baber/WOPTO huggingface dataset:
Patent KR-790001319-B1 (KR)
Title: Automation fodder supply apparatus for small animal
Inventor: HUZISIMA KANZI
Filed: 1974-01-04
Granted: 1979-09-26
Abstract: Automatic fodder supply apparatus for small animals, i.e. pets. laboratory animals etc., for supplying a predetermined quantity of fodder at regular intervals, was manufactured.  The brush attached to the outlet(4) of the hopper(2) was adjoined to the outside of a cylindrical bucket(7) having a hole(8) in the side wall, which was rotated by a time switch.  A movable plate(11) capable of changing the quantity of the fodder was assembled in the bucket(7).  The cut-off plate(14) was fixed to the movable plate(11) to close the hole(8).
Patent KR-800001015-B1 (KR)
Title: End support shoe for composite joist
Inventor: BUTTS E
IPC: E04C3/04
Filed: 1974-09-23
Granted: 1980-09-22
Abstract: The invention is concerned with the structure field of steel concrete and specially a floor structure field. A steel joint(1) for the use of composite steel and concrete floor structure which has a horizontal extending top chord and a bottom chord and vertically extending cross-section of a bottom chord and vertically spaced from the top chord, comprises an open-web forming a top chord(5) and bar(3) welded on an angle(7). A zigzag bar web is equipped with its apices welded to the top and bottom chords.
Patent KR-800000666-B1 (KR)
Title: Method of making a sand mould
Inventor: INOUE SHISUO
IPC: B22C9/02
Filed: 1976-01-23
Granted: 1980-07-14
Abstract: A method of making a sand mold having a part molding cavity and a core for casting an annular part between the portion defining the part molding cavity and the core, comprises placing a sufficient amt. of the mixt. in a mold jacket to fill the mold jacket, pressing and forming the mixt. in mold jacket into a block, bringing into contact with the portion of the surface the cutter to cut the block, applying a coating of a part agent to the exposed surface of the core molding cavity, removing the core member from the core making cavity and placing the core member in the part molking cavity as at least part of the core for the annular part prior to casting the annular part.
Patent KR-810001770-B1 (KR)
Title: Veneer lathe
Inventor: HASEKAWA K
IPC: B27L5/02
Filed: 1978-01-18
Granted: 1981-11-13
Abstract: This lathe is featured by arranging a rotating roller, a driving mechanism and a pressurizing member as a fixed bar or a roller bar.  The rotating roller is shaped with a driving number with a number of cutting edges on the perimeter and located in a place where a perimeter of a log near an edge of a cutting knife can be cut by the edge in operation.  The pressurizing member is located in plural spaces between driving members of the rotating roller.
Patent KR-790000403-B1 (KR)
Title: Apparatus of extruding plastic materials
Inventor: LARYL LESTER MYERS
Filed: 1978-02-11
Granted: 1979-05-11
Abstract: Extrusion app. in which filament core was uniformly coated with plastics was devised to divide a plastic flow into various small flows having regular intervals and to give a core of equal velocity and compression. The app. consists of an extrusion chamber in which the coated core passed dividing holes (I) operated as feeding lines and joining holes are mounted symmetrically to I.
Patent KR-810001869-B1 (KR)
Inventor: YUHAS G
Filed: 1978-05-22
Granted: 1981-11-19
Abstract: 내용 없음.
Patent KR-830000079-B1 (KR)
Title: 버클
IPC: A44B11/02
Filed: 1979-05-01
Granted: 1983-02-08
Abstract: 내용 없음.
Patent KR-790001895-B1 (KR)
Title: Process for the preparation of substituted phenylguanidines
Inventor: KOLLING H
Filed: 1979-08-28
Granted: 1979-12-27
Abstract: Title compds.  (I; R, R1 are different, -COR4-CR4 = H, or substituted alkyl, aryl, amino) and II(R5 = substituted alkyl, alkenyl or alkynyl, R6=H, or substituted alkyl, alkoxy, alkenyl, alkynyl, R2 and R3 are same or not H, substituted alkyl, alkoxy, amino, halogen, halogenoalkyl, nitrile, substituted alkylthi, acyl, carbalkoxy, X = sulfinyl or sulfonyl), which showed anthelmintic properties, were prepd. by reacting oxygenating agent with II (R,R1, R2, R3 are given).
Patent KR-830001376-B1 (KR)
Title: 엔진의 배런서 장치
IPC: F16F15/26
Filed: 1979-11-06
Granted: 1983-07-19
Abstract: 내용 없음.
