baber/WOPTO huggingface dataset:
Patent KR-20030021185-A (KR)
IPC: H01L21/683
Filed: 2001-05-14
Abstract: 본 발명에 따르면, 전자 부품을 제조하는 데 사용되는 반도체 웨이퍼 내에 디누디드 존 및 웨이퍼 상에 에피택셜 층을 형성하는 장치 및 방법이 제공된다.  디누디드 존 및 에피택셜 층은 1개의 장치 내에 형성된다.  이 장치는 웨이퍼의 급속 냉각 및 디누디드 존 형성을 위해 웨이퍼를 냉각 위치에서 지지하는데 사용되는 베르누이 막대를 구비한다.
Patent KR-20030061673-A (KR)
Title: 착색된 흡수성 물품
IPC: A61F13/15
Filed: 2003-01-11
Abstract: 속옷의 내면에 부착되는 흡수성 물품이 속옷의 빛깔과 맞춰진 착색된 흡수성 물품을 개시하고 있다. 상기 흡수성 물품은 착용자의 피부측에 배향되는 피부측 표면과, 속옷의 내면에 배향되는 착의측 표면을 가진다. 상기 흡수성 물품은 피부측 표면에 표면시트가 배치되어 있다. 표면시트는 합성 수지 섬유, 반합성 섬유, 재생 섬유 중에서 선택된 l종 이상의 착색된 섬유만으로 형성된 부직포이다. 이 흡수성 물품의 피부측 표면에서 측정한 명도가 Munsell 색계의 5.7∼9.3의 범위내이다.
Patent KR-20030067501-A (KR)
Inventor: KANG SA YUN
IPC: H01L25/07
Filed: 2003-01-29
Abstract: PURPOSE: A semiconductor chip is provided to easily apply a center pad-type chip as well as an edge pad-type chip to a stack chip package by forming a bump pad corresponding to a bonding pad and an interconnection extending to the side surface of a semiconductor chip in an inactive surface of the chip and by embodying an electrical connection of the stack chip package through a connection unit connected to the interconnection and the side surface of the chip. CONSTITUTION: An active surface(212), the inactive surface(213) opposite to the active surface and the side surface between the active surface and the inactive surface are included in the semiconductor chip(301,302,303,304,305,306,307,308). A plurality of bonding pads(211) are formed on the active surface. A plurality of bump pads(216) are formed on the inactive surface, corresponding to the bonding pad. A plurality of interconnections are formed on the inactive surface, extending from the bump pad and exposed to the side surface.
Patent KR-20030066376-A (KR)
Title: 패턴형성방법
IPC: H01L21/027
Filed: 2003-01-29
Abstract: 주사투사노광법(scan-projection exposure method)을 사용하여 광마스크상의 패턴을 기판상의 감광성수지막 위로 전사하기 위한 패턴형성방법은, 
     광마스크 및 기판을 서로 동기하여 주사하는 단계; 및 
     광마스크를 주사하는 동안 광마스크와 기판 사이에 위치된 투사광학계에서 발생하는 수차를 연속적으로 보정함으로써 감광성수지막을 노광하는 단계를 포함한다.
Patent KR-20030066463-A (KR)
Title: 불활성가스퍼지방법 및 장치, 노광방법, 레티클보관고,레티클검사장치, 레티클반송박스, 및 디바이스제조방법
IPC: G03F1/64
Filed: 2003-02-05
Abstract: 본 발명의 목적은, 노광광으로서 자외선을 이용하고, 장치의 내부를 불활성가스에 의해 퍼지하고, 원판의 패턴을 투영광학계를 개재해서 감광기판에 조사하는 노광장치에서, 원판과 펠리클막에 의해 거의 밀폐된 공간을, 불활성가스에 의해 유효하게 퍼지하는 기술을 제공하는 데 있다. 상기 목적을 달성하기 위하여, 불활성가스에 의해 퍼지되는 가스퍼지공간을 둘러싸는 부재에 의해 둘러쌈으로써 얻어진 구조체내에 복수의 통기구멍을 형성한다. 구조체 주위의 공간을 형성하는 용기를 불활성가스에 의해 채워서 불활성가스를 가스퍼지공간내로 침입시키고, 불활성가스에 의해 가스퍼지공간을 퍼지한다.
