baber/WOPTO huggingface dataset:
Patent KR-20120020952-A (KR)
Inventor: JUNG JAE YOUNG
IPC: B21D43/00
Filed: 2010-08-31
Abstract: 본 발명은 내부에 유체가 충전되는 등속조인트의 커버 일단을 밀봉하기 위한 조임링의 제조에 있어, 일정폭을 갖는 금속띠로 되는 소재를 각각 상,하 한 조로 되어 각각 피어싱, 커팅 및 절곡작업이 순차적으로 이루어지도록 한 프레스 금형을 통과하는 과정에서 소재에 체결부가 피어싱됨과 동시에 일정길이단위로 커팅되면서 그 일측에 체결부를 절곡 형성하여 최종적으로 링형으로 감아 말기 용이한 금속편 형태를 갖는 펀칭소재로 형성되도록 한 상태에서, 이후 펀칭소재를 푸셔에 의해 하나씩 순차적으로 이송수단으로 보내 이 이송수단에 의해 다시 협지회동구로 이송되게 하여, 협지회동구가 펀칭소재를 링형성형수단 측에 그대로 내려놓음과 동시에, 링형성형수단이 작동하여 펀칭소재를 최종적으로 링형으로 감아 말아 제품으로서 취출 되도록 함으로써 목적한 등속조인트 커버 조임링의 제조가 이루어질 수 있게 하는 것에 의해, 띠형 금속재로 되는 소재에 대해 작업자의 손을 전혀 빌지않고서도 논스톱으로 일련의 피어싱, 커팅 및 절곡의 프레스 공정을 거쳐 펀칭소재를 성형한 후, 최종적으로 링형으로 감아 마는 일련의 성형공정이 이루어질 수 있도록 함으로써, 등속조인트 커버 조임링의 생산성을 향상시켜, 등속조인트 커버 조임링에 대한 대량생산이 가능하게 되므로 그 제조단가를 대폭 절감할 수 있도록 한 것으로, 등속조인트 커버 조임링 제조방법에 있어서, 투입되는 띠형 금속재의 소재(01)가 금형(2)을 거치면서 펀칭소재(1)로 1차 성형 되게 하는 펀칭소재 성형단계(S1)와, 1차 성형된 펀칭소재(1)를 푸셔(3)에 의해 이송수단(4) 측으로 밀어내는 푸싱단계(S2)와, 이송수단(4)에 의해 펀칭소재(1)를 하나씩 순차적으로 협지회동구(5)로 이송시키는 이송단계(S3)와, 이송된 펀칭소재(1)를 협지한 상태에서 90°회동시켜 두께 방향으로 돌려세운 상태로 펀칭소재(1)를 링형성형수단(6)측으로 공급하는 공급단계(S4)와, 공급된 펀칭소재(1)를 링형성형수단(6)에 의해 링형으로 감아 말아 최종적으로 등속조인트 커버 조임링(A)상태로 취출 되게 하는 링형 성형단계(S5)로 되는 것을 특징으로 하는 등속조인트 커버 조임링 제조방법이다.
Patent KR-20120022336-A (KR)
Title: Ultrasonic detection device for pipe
Inventor: BONG HUYK
IPC: G01N29/04
Filed: 2010-09-02
Abstract: PURPOSE: A pipe inspection apparatus using the ultrasonic wave is provided to improve the productivity because a structure is simple even though the fluid is used as a couplant and to control a turbulent flow and vortex of fluid existing between an ultrasonic sensor and a pipe. CONSTITUTION: A pipe(100) inspection apparatus using the ultrasonic wave comprises a housing, an ultrasonic sensor(20), a fluid guide member, a rotary motor(50), and a power transmission member. The pipe is arranged in the inner part of the housing. The housing is arranged to be rotated around a shaft of the pipe. The ultrasonic sensor is arranged in the housing to be separated from the pipe. The fluid guide member is arranged between the housing and pipe. The fluid guide member guides a fluid flow from outside to inside of the housing. The power transmission member transmits a torque of the rotary motor to the housing.