Patent KR-840002301-B1 (KR)
Title: Process for preparing halophenyl-pyridyl-allylamine derivatives
Inventor: HOEGBERG THOMAS
IPC: C07D213/38
Filed: 1980-11-14
Granted: 1984-12-17
Abstract: Pyridylallylamines I (R = H, CH3; X = F, I, Cl, Br; n = 1, 2) were prepared. Thus, 3-(4-chlorobenzoyl)pyridine was treated with vinyl bromide (CH2:CHBr) and the resulting propenol was chlorinated and aminated to give 3-(2,4-dichlorophenyl)-N-methyl-3(3-pyridyl) altylamine oxalate, which had an ED50 for the inhibition of neuronal uptake of serotonin of 34μ mole/kg i.p. in mice.
Patent KR-840000725-B1 (KR)
Title: Novel polymers having acid functionality
Inventor: EZZELL BOBBY RAY
IPC: C08F246/00
Filed: 1981-06-10
Granted: 1984-05-24
Abstract: Polymers useful as ion exchange membranes are produced from free radical initiated copolymerization of at least 3 monomers.  They are respectively chosen from tetrafluoroethylene; trifluoromonochloroethylene; trifluoroethylene; vinyliden fluoride; 1,1-difluoro-2,2-dichloroethylene; 1,1-difluoro-2-chloroethylene; hexafluoropropylene; 1,1,1,3,3,-pentafluoropropylene; octafluoro-isobutylene ethylene; vinyl chloride; trifluoronitrosoethane; and alkyl vinyl ether;  They are also chosen from compds. of formula (IV) and compds. of formula(V).  Y is an acid gp.; X is C1 or Br; a, a', b, b', n, and n' are integers >=0; C, and c' are O or 1; a+b+c and a'+b'+c' are not zero.  Rf and Rf, are F, C1, perfluoroalkyl or fluorochloroalkyl.
Patent KR-830000020-B1 (KR)
Title: 세멘트 방수제의 제조방법
Filed: 1981-07-31
Granted: 1983-01-29
Abstract: 내용 없음.
Patent KR-900000276-B1 (KR)
Title: Process for preparing strips or sheets of high strength austenitic steel having improved fatique strength
Inventor: HOSINO KAZUO
IPC: C21D7/08
Filed: 1982-09-27
Granted: 1990-01-24
Abstract: Production of cold rolled metastable austenitic stainless steel of AISI301 or AISI201 type, sheet or strip, comprises casting, hot rolling into strip or sheet, annealing and pickling, cold rolling, annealing and optionally pickling and finally temper rolling.  The sheet or strip is mechanically polished after or before the temper rolling, and the polishing is carried out by belt polishing, and the strip is hard tempered.  The process produces stainless steel with good corrosion resistance, high strength and improved fatigue resistance and which is useful in manufacturing of railroad vehicles.
Patent KR-890000507-B1 (KR)
Title: Apparatus for removing an animal from a shell
Inventor: CARPENTER ARTHUR CHARLES
IPC: A22C29/00
Filed: 1982-10-28
Granted: 1989-03-20
Abstract: Appts. for removing an animal particle from a trocas shell for use as a source of Mother of pearl. comprises a tubular helical main part with inlet and outlet and an attachment for coupling to a high pressure fluid source.  The main part pref. has 2.5 turns decreasing progressively in diameter and has a cutting edge at one end.  The outlet is pref. provided by one or more openings and there is an extension trailing end between main part and attachment.  One end is pref. inserted into the shell and relatively rotated so that the output is located adjacent to the apex, then the fluid is injected at a pressure of 1000-5000 1b/in2 to eject the animal.
Patent KR-920004620-B1 (KR)
Inventor: MIZOBE TETZO
IPC: E01B7/24
Filed: 1982-11-08
Granted: 1992-06-12
Abstract: 내용 없음.
Patent KR-880001981-B1 (KR)
Title: Echo canceller
Inventor: FISHER DAVID ANTHONY
IPC: H04L5/14
Filed: 1983-01-19
Granted: 1988-10-08
Abstract: The transmission system maintains synchronisation between the ends of the system by sending a pilot tone with the data.  The pilot tone transmitted is in analog form and is small compared with the amplitude of the data signal.  Sampling of the data singal at the receiving end is under control of a local clock, adjustment of which is effected concurrently with that of the data signals in which to effect the adjustment the local clock is compared with the received and detected pilot tone, and the timing of the local clock is adjusted in accordance with the results of the comparison to maintain synchronisation.
