baber/WOPTO huggingface dataset:
Patent KR-880000949-B1 (KR)
Title: Arc welder for short circuiting
Inventor: TABADA YOICHIRO
IPC: B23K9/073
Filed: 1982-03-30
Granted: 1988-06-04
Abstract: A short-circuit transfer arc welder has a voltage detector between the wire electrode and the metal to be welded.  This is connected to a pair of comparators.  The first determines when the detected voltage corresponds to a short circuit, the second to an arc discharge.  Their signals are fed to a switching control, which closes the main supply switch in response to the first and opens it in response to the second after a predetermined delay. This delay is regulated by a rhythm control, according to the speed of the wire feed and the average value of the detected voltage.  The welding arc is maintained by a continous low voltage auxiliary supply.
Patent KR-830001470-B1 (KR)
Title: 열가소성 합성수지 조성물의 제조방법
IPC: C08K7/00
Filed: 1982-03-31
Granted: 1983-07-30
Abstract: 내용 없음.
Patent KR-830002594-B1 (KR)
Title: 휘도 조절 전광판의 영상 입력 장치
IPC: G09G1/00
Filed: 1982-05-21
Granted: 1983-11-16
Abstract: 내용 없음.
Patent KR-880000432-B1 (KR)
Title: Process for beta-lactam
Inventor: HUBSHIBEREN CHRISTIAN LICOLAS
IPC: C07D493/14
Filed: 1982-08-27
Granted: 1988-03-24
Abstract: Optically uniform β-lactams (I) [R1=amino; R1=H, protective gp.; R3, R4=(un)substd. hydrocarbon  were prepd.  Thus, isopropylidene-D- glyceraldehyde was treated with 2,4-(MeO)2 C6H3CH2NH2 and the resulting imine was treated with phthaloylglycyl chloride to give (I) [R2=2,4-(MeO)2C6H3CH2; R1=phthalimido; R2R3=CMe2OCH2  which was reduced to the amine with MeNHNH2, N-benzyloxycarbonylated, deblocked, and oxidized with NaIO4 to give (I) [R2=2,4(MeO)2C6H3CH2; R1=NHCO2CH2Ph; R2R3=bond .  The new compds. are intermediates for antimicrobials, e.g. isocephalo-sporins.
Patent KR-860000726-B1 (KR)
Title: Fertilizer composition and process of making them
Inventor: ALLANE G GRAHAM
IPC: B01J2/28
Filed: 1982-09-24
Granted: 1986-06-14
Abstract: Fertiliser compns. with mechanical strength, size and wt. suitable for mechanical distribution and application to the soil were prepd. in granular form. The fertiliser comprises (a) a particulate N source (I) which is sparingly soluble in water at pH7 and 20≰C and is selected from melamine, ammeline, ammelide, cyanuric acid and their salts and mixts., and (b) a binder capable of binding the particles of (I) into granules. (I) is pref. urea, NH4  or K sulphate, nitrate or chloride, NH4 phosphate, KH2PO4, a lignosulphonate, a urea- or melamine- formal dehyde resin, starch or latex. Thus, a homogeneous mixt. of melamine and urea powders was sprayed with an aq. soln. of satd. urea, granulated and dried 20 min. at 94≰C and then 3 min. at 149≰C. The fertilisers are corn, potatoes, rice and wheat.
Patent KR-840002134-B1 (KR)
Title: Telephonic communication systems
Inventor: CHANG BYONG-JUN
IPC: H04M13/00
Filed: 1982-10-23
Granted: 1984-11-19
Abstract: An expandsion system for a telephone can connect five telephones to one main telephone line and allows one of them to be used as a doorphone as well. The five telephones can also be used as interphones respectively following the operation and transfer of the main call to one of the extension numbers by dialing the counterpart number.
Patent KR-920005631-B1 (KR)
Inventor: CHEN CHENG-HSUAN
IPC: G03F7/20
Filed: 1983-04-08
Granted: 1992-07-10
Abstract: 내용 없음.
Patent KR-860001606-B1 (KR)
Title: Profiling air/steam system for paper-making
Inventor: CHANCE TAMES LARRY
IPC: D21F7/00
Filed: 1983-09-30
Granted: 1986-10-13
Abstract: A moving paper web being dewatered is supported by a permeable member, pref. an endless felt, and has its transverse moisture prodile controlled by a transversely compartmented compressed steam- air box having its front face open to the endless felt. Each compartment of the steam-air box can be supplied with steam or air via a control valve controlled by moisture sensors, computer, and solenoid. The compressed air supplied to selected compartments of the box prevents steam migration into them from adjacent compartments.
