baber/WOPTO huggingface dataset:
Patent KR-20020062930-A (KR)
Title: Methods and compositions utilizing quinazolinones
IPC: A61P37/02
Filed: 2000-10-26
Abstract: Quinazolinones of formulae (1a), (1b), (1c) and (1d) are disclosed. They are useful for treating cellular proliferative diseases and disorders associated with KSP kinesin activity.
Patent KR-20020060993-A (KR)
IPC: C07F9/00
Filed: 2000-12-04
Abstract: 본 발명은, (i) (3-아미노-2-하이드록시프로필)메틸포스핀산의 라세미체, (ii) (S)-(3-아미노-2-하이드록시프로필)메틸포스핀산, (iii) (R)-(3-아미노-2-하이드록시프로필)메틸포스핀산, (iv) (3-아미노-2-하이드록시프로필)디플루오로메틸포스핀산 및 (v) (3-아미노-2-옥소프로필)메틸포스핀산은 제외한, 하나 이상의 GABA B 수용체와 결합할 수 있는 화학식 I의 신규 화합물, 그의 약학적으로 허용되는 염, 용매화물 및 입체이성질체에 관한 것일 뿐만 아니라, 상기 화합물의 제조방법, 상기 치료활성 화합물을 함유하는 약학조성물, 및 상기 치료활성 화합물의 치료용도에 관한 것이다. 
     <화학식 I>
Patent KR-20020065910-A (KR)
IPC: E04C1/39
Filed: 2000-10-19
Abstract: 본 발명은 강고하게 일체화시킬 수 있으며, 내구성이 높은 유닛식 토목 구조체에 관한 것이다. 
     인접하는 블럭형상 유닛(B1, B1)에 있어서의, 한쪽의 블럭형상 유닛(B1)에 볼록부(P1, …)가 형성되며, 다른쪽의 블럭형상 유닛(B1)에 오목부(H1, …)가 형성되어 있으며, 볼록부(P1)를 오목부(H1)내에 끼워맞추면서, 블럭형상 유닛(B1, …)을 쌓아올려서 토목 구조체(ST1)를 구축한다.
Patent KR-20020071961-A (KR)
Title: Drive mechanism for a screw pump
IPC: F04C25/02
Filed: 2001-01-12
Abstract: The invention concerns a screw pump (10) that is configured as a dual-shaft positive displacement motor and that comprises two positive displacement spindle rotors (1 and 2) rotating in opposite directions and having external toothing. In order to provide a quiet and simple drive mechanism for said rotors (1 and 2) while ensuring synchronization and increased rotational speed, contrate gear-like gearwheels (3 and 4) are mounted on both rotors (1 and 2) rotating in opposite directions or the rotor spindles in a corresponding plane, in which a larger contrate gear-like driving toothed wheel (5) engages in such a way that both spindle rotors (1 and 2) are driven in opposite directions at an increased rotational speed, wherein said contrate gear similarity also includes a crown gear with internal and external toothing working in connection with front toothed wheels or bevel gears and the possibility that only the driving toothed wheel (5) or only the driven gearwheels (3 and 4) are contrate gear-like.
Patent KR-20020083153-A (KR)
Title: 전지 팩의 충전 시스템
IPC: H01M10/44
Filed: 2001-11-26
Abstract: 충전에 수반하는 발열에 의한 전지의 성능 저하를 방지하면서 전지를 완전 충전 내지 완전 충전에 가까운 상태로 충전 가능하게 할 수 있는 충전 시스템을 제공하는 것을 목적으로 한다.  전지 팩의 충전 시스템(1)은 전지온도를 검출하는 온도 검출수단(15), 충전수단(12), 충전수단(12)을 전지온도에 기초하여 제어하는 제어수단(13)을 구비하며, 제어수단은(13)은 「온도에 의존하는 양」(ΔT/Δt)을 목표 값(Y)으로 하는 온도 피드백 충전을 행한다.  이렇게 함으로써 충전에 수반하는 발열에 의한 전지의 성능 저하를 방지하면서 전지를 완전 충전 내지 완전 충전에 가까운 상태로 충전 가능하게 할 수 있다.
