baber/WOPTO huggingface dataset:
Patent KR-850000141-B1 (KR)
Title: Brazing soldering method for patch board
Inventor: NAKANISHI SEIKI
IPC: H05K3/34
Filed: 1981-05-04
Granted: 1985-02-27
Abstract: This invention relates to a brazing soldering method for an electric parts patch board that contains lead lines. Wiring methods for electronic parts adhere the parts to many lead lines in order to form an electric circuit and use suitable base plates, i.e. a print plate as an electric maintenance supporting body. The objective of this invention is to offer an improved method for an automatic soldering process.
Patent KR-880001837-B1 (KR)
Title: Induction motor
Inventor: KOBARI KATSUO
IPC: H02P21/04
Filed: 1981-12-29
Granted: 1988-09-20
Abstract: A vector control method is used to maintain the drive speed w.r.t. a reference speed.  When the speed of the motor exceeds the reference speed, an exciting current amplitudes control circuit increases the exciting current command value in response to the speed of rotation. A supply voltage output circuit detects the level of the drive supply voltage and controls the exiting current amplitude control circuit in order to increase the reference speed.  The latter is used as the threshold for changing the exciting current command value in response to the detected level.
Patent KR-850000522-B1 (KR)
Title: Drill grinder
Inventor: NOMURA YOSHIO
IPC: B24B3/24
Filed: 1982-02-04
Granted: 1985-04-17
Abstract: A drill grinding machine is operated by sliding a slide base on the inclined state of constant angle for a electrical rotaryaxis, having the frame with a perpendicular pair of up-holding plates to slide base, moving the frame perpendicular to slide base, supporting to rotate both ends of a pair of holders gripping a drill and forming the stopper of a pair of holders at the position of 180≰rotation. The stopper of the grinder was formed by stopping a pair of holders on the inclined state of constant horizontal angle.
Patent KR-850001782-B1 (KR)
Title: Producing method of carbon black
Inventor: WILLIAMS FRANK R
IPC: C09C1/50
Filed: 1982-05-14
Granted: 1985-12-18
Abstract: In a modular process for producing furnace C blacks, a fuel and anoxidant are reacted in a first zone to provide a stream of hot prime combustion gases possessing sufficient energy to convert a liquid hydrocarbon feedstock to C black. In a second zone, the feedstock is injected in the form of coherent jets into the combustion gases. In a third zone, the feedstock is decomposed and converted into C black prior to termination of the C-forming reaction by quenching. The resulting C balck is then cooled, separated and recovered. The improvement comprises introducing the prime combustion gases, at a point no further downstream then where the feedstock is injected, to increase the surface area of the blacks.
Patent KR-850001368-B1 (KR)
Title: Drive device in ac elevator
Inventor: YOKODA SADORU
IPC: B66B1/30
Filed: 1982-12-02
Granted: 1985-09-24
Abstract: A driving rope(3), which hangs and supports an elevator(2), is installed at the driving wheel(8). The wheel is operated by an electronic motor through the reducing apparatus. A multiplereducing apparatus is linked to the driving wheel and is connected with the reducing device. An electronic motor has a control device(17,27) that drives the mechanisms side-by-side for a total or part of the period between starting and stopping of the elevator(2).
Patent KR-900008247-B1 (KR)
Title: Process for preparing new physiologically active substance arphamenine
Inventor: UMEJAYA HAMAO
IPC: C12N1/20
Filed: 1983-06-02
Granted: 1990-11-06
Abstract: Arphamenine A and B, having anti-aminopeptidase B activity of formula (I) and their salts are prepd. In (I), R is H in the case of Arphamenine A and R is OH in the case of Arphamenine B. (I) is produced by culturing Arphamenine-producing bacteria of chromabacterium genus to yield and accumulate Arphamenine A and/or B. Arphamenine A or B has enzyme-inhibiting activity to aminopeptidase B. Arphamenine has potentiating action to cellulous immunity and carcinostatic action.
Patent KR-860000600-B1 (KR)
Title: Heat sensitive recording unit
Inventor: ASANO MAKOTO
IPC: B41M5/333
Filed: 1983-08-06
Granted: 1986-05-22
Abstract: Thermal recording paper is described providing very stable color images which do not undergo easy discoloration or fading when exposed to light and do not readily disappear when brought into contact with an oil. The material contains a methine type chromogenic reactant and a quinone oxidizing compd. Thus, a thermal recording paper compn. contained [2,5-di(p-methylbenzoyl)-1,4benzoquinone  5, [3,3'- dimethyl-4,4'-bis(methylamino)-4''-dimethyl aminotriphenylmethane  3, calcined kaolin 30, pptd. CaCO3 22, Zn stearate 5, resorcinol benzoate 10, hydroxyethylcellulose 25 wt. parts. The material provided deep bluish purple prints.