Patent KR-20120026282-A (KR)
Title: System and method of providing user personalized advertisement using settop-box control log and contents search log
Inventor: CHO SUN YOUNG
IPC: G06Q30/00
Filed: 2010-09-09
Abstract: PURPOSE: A system for providing a user customized advertisement using settop box control records and content search records and a method thereof are provided to enable a user to use a mobile terminal capable of wireless communication to access a broadcast content managing server, thereby providing a user customized advertisement to the user. CONSTITUTION: A user content usage information managing unit(220) generates user content usage information for a user of the mobile terminal using at least one of an interactive TV device control request signal and a search request signal received from the mobile terminal. A customized advertisement managing unit(250) obtains content matched with the user content usage information. The obtained advertisement content is outputted through an interactive TV device or the mobile device.
Patent KR-20120027791-A (KR)
Title: Light chain of human antibodies specific for interleukin-15
Inventor: CHA SANG HOON
IPC: C12N15/13
Filed: 2010-09-13
Abstract: PURPOSE: A light chain gene of an antibody, which specifically binds to interleukin-15 is provided to obtain human Fab of high affinity. CONSTITUTION: A light chain gene of an antibody, which specifically binds to interleukin-15 encodes an amino acid sequence of sequence number 4. The gene has a base sequence of sequence number 9. The light chain has an amino acid sequence of sequence number 4. An antibody which specifically binds to interleukin-15 contains the light chain protein which specifically bindsto inteluekin-15. A composition for preventing and treating autoimmune disease contains the antibody.
Patent KR-20120035612-A (KR)
Title: Polyester film for carrier sheet of the optically clear adhesives
Inventor: KANG BONG JIN
IPC: C08J5/02
Filed: 2010-10-06
Abstract: PURPOSE: A polyester film is provided not to be attached of foreign substances, not to generate static electricity, to easily control surface roughness and thermal contraction ratio, and to be suitable for off-line release coating process. CONSTITUTION: A polyester film for a transparent adhesive separate sheet is biaxially stretched polyethylene terephthalate film in which both sides are not corona surface treated or inline coating treated, and satisfies formula 1: 5.0 <= haze <= 7.5 and formula 2-1: MDHS = 0.91 - 0.130*TDHS, MDTS = 20.9 + 0.165*TDTS at the same time, but, MDTS is 23kgf/mm^2 or more. The film has the thickness of 50±5 micron, of which thermal contraction ratio along MD direction is controlled to minus value.
Patent KR-20120035653-A (KR)
Title: Seasoning fish composition and method of manufacturing processed food using the same
Inventor: OH YOUNG SUK
IPC: A23L27/00
Filed: 2010-10-06
Abstract: PURPOSE: A seasoned fish meat composition, and a producing method of a seasoned fish meat product are provided to improve the taste of the composition by the optimum seasoning mixture rate. CONSTITUTION: A producing method of a seasoned fish meat product comprises the following steps: mixing 86-90wt% of surimi, 9-10wt% of supplementary ingredients, and 2-3wt% of food additives; molding the seasoned mixture into a fixed shape before drying; and heat-compressing the dried mixture before roasting. The supplementary ingredients include white 4-6wt% of sugar, 1-2wt% of refined salt, 0.5-1wt% of processed butter, and 2-3wt% of flour. The food additives include 0.2-0.4wt% of monosodium L-glutamate, 2-2.5wt% of jade powder, 0.01-0.1wt% of calcium carbonate, and 0.005-0.015wt% of baking powder.
Patent KR-20120036581-A (KR)
Inventor: KIM WON HI
IPC: B65D75/32
Filed: 2010-10-08
Abstract: PURPOSE: An edible food ingredient storage container, and a producing method thereof are provided to enable users to easily transport food ingredients. CONSTITUTION: An edible food ingredient storage container includes a container main body(11) and a cover(12). The container main body is formed with edible ingredients, and has a fixed shape. The container main body includes an opening on the upper side, and a storage unit(11a) for storing food ingredient. The cover is installed on the upper side of the container main body, and is formed with the edible ingredients. The container main body and the cover contain animal gelatin.
Patent KR-20120040974-A (KR)
Title: Semiconductor device, memory module and memory system having the same and operating method thereof
Inventor: PARK CHUL WOO
IPC: G11C11/40
Filed: 2010-10-20
Abstract: PURPOSE: A semiconductor device, a memory module including the same, a memory system, and an operating method thereof are provided to improve performance of a memory by adopting various operation methods corresponding to a finite data retention property of a DRAM and integrally managing the DRAM. CONSTITUTION: A memory module includes a module board, one or more memory chips(1200_1 to 1200_n), and a memory management chip(1100). The memory chip is mounted on the module board and includes a memory cell array with a plurality of areas. A memory management chip is mounted on the module board and includes a meta data storage unit and a refresh management unit. The meta data storage unit stores meta data about a plurality of areas of the memory cell array of a first semiconductor chip. A refresh managing unit generates a refresh address by referring to the first information to selectively perform a refresh operation about a plurality of pages.
