baber/WOPTO huggingface dataset:
Patent KR-20080094988-A (KR)
Title: Automobile battery output augmentation system
Inventor: PYO SANG SU
IPC: H02J7/14
Filed: 2007-04-23
Abstract: An output augmentation device of a vehicle battery is provided to perform stable charging/discharging of a condenser by having a voltage controlled condenser and removing a noise of a high frequency current. An output augmentation device of a vehicle battery includes a main condenser(10), an electric wire(20), a voltage controlled condenser(30), and a double side tape(70). A plus terminal and a minus terminal are formed on a side of the main condenser. An end of the electric wire is electrically coupled to both terminals of the main condenser. The other end of the electric wire is electrically coupled to both terminals of the vehicle battery. The voltage controlled condenser is electrically coupled to both terminals coupled to the electric wire. The double side tape is installed on a side of the main condenser. A side of the double side tape is adhered to the main condenser. The other plane of the double side tape is adhered to a side of the vehicle battery. The double side tape fixes the main condenser to the vehicle battery.
Patent KR-20070050423-A (KR)
Inventor: JUNG DONG YUN
IPC: H04B1/40
Filed: 2007-04-25
Abstract: 본 발명은 이동통신 단말기용 수신기의 데이터 수신 기술에 관한 것으로, 이동통신 단말기에서 주파수를 변환하기 위해 필요한 국부 발진(Local Oscillation : LO) 신호를 송신기로부터 수신하여 사용함으로써 이동통신 단말기의 소모 전력을 감소시킬 수 있는 방안에 관한 것이다.  이동통신 서비스 분야의 데이터 량 증가 추세로 인해 이를 수용할 수 있는 대용량의 통신 시스템이 요구되고 있으며, 이에 부응하여 60GHz 대역을 사용하는 밀리미터파 대역의 WPAN(Wireless Personal Area Network)에 대한 연구가 활발히 진행되고 있다.  종래에는 Gbps급의 대용량 데이터를 수신하기 위해 수신기에서 최소 500mW 이상의 큰 전력이 요구되었다.  따라서 기존의 수신기를 이동통신용 단말기에 이용할 경우, 배터리 사용 시간이 거의 절반 수준으로 단축되는 단점이 있다.  본 발명은 종래의 이러한 단점을 극복하고자 고안되었으며, 이동통신용 단말기 응용에 적합한 100mW 이하의 저전력 60GHz 수신기를 제안한다.  본 발명에 따른 60GHz 저전력 수신기는, 국부 발진기에서 소모하는 전력이 없다는 장점이 있다. 
       
     저전력 수신기, 듀플렉서
Patent KR-20080096067-A (KR)
Title: Stack type semiconductor device package
Inventor: YIM CHOONG BIN
IPC: H01L23/12
Filed: 2007-04-26
Abstract: A stack type semiconductor device package is provided to reduce the manufacturing cost by using a substrate with a slit as a lower substrate. A stack type semiconductor device package comprises a first semiconductor device package, a second semiconductor device package, and a stack type solder ball(160b). The first semiconductor device includes at least one slit, and a first substrate(120a) with a first and second surfaces; a first semiconductor device(110a) mounted on the first surface; and a first bonding wire(135a) connecting a first bonding finger(126a) arranged on the second surface with a first bonding pad. The second semiconductor device package includes a second substrate(120b) with a third and forth surfaces; a second semiconductor device mounted on the third surface; a second bonding wire(135b) connecting a second bonding finger(126b) arranged on the third surface with a second bonding pad. The stack type solder ball is arranged between the first and forth surfaces in order to electrically connect the first and second semiconductor device packages.
