baber/WOPTO huggingface dataset:
Patent KR-20030051963-A (KR)
Title: Detection method of iris rotation data for iris recognition system
Inventor: CHAE JANG JIN
IPC: G06K9/00
Filed: 2001-12-20
Abstract: PURPOSE: A method for detecting iris rotation information of an iris recognition system is provided to reduce a comparison time of an iris code when recognizing an iris executed by correcting and registering a gradient of an iris image. CONSTITUTION: An eye image of a user is obtained by a camera for registering iris image in an iris recognition system(S301). A gradient of an iris is detected from the obtained eye image(S302). The eye image is rotated as the detected gradient of the iris, and the gradient of the iris is corrected(S303). An iris code of the gradient-correct iris is created(S304). The created iris code is registered in an iris algorithm(S305).
Patent KR-20030055354-A (KR)
Inventor: JEUN BHO SUL
IPC: C01B31/30
Filed: 2001-12-21
Abstract: PURPOSE: Provided is a method for producing multi-functional carbon molding, palletized activated carbon. CONSTITUTION: The method comprises the steps of mixing uniform vegetable carbide with natural mineral powder 1-50 wt.% and molasses 20-40 wt.%, forming aged and dried molding of the mixture, carbonizing the mixture molding at 350-450°C, and activating the mixture molding by inputting vapor at 850-950°C.
Patent KR-20030056026-A (KR)
Title: asphalt concrete compound
Inventor: KIM HAK JAE
IPC: C04B24/28
Filed: 2001-12-27
Abstract: PURPOSE: Provided is an asphalt concrete composition having high adhesion to the existing roads, easy application, and saved maintenance cost by adding epoxy resin to conventional asphalt concrete. CONSTITUTION: The asphalt concrete used in road pavement comprises 5-10pts.wt. of asphalt, 90-95pt.wt. of aggregates(gravel and sand), 1-5pts.wt.(based on the amount of asphalt and aggregates) of epoxy resin, bisphenol A-based resin, and additives such as an amine-based filler and hardener.
Patent KR-20030058028-A (KR)
Title: QOS Support Method in ATM MPLS VPN Backbone Network
Inventor: KANG MIN SU
IPC: H04L12/28
Filed: 2001-12-29
Abstract: PURPOSE: A method for supporting a QoS(Quality of Service) of an ATM(Asynchronous Transfer Mode) MPLS(Multi Protocol label Switching) VPN(Virtual Private Network) backbone network is provided to offer a differentiated QoS to subscribers who belong to the same VPN group. CONSTITUTION: A PE(Provider Edge) router sets an LSP connection and transfers LSP(Label Switched Path) information to a VPN controller(S30,S32). The VPN controller constructs a static input information table by mapping interfaces of subscribers directly connected to the opposite PE router and the LSP information(S34). PE routers receive routing information of a subscriber network directly connected to themselves, searches the LSP connection information from the static input information table by using information included in the routing information, produces transmission information and transfers it to a transmission processor(S36,S38). The transmission processor manages a transmission information table on the basis of the received transmission information(S40). When a packet is inputted to an ingress PE router, the ingress PE router recognizes an RD(Route Distinguisher) on the basis of a packet-received interface, and searches LSP information to be used for passing a backbone network and a VPN label for going out from an egress PE router to a destination CE(Customer Edge) router(S42,S44). A packet inputted to the ingress PE router is transferred to the egress PE router through a pertinent QoS-applied LSP on the basis of the LSP information and the VPN label(S46).
Patent KR-20030059375-A (KR)
Title: Method for fabricating semiconductor device
Inventor: PARK CHEOL SU
IPC: H01L21/336
Filed: 2001-12-29
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to be capable of improving integration degree by forming a vertical cylindrical transistor in a cylindrical epitaxial layer. CONSTITUTION: After sequentially forming an insulating layer(20) and a nitride layer on a substrate(10), the first contact hole(45) is formed by selectively etching the nitride layer and the insulating layer. A silicon layer(50) is filled into the first contact hole. A trench is formed by selectively removing the silicon layer(50). After removing the nitride layer, a source(60a) is formed in the substrate and a drain(60b) is formed in the silicon layer. A gate oxide layer(70) and a gate(80) are sequentially formed at sides of the silicon layer. A planarized layer(90) is entirely filled into the trench. The second contact hole is formed to expose the gate, the drain and the source. A gate, drain and source plug(100a,100b,100c) are formed in the second contact hole, respectively.