Patent KR-20040076492-A (KR)
Inventor: KIM EUN GEE
IPC: G08C17/02
Filed: 2003-02-26
Abstract: PURPOSE: A method for transmitting a wireless signal for tracker/reclaimer automation of a thermal power plant is provided to reduce largely the installation cost by using a wireless LAN method. CONSTITUTION: A laser distance signal of a measurement unit(1) is transmitted to an input/output unit(2). An output signal of the input/output unit is converted to a digital signal and the digital signal is modulated as a wireless signal by a converter/antennal signal modulator(3). The wireless output signal of the antenna signal converter is transmitted to a first antenna(4). The received wireless signal of the antenna is demodulated by an antenna signal demodulator/network(5). The demodulated signal is transmitted to a PLC/PC(6). Video signals of cameras installed at a tracker/reclaimer are converted to digital signals and the digital signals are modulated as wireless signals by a video signal converter/transceiver(7). The wireless signals are transmitted to a second antenna(8). The received wireless signals of the antenna are demodulated and the demodulated signals are converted into analog video signals by a video signal demodulator/transceiver(9). The analog video signals are displayed by a monitor(10).
Patent KR-20030078688-A (KR)
Title: 메모리 장치의 시험 방법
IPC: G11C29/00
Filed: 2003-03-26
Abstract: 본 발명은 메모리 장치의 내부 신호 발생 회로부로부터의 피측정 신호의 주기를 파형 측정기를 사용하지 않고 측정 가능하게 하기 위한 것으로서, 본 발명에 개시되는 메모리 장치는 외부로부터의 신호에 비동기로 일정 주기의 내부 신호를 출력하는 내부 신호 발생 회로부(22)를 구비한 메모리 장치에 있어서, 엔트리 정보의 입력시, 메모리 장치가 테스트를 행하기 위한 조건을 만족시키고 있는지를 판별함에 의해 출력을 발생하는 엔트리 회로 수단과, 엔트리 회로 수단의 출력이 발생하며 또한 메모리 장치의 메모리 셀 어레이부가 기록 인에이블 상태인 때, 출력을 발생하는 AND 회로와, 상기 AND 회로의 출력에 의해 활성화 된 때. 내부 신호를 메모리 셀 어레이부의 데이터 기록 입력에 결합하는 내부 신호용 버퍼를 구비한다.
Patent KR-20040084400-A (KR)
Inventor: LEE GEUN U
IPC: G01R31/28
Filed: 2003-03-28
Abstract: PURPOSE: A NAND flash memory test structure and a method for measuring a channel voltage of a NAND flash memory are provided to measure simply a boosting channel voltage of the NAND flash memory by improving the NAND flash memory test structure. CONSTITUTION: The first string selection transistor is used for controlling a voltage received from the first bit line. The first string(st1) is connected between the first string selection transistor and a source line selection transistor in order to maintain a programming state and an erasing state according to an input voltage. The second string selection transistor is used for controlling a voltage received from the second bit line. The second string(st2) is connected between the second string selection transistor and the source line selection transistor in order to maintain a programming state and an erasing state according to an input voltage. A measuring pad is connected to a connection point among the first and the second string selection transistors and a flash memory.
Patent KR-20030093936-A (KR)
Title: 차량용 전조등
IPC: F21Y101/00
Filed: 2003-04-01
Abstract: 본 발명은 종래부터 이용되고 있는 반사경 및 방전관을 이용하여 복수의 빔 모드로 사용가능한 차량용 전조등에 관한 것이다. 방전관(3)을 이동시키는 기구부는 회전 기구부(B), 링크 기구부(C), 광원부(D) 및 본체 케이스부(E)로 구성된다. 모터(9)가 회전하면 그 회전은 각 치차(齒車)를 개입시켜 치차(13)로 전달된다. 치차(13)의 회전축에 감합하여 입설된 회전체(10)가 상기 치차(13)의 회전과 함께 회전하고, 그 측면에 입설된 핀(8)이 회전이동부(5)의 내벽에 경사지게 형성된 접동구부(7)의 내부에서 이동하면, 회전이동부(5)는 Z방향으로 이동하게 된다. 방전관(3)은 회전이동부(5)에 고정되어 있으며, 방전관의 발광부(53)의 축과 회전이동부(5)의 축은 서로 편심되어 있기 때문에, 발광부(53)은 나선상으로 이동하여 하이 빔용 또는 로 빔용으로서 점등되는데 적합한 위치로 이동하게 된다.