Patent KR-910008162-B1 (KR)
Inventor: DESFORGES PATRICK J JR
IPC: B60R1/064
Filed: 1983-03-16
Granted: 1991-10-10
Abstract: 내용 없음.
Patent KR-900004925-B1 (KR)
Title: Process for the preparation of phenylactic acid derivatives
Inventor: GRELL WOLFGANG
IPC: A61K31/16
Filed: 1983-07-04
Granted: 1990-07-12
Abstract: Phenylaceticacid derivs. of formula (I) and their nontoxic salts are prepd. by reacting a amine cpd. of formula (II) with a cpd. of formula (III). In the formulas, R1 and R2 are each e.g. di(C1-3) alkyl amino, N-(C1-3)-cyclohexylamino, C4-5 alkyleneimino, piperidino, etc.; R3 is e.g. H, F, Cl, Br, I, Me, OH, methoxy, benzyloxy, acetoxy, NO2, NH2, etc.; A is e.g. a single bond, dimethyl-methylene, ethylene, etc.; W is e.g. carboxy, C2-5 alkoxycarbonyl gp., etc. (I) are useful as a hypoglycemic compsn. for lowering blood sugar level.
Patent KR-900008075-B1 (KR)
Title: Means for electrically heating gases
Inventor: SANTEN SVEN
IPC: H05B7/18
Filed: 1983-11-11
Granted: 1990-10-31
Abstract: The plasma generator for heating gases has cylindrical watercooled electrodes (2,3), one of which is closed at one end, the other remaining open at both ends. A current sourve provides an arc (20) between the 2 electrodes (2,3), which is rotated in response to an applied magnetic field. At least one water-cooled spacing sleeve (6,7) lies between the electrodes (2,3) with gas slits (8,9,10) between each electrode (2,3) and the spacing sleeve (6,7). An auxiliary gas slit (11) lies adjacent the closed end (4) of the first electrode (2), with the gas flow through this slit (11) and the gas slit (8) between the electrode (2) and the adjacent spacing sleeve (6) controlled to adjust the position of the forward base (23) of the arc (20).
Patent KR-860000167-B1 (KR)
Title: Automatic screw cutting device for general lathe
Inventor: HO SANG-KU
IPC: B23G3/02
Filed: 1984-02-16
Granted: 1986-02-28
Abstract: A fixed stock is attached on the tool post of the carriage in a general lathe. Two bevel gears are assembled on the edge of a rotating drum, which is driven by a lead screw. A longitudinal feed device(11) and a latitudinal feed device(12) move on the fixed stock vertically to each other. The first lever (19) of the first break shaft(18) reciprocates by the double nuts (17, 17') of a bracket(15) screw bar, which is fixed on (11). The second lever(21) of the second breake shaft(20) reciprocates by the double nut(24, 24') of a bracket(22) screw bar, which is fixed on a holding stock(13). Bites can be established on the latitudinal feed device(12).
Patent KR-860000806-B1 (KR)
Title: Process for producing water-soluble ternary cellulose ethers
Inventor: WARNER PATRICIA ANNE B
IPC: C08B11/193
Filed: 1984-03-24
Granted: 1986-06-28
Abstract: A ternary hydroxyethyl hydroxypropyl methylcellulose ether(I) was prepd. by reacting an alkali cellulose with chloromethane, ethylene oxide, and propylene oxide. (I) has a methoxy degree of substitution (MDS) of 0.9 - 2.1(pref. 1.25 - 2), a hydroxyethyl molar substitution(HEMS) of 0.2 - 0.5, and a hydroxypropyl molar substitution(KPMS) of 0.08 - 0.4(pref. 0.1 - 0.3). Pref. (I) has a cloud pt. of 70≰C or less and a return cloud pt. of no more than 10(pref. 5≰C lower). The viscosity of a 2 wt.% aq. soln. of (I) at 20≰C is 10 - 100,000 cps. (I) is used as a protective colloid in suspension polymerization processes, esp. of vinyl chloride.
