baber/WOPTO huggingface dataset:
Patent KR-20010001291-A (KR)
Inventor: HAN GEUM SU
IPC: C07C67/00
Filed: 1999-06-03
Abstract: PURPOSE: A process of preparing the titled compound capable of removing water from the system without any special operation by reacting L-phenylalanine and methanol using a strong acid and fuming sulfuric acid is provided, which inhibits hydrolysis of L-phenylalanine methyl ester and improves the yield of L-phenylalanine methyl ester. CONSTITUTION: The L-phenylalanine methyl ester is prepared by a process consisting of: reacting L-phenylalanine and methanol in the presence of sulfuric acid and fuming sulfuric acid; neutralizing by adding an alkali catalyst solution dissolved in methanol to the obtained reaction solution; removing methanol by concentrating the reaction solution; and extracting L-phenylalanine methyl ester of the reaction solution from an organic solvent layer by adding an organic solvent to the obtained concentrated reaction solution. The process has an advantage of producing the L-phenylalanine methyl ester in a simple manner and at low costs as compared to conventional technique.
Patent KR-20000005881-A (KR)
Inventor: WATANABE MITSUNORI
IPC: F01M11/06
Filed: 1999-06-03
Abstract: PURPOSE: A lubricating device of a four-cycle engine is provided to certainly perform the inner lubrication and to be economically lubricated. CONSTITUTION: The lubricating device contains:an oil sump(18) installed near a crank chamber(16); a valve gear room(34) accepting the crank chamber(16) and each valve apparatus of the suction and exhaust to circulate oil; a stirring unit installed in the crank chamber(16) to make the oil as mist by stirring the oil sent by a first oil-supplying piece(46); and a connecting path(32) for connecting through the valve gear room(34).
Patent KR-20010001322-A (KR)
Inventor: PARK MUN SEO
IPC: G01M99/00
Filed: 1999-06-03
Abstract: PURPOSE: A cap tilting durability tester is provided to evaluate the durability in a shorter period of time by substituting a pneumatic cylinder for a hydraulic cylinder and a simple controller for other components, so that making the structure simple. CONSTITUTION: A cap tilting durability tester includes a cap(20) turned on or off by up and down motion according to a power supply, a cylinder(21) connected to the cap, a pneumatic pressure supplier(22) for applying pressure, a power supplier(23), and a controller(24) for sensing time and number and transmitting to the cylinder. The pneumatic pressure supplier and the power supplier are connected to the controller. The cap is raised or lowered by the control of the controller.
Patent KR-20010001770-A (KR)
Inventor: KIM RAE SEONG
IPC: H01L21/304
Filed: 1999-06-08
Abstract: PURPOSE: A method for cleaning a plasma enhanced chemical vapor deposition(PECVD) chamber is provided to prevent oxide particles from being dropped into a wafer by a subsequent process while an oxidation layer is deposited in the PECVD chamber, by completely eliminating the oxide particles remaining in the chamber. CONSTITUTION: High pressure etchant gas is injected into a plasma enhanced chemical vapor deposition(PECVD) chamber(10) to generate a plasma. Low pressure etchant gas is injected into the PECVD chamber to generate a plasma. The high pressure is more than 4 Torr, and the low pressure is chosen from a scope from 0.1 to 3 Torr. And, the etchant gas is C2F6 gas, NF3 gas, C3F gas or a composition thereof.
Patent KR-20010002985-A (KR)
Inventor: LEE JEONG HO
IPC: H04W92/04
Filed: 1999-06-19
Abstract: PURPOSE: A method for connecting a wireless data service reference network by using a private line, a private network, and a private component is provided to constantly/stably supply a wireless data service by using a private line and a private component only for wireless data service. CONSTITUTION: A signal for a wireless data service received from a corresponding base station is transmitted to a mobile station controller(MSC) by using a pass which is equal to an existing voice pass. The signal for the wireless data service is transmitted to an interworking function(IWF) by using a determined protocol of a frame relay. A signal transmitted from the IWF is connected to a public switched telephone network(PSTN) through the MSC, and is connected with a service supplier by using a private network different from an existing reference network model transmitted to the service supplier. A method for connecting a wireless data service reference network by using a dedicated component is connected with a communication service supplier by using the PSTN such as an existing reference network model without using the private network. The communication service supplier is respectively equipped with a wire data service system and a wireless data service system, and uses the dedicated component such as a private phone number and a modem-pool, for supplying the wireless data service. In the case of Internet communication using wireless data communication, the method use not a universal line from a switch such as a hub in the Internet network but a private Internet network(12). Therefore, the method provides very stable Internet connection environment to a user regardless of the Internet traffic in a switching center.
