baber/WOPTO huggingface dataset:
Patent KR-20000044270-A (KR)
Title: Method for managing backup data in non-volatile memory
Inventor: JEONG U SEONG
IPC: G11C11/41
Filed: 1998-12-30
Abstract: PURPOSE: A method for managing a non-volatile memory is provided to prevent the loss of data by effectively managing the data in the non-volatile memory. CONSTITUTION: To renew data in a non-volatile memory, the check-sum values in backup regions are compared to the order-numbers in original regions. According to the result of comparison, an error in a memory update is verified for restoring the data with the error in a circuit. In loading initial data, the latest data are used by comparing the order-numbers in the backup region with the original region. Herein, the check-sum values and the order-number values are prepared by the page. Moreover, the number of the backup regions of the non-volatile memory is more than one.
Patent KR-20000046783-A (KR)
Title: Circuit using substrate voltage for reducing current in stand-by mode
Inventor: CHUN HYUNG KYU
IPC: H03K17/00
Filed: 1998-12-31
Abstract: PURPOSE: A circuit using substrate voltage for reducing current in stand-by mode is provided to enable users to select each substrate voltage in Short Stand-By (SSB) or Long Stand-By mode(LSB). CONSTITUTION: A circuit using substrate voltage for reducing current in stand-by mode connects a switch to a substrate terminal of a clamp transistor(Qc) which is linked to a main power line and a local power line. The device includes directly connecting a switch transistor (Qs) which is functioned by stand-by signals and a NMOS transistor (NM), directly connecting a clamp transistor (Qc) and a PMOS transistor (PM), connecting the back gate of a clamp transistor (Qc) to a primary switch (SW1), connecting a secondary switch (SW2) to the back gate of a PMOS transistor, connecting a local power line to the source of a switch transistor (Qs) and to the drain of a clamp transistor (Qc), connecting a local power line to the source of a NMOS transistor (NM) and the drain of a PMOS transistor, and connecting an inverter chain (10) which is composed of a series of parallel circuits.
Patent KR-19990044652-A (KR)
Title: 하수관 작업용 순환 배수 장치
IPC: F16L41/00
Filed: 1996-09-27
Abstract: 제 1 맨홀에 수중 펌프를 설치하고, 상기 제 1 맨홀보다 하류측에 있는 제 2 맨홀과 제 3 맨홀 사이의 하수관을 작업 구간으로 하고, 상기 제 1 맨홀과 제 2 맨홀 사이의 하수관의 유출측에 상류측 스톱 플러그를 설치하고,  상기 제 3 맨홀에 개구한 하수관의 유입측에 하류측 스톱 플러그를 설치하고, 지상에 설치한 흡인 배수 장치의 흡인관을 상기 상류측 스톱 플러그보다 상류측에 돌출시키고 상기 흡인 배수 장치의 배수관을 상기 하류측 스톱 플러그보다도 하류측에 돌출시키고, 상기 수중 펌프의 토출관을 상기 하류측 스톱 플러그보다 하류측까지 배설한 것을 특징으로 하는 하수관 작업용 순환 배수 장치이다.  이에 따라, 깊게 매설된 하수관에서도 오수 등을 배수할 수 있고, 악취가 지상으로 퍼지지 않게 할 수 있다.
Patent KR-19990063671-A (KR)
IPC: C07D239/30
Filed: 1996-09-20
Abstract: Pyridine carboxylic acid derivs. of formula (I) and their salts are new: R1 = H or carboxy protecting gp; R2 = OH, lower alkoxy or opt. substd. amino; R3 = H or halo; R4 = H or halo; R5 = halo or opt. substd. cyclic amino; R6 = H, halo, NO2 or opt. protected amino; X, Y, Z = N, CH or CR7; R7 = lower alkyl, halo or CN; provided that \- 1 of X-Z = N; W = N or CR8; R8 = H, halo or lower alkyl.