Patent KR-860000709-B1 (KR)
Title: Brake apparatus of vtr reel table
Inventor: YU NAK-JUN
IPC: G11B15/30
Filed: 1983-12-31
Granted: 1986-06-07
Abstract: On the upper side of a moving iron core(4), which is inserted in the upper portion of the main reel table shaft(3), a brake disk(5) is installed to brake the reel table(1). On the lower portion of the main shaft, an iron core(7) and a small solenoid coil(8) are installed. a coil spring(9) is estableshed between the solenoid coil(8) and the brake disk. a contacting piece(10), which is extruded in the middle portion of the reel table, contacts with the moving piece of brake disk. The magnetic force of the solenoid coil be generated by the stop sign of a switch which descends on the brake disk and the moving iron core. This moves the contacting piece and it controls the rotation of reel table.
Patent KR-930004937-B1 (KR)
Inventor: WITTBER FRITZ
IPC: C08L7/00
Filed: 1984-02-18
Granted: 1993-06-10
Abstract: 내용 없음.
Patent KR-890001893-B1 (KR)
Title: Microelectronic devices manufacturing method
Inventor: SKIYAMA GASHIRO
IPC: G06F15/02
Filed: 1984-04-23
Granted: 1989-05-30
Abstract: A base film is intermittently advanced to a predetermined length at each step, a film-like electronic part is arranged on the base film one on each predetermined length, and at least the edge portions of a panel sheet are secured to the base sheet so as to seal each electronic part between the base film and the panel sheet.  The base film is then cut to separate the predetermined length of the base film of a predetermined shape with the panel sheet and electronic part.  Pref. base film may be the front face of the device and electronic parts can be a printed circuit board, a film-like liq. crystal cell and a film-like solar cell.
Patent KR-890003131-B1 (KR)
Title: Tintable vessel
Inventor: LANGLITZ KARLHEINZ
IPC: C21C5/46
Filed: 1984-11-12
Granted: 1989-08-23
Abstract: Vessel (1), particularly a tiltable converter, whose weight is carried on stationary mountings with prestressed tension elements running parallel and perpendicular to the central axis (12), allowing thermal movements, has transverse fixing elements in pairs, with their ends each on the vessel mounting near the vessel.  Their other ends are fixed on a displaceable hollow bearing, each transmitting tension forces.  A short supporting journal in the hollow bearing is connected at least directly with the vessel wall (2).
Patent KR-850001759-B1 (KR)
Title: Process of producing sulfamoyl-substituted phenethylamide derivatives
Inventor: KATSUO IMAI
IPC: C07C315/04
Filed: 1985-01-05
Granted: 1985-12-09
Abstract: Title derivs. 3,4-(SO2R1)R2C6H3CHR1CR4R5NHCR7R8CHR9YC6H3R10 (I) (R1=amino or mono-, di-alkylamino; R2=OH, alkyl or alkoxy; R1=Iodo, alkoxy or phenylthio; R4R5R7R8R9=H or alkyl; R10=H, alkyl or alkoxy; y=O or methylene, only 0 if R2=OH) were prepd. by HI, alcohol or thiophenol treatments of 3,4-(SO2R1)R2C6H3CHC(R4(R5)NC R7R8CHR9YC6H3R10 (II) produced by alkali treatment of 3,4-(SO2R1) R2C6H3CRXCHR4R5NR6CR7CHR9YC6H3R10 (III) (R=H or alkyl; X=Cl or Br). Compds. (I) had  -,  -blocking activity of adrenaline and are useful as hypotensives and treatment of congestive cardic insufficiency.
Patent KR-930005573-B1 (KR)
Inventor: FERRARI HARRY M
IPC: G21C3/20
Filed: 1985-05-06
Granted: 1993-06-23
Abstract: 내용 없음.
Patent KR-870000936-B1 (KR)
Inventor: LEE YU-KON
IPC: D02J1/22
Filed: 1985-07-03
Granted: 1987-05-11
Abstract: 내용 없음.