Patent KR-20010004092-A (KR)
Inventor: JUNG IN GAP
IPC: H01J11/22
Filed: 1999-06-28
Abstract: PURPOSE: An electrode forming method of a plasma display panel using an electrolytic plating is provided to enhance a production yield by forming a plating-preventive patter exposing a bus electrode forming area, and does not requires expensive thin film forming device by using an electrolytic plating technique. CONSTITUTION: The first electrode including a terminal part is formed on a substrate. A plating preventive pattern(2) exposes the first electrode of a contact area between the terminal part and the second electrode area. The terminal part of the first electrode is connected to a power-supply part, an electrolytic plating is performed, and the second electrode is formed on the first electrode.
Patent KR-20010010134-A (KR)
Inventor: LEE MYEONG WON
IPC: A47L9/22
Filed: 1999-07-16
Abstract: PURPOSE: A motor for a vacuum cleaner is provided, to simplify the assembling process and to make the interior of a body be compact, thereby to reduce the manufacturing cost. CONSTITUTION: The motor for a vacuum cleaner comprises a body; a motor and an impeller which generate the inhalation power; and a triac which controls the phase of AC power, wherein the motor is provided with a stator core part(30); and a harmonic frequency reducing transformer part which reduces the harmonic frequency generated due to the phase control of the triac. The harmonic frequency reducing transformer part(40) comprises three iron cores(41,42,43) which are projected on the stator core part(30); a harmonic frequency reducing coil(46) which is inserted into the middle core among the three iron cores(41,42,43) and whose one terminal is contact with the power source and the other terminal is contact with the stator coil of the motor serially; and an E-shaped iron core(44) which is connected with the terminal of the iron core, prevents the harmonic frequency reducing coil(46) from being separated, and forms the closed magnetic circuit.
Patent KR-20000017047-A (KR)
Inventor: TATE AKIRA
IPC: H04N1/21
Filed: 1999-08-03
Abstract: PURPOSE: A recording medium, recording apparatus, reproducing apparatus, recording method, and recording medium which a computer is capable of reading, which records a great amount of a still picture data and embodies the search by a recording view. CONSTITUTION: The recording medium comprises: a still picture group managing information (VOBGI)(3) for managing the N number of still picture data (VOB)(1) as a still picture group (VOBG)(2), having a recording view (F_RECTM) of the still picture data (VOB)(1) which is initially recorded in the still picture group (VOBG)(2) and a recording view (L_RECTM) of the still picture data (VOB)(1) which is lastly recorded. Thereby, it is possible to restraining the size increasement of data of the managing information.
Patent KR-20000023172-A (KR)
Inventor: BILLEU GERARDE
IPC: F02N11/08
Filed: 1999-09-15
Abstract: PURPOSE: A control device is provided to prevent the contact oxidation, the abrasion, the corrosion and contact crack by stable switching. CONSTITUTION: A motor(M) of a starter(D) is connected to a circuit brake(T2) between the voltage terminal B+ supplied from a battery of a vehicle and the grounding. The circuit brake is composed of a power supply transistor driven by a control unit(2). The power supply transistor is an MOSFET type transistor and having the gate to be controlled by the level of the voltage generated in a microcomputer and supplied to an output terminal. The control unit including the microcomputer controls the power supply of an electromagnetic coil(B) controlling the pinion movement of the starter. Accordingly, the coil is connected between the terminal(B+) supplied with voltage from the battery and the grounding with the power supply transistor controlled by the control unit.