Patent KR-19990067030-A (KR)
Title: 필터 소자 및 그 제조 방법
IPC: D04H1/70
Filed: 1996-10-15
Abstract: 기저 섬유와 접합제의 동질의 혼합은 선택된 다공성의 부직포로 형성되어 압축된다.  접합제는 기저 섬유보다 더 낮은 용해 온도를 갖는 적어도 한 면을 갖는다.  시트는 선택된 형태로 형성되고 기저 섬유를 다공성의 필터 소자(11)로 접합하여 열적으로 융화된다.  바람직한 형태는 복수의 시트(13,15,17,19)의 나선형으로 묶인 튜브로 각각의 시트(13,15,17,19)는 자체 중첩되고 또 다른 시트(13,15,17,19)를 중첩하기 위해 압축된다.  각각의 시트(13,15,17,19)는 개별적으로 적당하게 가열되고 압축되며, 시트(13,15,17,19)는 열가소성 수지로 구성되는 군으로부터 분리되고 기저 섬유는 열가소성 및 자연 물질로 구성된 군으로부터 선택된다.
Patent KR-19990067565-A (KR)
Title: 국소 치료제 및 화장용 제제를 위한 조성물 베이스
IPC: A61K31/4174
Filed: 1997-09-11
Abstract: 본 발명은 (Ⅰ) 프로필렌 카보네이트, (Ⅱ) 에탄올, 이소프로필 알코올, 프로필렌 글리콜, 부틸렌 글리콜, 폴리에틸렌 글리콜, 헥실렌 글리콜, 메톡시폴리에틸렌 글리콜을 포함하는 하나 또는 그 이상의 짧은 탄소 사슬 알코올 및/또는 글리콜, 및 (Ⅲ) 글리세롤과 하나 또는 그 이상의 치료적으로 또는 화장적으로 활성인 성분중 하나 또는 둘다를 포함하는 국소용 완전 무수성 제제에 관한 것이다.
Patent KR-19990071483-A (KR)
IPC: C09B29/20
Filed: 1997-10-09
Abstract: The present invention relates to a novel 2-hydroxynaphthalene-3,6-dicarboxylic acid derivative. The compound is useful as a raw material for dyes, pigments, photosensitive materials and the like.
Patent KR-19990071999-A (KR)
Title: 다층 마이크로웨이브 및 극고주파 하이브리드 집적회로
IPC: H01L25/16
Filed: 1996-10-10
Abstract: 본 발명에 따른 다층 마이크로웨이브 및 극고주파(EFH) 하이브리드 집적회로는 적어도 한쪽면상에 위상 금속화 패턴층(2)을 갖는 고정식 고체 유전체판(1)의 다발을 포함하고, 상기 유전체판(1)의 리세스(6)속에 배치되어 고착제(7)에 의해 고착되는 후크-업 와이어드방식의 순수 반도체칩(3)을 구비한다. 상기 칩(3)의 접합 패드(4)는 상기 위상 금속화 패턴층(2)에 전기적으로 연결된다. 상기 칩(3)을 위한 리세스(6)는 상기 칩(3)이 장착되는 유전체판(1)의 적어도 한쪽면상에 형성된다. 상기 리세스(6)의 깊이는 상기 칩(3)의 표면이 상기 리세스(6)가 형성되는 상기 유전체판(1)의 표면과 동일평면상에 위치하도록 선택되고, 상기 리세스(6)의 측벽과 상기 칩(3)의 측벽사이의 간격은 1-180㎛이고, 상기 반도체칩의 표면과 상기 칩(3)이 장착되는 상기 유전체판(1)과 관련한 인접 유전체판(1)의 표면사이의 간격은 1-100㎛이다.
Patent KR-20000064807-A (KR)
Title: 손목시계 케이스에 손목 시계 끈을 고정시키는 방법
IPC: G04B37/16
Filed: 1998-01-30
Abstract: 본 발명은, 손목 시계 끈(1)(wristlet)을 위한 한 쌍의 고정 돌기 부분(2e)(attachment horn)을 갖춘 중간 부분을 가지는 손목 시계 케이스(watchcase)에 손목 시계 끈(1)(wristlet)을 고정시키는 ; 어떤 도구 이용 없이, 어떤 특별한 지식이나 시각적인 검사 없이, 중간 부분(2)에서 손목 시계 끈(1)을 즉각적으로 고정시키고 떨어뜨리는 것이 가능한 장치에 관한 것이다.  본 발명은, 손목 시계 끈(1)의 하나의 끝부분은 두 쌍의 걸쇠(4a, 4b, 4c, 4d)(pin)를 포함하는 플레이트(4)에 합체(合體)되고, 상기 걸쇠는 각각 플레이트(4)의 세로 테두리를 따라서 설치되고, 돌기 부분(2e)의 측면에서 공급되는 두 쌍의 홈(2a, 2b, 2c, 2d)(groove)과 두 쌍의 걸쇠(4a, 4b, 4c, 4d)(catch)는 함께 작동하는 것을 특징으로 한다.