Patent KR-930010897-B1 (KR)
Inventor: ROBERTS RICHARD W
IPC: F16H37/02
Filed: 1985-08-22
Granted: 1993-11-17
Abstract: 내용 없음.
Patent KR-890005339-B1 (KR)
Inventor: HALL DAVID B
IPC: G02F1/01
Filed: 1985-10-30
Granted: 1989-12-22
Abstract: 내용 없음.
Patent KR-890001876-B1 (KR)
Title: Composition of dental adhesive
Inventor: OOTSKA MASHASKE
IPC: A61K6/884
Filed: 1985-11-23
Granted: 1989-05-29
Abstract: The composition of dental adhesive comprises (A) the cpd. of formula (I); (B) the vinyl cpd., the silane coupling agent or their mixt. to be selected from methylmethacrylate, polyethylene glycolmethacrylate, 2-hydroxyethylmethacrylate, tetrahydrofurylmethacrylate, 2,2-bis[4- (2-methacrylethoxy)phenyl propane, acrylonitril, vinylacetate, 2- cyanoacrylic acid ester, styrene, divinylbenzene or their mix.; (C) redoxydation-polymn catalyst, photosensitizer or their mixt..  This dental adhesive compn. contains 0.1-2 wt.% (A), 85-99 wt.% (B) (silane coupling agent is 0.1-2 wt.%) and 0.1-5 wt.% (C).  In formula (I), R1 is H or methyl, R2 is H or lower alkyl.
Patent KR-940010029-B1 (KR)
Inventor: LIN YUNG-YI
IPC: F23C10/00
Filed: 1986-02-28
Granted: 1994-10-20
Abstract: 내용 없음.
Patent KR-910000676-B1 (KR)
Inventor: KOBAYASHI HIROSHI
IPC: B29C65/02
Filed: 1986-12-20
Granted: 1991-01-31
Abstract: 내용 없음.
Patent KR-900003252-B1 (KR)
Title: Wafer conveying and retaining jig made of silica glass
Inventor: INAKI KYOICHI
IPC: H01L21/673
Filed: 1987-02-26
Granted: 1990-05-12
Abstract: A wafer conveying and retaining jig made of silica glass comprises an end member of semi-transparent quartz glass including 15-100 micron air bubbles. The end member lowers the radiation heat loss from the end part.
Patent KR-900005703-B1 (KR)
Title: Processing method of imitation hair for wig
Inventor: KIM BOG-GI
IPC: A41G5/00
Filed: 1987-11-04
Granted: 1990-08-06
Abstract: A proces method of an imitation hair for a wig comprises (a) cutting the imitation hair of a synthetic fiber yarn or a natural hair in a fixed length, (b) hackling, wefting, dyeing and colouring the imitation hair, (c) curling the hair by winding the hair on the surface of the curling pin and (d) heating the hair by the hot air. The imitation hair for a wig gives a natural and affluent beauty appearance.
Patent KR-900002553-B1 (KR)
Title: Heating apparatus pf plate glass
Inventor: FUCHIGAMI YASUHIRO
IPC: C03B35/16
Filed: 1987-12-15
Granted: 1990-04-20
Abstract: Selected sections of glass panes travelling through a tunnel furnace are heated locally in addition to stationary heating means along the top and the bottom of the furnace.  Additional heating means are carried on two pairs of arms which enter the furnace from the sides and can be moved at right angles to the travel of the panes for the heating of local areas above the temperature of the rest.
Patent KR-940005939-B1 (KR)
Title: Display method of teletext data
Inventor: KIM KWANG-SU
IPC: H04N7/08
Filed: 1987-12-31
Granted: 1994-06-24
Abstract: The method continuosly drives a display device when a receiving state of teletext is abnormal, or a teletext receiver is in ready , and improves reliability of the device. The display includes a data slicer (1), a serial/parallel converter (2) which inputs a composite video signal, a match controller (3), and a FIFO unit (4), a teletext cpu (5) which inputs an output of FIFO unit (4), and a display device (6) which connects a serial output of teletext cpu (5). When a prefix match controller (3) receives a data, 3 byte data signals of P1, P2, P3 are inserted to FIFO (3), and a displaying device of light unit(6) is lighted.