Patent KR-20110047977-A (KR)
IPC: G03G15/08
Filed: 2010-10-22
Abstract: PURPOSE: A color electronic picture image forming device is provided to uniformly contact the developing carriers to a rotation axis direction of a phase carries about the phase carriers. CONSTITUTION: An image forming device(11) includes a phase carriers(3a), a developing device a driving member, a first fluctuation supporting member, a second fluctuation supporting member, a first restraint member, and a second restraint member. The phase carries are formed on an electrostatic image. The developing device includes a contact unit which is contactable to the phase carries and developing carries which develops the electronic phase with a carried developing material.
Patent KR-20120061104-A (KR)
Title: Wave monitoring system and method for marine structures at the open sea
Inventor: HEO JIN WOOK
IPC: G01W1/00
Filed: 2010-10-22
Abstract: PURPOSE: Wave monitoring system and method for marine structures at open sea are provided to improve the stability and the efficiency of the wave monitoring system by dispersing complex functions for a wave monitoring process. CONSTITUTION: A wave monitoring system includes a monitoring system(100), an operating system(300), and an analyzing system(600). The monitoring system collects and transfers wave information. The operating system receives the wave information from the monitoring system and saves the received wave information. The received wave information is transferred to the analyzing system. The analyzing system analyzes the wave information in real time and extracts analysis information. The wave monitoring system further includes a back-up system. The back-up system backs up the wave information in response to the back-up request of the operating system.
Patent KR-20120043868-A (KR)
Title: Method of cutting substrate
Inventor: LEE MIN WOO
IPC: G02F1/13
Filed: 2010-10-27
Abstract: PURPOSE: A substrate cutting method is provided to cut a part of an upper substrate of a display panel using an adhesive unit. CONSTITUTION: A cut groove is formed on a boundary line between a first area and a second area on an upper substrate of a display panel(S100). An adhesive unit is attached onto the second area of the upper substrate(S110). The second area of the upper substrate with the adhesive unit is eliminated from the display panel(S120).
Patent KR-20120045207-A (KR)
Title: Semiconductor package
Inventor: LEE YONG SUK
IPC: H01L23/48
Filed: 2010-10-29
Abstract: PURPOSE: A semiconductor package is provided to simplify an overall manufacturing process by effectively laminating a plurality of semiconductor packages. CONSTITUTION: A semiconductor package comprises a plurality of leads, a semiconductor chip, a wire, and a molding part. The leads(110) are arranged by being separated from each other. The upper end and the lower end of the lead are respectively exposed to the outside. The semiconductor chip(120) is mounted on the leads. The wire electrically connects the semiconductor chip and the lead. The molding part(140) molds the semiconductor chip and the wire.
Patent KR-20110048006-A (KR)
IPC: G03G15/08
Filed: 2010-10-29
Abstract: PURPOSE: A developing device, a developing cartridge, a process cartridge and image forming device are provided to lower an ability to expose a toner from a gap between a sheet member and a developing roller. CONSTITUTION: A developing device includes a developing container(7a), a developing roller, a support roller, a sheet member, a through-hole, and a filter member. The developing container accepts the developing member. The developing roller develops the developing member which dipped an electrostatic latent image formed on an image bearing member and is arranged to the opening of the developing container. The supply roller is arranged inside the developing container and supports the developing member to the developing roller by contacting with the developing roller.
Patent KR-20120045530-A (KR)
Title: Light emitting device
Inventor: LEE SANG YOUL
IPC: H01L33/38
Filed: 2010-10-29
Abstract: PURPOSE: A light emitting device is provided to stably combine a conductive semiconductor layer with the light emitting device by securely fixing a light emitting structure on a lower conductive layer using a head of a combining pin. CONSTITUTION: A transparent substrate layer(140) is located on a lower conductive layer(150). A lower contact layer(120) is located on the transparent substrate layer. A light emitting structure is located on the lower contact layer. The light emitting structure comprises an active layer(112). A combining pin(180) is formed by penetrating the light emitting structure to the lower conductive layer. The combining pin electrically connects the low contact layer and the lower conductive layer.