Patent KR-20010028895-A (KR)
Inventor: LEE DONG RYUL
IPC: H04B7/14
Filed: 1999-09-27
Abstract: PURPOSE: The device for controlling a line switch equipped a radio relay function is provided to perform data transceiving between an adjacent peripheral communication terminal and a remote communication system, so as to control a switching operation when an accident happens such as an earth fault current, a short circuit, and to utilize the device as an effective communication resource. CONSTITUTION: An analog voltage/current input unit(21) converts an analog voltage/current signal into a signal for a digital process. A DSP(Digital Signal Processor)(22) performs a digital signal process for the signal, and analyzes a line error state. A DSP memory(23) stores a program for processing the signal and digital processed data. A photo coupler(32) performs on/off operations of a line switch. A digital input unit(31) converts an analog output signal of the photo coupler(32) into a digital signal. A communication/controller(26) outputs switch control signals, and supplies a generating time of a line error state to a remote host system. A modem interface(28) performs data communication between the communication/controller(26) and the remote host system. A control memory(35) stores a control program of the communication/controller(26) and reads/writes various data. A clock unit(36) supplies real time information to the communication/controller(26). A digital output unit(33) converts the digital switch control signals into analog signals, and outputs the converted analog signals. A switch driver(relay contact)(34) drives on/off operations of the line switch. A DPRAM(Dual Port RAM)(24) performs data communication between the DSP(22) and the communication/controller(26). A serial interface(27) performs serial communication between an external measurer and the communication/controller(26). A key input/display(25) inputs various command data to the communication/controller(26), and displays error state information. A GSP(Global Positioning System) receiver(29) receives a GSP signal to detect absolute time information. A RF(Radio Frequency) transceiver(30) performs a data transceiving operation with an adjacent communication terminal.
Patent KR-20010028955-A (KR)
Inventor: KO YEONG HAK
IPC: G08G1/04
Filed: 1999-09-28
Abstract: PURPOSE: An intelligent traffic system using long-distance infrared rays is provided to remove radio frequency which is harmful to human body by transmitting and receiving traffic information through optical cables. CONSTITUTION: The intelligent traffic system using long-distance infrared rays includes infrared transmitting and receiving parts(100), vehicle transmitting and receiving part(200), optical cables(300), traffic lights(500), and boards for displaying traffic situation (400). Each of infrared transmitting and receiving parts(100) is installed at both sides of street. The vehicle transmitting and receiving parts(200) are installed at each of vehicles. The vehicle transmitting and receiving parts(200) transmit IDs of each vehicle and receiving traffic information from the infrared transmitting and receiving parts(100). The traffic information is transmitted through optical cables(300) to the infrared transmitting and receiving parts(100). The traffic lights(500) are controlled by control signals transmitted through the optical cables(300) thereto, respectively. The boards for displaying traffic situation (400) displays traffic information received through the optical cables(300), respectively.
Patent KR-20000028826-A (KR)
Inventor: TAKAMOTO KYUECHI
IPC: H02J7/00
Filed: 1999-10-05
Abstract: PURPOSE: A DC-DC converter is provided to suppress the increase of cost, and to use the supply capability of AC adaptor to the maximum. CONSTITUTION: A control circuit(21) of a DC-DC converter(20) consists of a second current detective amplification circuit(12), a second and third error amplification circuits(14,15), a PWM comparison circuit(16), a triangular wave oscillation circuit(17) and an output circuit(18) with an additional voltage detective amplification circuit(22). The current source voltage(Vin) from an AC adaptor(4) is inputted to the non-reverse input terminal of the voltage detective amplification circuit(22). A first reference voltage(Vref1) is inputted to the reverse input terminal. The voltage detective amplification circuit(22) outputs a detection signal(SG9) by the comparison and amplification of the current source voltage(Vin) and the first reference voltage(Vref1) to the first non-reverse input terminal. The PWM comparison circuit(16) compares the detection signal(SG9), a lowest level signal between the second and third error amplification signal(SG5,SG6), and the triangular wave signal(SG7). The output circuit(18) supplies the reverse signal(SG1) of a duty control signal(SG8) to the gate of an output transistor(3).
Patent KR-20010036158-A (KR)
Inventor: HONG YU JIN
IPC: G06F3/14
Filed: 1999-10-06
Abstract: PURPOSE: The user interface apparatus and a method for moving an icon in a portable terminal are provided to improve convenience of an user interface to select a service item in a portable terminal by using a direction key and selecting an icon corresponding to an appointed program. CONSTITUTION: Icons are displayed in a display unit(30). A direction key unit(32) is pressed to select an icon. A control unit(34) displays the icons in the display unit, senses a direction key pressed and selects an icon. Additionally, the control unit(34) performs a service corresponding to a selected icon with pressing an appointed key.