Patent KR-890004602-B1 (KR)
Title: Method of object consolidation employing graphite particulate
Inventor: RICHITY WAIN P
IPC: C04B35/645
Filed: 1984-09-26
Granted: 1989-11-20
Abstract: A method of consolidating a metallic, metallic and ceramic, or ceramic body in any of initially powdered, fibrous, sponge or other forms capable of compaction, characterized by the steps of; (a) providing a bed of flowable particles within a contained zone, said particles primarily consisting of flowable and resiliently compressible carbonaceous beads having outwardly projecting modules thereon, and surface fissures, (b) positioning said body in said bed to be surrounded by said beads, (c) and effecting pressuristation of said bed to cause pressure transmission via said particles to said body, thereby to compact the body into desired shape, increasing its density.
Patent KR-860000744-B1 (KR)
Title: Method of forming element free spaces in continuous slide fastener chain with fly strips
Inventor: GOZIMA SHINICHI
IPC: A44B19/58
Filed: 1984-12-08
Granted: 1986-06-18
Abstract: A method of gapping a continuous slide fastener chain which carries successive sewn fly strips comprises intermittently feeding the chain through a gap-forming station with the fly strips folded up. In advance of the station the space is temporarily enlarged between fly strip ends. Sensors detect whether or not the space is larger than a reference amt. Also while sensing departure of the trailing end of one strip, it initiates a dwell period before sensing arrival of the leading end(12a) of the next strip. The sensors are spaced apart by the reference amt. and function in sequence if spaces are correct, but jointly if a space is excessive.
Patent KR-900004183-B1 (KR)
Title: Guiding and registaring multiple sizes of diskette in a fdd
Inventor: SEDELWECK MICHAEL L
IPC: G11B17/043
Filed: 1984-12-19
Granted: 1990-06-18
Abstract: The mechanism loads and centralises any one of several disc cartridges having various thicknesses so that the disc within the cartridge is registered in a predetermined plane of rotation. A pair of guide rails, upper and lower, is mounted at each side of the insertion path for the cartridge. The upper and lower rails are movable relative to each other and relative to the frame of the disc drive. This allows the rails to separate to receive individual diskette cartridges having different thicknesses. After a cartridge is inserted, the loading mechanism will move the cartridge to a reference position where the disc within the cartridge is in the plane of rotation.
Patent KR-900008966-B1 (KR)
Inventor: KASAYA MASASHI
IPC: F01L9/20
Filed: 1985-02-27
Granted: 1990-12-15
Abstract: 내용 없음.
Patent KR-890004968-B1 (KR)
Inventor: NAKAHATA ATSUSHI
IPC: H01H51/22
Filed: 1985-07-18
Granted: 1989-12-02
Abstract: 내용 없음.
Patent KR-870001338-B1 (KR)
Title: Hygroscopic synthetic fiber's making method
Inventor: U JONG-YOL
IPC: D01D5/34
Filed: 1985-11-12
Granted: 1987-07-18
Abstract: Hygroscopic synthetic fiber is produced.  Thus, a compd. contg. polyethylene(MIF=16) and polystyrene (MIF=21) at the 9:1 ratio is spun at 283 C and at the rate of 1300 m/min.  This resulting material is extended to get multifilamentous thread (75 denier, 24 filament), inflamed at 2750 tpm and heat-treated at 150≰C to give a synthetic fiber.
Patent KR-890000711-B1 (KR)
Title: Shuttle's making method
Inventor: TO HAN-KI
IPC: D03J5/00
Filed: 1986-02-17
Granted: 1989-03-27
Abstract: A method for making shuttles comprises (i) forming a shuttle block [that consists of (a) outer wall materials of impregnated sp. phenol resin soln. 70-80 wt.% into pulp sheets (ca 1-2mm thickness), (b) inner wall materials of impregnated 45-55 wt.% of the same and (c) fillers of impregnation of the above resin 35-45 wt.% into wastepaper plate , (ii) planting bolts in advance (for bolt holes, joined with nuts) under the block, (iii) pressforming between upper and lower metal forms at 140-170 deg.C and (iv) screwing off the bolts and replacing them with adhesivecoated tip-bolts.