Patent KR-860000946-B1 (KR)
Title: Method for making decorative panel
Inventor: LEE WANG
IPC: B44C1/00
Filed: 1984-07-20
Granted: 1986-07-23
Abstract: Concavo-convex patterns are formed on the surface of solid material, e.g., wood, steel, non-ferrous metal, glass, or PVC plate, by the pseudo-corrosion method. The method comprises selective screen- printing on the surface with acryl, epoxy, or polyurethane resin. Fine particles of thermoplastic resin are then adhered by spraying. It is next heated to 80 - 180 ≰C to melt the adhered fine particles, printed with multiple colour inks, coated with UV-permeable ink, and irradiated by UV rays to give patterns on the surface.
Patent KR-930000422-B1 (KR)
Inventor: HOGARI SADAO
IPC: B66B5/00
Filed: 1984-12-29
Granted: 1993-01-21
Abstract: 내용 없음.
Patent KR-930000054-B1 (KR)
Inventor: TRIPIER DOMINIQUE
IPC: C07C/
Filed: 1985-04-17
Granted: 1993-01-06
Abstract: 내용 없음.
Patent KR-870001644-B1 (KR)
Title: Process for preparing of fire-paints
Inventor: KIM SONG-GUN
IPC: C09D5/18
Filed: 1985-06-18
Granted: 1987-09-18
Abstract: This invention relates to a heat-resisting paint whose heatresisting property is improved.  Xylene, cellosolvoacetate, butylacrylate, stylenemonomer, methylmetacrylate, acrylate and 2- hydroxyethlmetacrylate are mixed and this mixt. is reacted at 120-130≰C to give resin soln..  The produced resin soln. is reacted with silicon resin and the silicon resin mixt. is mixed with polypropylenesulfide resin, aluminum oxide, pigments and organic solvent to give the heat-resisting paint.
Patent KR-890000951-B1 (KR)
Title: A/d modulating circuit for a monitor in tv
Inventor: CHUNG SANG-HON
IPC: H04N11/04
Filed: 1985-09-25
Granted: 1989-04-14
Abstract: The A/D converter for displaying a monitor scene simultaneously in a main screen of a television comprises a multiplexer (1) for multiplexing analog Y, R-Y, or B-Y signal according to the input of selectors (S0, S1), an buffer (2) for amplifying the output of (1), an A/D converter (3) for converting analog input (Ia) to the n bit digital value, a counter (5) for generating binary pulse, a timing control cct. (6) for generating clock (CKS, CK1-3), and D flip-flops (4a-4c) for generating digital Y, R-Y, and B-Y signals (Y*, R-Y*, B- Y*).
Patent KR-910006828-B1 (KR)
Inventor: OKAMOTO ISAO
IPC: B61F5/22
Filed: 1986-05-24
Granted: 1991-09-06
Abstract: 내용 없음.
Patent KR-950003633-B1 (KR)
Inventor: NAKANO GNEJI
IPC: G11B15/087
Filed: 1986-07-19
Granted: 1995-04-17
Abstract: 내용 없음.
Patent KR-950002385-B1 (KR)
Inventor: HAFFNER WILLIAM B
IPC: B29C48/05
Filed: 1986-07-29
Granted: 1995-03-17
Abstract: 내용 없음.
Patent KR-940011453-B1 (KR)
Title: Liquid crystalline ferroelectric derivatives of branched acyclic alpha-chloro carboxylic acid
Inventor: DEMUS DIETRICH
IPC: C07C69/92
Filed: 1986-08-30
Granted: 1994-12-15
Abstract: α-Chlorocarboxylic acid or α-chlorocarboxylic acid chloride or bromide was reacted with hydroxy compd. (I; n=0,1; m=0,1; o=0,1; p=0,1; X=-COO-, -OOC-, or -CH2CH2; Y=X, -OH-, -N=N- or -N=N(O)-; R2=ClH2l+1, -O-Cl-H2l+1, -S-ClH2l+1, -CO-ClH2l+1, -OOC-ClH2l+1, -COOClH2l+1 or -NH-ClH2l+1) in the presence of a strong dehydrating reagent to give I (R1= (CH3)2CH2, (CH3)2CHCH2 or C2H5-CH(CH3). I has a good thermal stability and a lower melting point, and shows high dipole moment.
Patent KR-950000697-B1 (KR)
Inventor: MATSUKI TAKAKI
IPC: A61K6/06
Filed: 1986-09-05
Granted: 1995-01-27
Abstract: 내용 없음.
Patent KR-940009584-B1 (KR)
Inventor: HSU SHENG-TENG
IPC: H01L21/285
Filed: 1986-09-25
Granted: 1994-10-15
Abstract: 내용 없음.