Patent KR-20080096949-A (KR)
Title: 화장 후 남은 유골로부터의 결정체 제조방법 및 그 결정체
Inventor: KIM KYUNG YEOL
IPC: F23G1/00
Filed: 2007-04-30
Abstract: 본 발명은 화장 후 남은 유골로부터의 결정체 제조방법 및 그 결정체에 관한 것으로, 구체적으로 유골을 잘게 부수어 분쇄시킨 골분과, 붕산 또는 붕사 및 탄산나트륨을 물에 갠 골분의 비산 방지용 접착제와 혼합하고 소성하여 용융시키는 단계; 및 결정체를 형성하는 단계를 포함하는 화장 후 남은 유골로부터의 결정체 제조방법 및 그 제조된 결정체에 대한 것이다.  본 발명에 따른 화장 후 남은 유골로부터의 결정체 제조방법은 붕산 또는 붕사에 탄산나트륨을 첨가함으로써 골분의 용융점을 낮추는 촉매 기능은 물론 고온에서 붕산 또는 붕사의 증발을 억제하여 골분의 용융온도와 용융시간을 효과적으로 절감시키며, 비용면에서 고가인 이들의 추가적인 사용량을 줄일 수 있고, 제조가 간단하므로 경제적이고, 본 발명에 따른 결정체 제조방법으로 제조된 결정체는 골분의 비산 염려가 없고, 보관이 용이하며, 보석처럼 맑고 영롱한 결정체이므로 시각적인 거부감을 느끼지 않고, 자연결로에 의한 부패, 손상 및 냄새의 우려가 없으며, 형제·자매 또는 후손들이 나누어 봉안할 수 있어 형제·자매간의 연대감을 돈독하게 해줄 뿐 아니라 이동이 자유로워 조상 및 고인을 늘 가까이에서 모실 수 있어 고인과의 단절을 극복할 수 있다. 
     유골, 골분, 인산칼슘, 붕산, 붕사, 탄산나트륨, 결정체
Patent KR-20090001606-A (KR)
Title: Printing method and apparatus for text which indicating web-site
Inventor: HA KYEONG WOOK
IPC: G06Q50/00
Filed: 2007-05-03
Abstract: A method and an apparatus of printing the text showing website are provided to prevent the unnecessary access in an effective website by distinguishing an effective website in the outputted document. A method of printing the text showing website comprises: a step(110) for searching texts which show a link address of the website in printed data; a step(120) for determining whether the website, which the searched texts shows, is effective or not; a step(130) for processing the text which shows the effective website according to the decision result; and a step(150) for outputting the print data including the text.
Patent KR-20080098207-A (KR)
Title: Methods for managing user data in communication terminal
Inventor: KIM JUNG HUN
IPC: H04B1/40
Filed: 2007-05-04
Abstract: A user data managing method of a communication terminal is provided to easily search user data from a user data list classified according to various conditions. A user data managing method of a communication terminal comprises the following steps. In case the terminal receives a user data display request(215), it obtains the user data generated at a specified date(221). The user data is classified according to at least two conditions(223). A user data list for integratedly displaying the user data on one screen is displayed on at least two display windows according to each condition(225). When the user data is selected on the display windows(227), the user data is displayed on a user data table of the selected user data(229).
Patent KR-20080061228-A (KR)
Title: Dispaly device and manufacturing method thereof
Inventor: FURUTA KAORU
IPC: G02F1/1335
Filed: 2007-05-10
Abstract: A display apparatus and a manufacturing method thereof are provided to form a solar cell to a portion without influencing on the display integrally, thereby preventing the lowering of the image quality from generating. An outside substrate(1) is made of glass. An inside substrate(2) is also made of glass. A liquid crystal layer(3) is interposed between the outside substrate and the inside substrate. A back light unit(4) is installed at the outside of the inside substrate. A color filter(5) and a black matrix(6) are formed at the surface of the outside substrate opposite to the inside surface. A TFT(Thin Film Transistor) layer(8) is formed at the surface of the inside substrate opposite to the outside surface and a lower polarizing panel(9) is formed at the opposite surface of the inside substrate. A solar cell pattern(11A) is formed on the position coincided with the pattern having the black matrix and made of metal layer formed by a plasma CVD(Chemical Vapor Deposition) or a sputtering manner. A pattern is formed between the solar cell patterns and made of the same materials as the upper polarizing panel.
Patent KR-20080102514-A (KR)
Inventor: HAN JEONG WOO
IPC: H01L21/68
Filed: 2007-05-21
Abstract: 본 발명은 반도체 소자들의 피치(pitch) 변경이 요구되는 반도체 소자 이송 장치에 관한 것이다. 본 발명의 반도체 소자 이송 장치는 구동 모터에 의해 회전하는 볼 스크루(ball screw), 그 볼 스크루의 회전 운동에 따라 볼 스크루 상에서 수직 운동하는 구동판(move plate), 그 구동판의 일 면에 위쪽의 간격이 아래쪽으로 갈수록 간격이 좁아지게 수직 운동 방향으로 설치된 복수의 제1 LM 가이드들, 그 제1 LM 가이드들에 각각 고정되는 블록 가이드, 그 블록 가이드와 체결되어 제1 LM가이드 상에서 블록 가이드의 수직 운동을 제한하는 제2 LM 가이드들, 및 구동판의 수직 운동에 대응하여 제2 LM 가이드 상에서 피치 변경되는 픽커들을 포함한다. 이에 따르면, 피치의 조절이 자유로워 반도체 소자나 트레이의 종류에 변경에 따른 장비의 설정이 용이하다. 또한 피치 변경의 정밀도가 향상될 수 있으며 마모의 발생이 크게 감소되어 수명이 연장될 수 있다. 
