
Abstract: 내용 없음.
Patent KR-810001693-B1 (KR)
Title: Process for the preparation of dibromo substituted propionamides antidote for thiocarbamate herbicidal antidote
Inventor: TEACH EUGENE G
Filed: 1980-04-10
Granted: 1981-10-27
Abstract: The 2,3-dibromopropionamides(I; R1 = H, alkyl or alkenyl; R2 = alkyl, alkenyl, alkynyl, etc.) ! decrease the toxicity of thiocarbamate herbicides.  I as prepd.  by reacting 2,3-dibromopropionyl chloride with amine(II) in solvent.  Thus, 3.0 g diallylamine was mixed with 3.5 g triethylene and 25ml methylene chloride and stirred with 7.5 g 2,3-dibromopropionyl chloride, washed with water, dried and isolated as crude oiltype material.  Vernam, applied in-furrow for the control of Echinochloa crus-galli and Setaria virida, was phytotoxic to barley(Hordeum vulgare).
Patent KR-850000240-B1 (KR)
Title: Process for the preparation of imidazo(1,2-a)pyridines
Inventor: BRISTOL JAMES A
IPC: C07D471/04
Filed: 1981-01-20
Granted: 1985-03-12
Abstract: The title compds. (I) [R = H, alkyl(C1-C4), trifluoromethyl, Ar, - CH2-halogen, -CH2-(SO)n-CH3(n=0,1,2), -CH2CN, -CH2-N(R1,R2) (R1,R2=H, methyl), -CH2-O-CO-R3(R3=alkyl (C1-C4), etc..; R'alkyl(C1-C4), BCN(B=linear or branched lower alkyl), B-O-CO-R, BOR, CH2N(R1,R2), etc..; X = H, methyl, Cl, Ar, phenyl etc.; T = linear or branched alkyl(C1-C3); Z = O, S, SO, SO2, NH or a single bond  were prepared by the reaction of compds. (II) and (III) [Z" = leaving group, in the case that R is not hydrogen, R'  is hydrogen . The compds. (I) effectively control stomach acid secretions and protect alls.
Patent KR-830002786-B1 (KR)
Inventor: IZUMIYA SYUNZO
Filed: 1981-02-16
Granted: 1983-12-16
Abstract: 내용 없음.
Patent KR-890004083-B1 (KR)
Title: Living polymers and process for their preparation
Inventor: WEBSTER OWEN W
IPC: C07C381/12
Filed: 1982-06-29
Granted: 1989-10-20
Abstract: A process of polymerizing the monomer selected from compd. (I)[X=-CN, -CH=CHC(O)X1, -C(O)X1; Y=-H, -CH3, -CN, -COOR; X1=-OSi(R1)3, -R, -OR, -NR1R2; R1=C1-10 aryl, alkaryl; R=C1-20 alkyl, alkenyl, alkadienyl; R1, R2=C1-4 alkyl , compd. (II) and mixts. thereof is contacted with a source of fluoride, cyanide or axide ions or with a cocatalyst which is a source of a Lewis Acid or difluoride ion under polymerizing conditions in the presence of (R1)3MZ catalyst (M=Si, Sn, Ge; Z=activating substituent such as -CN).
Patent KR-880000730-B1 (KR)
Title: Hot water boiler
Inventor: PYON SANG-BOK
IPC: F24H9/18
Filed: 1982-12-07
Granted: 1988-04-29
Abstract: The boiler uses common 9-holed briquets as fuel and has fireboxes (2) and (3) and an ash pan (4) installed in vertical alignment within the boiler case (1).  The box (2) is fixed to a swing door (5) while the box (3) in the middle is fixed to the front wall (7) of the case. The ash pan (4) is fixed to another swing door (8) with an air pipe. The swing opening of the side doors with the firebox and ash pan for feeding briquets and removing ashes protects the operator from facing the fume which is sucked out through a smoke pipe on the other side.
Patent KR-900000278-B1 (KR)
Title: Method and apparatus for the recovery of liquid aluminium by compression of hot dros
Inventor: GUILION JACQUES
IPC: B30B9/04
Filed: 1984-03-22
Granted: 1990-01-24
Abstract: Liquid Al is recovered from hot dross by compression in a die of circular section positioned between a ram and the press table of a unidirectional vertical press.  The ram is applied to the upper part of the dross and is lowered at a maximum speed until liq. starts to flow from the lower part of the die and then at a lower speed which varies directly with the concentration of liquid Al in the dross. Apparatus for carrying out the process is also claimed.  The process can be used in an industrial scale and extracts the major part of the Al droplets from the dross.