Patent KR-900005833-B1 (KR)
Title: Rear view mirror
Inventor: KIM TAE-JUN
IPC: B60R1/06
Filed: 1987-12-31
Granted: 1990-08-13
Abstract: The device gives safety covering of rear view by preventing vibration of back mirror in travelling. The device composes of supporter (4) which forms truncated projection (5) at the center of rear side, inwardly arched projection members (6) at the outer edge of rear side, fixing holes (7) arranged round (5), fixing holes mutually connected with projecting hooks (3) formed at the back of mirror holder (2). Truncated projecting part (5) forms a hinge by connecting with opposite concave (8) of actuator (1) and outwardly arched supporting members (9) couple resiliently with projecting members (6) of (4) for antivibration.
Patent KR-900004800-B1 (KR)
Title: Antiglaucoma compositions
Inventor: WATKINS ROBER W
IPC: A61K9/06
Filed: 1986-07-02
Granted: 1990-07-06
Abstract: Ophthalmological pharmaceutical compositions comprising an angiotensin converting enzyme (ACE) inhibitor and a beta adrenergic blocker useful for combination therapy of glaucoma.
Patent KR-930012186-B1 (KR)
Title: Sheath core fiber and its method of manufacture
Inventor: COLLIER JOHN R
IPC: D06M101/16
Filed: 1986-07-08
Granted: 1993-12-24
Abstract: A sheath core fiber having an inner core (10) made from an oriented thermoplastic material, such as polyester, nylon, acrylic, and olefin, and a sheath (18) made of a nonthermoplastic material, such as regenerated cellulose and protein. The fiber maintains the crease and tear resistance of the core material, yet has the water sorptivity and dyeability of the sheath material. A method of manufacturing such a fiber is also disclosed.
Patent KR-910003221-B1 (KR)
Inventor: LIN YUNG-MAO
IPC: A43B13/38
Filed: 1988-01-09
Granted: 1991-05-24
Abstract: 내용 없음.
Patent KR-930001121-B1 (KR)
Inventor: ONAI KOZO
IPC: D03D15/02
Filed: 1988-01-29
Granted: 1993-02-18
Abstract: 내용 없음.
Patent KR-920004697-B1 (KR)
Inventor: KIMURA HUMIO
IPC: B67D7/44
Filed: 1988-02-06
Granted: 1992-06-13
Abstract: 내용 없음.
Patent KR-910003926-B1 (KR)
Inventor: SHAUWI KAZI M
IPC: G02B6/00
Filed: 1988-06-15
Granted: 1991-06-17
Abstract: 내용 없음.
Patent KR-970004458-B1 (KR)
Inventor: ZUDEBERU PIITAA JIEI
IPC: H01L29/732
Filed: 1988-06-28
Granted: 1997-03-27
Abstract: 내용없음.
Patent KR-920010488-B1 (KR)
Title: Fixed magnetic disk and the magnetic manufacturing method
Inventor: JO KUM-YON
IPC: G11B7/26
Filed: 1988-09-16
Granted: 1992-11-28
Abstract: A fixed magnetic disc, which is used as an  auxiliary  memory device for recording information, is manufactured by  (A)  washing the glass substrate, (B) depositing 100-500 angstrom  Ta2O5  layer on the glass substrate  using  RF-Magnetron  method,  (C)  forming conventional Cr layer, magnetic recording layer  of  Co-Cr-Ni  and protective layer thereon in order using DC-Magnetron  method,  and (D) forming lubricative layer thereon. Average  surface  roughness (Ra) and maximum surface roughness (Rmax) of the  glass  substrate are less than 0.025  m and less than 0.3  μm, respectively.
Patent KR-910004958-B1 (KR)
Title: Absorbing sheet for electromagnetic wave and making method
Inventor: PARK SUK-BOM
IPC: H05K9/00
Filed: 1988-10-18
Granted: 1991-07-18
Abstract: The sheet for electromagnetic wave shielding is  manufactured by bonding the thin metal film and the resin sheet calendering the mixed plastic resin powder with the additives. The  bonding  agent is made from the solution of thermal hardening resin  (VMCH).  The compound ratio of resin sheet is made of 100:2:2:2 (plastic resin: heat resistant stabilizer; active agent:  Sb2O3).  This  sheet  is useful for the video, audio, computer, condensor, PCB and  another electric components.
Patent KR-910005896-B1 (KR)
Inventor: MANYA ALBERTO
IPC: C07H15/234
Filed: 1988-12-07
Granted: 1991-08-06
Abstract: 내용 없음.