Patent KR-20020071029-A (KR)
Title: Ｐｄｅ４ 이소자임 억제제로 유용한 피리미딘카르복스아미드
IPC: A61P13/02
Filed: 2001-01-30
Abstract: 화학식 (1.0.0)의 화합물, 및 염증성, 호흡기 및 알레르기 질환 및 질병, 특히 천식, 만성 기관지염, 기종 및 기관지확장증을 포함하는 만성 폐쇄성 폐질환 (COPD), 만성 비염, 및 만성 부비동염을 치료하기 위한 제약 조성물의 용도를 설명한다.
Patent KR-20020087410-A (KR)
IPC: B01L3/02
Filed: 2001-02-28
Abstract: A blowout springless manual air displacement pipette including a mechanical assist for generating a mechanical force opposing a return spring force on a plunger unit to aid a pipette user in locating and maintaining the plunger unit at a "home" position within a pipette body and ready for immersion of a pipette tip in a liquid to be drawn into the tip.
Patent KR-20020093877-A (KR)
Title: 소형 박판유리의 제조를 위한 반제품으로서 비교적 넓은박판유리 및 상기 소형 박판유리들의 제조방법
IPC: B23K26/00
Filed: 2001-03-24
Abstract: 소정의 기하학적 구조를 갖는 소형 박판유리(2)의 제조는 통상적으로 비교적 넓은 박판유리(1)로부터 절단하므로 써 이루어진다. 그 다음 상기 절단된 소형 박판유리(2)들은 예를 들어 "전자부품 패키징"을 위하여 접합재료, 특히 땜 유리로 이루어진 땜 테두리(3)와 함께 다른 부품과 결합된다. 상기 소형 박판유리(2)들의 제조 및 접합할 때 처리공정을 개선하기 위하여, 본 발명은 스크린 인쇄 또는 스텐실 인쇄공정을 이용하여, 바람직하게는 절단기준선을 따라 양쪽 면에 패턴을 형성한 비교적 넓은 하나의 박판유리(1)를 제작한 다음, 이어서 상기 넓은 박판유리(1)를 간단한 절단방법으로, 바람직하게는 기계적 절단방법으로 작게 구조화된 소형 박판유리(2)들로 낱개로 분리할 수 있도록 되어있다. 또한 상기 넓은 박판유리(1)가 지지재료 위에 부착되어 있을 경우에는 연삭절단에 의한 분리가 가능하다.
Patent KR-20030010708-A (KR)
Inventor: YASUHIRO NAWATA
IPC: A61F13/15
Filed: 2002-04-12
Abstract: A water-absorbing resin which has a specific surface area, as measured by the BET multipoint adsorption method employing krypton as an adsorbate gas, of 0.05 m2/g or larger and a water retentivity, as measured with 0.9 wt.% physiological saline, of 5 to 30 g/g. It is suitable for absorbing viscous liquids containing a high-molecular compound.
Patent KR-20030010719-A (KR)
Title: Interface for machine operation
IPC: G06F3/0488
Filed: 2001-04-12
Abstract: Apparatus and method for controlling a molding machine includes structure and function for a human machine interface control panel having: (i) a flat panel display screen; (ii) a pointing device; (iii) a plurality of pushbuttons overlaid with or without icons; (iv) a housing containing the above and the associated electronics; (v) structure to uniquely identify each users preferred configuration; (vi) structure to connect to a remote controller for both digital information and video signal communication; (vii) a connection for receiving external power to drive the panel's electronics and display; and (viii) software running in the remote controller to provide all the operating functions of the human machine interface.
Patent KR-20040063207-A (KR)
Inventor: YOO GYEONG HO
IPC: G09G5/39
Filed: 2003-01-06
Abstract: PURPOSE: A memory management apparatus in an image reproduction system for preventing image tearing and a method therefor are provided to manage a plurality of memories necessary for a scaler to prevent the image tearing. CONSTITUTION: A scaler(200) converts a format of inputted image data into a format suitable for resolution to be displayed. The first memory(210) stores the data converted by the scaler(200). The second memory(220) stores the data of the scaler(200) for preventing that addresses of the data stored in the first memory(210) are met and inverted in the same time by writing and reading speed difference.
Patent KR-20040065651-A (KR)
Inventor: OH YEONG JIN
IPC: H05B6/68
Filed: 2003-01-15
Abstract: PURPOSE: An apparatus and a method for monitoring system error of microwave oven are provided to let user know the system error through an error message by detecting a system current which is decreased due to the system error. CONSTITUTION: An apparatus for monitoring system error of microwave oven comprises a detection unit(10), a converter(11), a micom(20), and a display unit(30). The detection unit is connected to the power line, detects AC currents input to the system and outputs AC voltage level corresponding to the AC currents. The converter converts the AC voltage level to DC voltage level and outputs it. The micom determines the system error according to the DC voltage level and outputs a control signal. The display unit displays an error message according to the control signal.