Patent KR-20040085832-A (KR)
Title: Mat for growing plants which absorbs and stores water to use for budding or growth of plants
Inventor: SEO JUNG SOO
IPC: A01G1/00
Filed: 2003-04-01
Abstract: PURPOSE: Provided is a multipurpose mat for growing plants which absorbs and stores water to use for budding or early growth of plants. The mat is easily transported, stored and carried. CONSTITUTION: The multipurpose mat for growing plants is characterized by containing a water filling(40) and an outer coat(10) to supply water required for budding or early growth of plants as well as rooting thereof. The outer coat is made of pulp and/or plastics and has multiporous groove.
Patent KR-20040057868-A (KR)
Inventor: KIM GWAN JUNG
IPC: H04B10/032
Filed: 2003-04-15
Abstract: PURPOSE: A network protecting/recovering method in a PON(Passive Optical Network) system is provided to enable an optical network device to transmit registration request messages to an ONU(Optical Network Unit) as responses to the first and second gate messages, so that an OLT(Optical Line Terminal) and the ONU can sense an MPCP(Multi-Point-Control Protocol) message state to perform a proper protection/ recovery function. CONSTITUTION: An OLT confirms whether a report signal is received from ONUs(S200). If not(S202), the OLT sets a recovery path by using an optical switch(S204), and transmits a gate message to the ONUs(S206). If a register request message is received from the ONUs(S208), the OLT transmits a register message to the ONUs(S210). The OLT performs a raging process(S212), and transmits a gate message to the ONUs(S214). If a register acknowledgement message is received from the ONUs(S216), the OLT completes the raging process. If a response to the gate message is not received from the ONUs(S208), the OLT informs an operator of a splitter failure(S218). If a signal is not received from a specific ONU by a partial SF(Signal Failure)(S202), the OLT informs the operator of the failure(S220).
Patent KR-20040091838-A (KR)
Inventor: OH YONG JUN
IPC: G06F17/50
Filed: 2003-04-22
Abstract: PURPOSE: A method and a system for automatically generating a shop drawing of a steel frame for construction are provided to offer a new shop drawing technology enabling users to easily learn/use on an actual working process that a drawing work and a shop drawing writing work are separated. CONSTITUTION: A basic data input interface(320) registers a sort and a shape of basic parts and joints, which are basic data used to an entire project drawing collection, extracted from drawing data. Parameter input interfaces(330,340) assign the basic part and the joint forming each assembly part item, and input coordinates and dimensions of a main detail part and a joint detail part of the item. A CAD(Computer Aided Design) entity generator(360) generates a CAD data entity expressing the assembly part item depending on the parameter data inputted through the parameter input interface. A BOM(Bill Of Material) generator(380) generates a BOM included in the CAD data entity generated by searching/analyzing the generated CAD design entity. A memory stores the basic data, the parameter data inputted by each shop drawing, the generated CAD data entity, and the generated BOM.
Patent KR-20040092100-A (KR)
Inventor: HAN CHANG SU
IPC: G01Q60/42
Filed: 2003-04-24
Abstract: PURPOSE: A method for producing a probe for a multiple signal with a rod-shaped nano structure attached to its end is provided to reduce the price of a sensor or a detecting device by performing a batch process. CONSTITUTION: A plurality of electrodes(200) are aligned on a substrate in parallel in such a manner that the electrodes are in opposition to each other. A solution having a dispersed rod-shaped nano structure is provided between the electrodes in opposition to each other in such manner that all end parts or partial parts of the electrodes are under the solution. The nano structure(300-1) in the solution is attached to the electrodes by applying voltage to the multiple electrodes. The nano structure is tightly fixed to the fixture(600).