Patent KR-910000367-B1 (KR)
Inventor: OOKAWA KATSUHIRO
IPC: H04N5/937
Filed: 1986-10-31
Granted: 1991-01-24
Abstract: 내용 없음.
Patent KR-900005950-B1 (KR)
Title: Vertical printing method
Inventor: SUNG DONG-RYUL
IPC: B41J5/30
Filed: 1986-10-31
Granted: 1990-08-18
Abstract: The method for typing the English or Hangul lengthwise with the daisy wheel divides the Hangul by 3 groups. The Hangul without horizontal vowl is included in the first group, with medium size horizontal vowl in the second group, and with large or small horizontal vowl in the third group. When the input character is the English, the printer types it at the center line and drives the platen motor as much as line pitch. But if the input one is the Hangul, the printer types it at the left, center, or right line according to the character group so that the typed character position is aligned lengthwisely.
Patent KR-900006793-B1 (KR)
Inventor: MCMILLEN ROBERT J
IPC: G06F15/173
Filed: 1984-10-18
Granted: 1990-09-21
Abstract: 내용 없음.
Patent KR-900002722-B1 (KR)
Title: Picture data memory control circuit of picture telephone
Inventor: KIM TUK-SU
IPC: H04N7/14
Filed: 1987-03-04
Granted: 1990-04-23
Abstract: The circuit for controlling  A/D converter and memory in a video telephone comprises a camera (10) generating video signal, a synchronous dividing circuit (20) dividing the complex video signal from the camera into vertical synchronous signal, horizontal synchronous signal and field synchronous signal, an amplifier (30) amplifying the complex video signal, an A/D converter (40) converting amplified analog video signal to digital signal, and a memory (50) storing digital video signal.  The circuit has a clock control method for controlling the timing of the A/D converter and an address control method for controlling the address of the memory.
Patent KR-960002311-B1 (KR)
Inventor: SO VINCENT C
IPC: G01N21/84
Filed: 1987-04-22
Granted: 1996-02-16
Abstract: 내용 없음.
Patent KR-900004313-B1 (KR)
Title: Complex immunogen containings synthetic peptides
Inventor: NEURATH ALEXANDER R
IPC: A61K39/29
Filed: 1987-04-28
Granted: 1990-06-22
Abstract: A complex immunogen comprises a core structure and multiple copies of one or more synthetic distinct peptides covalently linked to the core structure, the core structure comprising a saponin deriv. and a C12-24 organic cpd. or a hydrophobic polypeptide having an active moiety selected from the gp. consisting of -COOH, -CHO, -NH2 and -SH. The complex immunogen is used in vaccines.
Patent KR-900008253-B1 (KR)
Title: Process for phosphatizimg treated metal surface
Inventor: CHUNG CHUK-HUI
IPC: C23G1/02
Filed: 1987-05-14
Granted: 1990-11-06
Abstract: A metal surface treating agent is produced by adding 15-50 wt.% HOCH2CH2OC4H9, 2-10 wt.% K2Cr2O7 0.1-0.3 wt.% surfactant and 10-100 wt.% N-butyl alcohol to 20-100 wt.% phosphoric acid solution, and mixing the mixture with 0.07-3 wt.% at least one of benzene, HNO3, H2SO4, thiourea HCl, zinc oxide, bromine, carbonic acid or CCl4. The agent has a good anticorrosion effect.
Patent KR-890005161-B1 (KR)
Inventor: CHONG TAE-SONG
IPC: G11C17/00
Filed: 1987-05-16
Granted: 1989-12-14
Abstract: 내용 없음.
Patent KR-890003741-B1 (KR)
Title: Process for making snack using chicken
Inventor: YANG GYONG-SOK
IPC: A23L13/50
Filed: 1987-05-19
Granted: 1989-10-04
Abstract: In the process, 10 kg chicken chest meat was cooked at 120≰C and 15 psi for 15 min, cut into 3mm (width) x 30mm (length) size, and dried to give a start material (water content=43%), which was mixed with 2.5kg wheat flour, 1.0 kg corn starch, and 0.7 kg sorbitol to reduce the water content to 30%.  The resulting material was seasoned and pressed at 140≰C and 3000 psi to give 8.2 kg of final product of expansion.  The protein content of the final product was 3-5 times higher than those of common snacks.
