baber/WOPTO huggingface dataset:
Patent KR-920001199-B1 (KR)
Title: A process for the preparation of foamed aromatization cap sules and the capsules produced thereby
Inventor: TUOT JAMES
IPC: A23L27/00
Filed: 1984-08-07
Granted: 1992-02-06
Abstract: Processes for the production of foamed aromatization capsules containing aromatic constituents of food materials are disclosed. The foamed aromatization capsules produced by these processes are also disclosed. The capsules have improved aroma retention and are able to float on top of water so as to more effectively deliver the released aromatic constituents to the user.
Patent KR-930001824-B1 (KR)
Inventor: YAMAMOTO TADASHI
IPC: H04M1/652
Filed: 1985-04-25
Granted: 1993-03-13
Abstract: 내용 없음.
Patent KR-930002126-B1 (KR)
Inventor: MOLES WARREN H
IPC: H04N9/78
Filed: 1985-05-30
Granted: 1993-03-26
Abstract: 내용 없음.
Patent KR-870001873-B1 (KR)
Title: Process for producing a 1,4-dialkylbenzene
Inventor: ISHIDA HIROSHI
IPC: B01J29/89
Filed: 1985-06-24
Granted: 1987-10-20
Abstract: The title compds. are prepd. by vaporous reacting benzene or monoalkyl benzene with alkylating agent i.e. ethylene, propylene, MeOH, EtOH in the presence of catalyst.  The catalyst is produced by (i) treating zeolite(mole raio of SiO2/X2O3 is up to 10, X=Al, B or Cr, restructive index=1-15) with silicate ester-contd. gas and (Iii) calcinating with oxygen-contd. gas. X-ray diffraction intensity of zeolite using by Cu K alpha at diffraction angle (2 theta) 7.8±0.2, 17.5±0.2, 17.7±0.2, 23.1±0.2, 23.3±0.2 deg. are. 5-30, 5-30, 5-30, 30-80, 20-50, respectively, against 100 of 8.7±0.2 and 8.9±0.2 deg..
Patent KR-890001925-B1 (KR)
Title: A shamp composition containing pancreation
Inventor: HO YONG-CHOL
IPC: C11D9/00
Filed: 1985-12-24
Granted: 1989-05-31
Abstract: A method for prepg. shampoo compsn. comprises (i) dispersing pancreatin 2-20 wt.% and cationic surfactant 2-20 wt.% into polystyrene/benzene soln. to obtain W/O emulsion, (ii) adding W/O emulsion to 2-10% protect-colloid aq. soln. (i.e. gelatin or PVA) to obtain W/O/W emulsion, (iii) drying benzene to prepare microcapsule, and (iv) adding capsules to common shampoo compsn. by 2-10%.
Patent KR-910001013-B1 (KR)
Inventor: MINTEN KARL L
IPC: H05K3/42
Filed: 1986-04-10
Granted: 1991-02-19
Abstract: 내용 없음.
Patent KR-940009691-B1 (KR)
Inventor: KITAMI TETSU
IPC: F16L58/02
Filed: 1986-07-04
Granted: 1994-10-15
Abstract: 내용 없음.
Patent KR-960005855-B1 (KR)
Inventor: TOWNSEND JOHN A
IPC: B60J5/06
Filed: 1986-11-14
Granted: 1996-05-03
Abstract: 내용 없음.
Patent KR-900004198-B1 (KR)
Title: Voltage controled oscillator with high speed current switching
Inventor: OUYANG KENNETH W
IPC: H03K3/023
Filed: 1987-03-13
Granted: 1990-06-18
Abstract: The VCO includes a reference capacitor which is charged and discharged by current source and sink output transistors. The output transistors are connected to control transistors in a current mirror fashion with current through the control transistors being maintained at a level proportional to the value of a control input voltage. The control transistors are selectively connected to the output transistors in a current mirror configuration to provide either current source or sink operation. Transmission gates are connected between the gates of the output and control transistors and selectively closed to render the proper output transistor conductive to achieve source or sink operation.
Patent KR-950004927-B1 (KR)
Title: Liquid detergents containing anionic surfactants succinate builder and fatty
Inventor: BOYER STANTON L
IPC: C11D1/83
Filed: 1987-03-30
Granted: 1995-05-16
Abstract: Liquid detergent compositions containing anionic synthetic surfactant, C12-C14 alkyl or alkenyl succinate builder and C12-C14 fatty acid, in a molar ratio of succinate to fatty acid of from about 0.8 to about 2.4, provide a minimum of suds in otherwise high sudsing compositions.