Patent KR-20010036313-A (KR)
Inventor: KIM BYUNG DUK
IPC: A47B61/00
Filed: 1999-10-07
Abstract: PURPOSE: A keeping device is provided to keep clothes clean while a humidifier and a heater are installed in the inside of a cabinet. CONSTITUTION: A device comprises a cabinet(10), a hanger(15), a circulation pan(20), a motor(25), a humidifier(30) and a heater(40). The cabinet has a door(11) in the front side to be opened. The hanger is installed in the inside of the cabinet to keep clothes by hanging. The circulation pan and the motor are installed in the upper side of the cabinet and circulate the air of the cabinet. The humidifier is installed in the inside of the cabinet, and raises the humidity of the inside air of the cabinet. The heater is installed in the opposite side of the humidifier and dries the inside air of the cabinet. A humidity sensor(81) and a temperature sensor(82) are installed in the cabinet. A pulling device(50) to smooth out pants by pulling is also installed in the cabinet. A circulation passage to circulate heated air is formed in the cabinet, and a filter to remove humidity and dust is installed in the circulation passage.
Patent KR-20000035279-A (KR)
Title: Method of manufacturing a filtration bag
Inventor: BUCKLEY RICHARD K
IPC: B01D29/11
Filed: 1999-11-06
Abstract: PURPOSE: A method of manufacturing a filtration bag is provided which two thermoplastic sheets adapted to filter a liquid are welded together along a desired seam line for forming a gab using reciprocating translating motion for causing, responsive to the dissipation of frictional energy, melted thermoplastic material at the desired seam line. CONSTITUTION: A method of manufacturing a filtration bag comprises: providing a pair of oppositely disposed members, one of the members adapted for reciprocating translating motion relative to the other of the members, each member being provided with tool elements having a textured surface for grippingly engaging flexible sheet material disposed between the members along an intended seam location on the material; disposing a pair of superposed flexible sheets made of thermoplastic material suitable for filtering a liquid between the members and causing forced engagement of the sheets by said tool elements at the intended seam location; providing for a time period the one member to undergo reciprocating translating motion relative to the other member in a plane substantially parallel to the sheet material engaged by the tool elements; removing the seamed sheets from between the members; and trimming excess sheet material extending beyond the seam.
Patent KR-20010045884-A (KR)
Inventor: KIM JEONG HEON
IPC: H01M4/72
Filed: 1999-11-09
Abstract: PURPOSE: Provided is a gravity die casting method of a spine grid for a lead storage battery, which make the spine grid have a temperature gradient in the longitudinal direction by dividing a mold into at least two parts and then heating and cooling, if the length of the spine grid is more than 30cm. CONSTITUTION: The gravity die casting method for the spine grid comprises the steps of: setting the upper and lower molds(10) at a casting and a solidifying temperature by a controller(2); coupling the upper mold to the lower mold; heating the mold(10) to have the set temperature by heat lines(1) of the controller(2); injecting Pb-Sn-Ca alloy molten solution and then cooling with water by opening solenoid valves(5); separating the upper mold from the lower mold to extract the product.
Patent KR-20000035427-A (KR)
Title: Method and apparatus for controlling digital data
Inventor: MIWA KUNIHIKO
IPC: H04N9/804
Filed: 1999-11-12
Abstract: PURPOSE: A method and an apparatus for managing recording and playback of such digital contents is provided to use the digital watermarking and scrambling techniques without an additional information detector in a drive. CONSTITUTION: From digital data, any additional information electronically embedded therein is detected and, if such additional information is detected, then access management of the digital data is performed using the additional information. Next, the digital data is scrambled for recording the same onto a medium, and in case of playback control, the scrambled digital data is descrambled, thereby to detect any electronically embedded additional information and copy mark from the descrambled digital data. Using such detected information, playback control of the digital data is performed.
Patent KR-20000047656-A (KR)
Inventor: UENO ICHIROU
IPC: B62D65/18
Filed: 1999-11-16
Abstract: PURPOSE: A roller conveyor for conveying a long object is provided which can economize a production cost. CONSTITUTION: A roller conveyor comprises: a drive roller(31) for frictionally driving a long object lengthwise by contacting on a roller contact unit of the long object; a flotable supporting frame(3C) attached to a fixation side member which an outer periphery of a driving roller to a roller contact unit can move freely; and pressurizer(3H) for applying a force on the floatable supporting frame as to acquire a friction force which can convey a long object while an outer periphery surface of a driving roller is being pressed down on the contact unit of a roller.