Patent KR-860000923-B1 (KR)
Title: Manufacturing process of plate heater
Inventor: CHO DAE-HYON
IPC: H05B3/20
Filed: 1984-06-13
Granted: 1986-07-18
Abstract: A heating sheet having a fine resistor wire within its synthetic resin layers is manufd. Two polyester sheets in a thickness of 0.25 - 0.5 mm (1) (2) are pressed and heated at 120≰C through rollers at a travelling speed of 120 mm/sec. Fine wire of below 0.1 mm is blown out through a nozzle with hot air of 250≰C. The surfaces of the polyester sheets are melted in a moment and the wire is embedded zigzag between the two PE sheets according to the swinging movement of the nozzle at a speed of 1200 mm/sec. Two sheets and embedded wire are pressed through pressing rollers(3) (3') to form a heating sheet(6). This sheet is used for heating the bed. The wire within it is not felt by a user due to its finess.
Patent KR-870000843-B1 (KR)
Title: Process for extracting pyridine soluble substance
Inventor: CANTRELL JOHN L
IPC: A61K35/74
Filed: 1984-09-22
Granted: 1987-04-25
Abstract: Pyridine soluble extract(PE) is prepd. from Proprionibacterium acnes type II.  Thus, P. acnes type II grown on the NIH thioglycolat broth at 37≰C for 48-72hr is harvested. The cell paste washed with distld. H2O 90g washed paste(wet wt.) is treated with pyridine at 4≰C for 1hr and centrifuged. The supernatant is evaporated at 50≰C, dialyzed against H2O, and lyophilized to give 8.1g PE. The PE contains 5 wt.% protein, 35 wt.% sucrose, and 55 wt.% fatty acid. The PE has anticancer activity.
Patent KR-890003199-B1 (KR)
Title: Rotary type head driving device
Inventor: INAZI TOSHIO
IPC: G11B5/588
Filed: 1984-11-15
Granted: 1989-08-26
Abstract: The rotary head deflection controller operates by regulation of the current flowing in two driving coils (8A,8B) mounted concentrically with the axis of rotation of the head (2,3) to generate an electromagnetic force which can be used to ensure reliable displacement of the head (2,3).  The e.m. force is generated between the two coils and permaent magnets (6A,6B) fixed to the rotation head.  The head is carried on two lead-springs (11,12), ensuring hear vetical deflection of the head relative to the surface of the magnetic tape, resulting in constant head pressure on the tape displacement of rotating heads in helical scan V.T.R.
Patent KR-890004563-B1 (KR)
Title: Nagatively charger for electrophotography
Inventor: FUJI MASANORI
IPC: G03G9/09
Filed: 1985-04-02
Granted: 1989-11-15
Abstract: The toner for electrophotography consists of (A) binding resin for fixing, (B) a coloring matter and (C) a charge controller of indanthrone-based dye.  The amount of (C) is 2-12 wt.% per 100 wt.% of (A).  (A) typically includes styrene, acryl or their copolymer. To improve the mold releasing property, silicone oil or various wax may be added.  When using indanthronebased dye as a blue coloring matter, the negative polarity of the toner is greatly improved and sharp blue hue is attained.
Patent KR-900001783-B1 (KR)
Title: Overcurrent protecting circuit
Inventor: SATO KAZHIRO
IPC: H02H9/02
Filed: 1985-07-05
Granted: 1990-03-24
Abstract: A transistor connecting a power source such as a battery to a load has its collector-emitter voltage monitored by a second transistor via a delay circuit such that the second transistor is turned on after a set delay following a change of the collectoremitter voltage.  The second transistor is connected to the first transistor so that when turned on, it bypasses the base current to the first transistor to turn it off.
Patent KR-920004054-B1 (KR)
Inventor: INOUE MISRU
IPC: E04H6/18
Filed: 1985-07-11
Granted: 1992-05-23
Abstract: 내용 없음.
Patent KR-890000430-B1 (KR)
Title: Rotary type fluid energy converter
Inventor: KITA YASUO
IPC: F04B1/24
Filed: 1985-11-05
Granted: 1989-03-17
Abstract: The torque ring (2) is rotatable with constant pressure bearing (3). The shape of the housing (1) is a cone, and the taper-face (4) is formed in the housing (1).  The first constantpressure bearings (3) are set in equal angle and space.  The centers (b,g) of the constant- pressure bearing (3) and piston (8), are displaced in shaft-direction (Y) with relative-rotation of the housing (1) and torque ring (2).
Patent KR-930005529-B1 (KR)
Inventor: KOPPELMAN EDWARD
IPC: G01N33/48
Filed: 1985-12-18
Granted: 1993-06-22
Abstract: 내용 없음.