Patent KR-890005069-B1 (KR)
Title: New microorganism serratia sp.y-4 and producing method for semialkalin protease
Inventor: LEE JU-KYONG
IPC: C12N1/00
Filed: 1987-07-01
Granted: 1989-12-09
Abstract: Serratia sp.Y-4 is cultured in the medium containing 0.5% of soy bean oil and 0.04% of MnCl2. 4H2O, and then the cells are removed from culture broth.  The cell-free supernatant is concentrated and ammonium sulfate is added to the concentrated broth. The pellet obtained in the above process is dialyzed and freezedried.  The above crude extract is treated with acetone and semialkaline protease is purified by using ion-exchange chromatography and gel filteration.
Patent KR-920004049-B1 (KR)
Inventor: MONTGOMERY JAMES L
IPC: B63B21/04
Filed: 1987-08-12
Granted: 1992-05-23
Abstract: 내용 없음.
Patent KR-900004519-B1 (KR)
Title: A detergent for the front glass of car
Inventor: YUN JONG-MOON
IPC: C11D1/12
Filed: 1987-10-14
Granted: 1990-06-28
Abstract: A detergent for the front glass of car consists of 25-35 wt.% methanol, 0.005-0.02 wt.% sodium lauryl sulphate, water and a small amt. of blue dye. The detergent has a potent cleaning property, and is free of bubbles.
Patent KR-910010062-B1 (KR)
Title: Opiical interconnection of devices on chips
Inventor: MILLER DAVID A E
IPC: H04B10/00
Filed: 1987-11-13
Granted: 1991-12-12
Abstract: OPTICAL INTERCONNECTION OF DEVICES ON CHIPS Devices are optically interconnected on a large scale integrated circuit by fabricating gratings (31,32,33) on optical sources that direct the light beams toward a reflecting surface (38). The reflecting surface is positioned a predetermined distance from the surface of the chip such that it reflects light beams from the sources toward detectors (37,38,39) that are fabricated on or near the surface of the chip.
Patent KR-960005922-B1 (KR)
Inventor: MYRON TIMOTHY MAXON
IPC: C08G77/06
Filed: 1987-12-30
Granted: 1996-05-03
Abstract: 내용 없음.
Patent KR-900008237-B1 (KR)
Title: Viscosity reduction apparatus and method
Inventor: KIAILA WILLIAM J
IPC: E21B/
Filed: 1986-08-27
Granted: 1990-11-06
Abstract: A method and apparatus for reducing the viscosity of high viscosity material within a container. An electromagnetic enery source is mounted within a housing which is provided with a fixture that is configured to interconnect with the container of high viscosity material. A waveguide and a deflector are provided for directing the electromagnetic energy from the source to the container for heating the high viscosity material therein and reducing its viscosity.
Patent KR-970001151-B1 (KR)
Inventor: UBEL N ANDREW F
IPC: B24D11/02
Filed: 1988-04-01
Granted: 1997-01-29
Abstract: 내용 없음.
Patent KR-900007922-B1 (KR)
Title: Low noise amplifier of ku-band satellite broadcast receiver
Inventor: CHON SUN-IK
IPC: H03F3/19
Filed: 1988-05-18
Granted: 1990-10-23
Abstract: The low noise amplifier comprises a wave guide (1) receiving the satellite TV broadcasting signal of 11.7-12.2 GHz, an input matching circuit (2) matching the input signal with low noise, a first amplifier (3) amplifying the output of the circuit (2), a first intermediate matching circuit (4) matching the output of the circuit (3), a second amplifier (5) amplifying the output of the circuit (4) with ultra low noise, a second intermediate matching circuit (6) matching the output of the circuit (5) for amplifying at a third amplifier (7), a final matching circuit (8) matching the output of the circuit (7) with ultra low noise and high gain, and a frequency converter (9).
Patent KR-910008990-B1 (KR)
Inventor: YASHI GOGI
IPC: H01S3/092
Filed: 1988-06-02
Granted: 1991-10-26
Abstract: 내용 없음.
Patent KR-910006093-B1 (KR)
Title: Manufacturing method of semiconductor device
Inventor: KIM NAM-YUN
IPC: H01L21/3205
Filed: 1988-06-30
Granted: 1991-08-12
Abstract: A method for forming a phosphor silicate glass (PSG) layer on a semiconductor substrate (50) containing  semiconductor  elements comprises forming first to third PSG films (51,52,53) sequentially by a chemical vapor deposition (CVD) process while varyign  the  P concentration to increase gradually from the substrate towards the top surface of the PSG layer;  and  heat-treating  the  PSG  films (51,52,53) to redistribute the P concentration. The  method  gives smooth edge profiles on etching and avoids the cutoff of the other layers to improve the quality and yield rate of the  semiconductor device.