Patent KR-20030095976-A (KR)
Inventor: CHOI JEONG IL
IPC: B21H7/00
Filed: 2003-05-14
Abstract: PURPOSE: An apparatus for manufacturing a multistep pulley is provided which automates the whole manufacturing process by continuously arranging first and second cutting means and first and second forming means on one straight line and installing a plural workpiece transfer means between the respective cutting means and forming means. CONSTITUTION: The apparatus comprises a cutting part(100) and forming part(200), wherein the cutting part(100) comprises an installation stand 1(110) comprising main frame(111) having a certain size, and holding stand(112) supported by plural posts(113) on an upper part of the main frame; first cutting process performing means(120) which is installed on the installation stand 1(110) and comprises upper and lower dies(123,127) for biting an original plate workpiece, and first forming tool 1 for cutting to cut thickness of the original plate workpiece to an arbitrary depth as rotating the original plate workpiece; second cutting process performing means(130) which is installed on the installation stand 1(110) and comprises upper and lower dies(133,137) for biting an original plate workpiece, and first forming tool 2 for cutting to cut thickness of the original plate workpiece to an arbitrary depth as rotating the original plate workpiece; and a transfer means 1(140), and the forming part(200) is installed at a next position of the cutting part(100) and comprises an installation 2(210) comprising main frame(211) having an arbitrary size, and holding stand supported by plural posts(213) on an upper part of the main frame; first cutting process performing means(220) which is installed on the installation stand 2(210) and comprises upper and lower dies(223,227) for biting an original plate workpiece, and first forming tool 3 for forming to cut thickness of the original plate workpiece to an arbitrary depth as rotating the original plate workpiece; first cutting process performing means(230) which is installed on the installation stand 2(210) and comprises upper and lower dies(233,237) for biting an original plate workpiece, and second forming tool 4 for forming to cut thickness of the original plate workpiece to an arbitrary depth as rotating the original plate workpiece; and a transfer means 2(240).
Patent KR-20040098485-A (KR)
Inventor: KO JEONG GEUN
IPC: H01L21/304
Filed: 2003-05-15
Abstract: PURPOSE: A method of cleaning a polished wafer is provided to remove easily the wax or slurry adsorbed on the wafer by forming a silicon oxide layer on the wafer using predetermined chemicals. CONSTITUTION: A silicon wafer is polished. At this time, the wafer is fixed to a polishing block by using wax. The wafer is demounted from the polishing block. The characteristic of the wafer is transformed from hydrophobic to hydrophilic by forming a silicon oxide layer on the wafer using a cleaning process. The polishing process is performed by using a batch type polisher or single type polisher. The cleaning process is performed by using predetermined chemicals mixed with deionized water and H2O2.
Patent KR-20030089475-A (KR)
IPC: H01L21/768
Filed: 2003-05-15
Abstract: 동일 기판상에 LSI 회로와 인덕터 소자가 형성된 본 발명에 따른 반도체 장치는, 상기 기판상에 형성된 층간 절연막과, 상기 층간 절연막상에 형성되고 상기 LSI 회로의 내부 배선이 되는 제 1의 적층 배선층과, 상기 층간 절연막상에 형성되고 상기 인덕터 소자를 구성하는 제 2의 적층 배선층을 포함하며, 상기 제 1 및 제 2의 적층 배선층은 서로 다르고, 상기 제 2의 적층 배선층에는, Al 합금층에 접촉하는 Ti층이 존재하지 않는 것을 특징으로 한다.
Patent KR-20040098768-A (KR)
Inventor: KIM BONG HOE
IPC: H04B7/26
Filed: 2003-05-15
Abstract: PURPOSE: A signal transmitting method in a multi-input/output wireless communication system is provided to increase throughput of data transmitted through each channel code. CONSTITUTION: In a closed-loop multi-input/output wireless communication system, if the number of channel codes for discriminating terminals is smaller than the number of terminals for receiving a service, the same channel code is allocated to one or more terminals according to a channel situation. Only when a correlation value of a weight set among users sharing channel codes is not greater than a certain threshold value, the same channel code is allocated to the users.
Patent KR-20040098887-A (KR)
Inventor: CHOI HA YEONG
IPC: A61K47/00
Filed: 2003-05-16
Abstract: PURPOSE: Provided is a method for making astaxanthin water-soluble by microcapsulation and complexion of astaxanthin powder or oil using cellulose, dextran, cyclodextran, gelatin, chitin, chitosan and saponin. Therefore, water-soluble astaxanthin is widely used for food additives, cosmetics, feeds and the like. CONSTITUTION: The method for making astaxanthin water-soluble is characterized by the steps of: mixing astaxanthin oil or powder with water, alcohol or their mixture, and at least one selected from the group consisting of cellulose, dextran, cyclodextran, gelatin, chitin, chitosan and saponin, or their mixture; and agitating the mixture at a high speed of 1000-25000rpm for microcapsulation and complexion.