       
     테스트 핸들러, 반도체 검사, 이송, 반도체, LM 가이드
Patent KR-20080103724-A (KR)
Title: Thread guiding apparatus for knitting machine and hosiery knitting machine
Inventor: MO JONG YEON
IPC: D04B9/46
Filed: 2007-05-25
Abstract: A thread-guiding apparatus for a knitting machine and a hosiery knitting machine are provided to freely change the supply areas of threads. A thread-guiding apparatus(100) for a knitting machine comprises the followings: the first frame(110); a thread-guiding part(122) for guiding a thread-supplying direction by being formed in one side of the thread-guiding apparatus; the second frame(120) having a rotatable structure for connecting the other side of the thread-guiding apparatus to one side of the first frame; and a restitutive spring(160) for applying elastic force to the second frame so that the angle between the first and second frames is uniformly maintained as long as the external force is not applied.
Patent KR-20090001836-A (KR)
Inventor: CHO WON KYU
IPC: G09F9/00
Filed: 2007-05-25
Abstract: A display apparatus for sales information using a surface light source is provided to enable a potential customer to recognize big sale goods or urgent sale goods easily by diversifying colors of a surface light source. A display apparatus for sales information using a surface light source comprises the following units. A frame(10) forms more than two pockets(P1,P,P3, ... Pn). A light guide plate(13) is mounted to each pocket of the frame. An article for sale/commodity information sheet(14) is illuminated by diffusion or light penetration of the light guide plate. A LED block includes a plurality of LEDs positioned on the bottom of the frame. A light controlling unit(15) applies operating voltage to the LED block. A back board is included in the frame.
Patent KR-20080105376-A (KR)
Title: Circuits for detecting short of filament
Inventor: OH BYUNG HOON
IPC: G01R31/02
Filed: 2007-05-30
Abstract: The filament single line detection circuit at the parallel filament circuit is provided to prevent the damage of the special purpose apparatus due to the filament disconnection for the safe operation. The filament single line detection circuit at the parallel filament circuit comprises The filament module(110) in which a plurality of filaments is parallely connected, the test current application portion(120) for applying the test current in the filament module, the sample-and-hold circuit(130) sampling the voltage of the filament module both ends, the microprocessor determining whether the line is connected or not(140) by calculating the resistance value of the filament module from the test current and the sampled voltage.
Patent KR-20080108826-A (KR)
Title: Nonvolatile memory devisce and fabrication method thereof
Inventor: CHOI SAM JONG
IPC: H01L27/115
Filed: 2007-06-11
Abstract: A non-volatile memory device and a manufacturing method thereof are provided to secure the reliability of device while maintaining the excellent memory hysteresis characteristic. A non-volatile memory device comprises the semiconductor substrate(100), the charge trap structure(150) and the gate(160). The charge trap structure is formed on the semiconductor substrate. The charge trap structure comprises the insulating layer and a plurality of carbon nano crystals embedded within the insulating layer. The gate is formed on the charge trap structure. The plurality of carbon nano crystals are separated from the gate and the semiconductor substrate. The tunneling insulating layer is positioned between the semiconductor substrate and the plurality of carbon nano crystals.
Patent KR-20080084524-A (KR)
Title: Snack brown seaweed and method for making of the same
Inventor: SEO MAN SEOK
IPC: A23L17/60
Filed: 2007-06-25
Abstract: A brown seaweed snack and its preparation method are provided to enable consumers to conveniently eat brown seaweed for one's snack. A brown seaweed snack comprises 98~99wt% of dried brown seaweed and 1~2wt% of a seasoning ingredient, wherein the seasoning ingredient comprises 8~12wt% of starch syrup, 18~21wt% of white sugar, 8~12wt% of a cooking-wine mixture, and 55~66wt% of water. A brown seaweed snack comprises 60~70wt% of salted brown seaweed and 30~40wt% of a seasoning ingredient, wherein the seasoning ingredient comprises 12~15wt% of oligosaccharide, 26~30wt% of white sugar, 12~15wt% of a cooking-wine mixture, and 40~50wt% of water. A method for preparing a brown seaweed snack comprises the steps of: (i) washing dried or salted brown seaweed; (ii) soaking the washed brown seaweed in fresh water for desalination; (iii) dehydrating the desalinated brown seaweed; (iv) firstly drying the dehydrated brown seaweed on a drying plate; (v) cutting the firstly dried brown seaweed; (vi) seasoning the cut brown seaweed with a seasoning ingredient; and (vii) secondly drying the seasoned brown seaweed.