Patent KR-920001156-B1 (KR)
Title: Magnetic head for compute
Inventor: LEE SUNG-HYUN
IPC: G11B5/016
Filed: 1988-07-13
Granted: 1992-02-06
Abstract: The magnetic head mounted on a floppy disk driver comprises a reading and erasing head section (1) having a first gap (3)  of  a give length and a recording hed section (2) having  a  second  gap (4). A pair of side section (2) having a second gap (4). A pair of side portions joined to opposite ends of a middle portion  of  the first gap are straight with a length equal to the  length  of  the second gap. Both side portions of the first gap are  symmetrically bent at an angle (theta) towards the recording head  section.  The angle is within arange  from  one  degree  to  sixty  degrees.  An overlapped recording portion of information is  not  formed  on  a diskette.
Patent KR-910005612-B1 (KR)
Title: Highly integarted bi-cmos logic circuit
Inventor: SHIN YOON-SEUNG
IPC: H03K19/08
Filed: 1988-08-06
Granted: 1991-07-31
Abstract: The circuit using bipolar transistors and MOS transistors  to reduce the number  of  transistors  includes  a  number  of  input terminals (A,B) for inputting signals,  an  equal  number  of  MOS transistors (T1,T2) connected  with  one  another  is  series  and controlled  by  the  input  signals,  an  equal  number   of   MOS transistors (T3,T4) connected with one  another  in  parallel  and controlled by the  input  signals,  and  two  bipolar  transistors (Q1,Q2) base- controlled by the MOS transistors.
Patent KR-950011809-B1 (KR)
Title: Korean character compound writing method in laser printer
Inventor: CHONG JONG-OH
IPC: G06K15/12
Filed: 1988-09-30
Granted: 1995-10-10
Abstract: The method comprises the steps of dividing korean characters of assembling type 2-byte code into a initial sound, a medial vowel and a final consonant of the character; searching the type of the initial sound, the medial vowel and the final consonant from a specific table; searching for the starting address of each character element from a starting address table; saving all the character elements after reading information from a font image storage memory; and saving all the characters by logically gathering the later saved character elements with the first saved character elements.
Patent KR-910005552-B1 (KR)
Inventor: ESTEL LEE R
IPC: G02B15/173
Filed: 1988-12-10
Granted: 1991-07-31
Abstract: 내용 없음.
Patent KR-910010120-B1 (KR)
Title: Auto white balance circuit
Inventor: LEE HYO-SAM
IPC: H04N9/73
Filed: 1989-03-06
Granted: 1991-12-16
Abstract: The whitebalance warning circuit for checking the state of  a whitebalance to warn user of it comprises a display unit (LED) for displaying the state of whitebalance, first to third white  signal detecting units (200-202) for receiving the R,G,B signals  from  a video processor (102) of the video carmera to integrate the  R,G,B signals over a reference level, a warning control unit  (204)  for receiving the output signals from the detecting  units  (200-202), for checking whether the input  signals  have  a  constant  mixing ratio to detect the state of whitebalance and for compensating the detected balance state signals with a blank  pulse  from  a  sync. signal generating unit (203) of the camera to  drive  the  display unit.
Patent KR-920002873-B1 (KR)
Inventor: OMAE GASHIGO
IPC: G01F1/32
Filed: 1989-03-15
Granted: 1992-04-06
Abstract: 내용 없음.
Patent KR-930010064-B1 (KR)
Inventor: KOBAYASHI SHIRO
IPC: H01L21/3205
Filed: 1989-03-29
Granted: 1993-10-14
Abstract: 내용 없음.
Patent KR-920005908-B1 (KR)
Inventor: KOBAYASHI TOYOHIRO
IPC: H04B10/508
Filed: 1989-05-30
Granted: 1992-07-24
Abstract: 내용 없음.
