baber/WOPTO huggingface dataset:
Patent KR-20130080265-A (KR)
Title: Converter using solid condenser
Inventor: AOH KYUNG WON
IPC: H02M7/155
Filed: 2012-01-04
Abstract: PURPOSE: A converter using a solid condenser is provided to convert a nonsmooth state into a smooth state by controlling a high speed pulse width modulation, thereby lengthening the life of the converter. CONSTITUTION: A converter (20) comprises a first side circuit unit (200) and a second side circuit unit (240). The first side circuit unit (200) rectifies an input AC voltage to a first DC voltage, and outputs a first AC voltage by switching the first DC voltage. The second side circuit unit (240) is equipped with a transformer which transforms the first AC voltage into a second AC voltage, and outputs the second AC voltage. The second side circuit unit (240) includes a second rectifying unit and a smoothing circuit (244). The second rectifying unit (242) rectifies the second AC voltage which is output from the transformer (220). The smoothing circuit (244) comprises a solid condenser, and outputs the second DC voltage by smoothing the rectified second AC voltage. [Reference numerals] (201) Filter unit; (202) First rectifying unit; (204) PWM generating device; (206) Automatic voltage control unit; (208) Detection circuit unit; (220) Transformer; (242) Second rectifying unit; (244) Smoothing circuit; (250) Fixed current circuit; (260) Connector
Patent KR-20120079821-A (KR)
Title: Method for assigning terminal identifier, base station and terminal in mobile communication system
Inventor: CHA JAE SUN
IPC: H04W88/08
Filed: 2012-01-05
Abstract: PURPOSE: A terminal identifier allocating method, a base station supporting the same, and a terminal in a mobile communication system are provided to allocate terminal identifiers about a terminal. CONSTITUTION: A base station allocates a terminal identifier to a terminal(S400). The base station generates an error control bit sequence for a control message. The control message includes resource allocation information. The base station masks the error control bit sequence to the predetermined mask. The base station transmits the control message to the terminal(S410). The control message includes the masked error control bit sequence.
Patent KR-20130080989-A (KR)
Title: Liquid cargo tank
Inventor: YOON JUNG WOOK
IPC: F17C3/04
Filed: 2012-01-06
Abstract: PURPOSE: A liquid storage tank is provided to prevent sloshing which is generated in a hold by including a porous filling material inside the hold. CONSTITUTION: A liquid storage tank comprises a hold (100), a pipe (120), and a filling material (130). The hold is formed to have an internal space (110) in which liquid is loaded. The liquid which is loaded in the hold is transferred through a pipe. The filling material is provided in the internal space of the hold, and absorbs the liquid which is loaded in the hold.
Patent KR-20130081434-A (KR)
Title: An exercising device for correcting spine
Inventor: KIM MIN SANG
IPC: A63B23/035
Filed: 2012-01-09
Abstract: PURPOSE: Sport equipment for a spine correction is provided to reduce a production cost and enable an easy installation and an easy assembly by being arranged in a simple structure without a separate complex additional device. CONSTITUTION: Sport equipment for a spine correction includes a base frame member (10); a horizontal movement handle member (20) which is combined with the one end of the base frame member and is gripped by hand; and a knee supporting member (30) which is arranged in the other end of the base frame member and is supported by a knee toward the horizontal movement handle member. The horizontal movement handle member is combined with the one end of the base frame member in order to be selectively rotatable at multiple designated angles in a vertical direction.
Patent KR-20130081514-A (KR)
Title: Mobile terminal
Inventor: LEE YONG HO
IPC: H04B1/38
Filed: 2012-01-09
Abstract: PURPOSE: A mobile terminal is provided to charge a battery by using the heat generated at the inside of a terminal body while the mobile terminal is in operation. CONSTITUTION: A battery is mounted on a terminal body. A thermoelectric element (400) is mounted on the terminal body. The thermoelectric element converts the heat generated from the terminal body into an electric signal. A connection part electrically connects the thermoelectric element and the battery in order to deliver the electric signal to the battery and charge the battery. The heat is released from the battery placed at the inside of the terminal body.