Patent KR-20040065659-A (KR)
Inventor: KIM HUI JIN
IPC: G01N17/00
Filed: 2003-01-15
Abstract: PURPOSE: A device for testing multi-point bending sulfide stress corrosion cracking is provided to observe the breakage of a test piece without opening a chamber and to safely perform a test by preventing the leakage of hydrogen sulfide. CONSTITUTION: A manifold(31) has many couplers. A test bath(33) is installed via a clamp. One of many couplers is connected to a hydrogen sulfide supply source(11) and a nitrogen gas supply source(12) to store compressed gas in the test bath. A jig block(61) supporting a test piece is loaded on the manifold. A connecting and fixing part including the manifold and the couplers is directly connected to a body.
Patent KR-20030065327-A (KR)
Inventor: LEE JONG MOON
IPC: H01Q5/342
Filed: 2003-01-16
Abstract: PURPOSE: A dual band antenna and a method for controlling a resonant frequency of the dual band antenna are provided to improve the accuracy of frequency control by controlling the length of a feeding unit for generating a static induction capacitance. CONSTITUTION: An exterior of an antenna is formed by a sleeve and an insulator is formed on an end of the sleeve. A connector is formed on the other end of the sleeve and a connecting terminal(15) makes a contact point with the connector and is extended to an external side of the antenna to be connected to a communication equipment circuit. A conductive feeding unit(121) is fixed on a central part of the insulator and extended to a lower side and the extended length thereof is controlled. A helical is formed on an external side of the conductive feeding unit(121). A dielectric(16) is formed between the insulator and the connector toward the external side of the conductive feeding unit(121) and generates a capacitance component between the feeding unit(121) and the helical.
Patent KR-20040067019-A (KR)
Inventor: KIM UN YONG
IPC: H01L21/336
Filed: 2003-01-21
Abstract: PURPOSE: A method for forming a salicide layer of a semiconductor device is provided to reduce the number of fabrication processes by forming selectively and simultaneously a non-salicide region and a salicide region within one chip. CONSTITUTION: The first gate oxide layer(33a) and the second gate oxide layer are formed on a non-salicide region and a salicide region of a silicon substrate(31), respectively. A conductive layer and a hard mask layer are formed on the entire surface of the silicon substrate. A gate electrode is formed on the non-salicide region and the salicide region by removing the conductive layer, the hard mask layer, the first gate oxide layer, and the second gate oxide layer. An active region of the salicide region is exposed. An oxide layer(41) is formed on the entire surface of the silicon substrate except for the hard mask layer. A spacer is formed on a lateral part of the gate electrode and the active region of the salicide region is exposed simultaneously. The residual hard mask layer is removed from the upper surface of the gate electrode of the non-salicide region and the salicide region. A salicide layer(45) is formed on a surface of the non-salicide layer, a surface of the gate electrode of the salicide region, and a surface of the active region of the salicide region.
Patent KR-20040074414-A (KR)
Inventor: KIM JIN SEONG
IPC: G09G3/28
Filed: 2003-02-18
Abstract: PURPOSE: A method and an apparatus for driving a panel for implementing a gray scale are provided to improve stability of a sustain discharge by minimizing a timing gap between an address period and a sustain period. CONSTITUTION: An analog image signal to be displayed on a panel(97) is converted into a digital data to be stored on a frame memory(91). A sub-field processing unit(92) divides and outputs the digital data in a sub-field unit. A pulse synthesizing unit(94) comprises a reset signal generator(942), a write pulse generator(943), and a sustain pulse generator(944) which generate signals to be supplied to electrodes during a reset period, an address period, and a sustain period, in order to drive the electrodes. The reset signal generator generates a reset signal for initializing a status of each cell. The write pulse generator generates an address signal for addressing one of the cells. The sustain pulse generator generates a sustain signal for discharging the addressed cell according to the address signal. A signal generated from the pulse synthesizing unit is supplied to a scan electrode driving unit(96) and a sustain electrode driving unit(95) of the panel depending on a predetermined timing. The scan electrode driving unit(96) comprises a plurality of driving circuits(961,962,...,968) for driving scan electrodes. The sustain electrode driving unit(95) drives a sustain electrode of the panel. A timing controller(93) generates timing signals required for operations of the sub-field processing unit and the pulse synthesizing unit.