Patent KR-20120053825-A (KR)
Title: System and method for sharing resource in zigbee network
Inventor: SONG OH YOUNG
IPC: H04L12/28
Filed: 2010-11-18
Abstract: PURPOSE: A zigbee resource share system and method thereof are provided to share resources and to contact to a gateway or a server by using a relay apparatus connected with a zigbee apparatus. CONSTITUTION: A resource management server(200) includes memory resources. A RMC(Resource Management Client)(100) is arranged on a zigbee network similar with the RMC. A client request transmission unit(120) transmits resource share requests to the resource management server. A client response reception unit(130) receives resource share responses from the resource management server.
Patent KR-20120053888-A (KR)
Title: Variable compression ratio apparatus
Inventor: LEE DONG SEOK
IPC: F02D15/02
Filed: 2010-11-18
Abstract: PURPOSE: A VCR(Variable Compression Ratio) device, is provided to secure an operation safety through restricting motion trajectory of an eccentric link by a balance weight and a guide bar. CONSTITUTION: A VCR(Variable Compression Ratio) device comprises a connecting rod(20), an eccentric link(40), a variable link(50), a variable gear link(60), a control shaft(80) and a guide bar(90). One end of the connecting rod is rotatably connected to a piston(10) through a piston pin(12). The other end of the connecting rod is rotatably connected to a crank shaft(30). An eccentric bearing is connected to one end of the eccentric link and installed in a mounting groove concentrically. One end of the variable link is connected to the other end of the eccentric link to be rotated. The variable gear link is rotated about a fixing shaft(70). A first gear teeth(62) is formed in an outer circumference of the variable gear link. An outer surface portion of the variable gear link is connected to the other end of the variable link to be rotated. A second gear teeth(82) of the control shaft is engaged with the first gear teeth. The control shaft is rotated to spin the variable gear link. The guide bar restricts horizontal movements of the eccentric link with the connecting rod.
Patent KR-20120058258-A (KR)
Title: 고탄소 크롬 베어링강 주편의 거대탄화물 제거방법
Inventor: KIM KWAN HO
IPC: C21D6/00
Filed: 2010-11-29
Abstract: 본 발명은 고탄소 크롬 베어링강 주편에 관한 것으로서, 일정량의 Ce을 첨가하고, 주조 후 적절한 조건으로  균열확산처리를 실시함으로써 베어링의 피로수명을 감소시키는 편석대의 거대탄화물을 보다 경제적으로 제거할 수 있는 고탄소 크롬 베어링강 주편의 거대탄화물 제거방법을 제공하고자 하는 것이다.  
본 발명의 일측면에 의하면, 중량%로, C: 0.5~1.2%, Si: 0.15~2.0%, Mn: 0.05~0.45%, P: 0.025% 이하(0은 제외), S: 0.025%이하(0은 제외), Cr: 0.1~1.6%, Ce: 0.01~0.3%, 나머지 Fe 및 불가피한 불순물을 포함하는 고탄소 크롬 베어링강의용강을 주조하여 주편을 제조한 후, 주편을 1190~1250℃에서 1시간 이하 동안 유지하여 균열확산처리하는 고탄소 크롬 베어링강 주편의 거대탄화물 제거방법이 제공된다. 
 본 발명에 의하면, 베어링의 피로수명을 감소시키는 편석대의 거대탄화물을 보다 경제적으로 제거할 수 있는 방법을 제공함으로써, 피로수명이 우수한 고탄소 크롬 베어링강 선재를 보다 경제적으로 제조할 수 있다.
Patent KR-20120059991-A (KR)
Title: Memory device, test operation method thereof, and system having the same
Inventor: SIM SOUNG HOON
IPC: G11C29/50
Filed: 2010-12-01
Abstract: PURPOSE: A memory device, a testing method thereof, and a system including the same are provided to efficiently monitor a process in a mass production by measuring a lead current of a memory cell. CONSTITUTION: A reference current generator(41) generates a reference current. A reference voltage generated by the reference current is supplied to one input terminal of a sense amplifier(70). A lead voltage generated by a lead current of a memory cell(31) is supplied to the other input terminal of the sense amplifier. The sense amplifier compares the reference voltage with the lead voltage. If the level of the lead current is lower than the level of the reference current, the sense amplifier counts the memory cell.