Patent KR-910000632-B1 (KR)
Title: Flyback transformer
Inventor: CHUNG YUN-HO
IPC: H01F38/42
Filed: 1987-07-31
Granted: 1991-01-28
Abstract: A horizontal deflection circuit for a flyback transformer  to provide  a  cathode  ray  tube  with  the  high  voltage  and  the deflection current comprises a primary coil (L1), a secondary coil (L2), a horizontal coil (Ldy) and  a  horizontal  deflection  coil (La).  The  horizontal  deflection  coil  to  provide   with   the horizontal current is separated  from  the  primary  coil  and  is formed multi- stage taps(1,2,3). The horizontal deflection coil  is connected to the horizontal coil through taps.
Patent KR-930006607-B1 (KR)
Title: Sheet number displaying method
Inventor: KANG CHANG-SU
IPC: G03G15/00
Filed: 1987-11-30
Granted: 1993-07-21
Abstract: This invention is about the paper counting indication method in laser print or electrical copywriter. A central processing unit (1) operates main routine and then if input terminal (PB1) receive low-level voltage, the input terminal (AN) which has analog signal receives voltage proportional to paper number (4). By the signal input routine counting paper number and the counted paper number (4) routine using input signal, the central processing unit outputs data to signal output terminal(DA0-DA6) and for a constant tine, displays counted number at segment, through output teminals (OT1)(OT2).
Patent KR-900005896-B1 (KR)
Title: An electrical casing and shielding case manufacturing method
Inventor: ITO KATSUO
IPC: H05K5/02
Filed: 1987-12-24
Granted: 1990-08-13
Abstract: The electrical shielding case, for shielding a number of circuits from each other, includes a number of plate portions formed by dividing a metallic flat plate. Remaining parts of the plate portions are left for connection when outer peripheries of the plate portions are cut off, with each of the plate portions being folded at the remaining portions as fulcrums to form the electrical shielding case. Bendable cut and raised portions are formed at parts of other confronting plate portions interfering with end faces of the plate portions upon folding.
Patent KR-910009557-B1 (KR)
Inventor: HYAKUTAKE JUNICHI
IPC: H03K5/156
Filed: 1988-03-07
Granted: 1991-11-21
Abstract: 내용 없음.
Patent KR-960012089-B1 (KR)
Title: Digitized stored voice paging receiver
Inventor: BENNETT PAUL T
IPC: H04W84/02
Filed: 1988-06-30
Granted: 1996-09-12
Abstract: A paging receiver device (10) and method are disclosed in which analog information transmitted from an external source such as a paging transmitter are received and decoded. The analog information includes at least one voice message. The voice message is recovered, digitized, and stored in one of a plurality of message slots in a memory (50) of the paging receiver (10). In response to a paging user's request, the digitized stored message is recalled from memory (50), reconverted from digital information to analog information, and used to produce audible voice information being a replica of the original analog voice message.
Patent KR-960002942-B1 (KR)
Inventor: HAMASAKI MASAHUMI
IPC: B65D81/34
Filed: 1988-08-10
Granted: 1996-03-02
Abstract: 내용 없음.
Patent KR-920006729-B1 (KR)
Title: Ceramic material
Inventor: SHIN MUN-CHOL
IPC: H01G4/12
Filed: 1988-08-31
Granted: 1992-08-17
Abstract: The ceramic composition having high  dielectric  constant  is obtained by (A) blending lead monoxide (PbO),  zinc  oxide  (ZnO), niobium pentaoxide (Nb2O5),  barium  carbonate  (BaCO3),  titanium dioxide (TiO2) and  tungsten  trioxide  (WO3)  into  a  quaternary composition of 0.5-0.6 mol% Pb  (Zn1/3 Nb2/3)O3  -  0.25-0.35  mol% BaTiO3 - 0.07-0.17 mol% PbTiO3 - 0.03-0.15 Pb  (Zn1/2 W1/2)O3,  and (B) adding 0-0.5 wt.% manganese dioxide (MnO2) to  the  quaternary composition.  Produced  ceramic  composition  has   a   dielectric constant higher than 3000 and can be sintered at  the  temperature of 1120 deg.C or less.
Patent KR-960012765-B1 (KR)
Inventor: HUSIBI WILIUM R
IPC: B65H31/00
Filed: 1988-10-21
Granted: 1996-09-24
Abstract: 요약 없음
Patent KR-940007127-B1 (KR)
Title: Food packaging bag having excellent aroma retention
Inventor: NEZU SHIGERU
IPC: B29L7/00
Filed: 1988-12-24
Granted: 1994-08-06
Abstract: A food packaging bag having excellent aroma retention is prepared by heat selaing of a polybutylene terephthalate resin film.