Patent KR-910000773-B1 (KR)
Title: Process for the preparation of 2,2,2,-trifluoro ethanol
Inventor: CHEMINAL BERNARD
IPC: C07C31/40
Filed: 1986-04-22
Granted: 1991-02-06
Abstract: The process for synthesizing 2,2,2-trifluoroethanol by liquid phase catalytic hydrogenation of a compound of formula:    <IMAGE>  (I)  in which R is a hydrogen atom or a linear or branched alkyl radical containing from 1 to 8 carbon atoms and optionally partially fluorinated, comprising carrying out the hydrogenation in the presence of a nickel catalyst and in the presence of an aliphatic tertiary amine as a cocatalyst.
Patent KR-950001006-B1 (KR)
Title: Dust-free alginate impression materials
Inventor: SCHUBABE PETER
IPC: A61K6/90
Filed: 1986-09-30
Granted: 1995-02-07
Abstract: In the making of an impression wherein an impression material comprising an alginate, a pulverulent material and a dust-reducing coating is mixed with water to form a paste, the paste is positioned about a mold member, and permitted to harden, the improvement wherein such coating comprises an iso-paraffin. There is reduced dusting.
Patent KR-920003421-B1 (KR)
Inventor: HICHIKATA KENZI
IPC: C08K3/04
Filed: 1986-12-02
Granted: 1992-04-30
Abstract: 내용 없음.
Patent KR-910000586-B1 (KR)
Inventor: SHIERADSZKI CHRISTOPHER
IPC: G01B21/00
Filed: 1987-01-12
Granted: 1991-01-26
Abstract: 내용 없음.
Patent KR-930006298-B1 (KR)
Title: Continuous cast steel
Inventor: RANG CETSTRIM
IPC: C22C38/14
Filed: 1987-02-13
Granted: 1993-07-12
Abstract: A continuously cast steel consisting of 0.32 to 1.0% carbon 0.20 to 3.0% manganese, up to 2.0% silicon, max. 0.05% phosphorus, max. 0.05% sulphur, 0.002 to 0.008% nitrogen, 0.015 to 0.08% zirconium, 0.010 to 0.10% aluminium, up to 3.5% chromium, up to 3.5% nickel and up to 0.5% molybdenum rest iron and unavoidable impurities, wherein the zirconium: nitrogen ratio being 7:1 to 10:1 and the austenite grain size being ASTM 6 or a smaller grain size number.
Patent KR-900003609-B1 (KR)
Title: Cement soliding method of uranium waste resin
Inventor: YUN MYUNG-HWAN
IPC: G21F9/28
Filed: 1987-07-16
Granted: 1990-05-26
Abstract: A method for cement-solidifying radioactive waste ion exchange resin comprises (a) introducing the waste resin into a storage tank, (b) removing supernatant, and pouring into a mixer (i.e. paddle of mortar mixer), (c) slowly adding dried cement contg. sodium sulfate 0.5-10 wt.% by a screw feeder with stirring at 100-800 rpm for 5-20 min, (d) adding additive by 2 times for 5-20 min each, (e) stirring for 1-5 min at lower rpm, and (f) hardening at ambient temp. or heat polymg. and radio active polymg..
Patent KR-940006806-B1 (KR)
Inventor: KATSYRA KOYO
IPC: G06F3/14
Filed: 1987-10-06
Granted: 1994-07-27
Abstract: 내용 없음.
Patent KR-900006877-B1 (KR)
Title: Ignition timing control device for internal combustion engine
Inventor: KOMURASAKI SATOSHI
IPC: F02P5/152
Filed: 1987-12-21
Granted: 1990-09-24
Abstract: The ignition timing control apparatus includes a knocking sensor which senses knocking information of the internal-combustion engine and a knocking discriminator which discriminates the knocking phenomenon in each cylinder of the engine sensed by the knocking sensor. A processing device performs specific processing in accordance with the knocking phenomenon thus discriminated and a phase shifter performs the phase shift control of an ignition signal by the output of this processing device. A switching circuit turns on and off the ignition coil by the output of this phase shifter. The processing device includes an integrator which calculates the integral voltage by the discriminator output and resets this integral voltage correspondingly to ignition operation.