Patent KR-20080001639-A (KR)
Title: Semiconductor device and semiconductor measuring device
Inventor: KISHIOKA TOSHIKI
IPC: H01L33/00
Filed: 2007-06-27
Abstract: A semiconductor device and a semiconductor measuring device are provided to simplify the structure and to reduce the cost by measuring the electrical characteristic of the semiconductor device and voltage and current of a terminal without using a kelvin contact probe and a voltage measuring unit. In a semiconductor device(210) having an external terminal(A) for connecting a load and a current drive transistor(M1) for supplying current to the load, a comparator(211) compares the voltage of the external terminal and reference voltage(Vref). An external terminal(B) is connected to the output side of the comparator. A boosting circuit boosts power voltage and supplies the boosted power voltage to the load. The boosting rate of the boosting circuit is changed on the basis of the output of the comparator.
Patent KR-20090001151-A (KR)
Inventor: JOO MAN SIC
IPC: H04N5/76
Filed: 2007-06-29
Abstract: 본 발명은 아날로그 동영상과 오디오를 입력으로 하여 디지털 동영상으로 변환하는 경우 USB(Universal Serial Bus)메모리나 메모리 칩 등의 소형 메모리를 사용하여 영상 녹화를 수행할 수 있도록 하고, 아울러 외부 기기를 통해 입력된 아날로그 오디오와 다른 기기에서 획득한 아날로그 동영상을 디지털 동영상으로 녹화하고 즉시 재생할 수 있도록 한 영상 녹화재생 장치 및 그 방법에 관한 것으로서, 이러한 본 발명은, 외부 아날로그 영상신호를 입력받기 위한 비디오 수신부와; 외부 아날로그 오디오 신호를 입력받기 위한 오디오 수신부와; 마이크나 외부 오디오 기기에서 발생한 오디오를 입력받기 위한 오디오 입력부와; 비디오 수신부와 오디오 수신부 및 오디오 입력부에서 선택적으로 입력받은 신호를 하나의 디지털 동영상 데이터로 변환하는 비디오/오디오 인코딩부와; 비디오/오디오 인코딩부에서 변환된 디지털 동영상 데이터를 저장하고, 재생 명령이 인가되면 상기 저장한 디지털 동영상 데이터를 출력하는 저장부와; 비디오/오디오 인코딩부의 데이터 변환을 제어하며, 상기 저장부의 디지털 동영상 데이터 저장과 그 저장한 데이터의 출력을 제어하고, 외부 컴퓨터와의 데이터 인터페이스를 제어하는 제어부와; 제어부의 제어에 대응하여 상기 저장부에서 출력된 디지털 동영상 데이터의 재생을 위해 퍼스널컴퓨터(PC)로 전송해주는 데이터 인터페이스기를 구비한다.
Patent KR-20090002529-A (KR)
Title: Impeller structure with reduced vibration and improved inhalation effect
Inventor: PARK CHEOL SOON
IPC: F04D29/38
Filed: 2007-06-30
Abstract: An impeller structure with reduced vibration and improved inhalation effect is provided to reduce vibration and noise caused by rotation of an impeller in an electric fan, and improve suction force. An impeller structure with reduced vibration and improved inhalation effect comprises a front side plate(100), a rear side plate(200) arranged to oppose to the front side plate; and a plurality of blades placed between the front side plate and the rear side plate. The blades forms a penetration hole(330) and a double locking protrusions(310) on the lower part, combined in a fixing groove(110) of the front side plate.
Patent KR-20080005095-A (KR)
Title: Microwave plasma processing device and gate valve for microwave plasma processing device
Inventor: MURAOKA SUNAO
IPC: H01L21/3065
Filed: 2007-07-05
Abstract: A microwave plasma processing device and a gate valve for the microwave plasma processing device are provided to decrease a discharge due to a leakage of a microwave by preventing the microwave from leaking out of a chamber while discharging a plasma. A microwave plasma processing device includes a process chamber(1), a microwave input unit, a valve member(26a), a ventilating member(24), a sealing member, and a microwave reflector(26e). The process chamber includes an opening, through which an object to be processed is received and outputted. The microwave input unit introduces a microwave into the process chamber. The valve member opens and closes the opening. The ventilating member sucks in the process chamber using a vacuum condition. When the opening is closed by the valve member, the sealing member tightly encloses an interface between an outer area from the opening and the valve member. When the opening is closed by the valve member, the microwave reflector is arranged to surround the opening and reflect the microwave, which is leaked from the opening to outside.