Patent KR-20030055195-A (KR)
Inventor: JANG SEONG CHEOL
IPC: A61H1/00
Filed: 2003-05-17
Abstract: PURPOSE: A leg joint physical therapy device is provided to prevent and treat diseases of the muscular and skeletal system of a leg joint portion. CONSTITUTION: The device comprises: a driving section(10) which has a rotating disc(12) with a stopping part(11), a rotary axis(14) inserted into a support(13) and a driving motor(15) rotating the rotary axis(14); a lifting plate(20) which has the other end of an operating arm(22) attached to the bottom surface, the operating arm having at one end a horizontal groove(21) reciprocating with being inserted into the stopping part(11), has a plurality of rollers(23) projected on the top surface, has a spring(25) mounted on the center of the rear end by a clamping pin(24) and has a guide groove(26) at both side faces to be lifted by the driving of the driving unit(10); and a horizontal reciprocating plate(30) which has at the bottom end of both side faces a protrusion(32) slidably inserted into the guide groove(26), has at the bottom surface a spring support part(31) elastically supported by the spring(25) and which is mounted on the top surface of the lifting plate(20) to be contacted with the roller(23).
Patent KR-20040101704-A (KR)
Inventor: HWANG JONG TAE
IPC: H03F3/45
Filed: 2003-05-26
Abstract: PURPOSE: A trans-conductance control circuit of rail-to-rail differential input stage of operational amplifier to obtain constant trans-conductance is provided to maintain constantly the trans-conductance by controlling current applied to a differential pair. CONSTITUTION: A trans-conductance control circuit includes an RTR differential input stage, a supply current unit, and a trans-conductance control unit. The RTR differential input stage(100) includes a first differential pair and a second differential pair. The supply current unit is connected to each source of the first and the second differential pairs. The trans-conductance control unit(200) senses a first gate-source voltage of the first differential pair and a second gate-source voltage of the second differential pair, compares the reference current with the current corresponding to the sum of the first gate-source voltage and the second gate-source voltage, and controls the flow of the current according to a compared result.
Patent KR-20030055205-A (KR)
Inventor: KIM MIN JEONG
IPC: H02G15/08
Filed: 2003-05-30
Abstract: PURPOSE: A liquid/power complex cable is provided to be capable of reinforcing a strength of an oxygen gas supply line when a liquid tube and a wire are contained in one coating member. CONSTITUTION: A male member(120) has a gas tube connection terminal(121) and a wire connection terminal(123) formed at a back side and a gas tube connection terminal(122) and a wire connection terminal(124) formed at a front side and is configured to be connected at both ends of a cable. A female member(140) has a gas tube connection terminal(141) and a wire connection terminal(143) formed at a back side and an insertion space(142), in which the male member(120) is inserted, formed at a front side. A gas tube connection hole(144) is configured to be projected and is inserted in the gas tube connection hole(122). Wire connection holes(146) are formed to be projected and are inserted in the wire connection hole(124). The male members(120) are inserted in the insertion space(142) of the female member(140) so that a power is connected simultaneously with a gas tube.
Patent KR-20040107182-A (KR)
Inventor: KIM JAE YONG
IPC: B29D35/12
Filed: 2003-06-13
Abstract: PURPOSE: A method for manufacturing a midsole is provided to perfectly remove foam produced at forming under a vacuum state by selectively moving up and down an upper mold. CONSTITUTION: A platform(16) is movably secured to a frame(11). A lower mold is secured to a heat plate(18b) provided on the platform. Vacuum boxes are mounted to an upper plate(12a). A fixing plate is disposed in the vacuum boxes, and is secured to the upper plate. An upper mold is mounted to the heat plate. A cylinder is disposed on the upper plate, and is secured to the upper plate, the vacuum box fixed to a vacuum vessel(19), and the fixing plate. A rod(28) passes through the vacuum box to couple the upper mold and the heat plate, and is moved up and down by the cylinder.