Patent KR-20030058775-A (KR)
Title: Apparatus preventing reverse rotation for vacuum circuit breaker
Inventor: EOM MAN YONG
IPC: H01H33/66
Filed: 2001-12-31
Abstract: PURPOSE: A reverse rotation prevention device is provided to achieve improved safety and reliability by preventing the input delay caused due to the reverse rotation of the driving cam. CONSTITUTION: A reverse rotation prevention device comprises a reverse rotation prevention unit for preventing a reverse rotation of a driving cam and which is installed at a side of a base plate(B) on which a driving cam is rotatably coupled. The reverse rotation prevention unit includes a contact surface(101) formed at the front end of a shaft(13) where the rear end of the driving cam is fixed; a bracket(111) arranged on a support plate(110) fixed to the base plate; a stopper(120) coupled to be rotatable through a shaft and elastically supported by a spring(130) in such a manner that the stopper is compressed on the contact surface of the shaft where the rear end of the driving cam is fixed.
Patent KR-20010053553-A (KR)
Title: 디지털 비디오 장치 사용자 인터페이스
IPC: G11B20/10
Filed: 1999-07-02
Abstract: 디지털 비디오 디스크(21)와 같은 저장 매체 상에 저장된 정보를 처리하기 위한 방법 및 장치는 상기 저장 매체 상에 저장된 정보에 액세스하는 단계와 상기 저장 매체 상에 저장된 정보가 등급화되지 않은(unrated) 프로그램 정보를 포함하고 있는지의 여부를 결정하는 단계를 포함한다. 만약 등급화되지 않은 프로그램 정보를 포함하고 있다면, 사용자 제어 장치(41)에게는 등급화되지 않은 프로그램 정보에 대한 플레이백을 차단하는 시스템의 제어 조건을 오버라이딩(overriding)할 기회가 주어진다. 만약 오버라이드가 선택되면, 상기 등급화되지 않은 프로그램 정보에 대한 플레이백이 인에이블되고, 플레이백(playback)을 완료하자마자, 상기 시스템의 제어 조건은 다른 등급화되지 않은 프로그램 정보에 대한 플레이백을 차단하도록 복구될 수 있다. 오버라이드는 먼저 사용자가 패스워드를 입력하도록 조정될 수 도 있다. 등급화되지 않은 프로그램 정보에 대한 플레이백 동작 모드를 차단하기 위한 상기 제어 조건을 오버라이딩하게 하는 동작 모드가 선택적으로 인에이블될 수 도 있다.
Patent KR-20010071001-A (KR)
Title: 직사각형의 광 빔 어레이를 제공하는 방법 및 장치
IPC: G03F7/20
Filed: 2000-05-19
Abstract: 동일한 강도의 광 빔들의 선형적 어레이는 각 빔의 강도는 거의 일정하게 유지하면서, 동일한 강도의 광 빔들의 직각 어레이로 변형된다.  상기 변형은 앞면상에 두개의 코팅들 및 맞은편 후면상에 반사 코팅을 갖는 광학 소자를 사용하여 수행된다.  앞면은 부분적으로 반사 코팅으로 코팅되며 부분적으로 반사 방지 코팅으로 코팅된다.  빔들은 앞면상에 두개의 다른 코팅들의 각각상에 입사하는 일부 빔들을 가지고 앞면상에 입사한다.  앞면상에 입사한 빔들은 거울처럼 반사된다.  나머지 빔들은 광학 소자를 통해 후면에 투과되고, 후면으로부터 반사되며, 광학 소자를 통해 재투과되고 앞면으로부터 탈출한다.  탈출 빔들은 원하는 직각 어레이를 정하기 위해 따라서 측면 및 횡단으로 시프팅된다.  굴절률, 광학 소자의 두께 및 빔들의 입사 각은 원하는 빔들의 배열을 달성하기 위해 선택된다.