Patent KR-900002925-B1 (KR)
Title: A process for the preparation of creanlike detergent for removing oil
Inventor: LEE SANG-YOUNG
IPC: C11D1/68
Filed: 1987-12-29
Granted: 1990-05-03
Abstract: A process for prepg. creamlike detergent for removing oil comprises (a) mixing coconut oil of 10-20 wt.% added with ethyleneoxide of 5-20 moles, oxidized ethyleneoxide aq. soln. of 0-5 wt.%, paraffin oil of 20-30 wt.% and fatic org. solvent of 30-40 wt.%, ripening for 3hr at 40-90 deg.C, and keeping at 40 deg.C; (b) dissolving additive (skin protector, stabilizer, perfume) of 0.2 wt.% in/water of 15-30 wt.% and keeping at 40 deg.C; and (c) mixing above two solns. at 40 deg.C, stirring for 60 min at 50 rpm, and rapid cooling to room temp.
Patent KR-910009605-B1 (KR)
Title: Method for transmitting a signal
Inventor: SCHOLTZ WERNER
IPC: G11B27/30
Filed: 1988-01-08
Granted: 1991-11-23
Abstract: Whenever a low-frequency pilot signal is transmitted in alternation with the useful signal, difficulties arise in erasure. These difficulties are avoided by the pilot signal in each case being repeatedly switched over briefly during a half-wave to another amplitude value (chopped). Particularly suitable for recording a pilot signal for automatic track following (ATF) in digital sound recording (R-DAT).
Patent KR-900009224-B1 (KR)
Inventor: SAKURAI KAZUO
IPC: F04C29/02
Filed: 1988-01-18
Granted: 1990-12-24
Abstract: 내용 없음.
Patent KR-930003418-B1 (KR)
Title: Print and display control method for memory file name and content
Inventor: PARK MAN-KYU
IPC: G06K15/00
Filed: 1988-01-30
Granted: 1993-04-29
Abstract: The method can print or display the previous  file  name  and contents selectively according to the key  signal  input.  If  the signal on code key and list key is inputted to CPU (1),  the  file name  and  contents  are  stored   at   the   registers   (AA,BB), respectively. If he key signal for carrage return is not inputted, the contents of the register (BB) are added to the register  (CC). In the case of inputting the carrage return key, the first line of contents and file name stored at the registers (AA,CC) is printed. The first line also is displayed in the case of inputting the code key and the display key. The registers (AA,BB,CC) are  cleared  in the case of inputting the up/down key signal.
Patent KR-910002279-B1 (KR)
Inventor: SHOGO YAMAGUCHI
IPC: B67C3/12
Filed: 1988-02-12
Granted: 1991-04-11
Abstract: 내용 없음.
Patent KR-900008506-B1 (KR)
Inventor: YAMAZAKI SHUNPEI
IPC: C23C16/511
Filed: 1988-02-23
Granted: 1990-11-24
Abstract: 내용 없음.
Patent KR-960002750-B1 (KR)
Inventor: WIDEMANN FRIEDRICH
IPC: B60H1/22
Filed: 1988-04-22
Granted: 1996-02-26
Abstract: 내용 없음.
Patent KR-950012333-B1 (KR)
Inventor: JOB ROBERT CHARLES
IPC: C08F10/00
Filed: 1988-05-03
Granted: 1995-10-17
Abstract: 내용 없음.
Patent KR-970005217-B1 (KR)
Inventor: LENDARD JEFFERY B
IPC: H03L7/081
Filed: 1988-06-29
Granted: 1997-04-14
Abstract: 내용 없음.
Patent KR-920007889-B1 (KR)
Inventor: KAKUTA YOSHIAKI
IPC: F01P5/08
Filed: 1988-10-11
Granted: 1992-09-18
Abstract: 내용 없음.
Patent KR-910007438-B1 (KR)
Inventor: OTSUKA NOBUAKI
IPC: G11C17/00
Filed: 1988-10-28
Granted: 1991-09-26
Abstract: 내용 없음.
Patent KR-920009349-B1 (KR)
Inventor: YAMAMOTO HAJIME
IPC: G03G15/01
Filed: 1988-11-03
Granted: 1992-10-15
Abstract: 내용 없음.
Patent KR-970007899-B1 (KR)
Inventor: JULIAN THOMAS N
IPC: A61K9/36
Filed: 1988-11-14
Granted: 1997-05-17
Abstract: 요약없음
Patent KR-960005486-B1 (KR)
Title: Luminance/color separating and outtine compensating circuit
Inventor: LEE MYUNG-HWAN
IPC: H04N9/77
Filed: 1988-12-17
Granted: 1996-04-25
Abstract: The circuit includes A/D converter(10) to sample image data, a metrics(80) to filter luminance signal, a delaying circuit(20) to pick out standard points and sample points, edge detector(70) to detect edge in 2D space, comparator(30) to compare the points, a luminance/color separator(40) in image signal, and an outline compensator (60). The circuit separates luminance and color signals to find out outline and then compensate(50) it in televisions.