Patent KR-20000015890-A (KR)
Title: Apparatus and method for mounting an electronic component to a substrate
Inventor: LIMPER BRENNER LINDA
IPC: H05K1/18
Filed: 1997-02-13
Abstract: PURPOSE: An apparatus for mounting an electronic component to a substrate having a cover which can enclose a die and a terminal is disclosed. CONSTITUTION: The electronic component (10) has a die (22) and a terminal (14) coupled to the die (22). The substrate has a first side (20) and a second side (82) and a passage (26) there through. The terminal (14) is in communication with the first side (20) and the die (22) is disposed within the passage (26). The apparatus includes a cover (16) which encloses the die (22) and a portion of the terminal (14), and has a fixed portion (28) and a removable portion. The fixed portion (28) includes a connection region coupled to the terminal (14) and an extension region disposed within the passage (26). The extension region has a surface that is substantially coplanar with the second side (82). There is a space (32) between the extension region and the substrate (18). An adhesive (34) is disposed on the surface of the extension region, extending into the space (32). A sealing frame (36) overlaps the space(32) and is in communication with the adhesive (34) and the second side (82).
Patent KR-20000022451-A (KR)
Title: Method for manufacturing thermoplastic elastomers
Inventor: OSTOJA STARZEWSKI KARL HEINZ A
IPC: C08F4/82
Filed: 1997-07-02
Abstract: PURPOSE: An appropriate catalyst with high activity, which residual weight of the catalyst is small in polymers, is provided to equal polymerization/copolymerization with arbitrary olefins, to equal diolefins, and to equal polymerization/copolymerization of the olefins, which supplies thermoplastic activity and an elastomeric product. CONSTITUTION: A method for manufacturing thermoplastic elastomers is composed of, by bulk (co)polymerizing gas phase, bulk phase, solution phase, or slurry phase of a monomer from a group, formed with C2-C8-alpha-olefins, C4-C15-diolefins, 1 or 2 halogenation C4-C15-dilolefins, vinyl ester, (math)acrylate and styrene, when having an organometallic catalyst which is activated by a co catalyst, using a metallocene compound as an organometallic catalyst between the metallocene compound of a formula (I) and a pi-complex of a formula (XIII).
Patent KR-20000051203-A (KR)
Inventor: YOO HYUN KI
IPC: H01L21/8239
Filed: 1999-01-19
Abstract: PURPOSE: A method for fabricating a flash memory device is provided which increases the cell density by reducing the overall cell area using a STI(Shallow Trench Isolation) process when during the process of forming a cell of an EPROM unit. CONSTITUTION: A method improves the reliability of a device by increasing the cell density, by reducing the field region area of a cell as assuring the minimum width and space of an active region by forming a flash EPROM device using a STI process. The method for fabricating a flash memory device includes the steps of: forming a trench on a semiconductor substrate(10) using STI(Shallow Trench Isolation) process; growing a gate oxide(18) on the whole surface of the inside/outside of the trench; filling the trench by depositing and etching a first polysilicon film(20) on the gate oxide, and forming an open aperture on the top; stacking a dielectric film on the whole surface of the resulted structure; depositing a silicide film(30) and a second polysilicon film(32) on the dielectric film; forming a pattern by etching from the second polysilicon film in sequence until the semiconductor substrate is revealed; forming a source/drain region on the semiconductor substrate on both sides of the pattern; and forming a contact plug on the semiconductor substrate of the source/drain region, and then forming a metal interconnection on top of the contact plug.
Patent KR-20000051250-A (KR)
Inventor: BAE SEONG YONG
IPC: H04L12/26
Filed: 1999-01-20
Abstract: PURPOSE: A method for examining an advanced intelligent network(AIN) protocol is provided to lead finite user requirements with labeled transition system(LTS) forms from infinite user requirements, to examine integrity and security of specifications. CONSTITUTION: A method for examining an advanced intelligent network(AIN) protocol comprises the steps of: reading an initial state, an action, a next state from a labeled transition system(LTS) detailed file, and generating LTS components composed of actions according to the initial state and next states; making a user select functions of a security examination, a status reachability examination, a determination examination, and a live lock examination; if the selected functions are the security/the state reachability/an action reachability examinations, configuring blocks to generate bit arrangements and counter arrangements as variable numbers of the blocks and LTS state numbers, and generating an edge-labeled directed graph presenting correlations of each variable by referring to the blocks; updating the initialized bit arrangements and the counter arrangements; examining whether an infinite repeating state for repeating subsets or deadlocks exists, and identifying whether an inputting and an outputting for a certain state are performed according to requirements, then identifying whether different continuous actions are generated; if the user selects the function of the determination examination, identifying whether different next states exist to output a result; and if the user selects the function of the live lock examination, examining every transition for starting from an initial state.