Patent KR-20010085872-A (KR)
IPC: B60W20/00
Filed: 1999-09-23
Abstract: 본 발명은 특히 자동차용으로서, 적어도 2개의 샤프트; 다수개의 투스드 휠 쌍; 커플링에 의해 회전 불가능하게 제 1 샤프트에 연결될 수 있는, 아이들 휠과 같은 투스드 휠; 하나의 샤프트와 회전 불가능하게 배치된 기어휠과 같은 투스드 휠로 구성된 트랜스미션에 관한 것이다.  투스드 휠 변속 트랜스미션과 같은 상기 트랜스미션은 적어도 2개의 샤프트와 하나의 전동기로 이루어져 있으며, 상기 전동기는 또한 내연기관을 시동하기 위해 이용될 수 있다.  또한 트랜스미션은 샤프트들 중 적어도 하나의 샤프트의 적어도 하나의 커플링을 이용하여 맞물려질 수 있다.  결과적으로 트랜스미션은 동력이 전달될 수 있으며, 그리고 드라이브 트레인(drive train; 동력전달장치) 내에서 최소의 축방향 공간을 차지하게 된다.
Patent KR-20010085945-A (KR)
IPC: G06K13/08
Filed: 2000-08-18
Abstract: 판상을 이루는 메모리를 기억매체에 이용하는 기록 및/또는 재생장치이고, 이 장치는 판상을 이루는 메모리가 장착 및 분리가 가능하게 장착되는 장치본체를 갖추고, 장치본체의 중앙부에서 일단측의 위치에 이 장치의 조작모드를 선택하는 선택조작부를 갖추고, 장치본체의 중앙부에서 타단측의 위치에 장치본체에 장착된 메모리를 이젝트하는 이젝트조작부를 설치함으로써 조작모드의 선택과 메모리의 이젝트조작의 오조작을 방지한다.    조작모드를 선택하는 선택조작부는 장치본체에 출몰하는 방향으로 이동조작되는 동시에 장치본체에 대하여 회동조작가능하고, 이젝트조작부는 장치본체의 일면에 평행으로 이동된다.    이젝트조작부는 메모리의 장치본체로의 삽입방향으로 이동조작되어서 메모리를 장치본체에서 이젝트한다.
Patent KR-20010089362-A (KR)
IPC: G06K19/077
Filed: 2000-08-14
Abstract: 집적 전자 소자(3)와 전송 코일(12)을 구비한 소정의 데이터 캐리어에서 전송 코일(12)의 짧은 턴 부분(21,22,23,24,25)은 집적 전자 소자(3)의 소자 표면(4) 영역에서 집적 전자 소자 상에 제공되며 도전체 트랙에 의해 바람직하게 형성되는    접속선들에 의해서 형성된다.
Patent KR-20020011362-A (KR)
IPC: G01N9/24
Filed: 1999-09-29
Abstract: 광도파관을 제조하는데 사용되는 수트 모재의 적어도 일부를 구성하는 수트내의 도판트 농도를 결정하기 위한 장치는 중량 측정장치, 두께변수 측정장치, 방사선원, 방사선 센서 및 결정장치를 포함한다. 상기 중량 측정장치는 수트 모재의 중량을 측정한다. 상기 두께변수 측정장치는 수트 모재의 두께변수를 측정한다. 상기 방사선원은 투사광선으로 수트를 조사한다. 상기 방사선 센서는 수트를 통과하는 투사광선의 강도를 검출한다. 상기 결정장치는 검출된 투사광선의 강도와 측정된 중량 및 두께변수에 기초하여 수트내의 도판트 농도를 결정한다.