Patent KR-920000227-B1 (KR)
Inventor: DAKAKI HIROSI
IPC: H01L23/525
Filed: 1986-02-04
Granted: 1992-01-10
Abstract: 내용 없음.
Patent KR-920003164-B1 (KR)
Title: Two-loop line deflection system
Inventor: WILLIS DONALD H
IPC: H04N5/12
Filed: 1986-04-01
Granted: 1992-04-20
Abstract: In a synchronized digital horizontal deflection system operating at 2xfH, a digital phase-lock-loop circuit generates first fH rate signal that is synchronized to the horizontal sync pulses, and a second fH rate second signal that is delayed from the first signal by one-half of the period H. A digital phase-control-loop circuit receives the first and second signals and generates a horizontal deflection control signal at 2xfH rate that controls the retrace interval timing in a deflection circuit output stage. The synchronization of every other retrace interval occur in accordance with information provided by the first signal.
Patent KR-930005865-B1 (KR)
Inventor: NARULA DIPAK
IPC: A61K8/00
Filed: 1986-04-02
Granted: 1993-06-25
Abstract: 내용 없음.
Patent KR-940001943-B1 (KR)
Inventor: CHUBINCHECK PETER W
IPC: F02M67/02
Filed: 1986-05-24
Granted: 1994-03-11
Abstract: 내용 없음.
Patent KR-900001987-B1 (KR)
Inventor: TSUJI KAZUTO
IPC: H01L23/48
Filed: 1986-08-01
Granted: 1990-03-30
Abstract: 내용 없음.
Patent KR-890003578-B1 (KR)
Title: Method for preparing film having little low polymer on its surface
Inventor: LEE YONG-JIN
IPC: C08J7/04
Filed: 1986-08-27
Granted: 1989-09-25
Abstract: Polyester film, which has below 20mg/m2 low molecular weight material contents on its surface, is prepared by the heattreatment of polyester film at 160-210≰C, for 0.5-5 seconds, placing the said film in a bath contg. the mixt. of methanol, chloroform and dioxan for above 3 seconds., and drying them.
Patent KR-900008573-B1 (KR)
Inventor: SICKLER ROBERT H
IPC: H01R33/09
Filed: 1986-10-20
Granted: 1990-11-26
Abstract: 내용 없음.
Patent KR-900005747-B1 (KR)
Title: Temperature controller in a pressure roller of a image - forming device
Inventor: TSUZIYA SIZEUO
IPC: G05D23/24
Filed: 1986-10-28
Granted: 1990-08-09
Abstract: The temperature control device uses a thermo-sensitive element to detect the temperature of an imaging system heated fixer device member. The potential generated by the thermo-sensitive element to the detected temperature is compared with a reference voltage to set the temp. of the heated member to a predetermined lever. A signal representing the comparison result is used for controlling the temperature of the heated member. Any abnormality of the heated member is detected on the basis of the output signal from an oscillator producing a signal which changes the reference potential at predetermined periods and from the comparator output signal.
Patent KR-960001760-B1 (KR)
Inventor: DIETZ WOLFGANG F W
IPC: H04N5/06
Filed: 1986-12-23
Granted: 1996-02-05
Abstract: 내용 없음.
Patent KR-900000236-B1 (KR)
Inventor: JACOB EINHORN
IPC: B32B37/00
Filed: 1985-06-03
Granted: 1990-01-24
Abstract: 내용 없음.
Patent KR-920005841-B1 (KR)
Title: Method for the feeding of a material web
Inventor: GIACOMELLI PETER
IPC: B65B41/18
Filed: 1987-01-28
Granted: 1992-07-23
Abstract: In the stepwise feeding of a packing material web for the application of cover strips over prepunched pouring openings, the pouring opening is sensed by means of a photocell which is located as long before the point of application as the distance between two pouring openings. Any errors in this distance will thus affect the accuracy of application. In order to avoid this it is proposed in accordance with the invention to sense the passage of the actual pouring opening and start a countdown sequence, at the end of which the web feed is interrupted with the pouring opening in correct position for the application of the cover strip. An arrangement for the realization of this, seen in the direction of feed of the material web (1),comprises a sensing device (4), a processing device (5) and a forward feeding device (9) which are connected to a control unit (13)
Patent KR-900008241-B1 (KR)
Title: Apparatus for humidifying of rice
Inventor: SATAKE DOSIHIKO
IPC: A23L7/10
Filed: 1987-03-04
Granted: 1990-11-06
Abstract: Rice grains are fed into a humidifying vessel through a supply port and removed through a discharge port while preventing gas escape from the vessel through either port. Gas is delivered to the vessel under pressure to pressurise the space and moisture is added to the rice grains within the vessel. The apparatus consists of control part (100) for operating moisture additional part (70) and applied pressure part (40), discharage part (20) and supply part (10).