Patent KR-20090007062-A (KR)
Title: System and method for a micro payment using a membership card number
Inventor: KIM JUNG JU
IPC: G06Q20/40
Filed: 2007-07-13
Abstract: A micropayment system utilizing a membership card number as user authentication information and a method thereof are provided to increase a payment procedure largely by performing a procedure for checking and authenticating a user requesting payment with the membership card number. A customer credit information database(310) stores customer credit information of a mobile telecom company. A membership card number database(320) stores a membership card number provided to a customer. An authentication server(200) authenticates the user requesting payment based on payment information received from a user terminal through the Internet. A micropayment server adds a payment amount to a mobile charge of the user.
Patent KR-20090010672-A (KR)
Title: System, server and method for providing integrated study content
Inventor: KIM YANG HEE
IPC: G06Q50/20
Filed: 2007-07-24
Abstract: A system, a server, and a method for providing synthesis reference book contents synthesizing reference books according to each publishing company are provided to offer synthesis reference book contents including a plurality of reference book contents to a reference book contents service user, thereby improving the learning performance of the contents service user. If a synthesis reference book contents server receives a request for the offer of synthesis reference book contents from a user terminal(110), the synthesis reference book contents server enables the user terminal to select a specific subject and a specific publishing company out of a publishing company list and a subject list. The synthesis reference book contents server extracts specific synthesis reference book contents using the reference book content of the specific subject, which is published from the publishing company selected by the user terminal, as a base reference book content from a synthesis reference book contents database(145). The synthesis reference book contents server provides the extracted specific synthesis reference book contents to the user terminal.
Patent KR-20090011446-A (KR)
Title: Terahedral -type packing method
Inventor: KIM YOUNG MIN
IPC: B65B7/01
Filed: 2007-07-26
Abstract: An automatic packing method of a tetrahedron type is provided to reduce time for packaging by taking a product before a center sealing process. An automatic packing method of a tetrahedron type comprises the following steps of: folding both sides part which is to be sides of a rolled packing film(10); sealing both sides which is to be four corners(15) of the packing film; spreading the film to a single side; conveying and taking a product of 2 side formation; sealing the both side of the packaging film; sealing an end sealing unit(E1) lying at right angles to a center sealing unit; and cutting the end sealing unit.
Patent KR-20090013847-A (KR)
Title: 시이소를 일체로 한 자전거
Inventor: KIM JAE GON
IPC: B62M1/12
Filed: 2007-08-03
Abstract: 본 발명은 전방 프레임(1)에 연동되게 결합한 앞바퀴(2)를 좌·우를 방향을 조절하는 핸들(3)과, 자전거부(A)를 전방으로 움직이는 수단인 폐달(4)과, 자전거부(A)의 주프레임(5)과, 사람이 앉아 탈수 있는 안장(6)에 있어서, 
     상기 앞바퀴(2)의 움직임으로 같이 움직이는 제1뒷바퀴(11)와 제2뒷바퀴(12)를 연결하여 움직여 지도록 지지한 지지축(10)과, 
     상기 지지축(10)의 상단부에 결합되어 사람이 올라갈 수 있는 넓은 판형상으로 만들어진 받침프레임(20)과, 
     상기 지지축(10)과 동일 선상의 받침프레임(20)의 좌·우에 결합된 제1지지프레임(31)과 제2지지프레임(32)의 선단에서 연동되는 시이소판부재(30)와, 
     상기 시이소판부재(30)의 하단 양측에는 시이소판부재(30)의 움직임을 좌·우로 흔들리지 않게 하여주는 제1가이드축(25)과 제2가이드축(26)을 결합하며 제1가이드축(25)에는 제1탄성스프링(43)을, 제2가이드축(26)에는 제2탄성스프링(44)을 결합하여 제1지지브라켓트(27)와 제2지지브라켓트(28)에 의해 지지되어 작동되며, 상부에는 제1손잡이(41)와 제2손잡이(42)를 일체로 한 시이소부(40)와,  
     상기 시이소부(40)와 제1뒷바퀴(11), 제2뒷바퀴(12)를 연동되게 움직이는  구동부(50)와 상기 구동부(50)의 동력을 전달받는 동력전달축(60)과, 
     상기 동력전달축(60)에 각각 결합하는 제1구동 체인기어(55), 제2구동 체인기어(56), 제3구동 체인기어(57), 제4구동 체인기어(58)를 일체로 하여 제1 뒷바퀴(11), 제2뒷바퀴(12)를 앞바퀴(2)의 구동에 의해 동력을 전달하도록 하였으며, 
     상기 받침프레임(20)과 지지축(10)을 자전거부(A)의 주프레임(5)에 고정하는 제1프레임(61)과 제2프레임(62)을 일체로 고정하여 상기 구동부(50)를 체인(70)으로 연결하여 자전거부(A)의 체인기어(80)에 물려 폐달(4)로서 움직이도록 한 것이다. 