Patent KR-20010092452-A (KR)
Title: Methods of reducing the astringency of stannous in dentifrice compositions
IPC: A61K8/36
Filed: 1999-11-23
Abstract: Disclosed are methods for reducing the astringency of dentifrice composition containing stannous comprising administering to the subject a dentifrice composition comprising stannous. The dentifrice composition comprises stannous ions, poloxamer, and aqueous carriers. The efficacy of this dentifrice composition containing stannous will not be reduced by the poloxamer. The dentifrice composition may also contain a polyphosphate as long as the water content is limited and the stannous ion is not provided from stannous fluoride. The polyphosphate will also not reduce the efficacy of the stannous. Alternatively, the dentifrice composition may be a dual phase composition. The first dentifrice composition will contain a polyphosphate having an average chain length of about 4 or more and have a limited water content while the second dentifrice composition will contain stannous ions. In the dual phase composition, the poloxamer will be present in the first or second dentifrice compositions or both compositions. Neither the polyphosphate or the poloxamer will reduce the efficacy of the stannous.
Patent KR-20010093795-A (KR)
Title: 구멍이 있는 개방 체적을 가지는 음향 공명기
IPC: G10K11/04
Filed: 1999-07-22
Abstract: 악기 또는 음향 재생 장치에 의한 소리의 생성은 완벽하지 않고 음향 불협화음은 협화음으로 이행될 수 있다.  본 발명은 컷을 구비한 유리(1), 적어도 하나의 오리피스를 생성하는 열극(2)과 같은 개방 체적을 사용하는 방법에 관련된다.  음향 재생기에 또는 재생기와 인접하여 배치된 물체는 공명기 체적 및 열극으로부터 발생하는 기계적 커플링 또는 공중 음향 링크 장치에 의해 음향 재생기에 맞는 추가 음파를 방출한다.  본 발명은 피아노(7)에 레그(3)를 고정시킴으로써 기계 음향 진동을 전달할 수 있는 60 이상의 쇼어 경도를 가지는 물질로 만들어진 장치에 관련된다.  본원에 따른 방법과 장치는 음향 재생 및 발생 분야를 개선시키는 것에 관한 것이다.
Patent KR-20010093832-A (KR)
Title: Process for the preparation of an aqueous dispersion of an anionic polyurethane free of volatile tertiary amines
IPC: C08G18/10
Filed: 2000-10-16
Abstract: The present invention relates to a process for the preparation of an aqueous dispersion of an anionic polyurethane. According to the invention, a tertiary amine functional urethane polymer or oligomer acts as acid neutralizing agent. The process of the invention comprises the steps of: dispersion of an anionic isocyanate functional polyurethane prepolymer in water in the presence of a tertiary amine functional urethane polymer or oligomer and chain extension of the anionic polyurethane prepolymer with a reactive hydrogen functional material during or after the dispersion in water.
Patent KR-20010108021-A (KR)
IPC: C12P19/04
Filed: 1999-12-15
Abstract: 본 발명은 단백질과 전분의 추출성과 회수율을 증진시키기 위해 티오레독신 및/또는 티오레독신 리덕타제를 이용하는, 곡물, 특히 옥수수와 대두의 처리방법을 제공한다.  또한, 본 발명은 열 안정성 티오레독신 및/또는 티오레독신 리덕타제를 발현시키는 신규한 형질전환 식물을 제공한다.
Patent KR-20010105334-A (KR)
Title: Device for carrying preforms comprising improved gripping means
IPC: B29C49/64
Filed: 2000-02-14
Abstract: A device for carrying a preform in a temperature condition oven, including a gripping device provided with gripping claws, which enclose an outer surface of the neck of the preform. An inner core is provided that penetrates axially inside the neck over a distance substantially equal to the axial length of the neck, such that it presents a lower transverse surface. When the preform is in place on the gripping device, it is substantially axially placed at the boundary between the neck and the body of the preform.