Patent KR-20130081574-A (KR)
Title: Drilling equipment consecutively supplying device and drillship having the supplying device
Inventor: LEE JAE HOON
IPC: E21B17/01
Filed: 2012-01-09
Abstract: PURPOSE: An apparatus for continuously supplying a drilling device and a drill ship with the same are provided to rapidly supply the drilling device to a drilling tower. CONSTITUTION: An apparatus for continuously supplying a drilling device comprises a first transfer unit, a second transfer unit, and a third transfer unit. The first transfer unit is placed at the side of a moon pool (23) that a drilling tower (21) is placed on. The first transfer unit transfers a plurality of the drilling devices (15) loaded on a space (13). The second transfer unit is installed to move up and down in the space, and lift the drilling devices. The third transfer unit is installed in the drilling tower, and pulls up the end of the drilling device so that the drilling device is vertically placed on the moon pool.
Patent KR-20130089903-A (KR)
Title: System for platform system based on network
Inventor: KANG SAM SEOK
IPC: G06F15/16
Filed: 2012-01-11
Abstract: PURPOSE: A network based platform system is provided to reduce development period and development cost by borrowing a function requiring long development time when developing an application from a framework provided by an individual or an enterprise. CONSTITUTION: A framework providing server (110) provides user interface (UI) screen identification codes with a specific function to be installed in a smart phone application developed based on an application framework and a store server distributes the application. A client terminal (120) receives the smart phone application framework from the framework providing server, generates the smart phone application according to key input of a developer and installs a specific function implemented to the smart phone application framework to the smart phone application. [Reference numerals] (130) Store server; (AA) Connection; (BB) Download; (CC) Calling; (DD) Displaying; (EE) Game; (FF) Registering
Patent KR-20130083179-A (KR)
Title: Method for providing augmented reality and terminal supporting the same
Inventor: KIM HEE WOON
IPC: H04B1/40
Filed: 2012-01-12
Abstract: PURPOSE: An augmented reality supplying method and a terminal supporting the same are provided to supply augmented reality by arranging and displaying a virtual object on a real surface. CONSTITUTION: A control unit of a terminal accesses a storage unit and obtains a virtual object image and a preview image (320). The control unit analyzes the color, the edge, or the shadow of the preview image (330). If a surface which arranges the virtual object is recognized in the preview image, the control unit recognizes whether the virtual object is arranged on the recognized surface (340,350). The control unit synthesizes the virtual object image with the preview image (360). The control unit outputs a synthesis image (370). [Reference numerals] (310) Receive an augmented reality request; (320) Obtain a preview image and a virtual object; (330) Analyze at least one of the color, the edge, or the shadow of the preview image; (340) Is a surface recognized?; (350) Is it possible to arrange a virtual object on the recognized?; (355) Change the virtual object to be arranged; (360) Synthesize a virtual object image and a preview image; (370) Print a synthesis image; (AA) Start; (BB) Finish
Patent KR-20130084770-A (KR)
Title: Multi-using underwater cleaning robot
Inventor: KIM CHANG HO
IPC: B25J5/00
Filed: 2012-01-18
Abstract: PURPOSE: A multipurpose under water cleaning robot is provided to prevent damage or malfunction of the multipurpose under water cleaning robot which is caused by foreign substances which are spread on a river bed or by crushed substances which is attached to or put into a deposition suction unit during a dredging work. CONSTITUTION: A multipurpose under water cleaning robot comprises a body, a running unit, a first motor, a suction hopper (30), a discharge tube (40), a crushing screw (50), a second motor, and a hydraulic pressure generating unit (70). The discharge tube is connected to the suction hopper, and transfers inhaled depositions to the outside. The crushing screw is installed inside the suction hopper, and crushes the depositions. The second motor drives the crushing screw. The hydraulic pressure generating unit uses fluid pressure to operate the first motor and the second motor, and is configured to be remotely controllable.
Patent KR-20130095360-A (KR)
Title: Bulletproof protect panal
Inventor: HAN JOO YEOP
IPC: F41H5/04
Filed: 2012-02-20
Abstract: PURPOSE: A bulletproof panel is provided to reduce the impact on a ceramic hardened body, which is generated by shooting, with a method transmitting the impact to an adjacent ceramic hardened body and to effectively disperse the impact by including a deformation space for the ceramic hardened body. CONSTITUTION: A flexible bulletproof panel (10) includes an impact absorption layer (110) absorbing external impact; and a plurality of ceramic hardened bodies (103) arranged on one surface of the impact absorption layer. Each of the ceramic hardened bodies includes a supporting wall (105) forming a joining space for being joined with other ceramic hardened body; and a ceramic hardened body layer (100) including lateral walls (106) protruding from both lateral end portions of the supporting wall. A lateral wall of the ceramic hardened body is inserted into the joining space while a deformation space (S2) is formed in the joining space of the other ceramic hardened body so that the ceramic hardened body layer is formed.