       
     지지축, 연동베어링, 연결축, 지구베어링, 받침프레임, 주프레임, 제1발판부재, 제2발판부재, 제1가이드축, 제2가이드축, 제1지지브라켓트, 제2지지브라켓트, 시이소판부재, 제1지지프레임, 제2지지프레임, 시이소부,  제1손잡이, 제2손잡이, 제1탄성스프링, 제2탄성스프링, 구동부, 제1구동 체인기어, 제2구동 체인기어, 제3구동 체인기어, 제4구동 체인기어, 동력전달축, 제1프레임, 제2프레임, 체인, 제2체인, 제3체인, 제4체인, 제5체인, 체인기어, 제3체인기어, 제4체인기어, 제5체인기어, 제6체인기어, 동력전달체인기어, 제1브라켓트, 제2브라켓트, 제3브라켓트, 제4브라켓트, 제5브라켓트, 제6브라켓트, 제1기어, 제2기어, 제1축, 제2축, 제3축
Patent KR-20090018398-A (KR)
Title: Apparatus for intuitive contents/presentation control based on wireless communication and control method thereof
Inventor: PARK KYU HO
IPC: G06F17/00
Filed: 2007-08-17
Abstract: An intuitive contents control device and a control method based on wireless telecommunication which wirelessly progresses presentation by executing the contents to an intuitive body motion are provided to include micro machined device for storing only the contents for presentation and operation and reduce content drive time. An intuitive contents control device(1) based on the wireless telecommunication includes an intuitive contents control device(10), a contents processor(30) and a contents display device(50). The intuitive contents control device senses acceleration which is the variation of the speed. According to the contents processor is acceleration data of the intuitive contents control device, the contents is processed. The contents display device displays the contents processed in the contents processor.
Patent KR-20090020023-A (KR)
Title: Preparation method of catalyst for production of acrylic acid using reactive ball-milling
Inventor: CHA KYONG YONG
IPC: B01J37/08
Filed: 2007-08-22
Abstract: A preparation method of a catalyst for the production of acrylic acid using reactive ball-milling is provided to obtain a catalyst with excellent activities by removing impurities included in the catalyst preparation process by ball milling under the presence of a polar solvent after preparing a catalyst from a catalyst precursor by firing. A preparation method of a catalyst for the production of acrylic acid comprises: obtaining a catalyst precursor from a solution comprising a molybdenum salt, a vanadium salt, a tellurium salt and a niobium salt; drying and firing the precursor to prepare an oxide catalyst for the production of acrylic acid; and ball milling the catalyst prepared by firing under the presence of a polar solvent. The polar solvent is used in the amount corresponding to 2 to 100 times the catalyst volume. The polar solvent is selected from the group consisting of water, methanol, ethanol, 1-propanol, 2-propanol, butanol, 1,2-ethandiol, acetone, and acetic acid.
Patent KR-20090021037-A (KR)
Title: Electric oven with multiple broil heaters and method for pre-heating the electric oven
Inventor: YANG JAE KYUNG
IPC: F24C7/06
Filed: 2007-08-24
Abstract: An electric oven with multiple broil heaters and a method for pre-heating the electric oven are provided to increase the usability of use by individually operating a plurality of broil heaters. An electric oven with multiple broil heaters comprises the main body(10) in which the cooking chamber(20) accommodating the food is equipped; the convection heater(120) installed at the rear wall side of cavity; the bake heater installed at the floor side of the cooking chamber; and two or more broil heaters(111,112) which is individually operated while being installed at the ceiling of the cooking chamber.