Patent KR-20010108263-A (KR)
Title: 선박의 방오 방법 및 선박 방오용 조성물
Filed: 1999-02-26
Abstract: 본 발명은 가수분해 효소(들), 미생물(들) 또는 가수분해 효소(들)와 미생물(들)의 혼합물을 포함하는 선박 방오용 조성물 및/또는 도료에 관한 것이며, 이때 이러한 미생물 또는 가수분해 효소는 상기 선박 방오용 조성물 및/또는 도료에 의해 피복된 표면의 오손을 감소시킨다.  이러한 조성물 및/또는 도료는 촉매 효과량의 무기 염을 포함할 수 있다.  또한, 본 발명은 상기 조성물 및/또는 도료에 의해 피복된 제품에 관한 것이다.  최종적으로, 본 발명은 선박 표면의 오손을 감소시키고, 선박의 부식을 감소시키며, 선박 표면에 의한 물의 흡수를 제한하고, 선박 표면의 항력계수를 감소시키며, 선박 표면으로부터 해양 생장물을 제거하고, 선박 표면의 곰팡이 진균류를 감소시키는 방법에 관한 것이다.
Patent KR-20020013846-A (KR)
Title: Apparatus and method for ultrasonically cleaning irradiated nuclear fuel assemblies
IPC: G21C17/06
Filed: 2000-04-07
Abstract: An apparatus for cleaning an irradiated nuclear fuel assembly includes a housing adapted to engage a nuclear fuel assembly. A set of ultrasonic transducers is positioned on the housing to supply radially emanating omnidirectional ultrasonic energy to remove deposits from the nuclear fuel assembly.
Patent KR-20020009629-A (KR)
IPC: G11B5/84
Filed: 1999-06-14
Abstract: 자기 데이터가 기록되는 자성층의 재료로서 Cr이 첨가되지 않은 자성 재료를 사용함으로써, 이방성 자계가 높은 값을 확보한다.  기판(2) 상에 Cr계의 비자성 재료로 이루어진 하지층(3)을 적층시키고, 이 하지층 상에 Cr과는 상이한 적어도 일종의 비자성 재료와 Co와의 합금으로 이루어진 자성층(4)을 적층시키는 공정을 거쳐 자기 기록 매체(1)를 제조한다.
Patent KR-20020026456-A (KR)
IPC: C12N15/80
Filed: 2001-04-13
Abstract: 본 발명은 사상균에서 외인성 DNA 라이브러리를 발현하는 방법을 제공한다. 진균은 인트론-함유 진핵생물 유전자를 포함할 수 있고, 또한 글리코실화 및 단백질 폴딩과 같은 번역 후 프로세싱 단계를 수행할 수 있다. 본 발명은 고산출량 스크리닝 및 발현된 단백질의 특정 분자의 진화를 허용하는 변형된 형태를 가지는 진균의 사용을 제공한다. 같은 형질전환된 진균은 분리, 특성화, 및 이용분야 검정을 위하여 단백질의 더 많은 양을 생산하는 데 사용될 수 있고, 또한 단백질의 상업적 생산에 적합할 수 있다.
Patent KR-20030058847-A (KR)
Title: Scales for Weighing a Fowl
Inventor: HAN SEONG U
IPC: G01G17/08
Filed: 2002-01-02
Abstract: PURPOSE: A scale is provided to easily and exactly measure the weight of a chicken by forming a funnel-shaped storing container to store the chicken. CONSTITUTION: The upper face of a funnel-shaped storing container(20) is opened to closely input a chicken upside down. The storing container is installed in a main body(10). A control unit detects the weight value of the chicken inside the storing container through a weight sensor. The control unit displays the detected weight value through a display unit(60). Thereby, the movement of the chicken is restricted. Therefore, the weight of the chicken is measured easily and exactly and the reliability to decide the growth of the chicken is improved.