Patent KR-20010048513-A (KR)
Inventor: CHO SOO HYUN
IPC: C09D5/10
Filed: 1999-11-26
Abstract: PURPOSE: A paint for preventing the metal corrosion and a corroded metal-repairing agent are provided, which have good durability and corrosion-preventing effect and are prepared by using a waste engine oil for reducing the manufacturing cost. CONSTITUTION: The paint for preventing the metal corrosion comprises 61 wt% of zinc dust; 8 wt% of molybdenum; 5 wt% of aluminium; 9 wt% of a waste oil; 8 wt% of a metal extracted from a waste oil; 0.3 wt% of cobalt; and 8.7 wt% of titanium. The corroded metal-repairing agent comprises 50 wt% of zinc dust; 14 wt% of molybdenum; 6 wt% of aluminium; 4 wt% of a waste oil; 14 wt% of a metal extracted from a waste oil; 0.6 wt% of cobalt; and 11.4 wt% of titanium.
Patent KR-20000047954-A (KR)
Inventor: ARAKI KAZUTOSHI
IPC: G11B15/093
Filed: 1999-12-07
Abstract: PURPOSE: A switch for detecting an operation mode of a VTR(video tape recorder) is provided to prevent noise in turning on/off a switch by cleaning switch contact units through dummy-on and to eliminate misjudgment of a working mode through exact detection of switch on/off. CONSTITUTION: Dummy on protrusions(61a'-61d') to dummy on switches are installed in a switch compressive protrusions(61a-61d) of a switch rotor(57) to turn on/off a switch(56) according to operation modes of a VTR. In switching from a playback mode of stand-by status to a next operation mode, a switch for detecting the operation mode to clean switch contacted faces by dummying on the switches with the dummy on protrusions(61a'-61d') is embedded. Thereby, the mis-operation in detection and a control of operation mode by noise generated at on/off of switches is prevented.
Patent KR-20010064873-A (KR)
Inventor: LEE SEOK HO
IPC: H04L12/28
Filed: 1999-12-20
Abstract: PURPOSE: A remote advertising CPE(Client Premises Equipment) in a B-WLL(Broadband Wireless Local Loop) and a remote advertising method using thereof are provided to offer advertisement information using a B-WLL which can offer communication services in two ways. CONSTITUTION: A remote advertising CPE in a B-WLL consists of a CSM(CPE Service Module)(330), a CMM(CPE Modem Module)(320), and a CRM(CPE RF Module)(310). The CSM(330) is composed of a CSM control part(331), a CSM processing part(332), a CSM interface part(333), a CSM display part(334), a CSM synchronization part(335). The CSM control part(331) controls the CSM processing part(332), the CSM interface part(333) and the CSM display part(334). The CSM processing part(332) executes conversion processing for a signal from the CMM(320) and transfers it to the CSM interface part(333). The CSM interface part(333) executes conversion processing for the signal from the CSM processing part(332) so that it can be displayed in the CSM display part(334). The CSM synchronization part(335) takes charge of the clock synchronization of the CSM(330). The CMM(320) is composed of a CMM control part(321), a CMM processing part(322), a CIM processing part(323), and a CMM synchronization part(324). The CRM(310), executing conversion processing for a down-frequency signal of the B-WLL, transmits an IF signal to the CMM(320). Also the CRM(310) converts an IF signal from the CMM(320) and transfers it as an up-frequence signal of the B-WLL.
Patent KR-20010058273-A (KR)
Inventor: CHO YONG SEOK
IPC: C22C7/00
Filed: 1999-12-27
Abstract: PURPOSE: A method for manufacturing Ti-contained ferritic stainless steel for electronic components is provided to improve recovery rate of Cr and lower Si-content in stainless steel by adding Al acting as deoxidizer at the last reduction stage of AOD process and controlling slag constituents over AOD process. CONSTITUTION: In a manufacturing a Ti-contained ferritic stainless steel (Ti 0.2-0.5) for electronic components through AOD (Argon Oxygen Decarburization) and VOD (Vacuum Oxygen Decarburization), the present invention is characterized in that 200-300kg of Al acting as deoxidizer is added to hot metal 80ton at the last reduction stage of AOD process and also the slag composition over the AOD process is controlled as follows: CaO 50-60%, SiO2 10% or less, Al2O3 15-20%, MgO 3-9%, and metal oxides 5-15%. In the obtained stainless steel, the silicon content is 0.25% or less.