Patent KR-0128344-B1 (KR)
Inventor: FORSTER HEING
IPC: C07D277/32
Filed: 1989-06-26
Granted: 1998-04-03
Abstract: 내용없음
Patent KR-920001326-B1 (KR)
Title: Integrated device having bidirectional i/o structure
Inventor: LEE HEE
IPC: G11C7/00
Filed: 1989-08-29
Granted: 1992-02-10
Abstract: The integrated device for inputting and  outputting  data  by I/O selection signals comprises an I/O port (3), an output circuit (1) for transmitting a state signal of an data bus (4) to the  I/O port (3) and an input circuit (2) for transmitting a state  signal of the I/O port (3)  to  the  data  bus  (4).  A  chip  protection terminal (6) blocks the I/O circuits (2,1)  to  protect  the  chip when it is not operated. A first gate means (NO2NO1) transmits  a selection signal of a  I/O  selection  terminal  (5)  and  a  chip protection signal of the chip selection terminal (6) to the output circuit (1). A second gate  mens  (NO2,NO1)  transmits  the  state signal of the I/O port (3) and the chip protection signal  to  the input circuit (2).
Patent KR-920001866-B1 (KR)
Title: Blood collecting tube
Inventor: KIM HAK-JU
Filed: 1989-09-11
Granted: 1992-03-06
Abstract: The vacuum blood collection tube is composed of  polyethylene terephthalate copolymer obtained  by  copolymerizing  polyethylene terephthalate  with  1,2-benzene  dicarboxylic  acid,  1,3-benzene dicarboxylid acid and/or its derivative. The collection  tube  has an improved transparency and a good blood- compatibility,  and  is used in the collection of the blood sample and the  separation  of the blood.
Patent KR-920004652-B1 (KR)
Inventor: OHISHI HIROTOSHI
IPC: H01H71/04
Filed: 1989-09-30
Granted: 1992-06-12
Abstract: 내용 없음.
Patent KR-0142881-B1 (KR)
Inventor: LABRIE FERNAND
IPC: A61K31/56
Filed: 1989-10-31
Granted: 1998-07-15
Abstract: 본 발명은 일반식 -R 1 [B-R 2 -] x L-G로 치환된 측쇄를 포함하는 신규한 에스트로겐 핵 유도체에 관한 것으로, 이 신규한 에스트로겐 핵 유도체는 안드로겐 관련 질병 및 에스트로겐 관련 질병의 치료에 유용한 조성물에 사용될 수 있다.
Patent KR-0164841-B1 (KR)
Title: Ion implantation apparatus for uniformly injecting an ion beam into a substrate
Inventor: TAMAI TADAMOTO
IPC: C23C14/48
Filed: 1989-11-21
Granted: 1999-01-15
Abstract: In an ion implantation apparatus for injecting an ion beam into a substrate at a controllable incident angle, the substrate (13a) is supported by a supporting section which comprises a disc shaped plate (13) for locating the substrate thereon and an injecting chamber (11) for disposing the disc shaped plate therein. The substrate is irradiated by the ion beam. The ion implantation apparatus comprises a first controlling section (20, 23) and a second controlling section (34). The first controlling section controls the supporting section so as to change a location of the substrate in relation to the ion beam. The second controlling section controls supporting section so as to change the controllable incident angle relative to the ion beam.
Patent KR-920000136-B1 (KR)
Title: Apparatus of welding induced wire of high pressure mercury lamp
Inventor: CHOI YONG-TAE
IPC: H01J9/36
Filed: 1989-11-28
Granted: 1992-01-09
Abstract: This welding equipment is composed of (A) base (1) having the guide- rail (2)(2')(3) on the top side, (B) clamping  tool  (4)  on (1) with clamping a ultra high pressure mercury lamp (P) by moving a jaw (6), (C) operating part (8) with welding and cutting orderly by introducing the wire (19), am (D) supplying part of introducing wire (19) coiled around a bobbin (20)(21) for  entrance  into  the introducing tunnel (14)(15) in the moving block (9).
Patent KR-920006189-B1 (KR)
Title: Semiconductor memory device and manufacturing method thereof
Inventor: JONG IN-SUL
IPC: H01L27/108
Filed: 1989-11-30
Granted: 1992-08-01
Abstract: The method for forming a polysilicon spacer on a sidewall  of the charge storage electrode of the laminated capacitor  structure to extend an area of the charge storage electrode to increase  the effective capacitance, comprises the steps of  forming  a  contact hole (9) for connecting a charge storage electrode (10) to a drain electrode of a moving gate to deposit a polysilicon film (10)  and a silicon nitride film (11) thereon, etching the films (10,11)  to form a charge storage electrode (10A), depositing a poly-Si  layer on the whole substrate to etch the poly-Si  layer  anisotropically to form a poly-Si spacer (12), forming a capacitor dielectric film (13) on the electrode (10B), and depositing a poly-Si  layer  (14) thereon to form a plate electrode (14A).