Patent KR-20040077816-A (KR)
Inventor: KIM DAL GYU
Filed: 2003-02-24
Abstract: PURPOSE: A method and a system for an online electronic document receipt acknowledgement service having legal force are provided to legally prove an e-mail receipt fact by offering a sender with an electronic document receipt acknowledgement proving that a receiver views the e-mail or an electronic document. CONSTITUTION: A post office server includes a transmission processing module, a reception processing module, and a delivery processing module. The delivery processing module comprises a data processor(350), a data transmitter(360), and a data storage(370). The data processor comprises a licensed certificate issuer(351), a licensed certification center public key controller(352), a licensed acknowledgement response processor(353), a reception confirmation request editing/controlling part(358), a document enveloper(356), a document extractor(355), and a licensed acknowledgement integrity confirming part(357). The data storage comprises a licensed certification center public key storage(371), a licensed certificate storage(372), a private signature key storage(373), a document storage(374), and a licensed acknowledgement storage(375).
Patent KR-20030070551-A (KR)
Title: 불포화 말단기를 가진 고도 분기된 폴리에스테르의 제조방법
IPC: C08G63/00
Filed: 2003-02-24
Abstract: 본 발명은 소정 비율로 다작용성 소르브산 에스테르와 아크릴레이트를 Diels-Alder 반응시켜, 불포화의 아크릴레이트 또는 소르베이트 말단기 중 하나를 가진 고도로 분기된 폴리에스테르를 바로 제조하는 1단계 중합 공정에 관한 것이다.  본 발명의 바람직한 실시예는 수상 에멀젼에서 Diels-Alder 중합하는 방법이다.
Patent KR-20040077022-A (KR)
Inventor: BAE JIN HYEON
IPC: G06F17/00
Filed: 2003-02-27
Abstract: PURPOSE: A system and a method for connecting to a web page are provided to easily connect to the web page even if a client inputs a network address in a native language of diverse formats. CONSTITUTION: Database servers(4,6) store the network address by matching with the native language of a first format. A first recognizer(31) judges that a keyword inputted from the clients(1-1n) has a hierarchical architecture including a discriminator. A first connection processor(33) makes the client connect to the web page by proving the client with the network address corresponding to the keyword of the first format received from the database server. A second recognizer(32) judges that the keyword is a second or third format in case that the keyword has the hierarchical architecture including the discriminator. In the case that the keyword is the second format including the native language and a classification code, a second connection processor(34) makes the client connect to the web page by offering a domain name server(5) with the keyword after encoding the native language to an English format.
Patent KR-20040078468-A (KR)
Inventor: JANG SEUNG GWAN
IPC: B60S3/06
Filed: 2003-03-04
Abstract: PURPOSE: An apparatus for removing residuary sticker is provided to remove residuary sticker of the bumper guard, molding or garnish without any scar. CONSTITUTION: An apparatus for removing residuary sticker comprises an adaptor(32) for connecting an electromotor to a rotating part; a rotating shaft(33) set into the adaptor to transfer rotatory power; a soft rubber(40) set in the rotating shaft to produce friction; a connecting part for the rubber to connect with the rotating shaft without eccentric force.
Patent KR-20040079585-A (KR)
Title: Cupping device with rubber capable of attaching the cupping device in the vacuum state to a user's body for long time
Inventor: PARK JONG TAK
IPC: A61M1/08
Filed: 2003-03-07
Abstract: PURPOSE: Provided is a cupping device with rubber for the purpose of the circulation of the blood and the bloodletting, in which rubber is used by attaching to the cupping device so that it is possible to attach the cupping device in the vacuum state to a user's body for long time. CONSTITUTION: The cupping device with rubber is manufactured by attaching flexible silicon rubber to a plastic cupping device (bloodletting device) so that a strong vacuum state is maintained and the cupping device is attached to muscles or skin for long time. As a popular medical instrument for improving a user's health and curing his/her disease, the cupping device attaching the rubber is more efficiently used.