Patent KR-20030061155-A (KR)
Title: Method of receiving selected mail at internet mail device
Inventor: HAN SANG YONG
IPC: G06F13/00
Filed: 2002-01-11
Abstract: PURPOSE: A method for receiving a selected E-mail of an Internet mail device is provided to enable a user to receive or delete a mail selectively in an Internet mail device. CONSTITUTION: A user sets a connection time interval for periodically connecting an Internet mail device to an incoming mail server(201). The Internet mail device waits a connection time(203). If the current time is a connection time(205), the Internet mail device connects to the incoming mail server(207). The incoming mail server transmits a reply to the Internet mail device through a POP3 authentication(209). If the Internet mail device transmits a LIST command to the incoming mail server, the incoming mail server transmits sizes of each received mail to the Internet mail device according to the size by responding to the LIST command(211). If the Internet mail device transmits a TOP command to the incoming mail server(213), the incoming mail server extracts mail header information of each mail by responding to the TOP command, and outputs the mail header information to the Internet mail device(215). The Internet mail device classifies and stores the mail header information(217). If the user wants to display the mail header information of the mail(219), the Internet mail device displays the mail header information of each mail stored in a memory through a display device(221). If the user selects a wanted mail(223), the Internet mail device transmits an RETR command to the incoming mail server. The incoming mail server transmits the selected mail to the Internet mail device by responding to the RETR command(225). Thus, the Internet mail device receives a mail corresponded to the RETR command(227). If the Internet mail device transmits a QUIT command to the incoming mail server, the incoming mail server releases a connection of the Internet mail device by responding to the QUIT command(239).
Patent KR-20020021801-A (KR)
Inventor: NISHIHIRA TAKASHI
IPC: A61F9/00
Filed: 2002-01-30
Abstract: PURPOSE: An eyesight recording apparatus using a three-dimensional image and a method of displaying a three-dimensional image are provided to activate various muscles of eyes and recover eyesight easily and inexpensively. CONSTITUTION: An image for the left eye and an image for the right eye are alternately displayed on a screen(50) of a visual display terminal(2) and, simultaneously, an observer wears glasses(4) and sees the images, to generate a three-dimensional image(10a). The three-dimensional image is displayed near the glasses, and then moved away from the glasses. A distant three-dimensional image comes close to the glasses in the opposite direction by a movement controller. The observer wears the glasses and focuses his glasses on the three-dimensional images all the time so as to recover his eyesight.
Patent KR-20030065099-A (KR)
Title: Performance improver and it's manufacturing process treating surface for reinforcement concrete structures attacked by chloride penetration and carbonation
Inventor: KIM DO GYEOM
IPC: C04B28/26
Filed: 2002-01-31
Abstract: PURPOSE: A composition of performance-improving agent for surface treatment of deteriorated steel-concrete structure is provided to fix chloride ions in the concrete structure, protect the corrosion of steel and improve pH of deteriorated concrete by coating concrete structure with a surface treatment agent several times. CONSTITUTION: The surface treatment agent comprises the components of; 15-70wt.% of sodium silicate such as Na2O3SiO2 or Na2O4SiO2; 0.05-5.0wt.% of biochemical material as a catalyst, such as sodium alginate(C6H7NaO6) or casein to improve durability and waterproofness; 25-84.05wt.% of distilled water; and optionally less than 3.0wt.% of surfactant such as C5H8SO2LiF(C2F4)3-8 or (C2H4O)nHF(C2F4)3-8, to lower viscosity of the mixture, less than 7.0wt.% of steel corrosion inhibitor such as triethanol amine, and alkali such as NaOH or Ca(OH)2 to maintain the pH of the mixture between 13-14. The surface treatment agent is prepared by mixing the above materials, heating to 70-100deg.C for 1-2hrs, and applying 5-50drops of acetic acid in a rate of one drop per 1-5hrs for homogeneous mixing.
Patent KR-20020035496-A (KR)
Inventor: LEE YOUN HYOUNG
IPC: G09F21/04
Filed: 2002-02-04
Abstract: PURPOSE: Advertisement method by inserting a three sides advertisement panel into a vehicular brake light is provided to achieve three kinds of advertisement by using only one car. CONSTITUTION: The advertisement method utilizes a brake light(1) of a car and a three sides advertisement panel(3) inserted into the inside of the brake light. A rotating shaft(2) of the three sides advertisement panel is connected to electric wires inside the brake light to display three advertisements thereon whenever a driver presses on a brake device. In addition, the brightness of the three sides advertisement panel can be adjusted.