Patent KR-20040012465-A (KR)
Inventor: IKEDA EITO
IPC: B05C1/08
Filed: 2003-06-13
Abstract: PURPOSE: To reduce the powder loss by scattering and prevent harmful influence by dripping. CONSTITUTION: In a powder sprayer, a spraying roller 18 arranged on the lower part of a powder storage tang 12 is rotated and thereby the powder 10 stuck onto the spraying roller 18 is sprayed on a body 30 to be sprayed passing through the lower part of the spraying roller 18. A space partitioning rollers 32 and 34 are provided in the vicinity of the spraying roller 18 at the upstream side and the downstream side thereof along the flowing direction of the body 30 to be sprayed to form a spray closing space 36 directly under the spraying roller 18.
Patent KR-20050000758-A (KR)
Inventor: KWON HYOUK
IPC: G03B33/14
Filed: 2003-06-24
Abstract: PURPOSE: A microlens array with an improved fill factor and a method for fabricating the same are provided to improve an optical characteristic of a microlens by improving the fill factor of the microlens array. CONSTITUTION: A microlens array includes a substrate(110), a plurality of microlens(120), and an interval filling film(130). The substrate(110) is used for mounting microlens. The microlens(120) is two-dimensionally arrayed on the substrate. The interval filling film(130) is formed in such a manner that intervals of the substrate generated between the microlens and an upper side of the arrayed microlens are covered. The microlens array is designed such that the ratio of an area occupied by the microlens to the entire area of the substrate is raised. The substrate includes glass or metal.
Patent KR-20040004143-A (KR)
Inventor: JIN SEOK MIN
IPC: C07K14/72
Filed: 2003-07-02
Abstract: PURPOSE: A method for producing a transgenic plant which expresses a thyroid stimulating hormone receptor is provided, thereby easily inducing the second modification of the human thyroid stimulating hormone receptor(hTSHR) or the human thyroid stimulating receptor-extracellular domain(hTSHR-ECD) produced, and mass-producing hTSHR from the transgenic plant. CONSTITUTION: A method for producing transgenic plant which expresses a human thyroid stimulating hormone receptor(hTSHR) or a human thyroid stimulating receptor-extracellular domain(hTSHR-ECD) comprises the steps of: (a) transforming plant cells with a polynucleotide sequence selected from (i) the nucleotide sequence encoding hTSHR or hTSHR-ECD, (ii) a promoter which is operably linked to the nucleotide sequence of (i) and forms RNA molecules in a plant, and (iii) a 3'-non-detoxification region which causes polyadenylation of the 3'-terminal of the RNA molecule; (b) selecting transgenic plants; and (c) regenerating plants from the transgenic plants, wherein the plant is selected from tobacco, melon, cucumber, watermelon and rape; and the transformation is carried out by using Agrobacterium system.
Patent KR-20050006912-A (KR)
Inventor: KIM SEON JEONG
IPC: A61L27/00
Filed: 2003-07-10
Abstract: PURPOSE: Provided are nano-biomimetic muscles using body energy from decomposition of ATP, which serve for compensating for the functional loss by aging or degeneration of muscles. CONSTITUTION: The nano-biomimetic muscles are obtained by the steps of producing nano fibers and synthesizing the nano fibers into ATP activated hydrogels. The step of producing nano fibers is effected by electrospinning which is a method using sufficient surface charge from electric field by applying electric field between injector with tip of capillary filled with polymeric solution, and metal plate for collecting fibers spaced from the injector. In the step of synthesizing the nano fibers into ATP activated hydrogels such that the nano fibers respond to ATP, is used the method forming semi- or full-IPN(Interpenetrating Polymer Network) with crosslinking agents.
Patent KR-20050007891-A (KR)
Inventor: JUNG BYUNG HWAN
IPC: F01M11/00
Filed: 2003-07-12
Abstract: PURPOSE: A device for insulating noise of an engine in an oil pan is provided to prevent vibration and noise of the engine by restricting operation noise from a crankcase from being transmitted to the oil pan in operating a piston, a crankshaft and a connecting rod of the engine. CONSTITUTION: An oil pan(30) is mounted to the lower pat of a crankcase(12) of an engine(10) to store oil, and a partition wall(34) is vertically formed inside a side wall(32) of the oil pan to store engine oil flowing down along the inner wall of the crankcase of a cylinder block(11) and to form a soundproof space(33). Oil injected to the piston of the engine is streamed down to the oil pan and charged in the soundproof space of the oil pan along the inner wall of the crankcase. Oil overflowing from the soundproof space is stored in the storage space of the oil pan, and noise is reduced by filling the soundproof space with engine oil in actuating a piston, a crankshaft and a connecting rod.