Patent KR-20040083111-A (KR)
Title: Uncooled infrared sensor with 2-layer structure and its manufacturing method
Inventor: LIM YONG GEUN
IPC: G01J1/40
Filed: 2003-03-21
Abstract: PURPOSE: An uncooled infrared sensor with 2-layer structure and its manufacturing method are provided obtain an absorption ratio above 95% at a central wavelength band of an infrared sensor by constructing the infrared sensor with 2-layer structure. CONSTITUTION: An uncooled infrared sensor with 2-layer structure includes a read out IC substrate(1) and a reflective metal layer(2) formed on the read out IC substrate(1). At least one anchor(3) is formed on an upper portion of the read out IC substrate(1). A first insulating layer(4) is interposed between the reflective metal layer(2) and an air gap while being supported by means of the anchor(3). A thermal conductive wire(5) is patterned on the first insulating layer(4). A second insulating layer(6) is formed on the first insulating layer(4). An absorption layer(7) is formed on the second insulating layer(6).
Patent KR-20040002477-A (KR)
Inventor: MOTOI KEIICHI
IPC: G03F7/11
Filed: 2003-03-28
Abstract: PURPOSE: A photosensitive printing plate precursor is provided, to obtain a good releasability of a cover film in plate making and an excellent reproducibility in printing and plate making of micropattern. CONSTITUTION: The photosensitive printing plate precursor comprises a supporter; a photosensitive resin layer; a coating layer; and a cover film, wherein the coating layer contains an active radiation absorbent having absorption in the active radiation range of the photosensitive resin layer and having an average molecular weight of 1,000 or more. Preferably the active radiation absorbent is a UV-absorbing fine particle having an average particle size of 1-500 nm; the coating layer has a thickness of 1 micrometers or less and a transmittance of 50-99 % to the light of wavelength of 360 nm; and the releasing force between the coating layer and the film cover is 1-100 g/cm.
Patent KR-20040087552-A (KR)
Inventor: CHO SEONG HUI
IPC: C01B31/02
Filed: 2003-04-08
Abstract: PURPOSE: A carbon group compound particle for an electron emission of a display is provided to emit effectively electrons by allowing a plurality of carbon materials to being protruded around a surface of particles. CONSTITUTION: A carbon group compound particle(1) for an electron emission of a display comprises a particle(2) constituted by at least one material selected from a group formed with metal, oxide, and a ceramic material, and a carbon group material(3) having one part buried at inside of the particle and having another part protruded at a surface.
Patent KR-20030036471-A (KR)
Inventor: LEE DONG GUN
IPC: A63B69/36
Filed: 2003-04-09
Abstract: PURPOSE: A golf swing exercise device is provided to correct a golf position and strengthen a muscle force within a trajectory range. CONSTITUTION: The angle of a cylindrical trajectory(1) is adjusted by the cylindrical trajectory(1) and a support(2) supporting the cylindrical trajectory(1). The rotational angle of a golf club is adjusted by an angle adjuster and then is locked by an angle fixing screw(4) so as not to be distorted. The cylindrical trajectory(1), a golf club grip(5) and a bead axis are connected in order that the bead axis is moved according to a swing angle within a bead movable range(6) at a lower part of the golf club.
Patent KR-20030081146-A (KR)
Title: 세 개의 특정 입체장애 아민 화합물을 함유하는 안정화제혼합물
IPC: C08K5/3475
Filed: 2003-04-10
Abstract: 성분(I)은 예컨대 하기 화학식(1bb)의 화합물이고, 성분(II)는 예컨대 하기 화학식(1aa)의 화합물이며, 또 성분(III)은 예컨대 하기 화학식(2aa)의 화합물인 세 개 성분 (I), (II) 및 (III)을 함유하는 안정화제 혼합물은 유기물질을 광, 열 또는 산화에 의해 유도된 분해로부터 안정화시키는데 효과적이다: 
       (1bb) 
       (1aa) 
       (2aa) 
     식중에서, E 1 및 E 1   * 은 수소이고; b 1 은 2 내지 20의 수이며; 또 R 6 은 수소임.
Patent KR-20040089875-A (KR)
Inventor: LEE SEUNGBOK
IPC: A47J23/00
Filed: 2003-04-15
Abstract: PURPOSE: An apple corer as an instrument for continuously removing seeds from apples is provided. It easily removes seeds of apples while remaining the edible portion of apples and increases a working speed. CONSTITUTION: The apple corer comprises: a seed removing knife(11); a manual operation handle(16) attached with a handle fixing device(17) and a hinge fixing device for hingedly fixing a seed removing knife operating rod(12); the seed removing knife operating rod for engaging the seed removing knife operating rod with the operation handle; an operating rod guide(13) for guiding the engagement of seed removing knife operating rod with the handle; and a guide support(14) for supporting the operating rod guide; a fixing plate(15) for supporting the guide support.