Patent KR-20130096095-A (KR)
Title: Light emitting device package and lighting systme having thereof
Inventor: LEE DONG YONG
IPC: H01L33/62
Filed: 2012-02-21
Abstract: PURPOSE: A light emitting device package and a lighting system including the same are provided to prevent the failure of the package by extending a gap part arranged between adjacent lead frames to a space between a side surface of the lead frame and a side surface of a body. CONSTITUTION: A body includes a cavity whose upper side is open. A first lead frame (21) is arranged in the cavity and is adjacent to a first side surface of the body. A second lead frame (31) is arranged in the cavity and is adjacent to a second side surface of the body. A light emitting chip is arranged on one of the first lead frame and the second lead frame arranged in the cavity. A molding member is formed in the cavity. A gap part (15) is arranged between the first lead frame and the second lead frame. A first protection part is extended from the gap part to a space between the first lead frame and a third side surface of the body.
Patent KR-20130096939-A (KR)
Title: Lubricant structure for clutch
Inventor: KIM CHEOL JIN
IPC: F16H57/04
Filed: 2012-02-23
Abstract: PURPOSE: A lubrication structure for a clutch is provided to improve the degree of design freedom for a clutch and manufacture the clutch in order to be compact by forming a lubricating oil passage in a piston of the clutch. CONSTITUTION: A lubrication structure for a clutch comprises a retainer (R), a clutch hub (11), a disc unit (12), a piston (14), and a lubricating oil passage (14a). The clutch hub is selectively connected to the retainer. A plurality of discs individually connected to the retainer and the clutch hub is alternately arranged so that the disc unit is comprised. The piston closely attaches discs by compressing the disc unit when a hydraulic fluid is supplied from the outside and transmits the power between the retainer and the clutch hub. The lubricating oil passage connects a balance chamber (S2) of the piston and the disc unit and supplies lubricating oil accommodated in the balance chamber to the disc unit.
Patent KR-20130096998-A (KR)
Inventor: YOO JEONG MO
IPC: C04B35/82
Filed: 2012-02-23
Abstract: PURPOSE: Transparent dielectric ceramics are provided to maintain high transparency, and to offer excellent dielectric properties by containing a glass composition or a transparent synthetic resin composition, and barium titanate (BaTiO3). CONSTITUTION: Transparent dielectric ceramics using barium titanate contains a glass composition or a transparent synthetic resin composition, and the barium titanate (BaTiO3). The glass composition or the transparent synthetic resin composition is a base material, and 0.1-30 parts by weight of barium titanate is mixed with 100 parts by weight of the glass composition or the transparent synthetic resin composition. The barium titanate is powder with a nanoparticle diameter. A production method of the transparent dielectric ceramics using barium titanate comprises the following steps: mixing 100 parts by weight of glass composition or transparent synthetic resin composition powder with 0.1-30 parts by weight of barium titanate in a nanoparticle diameter by ball milling; and plasticizing the mixed powder at 500-1,500°C.
Patent KR-20120107851-A (KR)
Title: Method for supplying fuel for high pressure natural gas injection engine
Inventor: JUNG SEUNG KYO
IPC: F02M31/20
Filed: 2012-02-28
Abstract: PURPOSE: A fuel supply system for a high-pressure natural gas injection engine is provided to consume flash gas or residual fuel as the fuel for a dual fuel engine. CONSTITUTION: A fuel supply system for a high-pressure natural gas injection engine comprises a BOG(Boil Off Gas) compression unit(13), a re-liquefying device(20), and a high pressure pump(33). The BOG(Boil Off Gas) compression unit comprises one or more BOG compressors(14) and one or more intermediate coolers(15). The intermediate cooler cools the Bog compressed in the BOG compressor. The re-liquefying device re-liquefies the BOG using a refrigerant freezing cycle. A heat source heated in the freezing cycle is heat exchanged with LBOG(Liquefied Boil Off Gas) compressed in the high pressure pump.