Patent KR-910005497-B1 (KR)
Title: Apparatus for interface between isdn exchanger and remote subscribers
Inventor: LEE JONG-HYUN
IPC: H04L12/12
Filed: 1988-12-23
Granted: 1991-07-31
Abstract: The  apparatus converts the 2B+D+C channel  inforamtion  with transmission  speed  of  160kbps  into  the   data   stream   with transmission  speed  of  2.048Mpbs,  divides  the  2B+D+C  channel information into each channel information  and  transmittes  to  a common channel unit and  a  CPU.  The  apparatus  includes  an Utranceiver (6) for converting the line data into the  system  data and for generating a synchronous clock  pulse  (C4)  and  a  frame pulse (F0), a channel divideer (7) for dividing the 2B+D+C channel data into 2B, D and  C  channel  data  and  for  transmitting  the divided data to the U-tranceiver by adding the DSTi  bus  data,  a D- channel controler (8) for communicating the D-channel data  with the CPU a c- channel extraqcting unit (10) for extracting  control bit from the c-channel data.
Patent KR-940006233-B1 (KR)
Inventor: NISHIZAWA ATSUSHI
IPC: B41J25/308
Filed: 1989-01-25
Granted: 1994-07-13
Abstract: 내용 없음.
Patent KR-950004546-B1 (KR)
Title: Fuse signal detecting apparatus having light source and reflecting mirror
Inventor: LEE NAM-JAE
IPC: F42C13/00
Filed: 1989-02-02
Granted: 1995-05-02
Abstract: A detecting appts. for carrying out a function test of an explosive fuse in use of a light source and a reflection mirror, comprises a main body (1), a speed-up device (2), a rotation member (4) having an upper (5) and a lower members (6), a holding member (17), and a cable holder (13) with a handle (15). A chamber (7) receiving an explosive fuse is formed at the upper rotation member. A fixture cover (9) with a cap nut (10) may close the chamber opening after loading the fuse. The holding member having a semi-cicular grooved reflector and a diode (20) is fixed to a support (12) at the middle portion of the upper rotation member. Optical cables (11, 11-1, 14) passing through the upper rotation member and the cable holder are also prepared.
Patent KR-910005416-B1 (KR)
Title: Process for preparing kalcium salt of 6-methyl-3,4-dihypro-1,2,3-oxathiadine-4-one-2,2-dioxide
Inventor: YIM HUN
IPC: C08L71/00
Filed: 1989-04-26
Granted: 1991-07-29
Abstract: A             process             for             preparing 6- methyl-3,4-dihydro-1,2,3-oxathiadin-4-on-2,2-    dioxide.K    of formula  (I)  comprises  reacting  methylisocyanate   of   formula CH3-N=C=O with  fluorosulfonic  acid  of  formula  HOSO2F  in  the presence of diketene of formula (II) at  0-60  deg.C,  esp.  10-35 deg.C.   Pref.   the   molar   ratio   of   melthylisocyanate   to fluorosulfonic acid is 1-1.5.  (I)  is  useful  as  an  artificial sweetener.
Patent KR-920003300-B1 (KR)
Inventor: GOMURASAKI SATOSI
IPC: G01P15/09
Filed: 1989-05-03
Granted: 1992-04-27
Abstract: 내용 없음.
Patent KR-0136277-B1 (KR)
Title: Process and apparatus for devolatilization of polymer solution
Inventor: ANOREA NATTIUSSI
IPC: B01D1/22
Filed: 1989-07-25
Granted: 1998-04-25
Abstract: a) feeding the solution via inlet 1 to a zone of indirect heat exchange (21), in which the ratio of the surface used for the heat exchange to the flow of the solution is above 80 m<2>/m<3>/h; b) passing the solution through each of the channels (14) at a speed of less than 0.5 mm/second; c) keeping the polymer solution in each channel for about 120 to 200 seconds and d) separating the volatile components from the devolatilized polymer solution. i
Patent KR-970007508-B1 (KR)
Title: Ptc elements
Inventor: KIM TAE-YUN
IPC: H01C7/02
Filed: 1989-07-31
Granted: 1997-05-09
Abstract: A PTC element formed by adding PbO glass to PTC composite  containing barium titanate, mangan dioxide, semiconductor element  and an excess of TiO2 is disclosed. Thereby, it is possible to  enhance PTC temperature characteristic.