Patent KR-20030067372-A (KR)
Title: System for comprehending underground equipment using digital line marker
Inventor: JUNG YOON BOK
IPC: G01C15/02
Filed: 2002-02-08
Abstract: PURPOSE: A buried material inspecting system is provided to precisely insect and check information with respect to buried material by attaching recording medium storing information about buried material to a line marker. CONSTITUTION: A buried material inspecting system includes a digital line marker(110) having a recording medium(113) attached thereto. The recording medium(113) stores information about buried material in the form of an RFID code. A detecting device(120) is provided to detect the RFID code stored in the recording medium(113) of the digital line marker(110). An inspecting device(130) is provided to inspect buried material and to display information of buried material by analyzing the RFID code detected by the detecting device(120).
Patent KR-20030068006-A (KR)
Title: Transferring apparatus in vertical handler
Inventor: CHOI GI YEONG
IPC: H01L21/66
Filed: 2002-02-09
Abstract: PURPOSE: An apparatus for transferring a semiconductor device in a vertical handler is provided to transfer stably the semiconductor device by picking up the semiconductor device at a center of gravity of the semiconductor device. CONSTITUTION: An apparatus for transferring a semiconductor device in a vertical handler includes the first and the second absorption members(310,315), a transfer support plate(320), an upper and lower pickup portion(325), and a position control portion(330). The first and the second absorption members are used for absorbing the semiconductor device. The first and the second absorption members are formed at lower sides of both end portions of the transfer support plate. The upper and lower pickup portion transfers the transfer support plate to an upper portion or a lower portion. The position control portion is used for combining the transfer support plate with the upper and lower pickup portion.
Patent KR-20030068617-A (KR)
Title: Wax-encapsulated polyester toner composition and method of producing the same
Inventor: KIM CHEOL HWAN
IPC: G03G9/093
Filed: 2002-02-15
Abstract: PURPOSE: A toner composition comprising the polyester particle encapsulating wax for the development of electrostatic latent image and its preparation method are provided, to prepare an oil-free toner composition having an excellent fluidity without the polymerization process. CONSTITUTION: The toner composition comprises a coloring agent; 70-98 wt% of a polyester resin; a charge control agent; 0.01-30 wt% of a wax, wherein the wax is encapsulated in the polyester resin particle. Preferably the wax is selected from the group consisting of ester wax, carbauna wax, polyethylene wax, polypropylene wax and bees wax; and the polyester resin is an amorphous resin, has an average number molecular weight of 2,000-10,000, and optionally contains a functional group capable of reacting with a functional coloring agent. The composition has a volume average particle size of 2-10 micrometers and is spherical shaped.
Patent KR-20030073026-A (KR)
Title: Method for producing feedstocks of high quality and heavy lube base oil from unconverted oil of fuels hydrocracker
Inventor: KIM CHANG GUK
IPC: C10G65/12
Filed: 2002-03-08
Abstract: PURPOSE: Provided is a method for producing a raw material for supplying a high or middle quality lube base oil having a low volatility and a high viscosity by using a un-converted oil in hydrocracking of a fuel oil. CONSTITUTION: The method includes the steps of distilling an atmospheric residue oil in the first vacuum distillation(V1) to separate a vacuum gas oil and a vacuum residue oil separating; supplying the vacuum gas oil to the hydrogenation(R3); supplying the vacuum residue oil to solvent deasphalting apparatus to remove asphalt and impurities; supplying the asphalt free oil to the hydrogenation(R3); removing impurities from the vacuum gas oil and asphalt free oil; subjecting them to hydrogenation and hydrocracking reaction to obtain high or middle quality hydrocarbons; subjecting the hydrocarbons to fraction distillation to separate oil products and unconverted oils; supplying the unconverted oils to the second vacuum distillation(V2) to obtain a raw material for supplying high or middle quality lube base oils with a predetermined viscosity and unconverted oils; and recycling the unconverted oils from the second vacuum distillation to the hydrogenation(R3).