Patent KR-20130099305-A (KR)
Title: The system cabinet for food ferment
Inventor: HAN YOUNG KYENG
IPC: A23B7/10
Filed: 2012-02-29
Abstract: PURPOSE: A system cabinet for fermented food is provided to control or minimize the contact of a working space for processing the fermented food with a worker, and to control the air conditioning. CONSTITUTION: A mechanical chamber (40) is installed under a cabinet (1) for cooling and vacuuming a working chamber (20). A transparent working window (22) for users to see the inside of the working chamber is installed. A pair of waterproof working gloves (24) are sealed and installed from the outside to the inside of the working window. A preparation chamber (10) and a storage chamber are installed on the lower center of the working chamber. An air conditioner installed inside the mechanical chamber absorbs, neutralizes, and removes carbon acid gas and fermentation gas generated from the inside of the cabinet using a filter. Two internal working plates (25) are installed to divide the preparation chamber and the storage chamber on the center, and the working chamber on the upper side. The working plates are detachable in the inside of the cabinet.
Patent KR-20130099710-A (KR)
Title: Method for metal patterning
Inventor: LIM HYUN EUI
IPC: C23F1/02
Filed: 2012-02-29
Abstract: PURPOSE: A metal patterning method is provided to avoid the usage of toxic materials utilized for forming and removing a mask, thereby obtaining an eco-friendly and economic effect. CONSTITUTION: A metal patterning method includes the following steps of: forming a metal layer made of metal on a board (S1); forming an oxide layer partially on the surface of the metal layer by spreading polymer colloidal particles and treating oxygen plasma on the metal layer (S2); and removing an exposed portion of the metal layer with etching solution without forming an oxide layer by using a difference of an etching rate of the metal layer and the oxide layer (S3). [Reference numerals] (S1) Step of forming a metal layer; (S2) Step of forming an oxide layer; (S3) Step of removing an exposed portion
Patent KR-20130103903-A (KR)
Title: Pad of palm trees for steel product having high friction coefficient
Inventor: KIM JONG WOO
IPC: B65D81/127
Filed: 2012-03-12
Abstract: PURPOSE: An environment-friendly protective pad for steel products is provided to prevent the rolling of a ship and to protect the contact surface of products. CONSTITUTION: A pad for a steel product uses a coconut tree pad. The coconut trees pad is made of coconut trees or the same material as the coconut trees. A mixing agent or an adhesive is applied on the pad to increase a frictional coefficient. [Reference numerals] (AA) Steal coil; (BB) Palm tree pad
Patent KR-20130104467-A (KR)
Title: Ice cold and warmth water purifier and manufacturing method of ice manufacture pipe there of
Inventor: PARK HAN GUK
IPC: F25C5/08
Filed: 2012-03-14
Abstract: PURPOSE: An ice-cold and warm water purifier and an ice-making pipe manufacturing method thereof are provided to reduce power consumption and improve de-icing performance. CONSTITUTION: An ice cold and warm water purifier comprises an ice-making pipe (110), a refrigerant pipe (120), a compressor (130), a condenser (140), and a heater. The ice-making pipe comprises a plurality of immersion pipes and produces ice by being supplied with refrigerant. The refrigerant pipe is connected to the ice-making pipe. The compressor is connected to the refrigerant pipe to compress refrigerant at high temperatures and with a high pressure. The condenser heat-exchanges the refrigerant compressed in the compressor. The heater de-ices an immersion pipe.