Patent KR-920010767-B1 (KR)
Inventor: GOTTFRIED SEIDINGER
IPC: B21B39/00
Filed: 1989-08-03
Granted: 1992-12-17
Abstract: 내용 없음.
Patent KR-0133853-B1 (KR)
Inventor: TAKANO JUNICHI
IPC: C12P13/08
Filed: 1989-10-31
Granted: 1998-04-21
Abstract: 내용없음
Patent KR-930000724-B1 (KR)
Title: Apparatus for protecting power circuit of a mobile phone
Inventor: SONG HAK-JE
IPC: H04B7/26
Filed: 1989-11-30
Granted: 1993-01-30
Abstract: The protect circuit cuts off power source when  short  occurs on a load. The protect circuit  includes  a  comparator  (U1)  for comparing output voltage of a powr unit and a reference to  detect short of load stage,  a  power  transistor  (Q2)  for  controlling switching power transistor (Q1) according to output voltage  level of the comparator, and a diode (D1) for suppressing  base  voltage of the power transistor below 0.6 V so that  the  current  from  a source can not flow through the switching power transistor (Q1).
Patent KR-940005285-B1 (KR)
Inventor: KOKURE KATSUO
IPC: H01L21/306
Filed: 1989-12-26
Granted: 1994-06-15
Abstract: 내용 없음.
Patent KR-930000636-B1 (KR)
Inventor: URAKAWA YUKIHIRO
IPC: H03K19/0175
Filed: 1989-12-27
Granted: 1993-01-28
Abstract: 내용 없음.
Patent KR-970005044-B1 (KR)
Inventor: CARABASI R ANTHONY
IPC: A61K35/12
Filed: 1988-10-24
Granted: 1997-04-11
Abstract: 내용없음.
Patent KR-0139829-B1 (KR)
Title: 탈색 전위 황산 암모늄의 제조방법
IPC: C01C1/24
Filed: 1990-01-12
Granted: 1998-07-01
Abstract: 내용 없음.
Patent KR-0154334-B1 (KR)
Title: Integrated circuit
Inventor: ANOLD YOHANNES YOULIANA BOUDEB
IPC: H01L21/339
Filed: 1990-02-14
Granted: 1998-12-01
Abstract: A delay line, especially for delaying t.v. signals, comprising a series of signal storage capacitances, an input line, an output line, selection transistors between the storage capacitances and the input and output lines and a digital shift register for activating the selection transistors. According to the invention, the output line comprises a central part, on either side of which signal storage capacitances with associated selection transistors are located, which in turn are located between the central part of the output line and the associated parts of the shift register. The design according to the invention results in a compact configuration, which moreover has the advantage that the parasitic capacitance of the output line is comparatively low. The configuration can be readily extended to two interlaced delay lines having a single common shift register.
Patent KR-920011014-B1 (KR)
Title: Golf ball
Inventor: U YONG-KYU
IPC: A63B37/00
Filed: 1990-04-04
Granted: 1992-12-26
Abstract: The golf ball molded of two half parts and arranged  to  have 20 regular triangle facets each  having  dimples  in  distribution over the spherical face  has  a  division  line  between  the  two halves, the  line  being  selected  from  the  symmetric  line  or dislocation symmetry line for dimple  arrangement  and  having  no dimples on the line; a number of No. 1  dimples  arranged  in  the regular triangle facets; No. 2  dimples  each  positioned  in  the center of each side of the facet;  some  cross  points  between  a facet side and the division line; No. 3 dimples in pairs, at least one pair being positioned at the cross point to play an equivalent role to that of No. 1 or No. 2 dimple and each No. 3 dimple  of  a pair being positioned in  opposition  to  each  other  across  the division line. The ball presents the maximum number  of  symmetric lines  and  dislocation  symmety  lines  for  dimple  pattern  and minimizes the area of no dimple.
Patent KR-100191965-B1 (KR)
Title: High purity aromatic polyesters
Inventor: HAMPL EDWARD F
IPC: B41M5/44
Filed: 1990-05-04
Granted: 1999-06-15
Abstract: This invention provides oligomer-free polyesters that consist essentially of repeating, interpolymerized units derived from isophthalic acid and/or terephthalic acid, and 9,9-bis-(4-hydroxyphenyl)-fluorene, a process for making such polyesters and articles comprising said polyesters such as electrical capacitors, optical films and fibers.