Patent KR-940004757-B1 (KR)
Title: Auto clutch pedal returning speed control device
Inventor: KIM CHAN-WON
IPC: B60K23/02
Filed: 1989-12-05
Granted: 1994-05-28
Abstract: The apparatus prevents shock to a power transmission and body by automatic recovery speed of clutch pedal without the skill of drivers. The device includes a clutch pedal (10) which has an hydraulic actuator (20) to control the recovery speed of clutch pedal (10), valve holes (22)(22) which are formed in a piston (21) of the actuator (20), a valve (23) which is closed on recovery to clutch pedal (10) to a valve hole (22), a multitude of anti-triangular type oil path groove (25) which are located in the cylinder (24), and a multitude of oil path groove (26) which are located in the lower of cylinder (24).
Patent KR-930010311-B1 (KR)
Title: Apparatus for forming cans
Inventor: SIRVET ENN
IPC: B21D43/14
Filed: 1989-12-13
Granted: 1993-10-16
Abstract: Apparatus for forming elongated metal cans (32) from relatively short cups (30) by utilizing a recriprocating ram (24) to drive the cups (30) one at a time through a die pack (28), is provided with a continously rotating feeder (40) that transfers the cups (30) from the exit of a gravity feed chute (26) to a receiving station (25) where each cup (30) is indexed for engagement by the ram (24) as it moves forward in its working stroke. The feeder (40) rotates through one complete revolution for each forward-return cycle of the ram (24) and during each revolution thereof a pocket (40b) in the feeder (40) receives a cup (30) from the chute (26), which cup (30) then moves along a curved guideway (43) to a receiving station (25). Prior to being engaged by a registry formation (48) at the receiving station (25) the cup (30) is engaged by a stripper (45) that removes the cup from the feeder pocket (40b). The feeder (40) continues to drive the cup (30) toward the registry formation (48) while the cup (30) is being stripped from the feeder pocket (40b). A formation (40c) on the feeder (40) maintains the cup (30) in engagement with the registry formation (48) while the cup (30) is initially engaged by the ram (24) during forward movement thereof.
Patent KR-920005271-B1 (KR)
Inventor: PARK BYONG-HA
IPC: G11B20/12
Filed: 1989-12-19
Granted: 1992-06-29
Abstract: 내용 없음.
Patent KR-950005433-B1 (KR)
Title: Polyester composite fiber
Inventor: U JONG-RYOL
IPC: D01F8/14
Filed: 1989-12-23
Granted: 1995-05-24
Abstract: The polyester fiber dyed by a basic dye having a good strength, coloring properties and alkali resistance properties was prepared. Thus, a polyester resin copolymerized with an isophthalic acid containing a metallic sulfonate group as a core component and a polyethylene terephthalate resin with an 0.66 inherent viscosity as a sheath component were spun at 289 deg. C through a composite spinning nozzle, cooled and wound in the velosity of 1,300 m/min. The obtained yarn was drawn at 87 degree C in the drawing ratio of 3.08, 700 m/min to give the fiber of 75 denier and 36 filaments.
Patent KR-920001624-B1 (KR)
Inventor: ASADA SHIRO
IPC: B29C70/42
Filed: 1989-01-20
Granted: 1992-02-21
Abstract: 내용 없음.
Patent KR-0159276-B1 (KR)
Title: Irradiating conveyance apparatus
Inventor: OSHIDA MAMORU
IPC: B29C71/04
Filed: 1990-02-14
Granted: 1998-12-01
Abstract: An irradiating apparatus comprises a bucket group (1) consisting a plurality of buckets (4) spaced from each other by an equidistance and connected to a first endless chain (6), and a roller group (2) consisting of a plurality of roller (5) located under the bucket group (1). Each bucket (4) comprises a barrel shaped body having a bottom which has a plurality of openings (7). Moreover, the bucket (4) receives an article (8) to be transferred such as preform and transfers it in a horizontal position therein. The rollers (5) are connected to second endless chains (9). A pair of rollers (5) are arranged parallelly in the transfer direction. The roller has a plurality of lands (10) which intrude in the openings (7) of the bucket. A pair of rollers (5) are rotated in the same direction to rotate the article (8) to be transferred. The roller group (2) travels at the same speed in the same direction as those of the bucket (4).