Patent KR-20120097467-A (KR)
Title: 모든 술과 혈액속에 함유되는 요소성분과 같은 비중이 가벼운 독성 성분을 제거하여 혈액을 깨끗하게 정화시키는 공법과 우유를 가공하는 공법과 사람이 먹는 모든 음료와 모든 식품과 모든 음식을 가공하는 공법과 과 민물을 바닷물로 제조하는 공법과  민물과 폐수 또는 소금 생산용 해수를 제조하는 공법과 술을 제조하는 공법과 모든 유체성 및 유동성 식품과 모든 기름과 식초와 음료 같은 식품을 제조하는 공법과 친환경 음식물 쓰레기 처리공법과 가스생산공법과 여기에 적용되는 건강증진용 혈액정화기 시스템
Inventor: HAN SANG KWAN
IPC: C02F1/14
Filed: 2012-03-19
Abstract: 원형 또는 각형으로 구성되는 걸름통(1)이 구비되고 걸름통(1)의 하단부 일측에는 걸름통 배출구(8)이 구비됨 함께; 
상기 걸름통 배출구(8)에는  걸름통 배출 조절밸브(7)가 구비되어 상기 걸름통(1)에 모여지는 바닷물 또는 민물의 배출량을 조절하도록 함과 함께; 
상기 걸름통(1)의 하단부와 중간 부분에는 상기 거름통(1)의 일측과 타측을 가로 질러 브러쉬(99)가 축과 결합 되어 흰지에 의해 설치되고 상기 브러쉬(99)의 축은 모터(11)와 결합 되어 상기 걸름통(1)으로 유입되는 바닷물 또는 민물을 교반하여 줌과 함께; 
상기 걸름통(1)의 상단부 둘레에는 1차 걸름칸(5)과 2차 걸름칸(4)과 3차걸름칸(3)이 구비되고 상기 1,2,3,차 걸름칸(3,4,5)의 외주면 둘레는 전체에는 4차 수집통(2)이 구비되고 상기 4차 수집통의 하부에는 4차 수집통 배출구(33)가 구성됨과 함께; 
상기 4차 수집통 배출구(33)의 하부에는 최종적으로 수집된 바닷물의 부산물이나 민물로부터 수집된 부산물을 수집하는 최종 수집통(55)이 구성됨과 함께; 
상기 걸름통(1)의 상단부 둘레에는 일반 전력 또는 태양광 수집판(58)으로 부터 수집된 전기를 열로 변환하여 주는 열판(56)이 상기 태양광 수집판(56)과 결합 되어 설치됨과 함께; 
상기 열판(56)은 상기 걸름칸(3,4,5)의 상부를 통과하는 민물 또는 바닷물로부터 이탈되어 나온 오염물질 성분과 바닷물 성분의 온도를 높여주어 가스를 발생시키는 작용을 발휘함과 함께; 
상기 1,2,3,4차 수집통(2)의 상부 둘레에는 상기 열판(56)의 가열에 의해 발생 되는 가스를 수집할 수 있도록 밀폐 구조의 가스 수집판(73)이 설치되고 상기 가스수집판(73)의 상부에는 가스 수집통(75)이 구성됨과 함께; 
 상기 걸름통(1)의 상부에는 통공이 구성되어 있는 압축통(76)이 구비되고 상기 압축통(76)의 외주면과 내주면에는 통공이 구성되어 있는 필터 수납칸(22)이 구비되고 상기 필터 수납칸(22)에는 모래 자갈이나 중공사막이나 스펀지나 부직포와 같은 필터부재(88)가 수납되어 압축통(76)이 완성됨과 함께; 
상기 압축통(76)의 내부에는 민물이나 바닷물을 유입시켜주는 유입파이프(9)가 구비되고 상기 유입파이프(9)의 상부에는 바닷물 또는 민물 조절밸브(77)가 구비됨과 함께; 
상기 유입파이프(9)의 중간에는 가압펌프(78)가 구비되어  바닷물 또는 민물을 상기 압축통(76)으로 민물이나 바닷물을 강제로 유입시켜줌과 함께; 
상기 걸름통(1)과 상기 압축통(76)의 상부에는 밀폐 구조의 가스 수집판(74)이 구성되고 상기 가스 수집판(74)의 상부에는 가스 수집통(75)이 구성되어 상기 압축통(76)에서 발생 되는 압력과 상기 거름통(1)의 내부에 구성되어 있는 브러쉬(11)의 교반작용에 의해 발생 되는 가스를 수집함과 함께;   
상기 압축통(76)을 통과한 민물이나 바닷물들이 상기 1,2,3차 걸름칸(3,4,5)의 상부로 소량의 바닷물들이 넘쳐 흐르도록 상기 걸름통 배출조절밸브(7)를 조절하여 상기 걸름통 배출구(8)를 통하여 배출되는 민물 또는 바닷물의 배출량을 조절함과 동시에 상기 브러쉬(11)를 가동하여 민물에 결합 된 오염물질분자들이 민물로부터 이탈 되어 나오게 하거나 바닷물과 결합 된 바닷물 성분과 소금 성분들이 바닷물로부터 이탈되어 나오도록 물질마찰작용과 물질폭발작용이 발생시킴과 함께; 
상기 브러쉬(11)의 작용에 의해 발생되는 물질마찰작용과 물질폭발작용에 의해 민물과 결합 된 오염물질분자들과 바닷물과 결합 된 바닷물성분과 소금성분들이 중력의 작용에 의해 걸름통(1)의 상부로 부상되도록 유입파이프(9)를 통하여 유입되는 유입되는 민물 또는 바닷물의 유입량을 100%를 상기 걸름통(1)으로 유입시킴과 동시에 상기 걸름통(1)의 하부에 구성되어 있는 걸름통 배출구(8)와 결합 되어 있는 걸름통 배출조절밸브(7)를 조절하여 배출되는 민물 또는 바닷물의 양을 70%~99% 만을 배출시킬 때에 나머지 1%~30%의 민물 또는 바닷물이 1,2,3차 걸름칸(3,4,5)과 4차 수집통(2)으로 모여지도록 하는 방법을 이용하여  민물에 함유된 오염물질들을 추출하여 오염된 민물을 깨끗하게 정수함과 동시에 민물에서 이탈되어 나온 오염물질분자들을 수집하여 에너지로 사용하는 방법과 바닷물분자에서 이탈되어 나온 깨끗한 바닷물 분자를 식수로 사용하거나 또는 선박에 채워지는 밸러스트 수로 사용하거나 또는 바닷물 분자로부터 이탈되어 나온 바닷물 성분과 소금성분을 수집하여 소금 제조용 해수로 사용하거나 또는 소금 대용 식품으로 사용하거나 또는  먹을 수 있는 식염수로 사용하거나 또는 바닷물을 교반하여 수집한 바닷물 성분을 민물에 섞어서 민물을 바닷물로 