Patent KR-950008218-B1 (KR)
Inventor: ACAMPORA ANTHONY
IPC: H04L12/56
Filed: 1987-04-09
Granted: 1995-07-26
Abstract: 내용 없음.
Patent KR-910001856-B1 (KR)
Title: Register
Inventor: WOO WON-HOI
IPC: G07G1/00
Filed: 1987-04-27
Granted: 1991-03-28
Abstract: The method sets the cashier mode with one selection  key  and displays  the  selected   cashier.   The   cashier   is   selected sequentially by pressing the selection key one by one so that  the cashiers can be selected by  only  one  selection  key.  When  the cashier is selected, then the transaction contents  are  processed and recorded on the part of a memory  which  is  assigned  to  the cashier so that the dealing amounts is printed  according  to  the cashier.
Patent KR-910000907-B1 (KR)
Title: Process and apparatus for the production of mosaic type articles
Inventor: PARK HO-JIN
IPC: E04F15/00
Filed: 1987-06-19
Granted: 1991-02-18
Abstract: The  apparatus  supplys,  through  sliding  tables  in   the multistage structure,  chips on the base coated with basesol.  The sliding tables uniformely arranged with chips  in  mosaic  pattern are  vibrated  by  a  mechanical  or  electrical  method  to  feed arranged chips  on  the  base.  The  apparatus  having  oven  (14) comprises a hopper (13) for chip (3), vibration slider plate (17), inclied plate (12) of sliding (11), a  vibrator  and  a  embossing roll (15).
Patent KR-960000798-B1 (KR)
Inventor: BOWMAN WAYNE C
IPC: H02M3/338
Filed: 1987-08-07
Granted: 1996-01-12
Abstract: 내용 없음.
Patent KR-900006592-B1 (KR)
Title: Interlaxle differential restriction device for vehicle four wheel drive system
Inventor: HIKETA MANABU
IPC: B60K17/35
Filed: 1987-09-02
Granted: 1990-09-13
Abstract: The engine (1), mounted at the front of the vehicle, has an output shaft (2) extending transversely to the vehicle body and connecting with an input shaft (4) of a transmission (8) through a power clutch (3). A front inter-wheel differential gear connects the front wheel axles (21,22). An inter-axle differential gear (9) is located next to the inter-wheel differential gear. A differential restrictor (50) is located on the side of a transfer gear, and compries a first clutch disc connected to the transfer gear, and a second clutch disc to the inter-axle gear. Alternatively a differential lock can be used, mounted in the same position, to lock the inter-axle differential gear mechanism.
Patent KR-970001385-B1 (KR)
Inventor: MARKWARDT TERRANCE L
IPC: H01R24/00
Filed: 1988-02-16
Granted: 1997-02-05
Abstract: 내용 없음.
Patent KR-920000672-B1 (KR)
Inventor: UEKI KOUICHI
IPC: G05D23/13
Filed: 1988-06-14
Granted: 1992-01-20
Abstract: 내용 없음.
Patent KR-910005615-B1 (KR)
Title: Programmable sequential code recognition circuit
Inventor: CHOI JUNG-DAL
IPC: G06F11/28
Filed: 1988-07-18
Granted: 1991-07-31
Abstract: The  programmable  sequential   code   recognition   circuit comprises an individual code recognition nuit (10)  for  receiving sequential input codes to provide an individual code according  to recognition of the input codes, a sequence  recogniton  unit  (20) for  outputting  a  signal  to  enable  or  disable  a  particular operating mode upon the semiconductor device in response to  logic combination of each individual code input.  A  desired  particular operating mode is selected by the combination  of  the  sequential input codes in semiconductor device.
Patent KR-910005375-B1 (KR)
Inventor: OJAKI HITETOSI
IPC: H04N5/213
Filed: 1988-08-26
Granted: 1991-07-29
Abstract: 내용 없음.
Patent KR-910009791-B1 (KR)
Inventor: KOSHIYUZI TAKASHI
IPC: H04N1/10
Filed: 1988-10-13
Granted: 1991-11-30
Abstract: 내용 없음.
Patent KR-920009713-B1 (KR)
Inventor: NAKATA TOSHIHIKO
IPC: G03F9/00
Filed: 1988-10-29
Granted: 1992-10-22
Abstract: 내용 없음.