Patent KR-20030084623-A (KR)
Title: 유체 베어링 장치
IPC: F16C33/12
Filed: 2003-04-18
Abstract: 하우징은 수지 조성물에 의해 형성되며, 소결금속으로 이루어진 베어링 슬리브를 인서트 부품으로 하여 수지를 사출 성형하여 형성된다. 하우징은 원통형 본체부와, 본체부의 상단으로부터 내경 쪽으로 뻗은 밀폐부와, 본체부의 하단을 막는 바닥부를 구비하고 있다. 하우징은 본체부와 바닥부를 일체 형성하여 하나의 부재로 하고 이것을 밀폐부와 용착한 것이다.
Patent KR-20040092271-A (KR)
Inventor: AHN JUN HYEONG
IPC: H05B3/40
Filed: 2003-04-25
Abstract: PURPOSE: A ceramic tube heater with radiation fin and a method for manufacturing the same are provided to achieve improved heat efficiency and a fast heating response speed and reduce a manufacturing cost by inserting a ceramic tube into a metal tube. CONSTITUTION: A ceramic tube heater with radiation fin comprises a filament heater(22) for generating heat; a ceramic tube(21) into which the filament heater is inserted; a power input terminal(26) connected to both ends of the filament heater; an insulator(25) for sealing the both ends of the ceramic tube; and a metal tube into which the ceramic tube is inserted and having a radiation fin at the circumference.
Patent KR-20040093279-A (KR)
Inventor: JUN HO YEOL
IPC: H01L27/146
Filed: 2003-04-29
Abstract: PURPOSE: A CIS(CMOS Image Sensor) and a test method are provided to secure FA(Failure Analysis) by using a test pattern capable of monitoring the thickness of a p-type epi-layer. CONSTITUTION: A CMOS image sensor is provided with a test pattern. The test pattern comprises a p-type epi-layer(21) formed on a p-type substrate(20), an n-type barrier(22), a plurality of n-type ion-implanted regions(24a,24b,24c) for a photodiode formed in the epi-layer, and p-type ion-implanted regions(25-30). The n-type barrier is formed between the substrate and the epi-layer for isolating. Ion-implanted buffer layers(31,32) are formed on the epi-layer, so that the n-type ion-implanted regions have different ion-implanted depth each other.
Patent KR-20040093958-A (KR)
Inventor: SO JIN U
IPC: D06F39/08
Filed: 2003-04-30
Abstract: PURPOSE: A water supply chamber for a washing machine using nano silver is provided to destroy microorganisms in the water by an antibacterial effect of a filtering ball by supplying the water from the outside through a plurality of the filtering balls into the washing machine. CONSTITUTION: A water supply chamber for a washing machine using nano silver is composed of a water inlet pipe(1) formed at one side and connected with a water supply pipe(40); a water feeding pipe(2) having a front end facing a lower part of a water storage tub at the other end; and a plurality of filtering balls(5) coated with the nano silver and filled in a housing(10) attached with a cover(3). The housing is installed adjacently to the lower part of the water inlet pipe and the water feeding pipe formed at the opposite side for the water inlet pipe is adjacent to the cover.
Patent KR-20040014171-A (KR)
Inventor: KAMABUCHI AKIRA
IPC: G03F7/004
Filed: 2003-05-19
Abstract: PURPOSE: A novel sulfonate and a chemical amplification positive resist composition are provided, to obtain a composition suitable for lithographic printing using an excimer laser such as ArF and KrF and having excellent photosensitivity, resolution, dry etching resistance and line edge roughness. CONSTITUTION: The composition comprises the sulfonate of the formula 1, and a resin which contains a structural unit having an acid-labile group, is insoluble or hardly soluble in an alkali aqueous solution, but becomes soluble in an alkali aqueous solution by the action of an acid, wherein Q1, Q2, Q3, Q4 and Q5 are independently H, an alkyl group of C1-C16, an alkoxy group of C1-C16 or an electrophilic group; A+ is a counter ion; and at least one among Q1, Q2, Q3, Q4 and Q5 is an electrophilic group.