Patent KR-20000051254-A (KR)
Inventor: NA HYEONG SOO
IPC: H04B7/14
Filed: 1999-01-20
Abstract: PURPOSE: A repeater monitoring system is provided to monitor and analyze quality of radio frequency and call to manage and operate base stations remotely and intensively based on channel analyzing of a mobile station. CONSTITUTION: A repeater monitoring system based on channel analyzing of a mobile station comprises the parts of: a mobile station(12) that analyzes radio frequency transmitted by a repeater based on channel analyzing, so it outputs data of radio frequency quality; a repeater monitoring terminal(11) that accumulates, analyzes, and sends data of call quality by connecting call to a specific number; a repeater management terminal(17) that confirms operation state of a repeater by receiving data of radio frequency quality and call quality, and then informs it to an operator.
Patent KR-20000051356-A (KR)
Inventor: SHIN YEONG MIN
IPC: H03K19/0175
Filed: 1999-01-21
Abstract: PURPOSE: An input-output circuit(201) of a semiconductor interfacing signals selectively is provided to reduce the power consumption of a semiconductor. CONSTITUTION: An input-output circuit(201) of a semiconductor interfacing signals selectively includes the first pad(211) that authorizes a specific reference voltage(Vref). The second pad(212) authorizes external signals(IN1). A voltage comparator(221), whose input terminal is connected to the first and second pads(211,212) and control terminal to the selective signals(SEL), compares the level of the reference voltage(Vref) with that of the external signals(IN1) in response to the selective signals(SEL). Buffer(231, 241) buffers the external signals(IN1) in response to the selective signals(SEL) while connected to the second pad(212). A switching circuit outputs one of the outputs of the voltage comparator(221) and the buffers(231,241) in response to the selective signals(SEL).
Patent KR-20000055381-A (KR)
Inventor: JEONG MAN SU
IPC: H04Q3/00
Filed: 1999-02-05
Abstract: PURPOSE: An apparatus for exchanging signals in an internet protocol(IP) switching system is provided to easily set up a system on an IP network by driving a call control system with a centralized system and a distributed system, and to prevent deterioration of speech quality caused when terminals are increased in the call control system using the distributed system. CONSTITUTION: A network has a private multimedia system for connecting an office line with a local area network. The multimedia system comprises a look-up table(308), a task manager(309), a call processor/agent(307), and a call converter(306). The look-up table stores an internet protocol(IP) address for group numbers of each office line number, extension numbers of protocol interfaces, and call converting processes. The task manager registers call control information in the look-up table to broadcast the information, and converts a task into a voice speech when a call controlling process is completed. The call processor/agent supports office line sharing in groups and information sharing between extensions with a distributed call control system. The call processor/agent performs a telephone switching function and a gateway function with an office line signal, and buffers status information of a self terminal performing voice communication. The call processor/agent maintains quality of the voice communication. The call converter interfaces an H.323 terminal to a self protocol to support communication between the groups, and interfaces the self terminal to the H.323 protocol to support internet phone communication.
Patent KR-20000060118-A (KR)
Inventor: KWON SEOK HYEONG
IPC: H04W36/12
Filed: 1999-03-12
Abstract: PURPOSE: A method for retrieving a target frequency of a mobile station in a cellular mobile telecommunication system is provided to perform inter-frequency handoff processes, by minimizing retrieval starting points, retrieval time, and retrieval frequencies of the mobile station. CONSTITUTION: A base station controller(BSC) receives a pilot strength measurement message(PSMM) from a mobile station(MS) through at least one base transceiver station(BTS). The BSC decides whether the MS is located in a boundary or whether a forward radio speech channel of the MS is inferior. If so, the BSC directs the MS to retrieve a handoff target frequency. The MS is identified whether the MS is in a state of satisfying a retrieval suspending condition. If so, the BSC directs the MS to suspend the retrieving process. The MS retrieves the target frequency by the BSC, and informs the BSC of a retrieving result. The BSC refers to the result to perform an inter-frequency handoff process.