제조하거나 또는 민물 또는 바닷물에 함유된 오염물질을 이용하여 에너지를 얻는 것을 특징으로 하는 바닷물을 정수하여 선박에 채워지는 밸러스트 수를 제조하는 친환경공법과 바닷물을 정수함과 동시에 바닷물에 함유된 물질을 추출하여 에너지를 생산하는 친환경 공법과 오염된 바닷물을 정수하여 소금 제조용 해수를 제조하는 친환경 공법과 바닷물을 정수하여 소금 대용 식품으로 제조하는 친환경 공법과 바닷물을 먹을 수 있는 식염수로 제조하는 친환경 공법과 이 공법을 이용하여 수집한 응축된 바닷물 성분을 이용하여 민물을 바닷물로 제조하는 친환경 공법과 민물 또는 바닷물을 가공하여 에너지를 얻는 공법과 술 속에 함유된 비중이 가벼운 유해물질을 제거하는 공법과 유동성 식품과 우유와 식초와 음료 속에 함유된 유해물질을 제거하는 공법과 여기에 적용되는 정수장치에 관한 발명이다.
Patent KR-20120034096-A (KR)
Title: Nonvolatile semiconductor memory device, and method for deleting data from the same
Inventor: OSAME MITSUAKI
IPC: H01L27/115
Filed: 2012-03-20
Abstract: PURPOSE: A nonvolatile semiconductor memory device and a method for deleting data from the same are provided to reduce manufacturing costs without having a process of separating a P well part from a logic part and a memory cell since the data about a non-volatile memory device is removed from NAND type cells one by one. CONSTITUTION: An underlying insulation film(12) is formed on a substrate(10) having an insulating surface. A semiconductor film(14) is formed on the underlying insulation film. A first insulating layer(16) is formed on the semiconductor film. A floating gate(20) is formed on the first insulating layer. A second insulating layer(22) is formed on the floating gate. A control gate(24) is formed on the second insulating layer.
Patent KR-20130021316-A (KR)
Title: The ceiling closing equipment using a standardize sheet panel, ceiling closing installation method using the same
Inventor: PARK HYUN YONG
IPC: E04B9/06
Filed: 2012-03-20
Abstract: PURPOSE: A ceiling finishing apparatus using a standardized sheet panel is provided to conveniently install a standardized sheet panel on an installation area or maintain the installed sheet panel. CONSTITUTION: A ceiling finishing apparatus using a standardized sheet panel includes multiple fixed frames(110) and a sheet panel(200). The fixed frames are installed on at least both sides of an installation object area such as a ceiling surface and includes an upper plate(111), a pair of support pieces(113) and a fixed wing(114). The pair of support pieces is arranged on an incline on the lower parts of both sides of the upper plate. The fixed wing is extended from both ends of the upper plate to the outside. The sheet panel is fixed on the fixed frame to finish the installation of the object area and includes a frame body(210) and a connection member(230). The frame body has an accommodation space. The finishing sheet finishes the lower part of the accommodation space of the frame body. The connection member is arranged on the upper side surface of the frame body to be detachably assembled to the fixed frame.