Patent KR-920006696-B1 (KR)
Inventor: MASINI JEAN-JACQUES
IPC: F16L27/04
Filed: 1988-12-12
Granted: 1992-08-14
Abstract: 내용 없음.
Patent KR-920004876-B1 (KR)
Title: Two cycle engine and method of operation
Inventor: DESANOUD DALY P
IPC: F01L9/00
Filed: 1988-02-26
Granted: 1992-06-19
Abstract: A method and system, including a valve (32) for controlling the amount of fluid purged from a cylinder (12) of a two-cycle engine prior to the combustion of an air-fuel mixture within the cylinder especially during low demand periods of engine operation. The system including a throttle (26) disposed upstream of an inlet port (14) and controlled to be maintained in an open condition during such intervals. The valve (32), which is adapted to communicate with a scavenge port (30) includes a piston (80) that is movable relative to an aperature (76) in response to a pressure differential created in part by the operation of a cooperating electromagnetic valve (54), such that when the piston is moved to uncover the aperture a predeterminable amount of fluid within the cylinder can be purged therefrom as the cylinder piston is moved through its compression cycle.
Patent KR-920002602-B1 (KR)
Title: Thermal head array drive apparatus
Inventor: CHA DONG-IL
IPC: G06K15/00
Filed: 1989-04-04
Granted: 1992-03-30
Abstract: The apparatus includes a  shift  register/counter  (130)  for counting thermal data of respective  radiating  bodies  to  output radiation control signals to the respective  radiating  bodies.  A buffer (132) buffers the radiation control signals  of  the  shift register/counter (130), and a radiation body array (134)  includes a plurality of radiating  bodies.  A  transistor  array  (136)  is switched  by  base  signals,  and  forms  current  loops  for  the respective radiating bodies. A gate array  (138)  gates  radiation control signals of a latching circuit (132) to the  bases  of  the transistors of the transistor array (136). The invention  improves the picture quality and reduces instantaneous power.
Patent KR-910008434-B1 (KR)
Title: Card reader and its controlling method
Inventor: KIM SUNG-KOO
IPC: G06K19/12
Filed: 1989-06-03
Granted: 1991-10-15
Abstract: A card reader  and  its  controls  guarantees  accurate  data reading without any  relation  to  data  characteristics  of  card magnetic band, while the usual card reader can read only upper  or bottom band and the available number of bits to read is fixed. The card reader circuit is composed of μ-com (1)  controlling  overall operation, card-recorded  signal  detector  (2)  for  data  start signals (CLS1,CLS2), clock  signal  (CLK1,CLK2)  and  data  signal (DAT1,DAT2) and the first data detector (3) which  detects  5-bits data and inputs to  -com.  The  remainings  are  the  second  data detector (4) for data of arbitrary number of bit  and  buffer  (5) storing output signal from μ-com,  inifializing  (3)  &  (4)  and setting the number of bits to detects from (4).
Patent KR-920009983-B1 (KR)
Inventor: KAWASUMI KENICHI
IPC: H01L21/30
Filed: 1989-09-11
Granted: 1992-11-09
Abstract: 내용 없음.
Patent KR-910007500-B1 (KR)
Title: Method of measuring the distance between shadow mask and internal part of pannel
Inventor: KIM WON-HO
IPC: H01J9/42
Filed: 1989-11-27
Granted: 1991-09-26
Abstract: The method is for measuring the distance from the shadow mask to the inside of panel exactly to produce the high quality  colour CRT. The current is flowed to a shadow mask (S)  after  assembling it at a panel (P). A metal rod (2) connected to  a  current  meter (1) is passed through the hole of the shadow mask to  measure  the induction current. Then the distance is calculated by  multiplying the elapsed time of the current flow and the movement velocity  of the metal rod.
Patent KR-920009058-B1 (KR)
Inventor: MIYAMOTO JUNICHI
IPC: G11C16/06
Filed: 1990-01-13
Granted: 1992-10-13
Abstract: 내용 없음.
Patent KR-940004971-B1 (KR)
Inventor: HATANO TOSHIAKI
IPC: E05D5/14
Filed: 1990-02-07
Granted: 1994-06-09
Abstract: 내용 없음.
Patent KR-0142414-B1 (KR)
Inventor: MAEKAWA TOSHIKAZU
IPC: G09G3/36
Filed: 1990-02-09
Granted: 1998-07-15
Abstract: 내용없음
Patent KR-930003030-B1 (KR)
Inventor: TAHARA MASAAKI
IPC: C23C2/02
Filed: 1990-02-28
Granted: 1993-04-16
Abstract: 내용 없음.