Patent KR-19990078383-A (KR)
Title: 트렌치 커패시터내의 매립형 스트랩을 조절하는 장치 및 방법
IPC: H01L27/108
Filed: 1999-03-30
Abstract: 본 발명은 트렌치 커패시터의 매립형 스트랩의 두께와 높이에서의 편차를 감소시키는 방법에 관한 것이다.  두께와 높이에서의 편차를 감소시키는 것은 트렌치내의 폴리를 매립형 스트랩의 최상부까지 리세싱하여 매립형 스트랩의 최상부를 한정함으로써 가능하다.  다음으로, 칼라는 매립형 스트랩의 기저부를 한정하기 위해 최상부 표면 하부로 리세싱된다.  폴리층의 트렌치의 측벽, 폴리 트렌치 충진된 최상부 표면 및 칼라 상부의 리세싱된 영역을 라이닝하기 위해 증착된다.  다음으로, 폴리 트렌치 충진의 측벽 및 최상부 표면으로부터 과도한 폴리층을 제거하기 위해 에칭이 사용되는데, 충진된 칼라 상부의 리세싱된 영역은 남겨두어 매립형 스트랩을 형성한다.  에칭은 수평 및 수직 방향에서 폴리를 거의 동일한 속도로 제거한다.
Patent KR-20000066968-A (KR)
Inventor: KIM WAN SIK
IPC: H01L21/31
Filed: 1999-04-22
Abstract: PURPOSE: A method for manufacturing an interlayer dielectric is provided to simplify a manufacturing process and to prevent a characteristic of a device from varying, by eliminating a void generated between lower interconnections separated a short distance from each other, and by densifying and planarizing the interlayer dielectric at a low temperature. CONSTITUTION: A plurality of interconnections(33) are formed within a substrate(31). A passivation layer is formed on the substrate to cover the interconnections. A liquid insulating material is applied on the passivation layer to form an interlayer dielectric(37). The interlayer dielectric is pressurized to be a liquid state while a solution is heated, so that the surface of the interlayer dielectric is planarized and the interlayer dielectric is densified.
Patent KR-20000067589-A (KR)
Inventor: LIM CHUN BONG
IPC: G01N3/38
Filed: 1999-04-29
Abstract: PURPOSE: A tester for torsional rotation is provided to easily control tension force applied to a specimen wire. CONSTITUTION: A tester for torsional rotation includes a base frame(20) having a control plate(42), a driving motor(21) horizontally installed in one side of the upper part of the base frame, a rotating chuck(22) combined with a motor shaft(21a) horizontally extended from the driving motor, a fixing chuck(24) installed relatively movable to the rotating chuck and fixing a specimen wire(23) with the rotary chuck, an air cylinder(25) horizontally and movably installed between the rotating chuck and the fixing chuck, an element for sensing rotational frequency(29) formed with a plurality of contacting points(27) on the outer peripheral surface of a chuck driver(22a) of the rotating chuck at same intervals and a rotation sensor(28) sensing the rotating shift of the contacting points, and a counter(30) displaying torsional rotation value of the current specimen wire by output sensed from the element for sensing rotational frequency.
Patent KR-20000073346-A (KR)
Inventor: KIM DAE WON
IPC: G01N15/08
Filed: 1999-05-10
Abstract: PURPOSE: A simulation device for a filter test is provided to test a filter by making up an atmosphere similar to a semiconductor spot. CONSTITUTION: Air filtered through a sample filter is sampled in a lower end of the sample filter(100). Herein, the air collection for sampling is accomplished through a sample line connected to a second inlet hole(16b) formed on one side of a chamber(12). The air before and after passed through the sample filter is compared. Then, the filtering ability of the filter related to particle, metal, ion, temperature, humidity, wind force and son on is tested.