Patent KR-20120062116-A (KR)
Title: Alarming apparatus for exchanging filter box
Inventor: KIM JUNG JIM
IPC: A62B23/04
Filed: 2010-12-06
Abstract: PURPOSE: An alarming device for exchanging a filter box is provided to stably exchange a septic tank at appropriate time. CONSTITUTION: An alarming device for exchanging a filter box comprises a septic tank main body(10), detecting tools(12), and replacing tools(14). The detecting unit is installed in main body of the septic tank. The detecting tool detects during inhalation of agents. The detecting tool is either a detecting lamp or a detection paper. The detecting tool is changed from 10 minutes before replacement time of the septic tank. The exchange tool is installed in main body of the septic tank. The exchanging tool informs replacement time of the septic tank. The exchange tool is either an exchange lamp or an exchange detection paper.
Patent KR-20120062348-A (KR)
Title: Apparatus and method for controlling speed of vehicle
Inventor: JEON SEO HYUN
IPC: B60W30/18
Filed: 2010-12-06
Abstract: PURPOSE: An apparatus and a method for controlling the speed of a vehicle are provided to prevent the occurrence of accidents due to speeding by controlling the speed of the vehicle based on road conditions according to weather. CONSTITUTION: An apparatus for controlling the speed of a vehicle includes a sensor(100), a pedal sensor(200), and a controlling part(300). The sensor includes a humidity sensor(110), a distance sensor(120), a vehicle speed sensor(130), and a steering sensor(140). The humidity sensor measures the humidity of a road on which the vehicle drives. The distance sensor measures the visibility range of the vehicle on the road. The vehicle speed sensor measures the current speed of the vehicle. The steering sensor detects the steering degree of the vehicle according to the manipulation of a steering handle. The pedal sensor measures the input of an acceleration pedal. The controlling part compares the set speed according to the humidity of the road and the visibility range of the vehicle and the current speed of the vehicle. The comparison result is reflected to the vehicle.
Patent KR-20110115507-A (KR)
Inventor: KIM MYUNG SEUNG
IPC: E02D27/16
Filed: 2010-12-20
Abstract: 본 발명은 온실의 기초 공사 시, 미리 제작한 콘크리트기둥을 터파기가 끝난 지중에 간단하게 안착시켜 설치할 수 있는 조립식 독립기초와 이를 이용한 온실 기초의 시공 방법에 관한 것이다. 
본 발명에 따른 온실 기초공사에서 터파기가 끝난 지중에 설치될 콘크리트기둥을 지지하기 위한 조립식 독립기초는, 상부에 대하여 하부가 단차를 두고 상대적으로 넓은 폭으로 형성되며, 상부 또는 하부의 평면 형상이 다각형 또는 원형을 이루는 독립기초 몸체부; 독립기초 몸체부의 상하 방향의 내부 중심축을 따라 관통되며, 상부가 콘크리트기둥의 폭보다 넓게 형성되고 하부가 콘크리트기둥의 폭보다 좁게 형성되는 기둥삽입부; 독립기초 몸체부의 상부 외측면을 따라 일정 간격을 두고 기둥삽입부 방향으로 관통하여 일체로 장착되는 복수의 기둥고정너트부; 및 기둥고정너트부에 체결되며, 기둥삽입부에서 콘크리트기둥의 위치를 조절하고 고정하는 기둥고정볼트부를 포함한다.
Patent KR-20120069854-A (KR)
Title: System for attaching of touch panel
Inventor: LEE SE GYU
IPC: G06F3/041
Filed: 2010-12-21
Abstract: PURPOSE: A vacuum-based touch panel bonding system is provided to improve yield by bond a touch panel cell and a window for protecting the touch panel cell under a vacuum state. CONSTITUTION: A first load lock chamber(311) aligns a loaded touch panel cell. A second load lock chamber(312) loads and aligns a window on which ultraviolet resin is applied. A transferring chamber(320) transfers the touch panel cell and the window to a processing chamber. The processing chamber bonds the loaded touch panel cell and the loaded window under a vacuum state. The first load lock chamber or the second load lock chamber include a substrate chuck fixing the touch panel cell or the window and aligner aligning the position of the fixed touch panel cell or the window.