Patent KR-930010592-B1 (KR)
Inventor: WADA JUNICHI
IPC: B60G17/018
Filed: 1990-03-28
Granted: 1993-10-30
Abstract: 내용 없음.
Patent KR-950012435-B1 (KR)
Title: Making method for heated-treated beverage
Inventor: KWON STEVENS
IPC: A23F/
Filed: 1990-06-20
Granted: 1995-10-18
Abstract: A ready-to-serve heat treated beverage comprising a beverage vehicle containing milk protein, a beverage base containing coffee or tea, a buffering agent, kappa carrageenan in an amount up to 0.010% and a chelating agent for cations in an amount up to 0.25% containing at least 0.005% of sodium alginate and/or propylene glycol alginate, the said amounts being by weight based on the total weight of the beverage.
Patent KR-0148267-B1 (KR)
Inventor: SHIRAISHI DAKASHI
IPC: F02M25/08
Filed: 1990-07-12
Granted: 1998-11-02
Abstract: 본 발명은 연료탱크 내에서 발생하는 증발연료를 신속하게 연소처리할 수 있음과 동시에, 증발연료의 공연비 제어에의 영향을 억제할 수 있는 내연기관의 제어장치를 제공하기 위한 것으로서, 연료탱크와 이 연료탱크의 증발연료를 흡기통로에 인도하는 적어도 제1, 제2의 연료 공급통로와, 이 연료공급통로에 설치되어 증발연료의 공급량을 제어하는 제1, 제2의 제어밸브와, 엔진상태에 의거하여, 상기 제1의 제어밸브를 제어하는 제1의 제어량을 결정하는 제1의 제어량 결정수단과, 상기 제1의 제어량에 의거하여 상기 제2의 제어밸브를 제어하는 제2의 제어량을 결정하는 제2의 제어량 결정수단을 제공한다.
Patent KR-930001361-B1 (KR)
Title: Optical express search method and apparatus of laser disc
Inventor: HWANG YONG-HA
IPC: G11B7/085
Filed: 1990-09-17
Granted: 1993-02-27
Abstract: The apparatus enables a pick-up of a LDP to search a  certain position on a disk by attaching an encoder having linear slits  to the pick-up and an OPIC having optically detecting ability to  the side of the pick-up and counting the  number  of  slits  when  the pick-up moves. It includes a preamplifier (110) and DSP (111)  for generating track positioning signal (TR), an encoder (106)  having linear slits, an OPIC (107)  for  generating  the  1st,  2nd  OPIC signals (Q1,Q2), a  main  controller  (102)  for  controlling  the pick-up (108) according to the signal  (TR),  and  a  servo  motor controller (103) for controlling  the  revolving  direction  of  a servo motor (105) according to the 1st, 2nd OPIC signals (Q1,Q2).
Patent KR-940009347-B1 (KR)
Inventor: YOKOMATSU TAKAHIRO
IPC: F16L37/23
Filed: 1990-09-28
Granted: 1994-10-07
Abstract: 내용 없음.
Patent KR-930002959-B1 (KR)
Title: Method of casting crystaline silicon
Inventor: MUN SANG-JIN
IPC: C01B33/02
Filed: 1990-10-11
Granted: 1993-04-16
Abstract: A polycrystalline silicon ingot is prepared  by  (1)  coating quartz of carbon crucible with  a  slurry  mixed  silicon  nitride powder containing small amount of calcium chloride with ultra pure water, (2) filling a raw silicon in a water free casting crucible, (3) dissolving the silicon by heating the bottom of  the  crucible to 1,450 deg.C, (4) solidifying by cooling at the rate of  0.5-8.0 deg.C/min. In the substitute of silicon nitride containing calcium chloride, calcium chloride can be filled and coated to protect the wall of quartz and carbon crucible.
Patent KR-930003280-B1 (KR)
Title: Control circuit for turning on-off automatically
Inventor: CHOE KAK-JIN
IPC: H04B1/16
Filed: 1990-10-25
Granted: 1993-04-24
Abstract: The circuit turns off the power  of  the  portable  telephone automatically when the telecommunication is not performed to  save the power. The  circuit  comprises  a  ring  signal  detector  (1) detecting the call signal provided by the telephone  exchanger,  a first flip-flop applied by the main power (Vcc), a  talk  tap  (4) switching  on  manually  by  the  user  when  the  user  wants  to communicate, a second flip-flop (6) connected to the talk  tap,  a logical  multiplier  (7)  connected  to  the  first   and   second flip-flops, a switching circuit (8) switching the power applied to a transmitting tap (30).