Patent KR-920002341-B1 (KR)
Title: Process for the preparation of polyester film
Inventor: AN TEA-WAN
IPC: C08G63/78
Filed: 1988-12-22
Granted: 1992-03-21
Abstract: The polymerising material for polyester  film  is  prepd.  by dispersing an inactive  inorganic  fine  particle,  and  2-hydroxy ethane sulfonic acid sodium salt of powder type  as  a  dispersing agent in glycol,  and  polymerising  with  diacid  component.  The dispersing agent is 0.05-2 wt.% w.r.t. glycol. Pref. the  inactive inorganic  fine  particle  is  selected  from  calcium  carbonate, kaoline  or  barium  sulfate.  In  this  process,  the  dispersing property is improved, and then fish-eye in the film is removed and the problem of drop-out is solved.
Patent KR-960005195-B1 (KR)
Title: Watching apparatus and method
Inventor: LIDBON STEN-AKE ALAUS
IPC: H03K5/19
Filed: 1987-07-06
Granted: 1996-04-22
Abstract: Method and apparatus for monitoring that a plurality of mutually subsequent signals are of substantially the same appearance and, thereby, are substantially alike, and for triggering an alarm and/or stop function in the event of signal loss and/or in the occurrence of one or more unknown and unacceptable deviations in the appearance of the monitored signal, and for preventing triggering of an alarm and/or stop function on the occurrence of one or more known and acceptable deviations in the appearance of the mutually subsequent signals, the monitored signal being digitalized and thereafter fed, on the one hand, to a blocking and comparator circuit for generation of a signal indicating unknown deviations, for triggering the alarm and/or stop function, and, on the other hand, to a registration circuit for registering the appearance of the signal and feeding of a signal to the blocking and comparator circuit of such type that known deviations in the digitalized signal are accepted so that the blocking and comparator circuit emits an output signal triggering an alarm and/or stop function only in response to unknown deviations in the monitored signal.
Patent KR-920010508-B1 (KR)
Inventor: LEWIS RICHARD C
IPC: H04N5/262
Filed: 1988-03-23
Granted: 1992-11-30
Abstract: 내용 없음.
Patent KR-920004340-B1 (KR)
Inventor: DAKIBA AKIRA
IPC: H03K17/693
Filed: 1989-06-16
Granted: 1992-06-01
Abstract: 내용 없음.
Patent KR-960003613-B1 (KR)
Title: Process for the preparation of tetrahydrofolates
Inventor: MULLER HANS RUDOLF
IPC: C07D475/04
Filed: 1989-06-23
Granted: 1996-03-20
Abstract: The invention relates to a new process for the preparation of 5,10-methenyl-(6R)-, 5-formyl-(6S)- and/or 5-methyl-(6S)- tetrahydrofolic acid and of their salts, characterised in that an acid addition salt or the internal salt of 5,10-methenyl-(6R,S)- tetrahydrofolic acid is subjected to separation of diastereomers by fractional crystallisation and, if desired, the 5,10-methenyl-(6R)- tetrahydrofolic acid obtained is converted into 5-formyl-(6S)- tetrahydrofolic acid by treating with a hydrolysing agent or into 5-methyl-(6S)-tetrahydrofolic acid by treating with a reducing agent and/or a free acid obtained is converted into one of its salts by treating with a base.
Patent KR-920006998-B1 (KR)
Inventor: EGENBERGER JOHN S
IPC: G11B20/18
Filed: 1989-09-08
Granted: 1992-08-24
Abstract: 내용 없음.
Patent KR-940005078-B1 (KR)
Title: Process for producing ceramic paper
Inventor: YON KYONG-UI
IPC: C04B35/00
Filed: 1989-09-30
Granted: 1994-06-10
Abstract: The ceramic paper having a good tensile strength is produced by (a) beating a bulky Al2O3/SiO2 ceramic fiber in a beater to be 2-10 mm fiber length, (b) maintaining a slurry concn. of the ceramic fiber to be 0.5-2 %, (c) mixing 5-20 wt.% alumina sol 10 % soln. as an inorganic binder, 5-40 wt.% acryl emulsion 45 % soln. as an organic binder and 2.5-10 wt.% polyacryl amide 15 % soln. as a strengthening agent with the ceramic fiber, (d) making a sheet by feeding the mixed slurry into the intake felt, and (e) drying it in a compression roller.
Patent KR-920006077-B1 (KR)
Title: Control method of resume function for p.c.