Patent KR-20120069865-A (KR)
Title: Polycarbonate resin composition and molded article thereof
Inventor: LEE SEOK IN
IPC: C08L69/00
Filed: 2010-12-21
Abstract: PURPOSE: A polycarbonate resin composition and a molded product thereof are provided to enhance shock resistance, workability, fire retardance, scratch resistance, heat resistance, and light-proof and to usefully apply to wrapping part of electricity/electronic products for extrusion and injection. CONSTITUTION: A polycarbonate resin composition comprises 30-80 weight% of polycarbonate, 5-15 weight% of vinyl-based graft copolymers, 10-40 weight% of polyarylate, 0.1-2 weight% of epoxy functionalized chain extender, 1-20 weight% of phosphorous-based flame retardant, and 0.1-3 weight% of fluorinated polyolefin. A weight ratio of the components is 0.9:1-7:1. The vinyl graft copolymer component comprises 10-30 weight% of rubber polymer unit, 40-60 weight% of aromatic vinyl unit, and 20-30 weight% of vinyl cyanide unit.
Patent KR-20120071768-A (KR)
Title: Apparatus for remotely controling iptv and method for interface control thereof
Inventor: BYUN WOO SUB
IPC: H04N21/4227
Filed: 2010-12-23
Abstract: PURPOSE: An apparatus for remotely controlling IPTV is provided to enable the disabled person to conveniently use a remote controller function. CONSTITUTION: A left input unit(111) and a right input unit(112) receive influence of a user. A signal converting unit(113) converts inputted influence into a signal of the left input unit and the right input unit. The signal converting unit converts influence into an electric signal. A signal output unit(114) converts the converted signal into an output signal. The signal output unit transmits the output signal to a set top box.
Patent KR-20120076831-A (KR)
Title: High speed sense amplifier and method of operating the high speed sense amplifier
Inventor: SONG YUN HEUB
IPC: G11C7/06
Filed: 2010-12-30
Abstract: PURPOSE: A high speed sense amplifier and an operating method thereof are provided to implement a fast response speed of a sense amplifier through a current mirror structure. CONSTITUTION: A sense amplifier circuit(200) senses a difference between a cell current of a first input node and a reference current of a second input node and amplifies the current difference. A current mirror circuit(130,330) is combined with a first input node and a second input node of the sense amplifier circuit and generates a first distribution current and a second distribution current by multiplying a bias current by N times through the first input node and the second input node. A cell current supply unit(110) includes a current source which provides a bias current.
Patent KR-20120077089-A (KR)
Title: 차량의 서브 프레임용 마운팅 너트 유닛
Inventor: KOO DO HOI
IPC: B62D21/00
Filed: 2010-12-30
Abstract: 차량의 서브 프레임용 마운팅 너트 유닛이 개시된다. 본 실시예에 따른 차량의 서브 프레임용 마운팅 너트 유닛은 차량의 프론트 사이드 멤버의 후방측 하부패널과 보강패널 사이에 구성되어 서브 프레임을 볼트 체결하기 위한 차량의 서브 프레임용 마운팅 너트 유닛에 있어서, 원통형 몸체로 내주면에는 나사산이 형성되며, 상단부는 원추형으로 돌출 형성되는 원추형 결합부가 형성되어 상기 하부패널의 체결홀 둘레의 상면에 하단이 용접 고정되는 하부 너트체; 원통형 몸체로 내주면에는 나사산이 형성되며, 하단부에는 원추형 홈으로 형성되어 상기 원추형 결합부가 삽입되어 접촉되는 원추형 삽입부가 형성되어 상기 보강패널의 끼움홀에 끼워진 상태로 용접 고정되는 상부 너트체를 포함한다.
Patent KR-20120077362-A (KR)
Title: Magnetic particle and the fabrication method thereof
Inventor: CHOE WON GYUN
IPC: H01F1/11
Filed: 2010-12-30
Abstract: PURPOSE: A magnetic particle and a manufacturing method thereof are provided to obtain a magnetic particle which can be specifically encoded and applied to security ink, thereby enabling effective and quick discrimination of forgery. CONSTITUTION: A magnetic particle sensitive to high energy comprises a magnetic core(100), a shell(300), and continuous or discontinuous void(200). The core is formed by dispersing and impregnating a plurality of super-paramagnetic nano particles in a dielectric material or polymer matrix. The continuous or discontinuous void is formed between the core and the shell. The shell includes metal or metal compound containing stable isotope. The gap or diameter of the void is 10nm or greater and the diameter of pores is 50nm or greater.