Patent KR-20000073502-A (KR)
Inventor: PARK TAE HUI
IPC: H01L27/06
Filed: 1999-05-11
Abstract: PURPOSE: A method for manufacturing a contact of a multi-layered wiring is provided to reduce resistance by improving a profile of an interconnection layer near a contact. CONSTITUTION: An insulating layer is evaporated on a lower first conductive layer. The insulating layer is patterned to form a contact hole exposing a part of the first conductive layer. A barrier metal layer is formed on the entire structure having the contact hole. A metal layer of a plug and a buffer insulating layer are consecutively evaporated. A photoresist layer is applied on the buffer insulating layer. The photoresist layer is patterned to form a photoresist layer pattern on the contact hole and buffer insulating layer. The buffer insulating layer is isotropically dry-etched by using the photoresist layer pattern as a mask to form a buffer insulating layer pattern of a taper shape. The buffer insulating layer pattern and the metal layer for a plug are etched-back to form a plug of which the surface is in parallel with the surface of the barrier metal layer.
Patent KR-20000074743-A (KR)
Inventor: RYU JE UK
IPC: F22B1/18
Filed: 1999-05-25
Abstract: PURPOSE: An air supply duct is provided to accomplish a complete combustion and stability of flame by allowing oxygen concentration to be uniform at a sectional surface of an entrance of a duct burner. CONSTITUTION: An air supply duct(5) is branched into left and right directions at an upper rear portion of an inlet duct(4) connected to an exhaust duct(3) of a gas turbine(2). An end portion of the air supply duct penetrates through left and right surfaces of the inlet duct, respectively, in such a manner that the depth of the end portion penetrating the inlet duct is 1/8 of a width of the inlet duct. The end portions of the air supply duct are arranged alternately, facing with each other.
Patent KR-20000005835-A (KR)
Inventor: TAMATZMASARO
IPC: H01L21/66
Filed: 1999-06-02
Abstract: PURPOSE: Silicon single crystal wafer for device suppressed of forming grow-in defect is provided to process silicon single crystal bar raised with czochralski method by doping nitrogen. CONSTITUTION: Manufacturing process of silicon single crystal wafer consisted of doping silicon single crystal wafer raised silicon single crystal bar with controlling cooling rate over 2.3°C/min at 1150°C-1080°C and then processing to provide silicon single crystal wafer.
Patent KR-20000005924-A (KR)
Inventor: KIMECREIGBI
IPC: C09C3/06
Filed: 1999-06-04
Abstract: PURPOSE: The metal pigment paste for aqueous coating composition useful as a metal coating for automobiles, is provided which has an improved water resisting quality. CONSTITUTION: A pigment having the corrosion resistance containing zinc cation, molybdate anion and phosphate anion is dispersed in propylene glycol monomethyl ether. The disperse solution is added in a mixer containing alumium paste to give 10 weight % of a pigment for the alunium, followed by agitation of the compound for 80 hours to give the uniformed paste.
Patent KR-20010001565-A (KR)
Inventor: KIM SANG GUK
IPC: G01B7/28
Filed: 1999-06-05
Abstract: PURPOSE: An apparatus and a method for driving a scanning probe are provided to simultaneously performing scanning operation of each scanning probe at high speed by controlling operation of each scanning probe. CONSTITUTION: An apparatus for driving a scanning probe includes a laser source(100); a reference frequency generator(200) for generating a reference frequency components; a scanning probe part(300) including a cantilever(320), a tip(310) formed in a free edge of the cantilever and communicated with a surface bending of measurement sample, a thin film type actuator(340) for controlling the driving of the cantilever, and a bulk type actuator(330) driven by the driving voltage of the reference frequency for reflecting the laser radiated from the laser source; a light detecting part(400) detecting a laser beam from the scanning probe part for generating a detecting signal; and a position control operating part(500) receiving the detecting signal and the reference frequency for controlling the driving power supply of the thin film type actuator to control the displacement.
Patent KR-20000006116-A (KR)
Inventor: GIKUCHI SHUICHI
IPC: G11B33/04
Filed: 1999-06-11
Abstract: PURPOSE: Disk media collection case is provided to overcome the limitation of the conventional disk media collection case, which is the possibility to break or bent by vibration and impact when the case is transferred from one place to another place. CONSTITUTION: Disk media collection case comprises lower plate element having disk shape and smaller diameter than the diameter of the disk media, stacking column fixing on the center of the lower plate element in erect state, protection cover element having cone shape and placed at the lower plate element, cap fixing on the lower plate element through the protection cover element and the stacking column, insertion hole for column, and flange section provided at the edge section of the stacking column by placing the insertion hole on the lower plate element.