Inventor: JO HAN-JIN
IPC: G06F1/00
Filed: 1989-12-30
Granted: 1992-07-27
Abstract: Non-maskable interrupt signals are generated by checking  the power disconnection  state  through   a   PMSC   (20).   Then   a discrimination finds whether the system is under  a  resume  mode. Then the data of the input/output port register and the data of  a central processing unit (60) are transferred to the back-up memory region of a main memory (70). Then a  main  power  source  section (30) is turned off, and a back-up battery (40) is turned on.  When the normal power is supplied, the data of the  back-up  memory  is recovered. With the method, a sudden  power  failure  is  properly dealt with even in a portable computer as in the  normal  personal computer.
Patent KR-0131402-B1 (KR)
Inventor: LUDDEN MICHAEL JOSEPH
IPC: H01B3/28
Filed: 1988-07-08
Granted: 1998-04-24
Abstract: 요약없음
Patent KR-910008590-B1 (KR)
Inventor: ITOH HISAYUKI
IPC: B29C45/14
Filed: 1988-07-21
Granted: 1991-10-19
Abstract: 내용 없음.
Patent KR-930002021-B1 (KR)
Inventor: YOSHIDA KAZUSHI
IPC: G07D9/00
Filed: 1990-01-04
Granted: 1993-03-20
Abstract: 내용 없음.
Patent KR-0161861-B1 (KR)
Inventor: KIM HYUN-CHOL
IPC: G01B5/02
Filed: 1990-03-10
Granted: 1999-03-30
Abstract: 내용 없음.
Patent KR-950005682-B1 (KR)
Inventor: FUMIO MARUYAMA
IPC: C10G11/05
Filed: 1990-03-20
Granted: 1995-05-29
Abstract: 내용 없음.
Patent KR-930000604-B1 (KR)
Title: Thin film transistor and manufacturing method thereof
Inventor: CHOE KWANG-SU
IPC: H01L29/78
Filed: 1990-03-24
Granted: 1993-01-25
Abstract: The thin film transistor is mfd. by depositing  an  aluminium metal on the substrate by the sputtering method to  form  a  first metal film (2a), depositing a tantalum metal on the film  (2a)  to form a second metal film (2b) on it, oxidn.-treating the film (2b) to form a first insulating film (3a)  of  the  oxidized  tantalum, forming a second insulating film (3b) of a silicon nitride on  the film (3a), and forming an amorphous silicon layer (4),  an  N-type amorphous silicon layer (5),  drain electrode  (6)  and  a  source electrode (7)  in  order.  The  transistor  is  used  as  a  pixel switching device.
Patent KR-940008625-B1 (KR)
Title: Laundry measuring apparatus of washing machine
Inventor: MUN KYONG-HO
IPC: D06F33/02
Filed: 1990-04-30
Granted: 1994-09-24
Abstract: The laundry sensing apparatus of an automatic washing machine for sensing the laundry weight through a weight sensing apparatus connected to a pulsator is executes a precise operation with construction of a lower price. The apparatus includes a pulsator driving center part for changing a reactance of a sensor coil according to the laundry quantity, a colpitts oscillator constructed by the sensor coil, a resistence, a capacitor, etc. and for providing a changed oscillating frequency according to the reactance change, and a microcomputer for controlling a water level beginning and a course process according to the laundry quantity.
Patent KR-920006416-B1 (KR)
Inventor: SUGITANI YUJI
IPC: B23K9/028
Filed: 1990-05-23
Granted: 1992-08-06
Abstract: 내용 없음.
Patent KR-0148368-B1 (KR)
Title: Reflective polymeric body
Inventor: WHEATLEY JOHN A
IPC: B32B7/023
Filed: 1990-06-19
Granted: 1998-11-02
Abstract: A multilayered reflective body comprises alternating layers of at least first and second polymeric materials of which layers a substantial majority have an optical thickness of not more than 0.09 micrometers or not less than 0.45 micrometers, and adjacent layers of said first and second polymeric materials differ from each other in refractive index by at least 0.03. A sufficient number of layers are present that essentially no perceived iridescence is reflected and, usually, 30 percent of non-absorbed incident light is reflected. The reflective body may be fabricated into sheets, mirrors, noncorroding metallic appearing articles and parts, reflectors, and reflective lenses.
Patent KR-930011654-B1 (KR)
Inventor: ITOH RYUJO
IPC: B23B13/08
Filed: 1990-07-16
Granted: 1993-12-16
Abstract: 내용 없음.