baber/WOPTO huggingface dataset:
Patent KR-20070058084-A (KR)
Title: Photoresist composition
Inventor: KIM BYUNG UK
IPC: G03F7/022
Filed: 2005-12-01
Abstract: A photoresist composition is provided to improve film speed, remaining rate, development contrast, resolution, solubility of polymer resin, adhesiveness with a substrate, and CD uniformity in photoresist film. The photoresist composition comprises (a) 5-30wt% of novolak resin, (b) 2-10wt% of a diazide-based photosensitive compound, (c) 0.5-5wt% of a flowability improver, (d) 0.1-10wt% of a sensitivity improver, and (e) the balance of organic solvent. The novolak resin(a) has a content ratio of meta/para-cresols of 30-70:70-30 parts by weight and a molecular weight of 2,000-10,000. The diazide-based photosensitive compound contains 2,3,4-trihydroxybenzophenone-1,2-naphthoquinonedizide-5-sulfonate and 2,3,4,4'-tetrahydroxybenzophenone-1,2-naphthoquinonediazide-5-sulfonate in a ratio of 40-60:60-40 parts by weight.
Patent KR-20070058187-A (KR)
Title: Flat fluorescent lamp and liquid crystal display device having the same
Inventor: KIM MIN JOO
IPC: G02F1/133
Filed: 2005-12-01
Abstract: A flat fluorescent lamp and a liquid crystal display device having the same are provided to maintain uniformity of brightness by forming a barrier rib with quartz and coating phosphors on the barrier rib. A first phosphor layer(135) is formed between facing surfaces of a first and second substrates(110,120). A plurality of barrier ribs(140) are formed between the first and second substrates in order to form a plurality of discharge spaces. The barrier ribs include external walls and internal walls. The width of the barrier rib is reduced gradually toward an upper part thereof. A first and second electrodes(160A,160B) are formed at both ends of the first and second substrates in order to apply voltages to the discharge spaces.
Patent KR-20070060847-A (KR)
Title: Shut off valve control system of liquified petroleum gas injection vehicle
Inventor: PARK JUNG JOO
IPC: F02M37/00
Filed: 2005-12-09
Abstract: A shut-off valve control system of an LPI(Liquefied Petroleum gas Injection) vehicle is provided to achieve improved durability of a shut-off valve by stably opening/shutting the shut-off valve. A shut-off valve control system of an LPI vehicle includes an ignition switch(10), a fuel pump relay(20), a fuel pump(60), a driver(40), a shut-off valve(50), and a controller(30). The ignition switch controls battery power supplied to a load by switching the contact by an ignition key. The fuel pump controls battery power for driving the fuel pump by switching the internal contact in interlock with the ignition switch. The fuel pump presses fuel contained in a fuel tank to a fuel line. The driver is arranged to drive the operating speed of the fuel pump in a stepwise manner. The shut-off valve is opened when the fuel pump presses fuel so that the pressed fuel is supplied to an injector through the fuel line. The controller controls the fuel pump at the operating speed corresponding to the requested fuel amount in accordance with a start on/off signal and the opening degree of a throttle. The controller controls opening/shutting operation of the shut-off valve in accordance with a pulse width modulation signal output during engine start on/off.
Patent KR-20070060900-A (KR)
Title: Method for reducing heating time for catalyst gasoline engine
Inventor: YU CHUL HO
IPC: F02D43/00
Filed: 2005-12-09
Abstract: A method for reducing heating time for a catalyst of a gasoline direct injection engine is provided to reduce back pressure by reducing the volume of the catalyst and the size of a cell. A method for reducing heating time for a catalyst of a gasoline direct injection engine includes a step of producing a lean fuel-air mixture by injecting 60~80% of the total fuel to the air sucked in a cylinder; and a step of producing a fuel-air mixture by injecting the remainder 20~40% to the vicinity of a recess hollow portion of a top surface of the piston.
Patent KR-20070063722-A (KR)
Title: Air-conditioning apparatus with ventilation operation and thereof method
Inventor: HA TAE HOON
IPC: F24F7/08
Filed: 2005-12-15
Abstract: An air-conditioning apparatus with a ventilation operation and a method thereof is provided to exchange enough heat at a heat exchanger between indoor air and outdoor air. An air-conditioning apparatus with a ventilation operation includes a body(10) with a feeding channel(11) and a discharging channel(12) therein. The air-conditioning apparatus further includes a heat exchanger, a feeding air pressure sensor(17), a discharging air pressure sensor(18), an air controller, and a controller. The feeding air pressure sensor detects the pressure of incoming air at the feeding air path. The discharging air pressure sensor detects the pressure of discharging air at the discharging air path. The air controller controls an amount of air supplied through the path at the feeding air path or at the discharging air path. The controller controls the air controller according to the pressure of the incoming air and the discharging air measured by the feeding air pressure sensor and the discharging air pressure sensor, when an imbalance between the amount of the feeding air and the discharging air.
Patent KR-20070065686-A (KR)
Title: Manufacturing device wrapped for rice cake - bossam
Inventor: YUN YANG JI
IPC: A23L7/10
Filed: 2005-12-20
Abstract: Provided is an apparatus for preparing a wrapping skin for tteok(rice cake) automatically to allow the taste of a wrapping skin to be uniform and to regulate the thickness of a wrapping skin. The apparatus comprises a supply part(10) which receives a liquid raw rice material comprising water and the pulverized powder to supply it by a thickness of thin film; a steaming part(20) which steams the liquid rice material supplied and coated in a thickness of thin film from the supply part; a cutting part(30) which cools the steamed wrapping skin and cutting it by a certain size; and a transfer part(40) which loads the wrapping skin passed through the cutting part and discharging the loaded one.
Patent KR-20070068521-A (KR)
Title: Arrangement for connecting mast assembly in forklift truck
Inventor: CHUNG GYOU RYEON
IPC: B66F9/075
Filed: 2005-12-27
Abstract: A structure for connecting a mast assembly for a forklift truck is provided to continuously hang a damaged cap on a hinge pin of the mast assembly by hanging a hook on a hinge pin so as to prevent a body from being separated from the mast assembly. A structure for connecting a mast assembly for a forklift truck rotatably connects the mast assembly to a body. The structure includes hinge pins(10), a pair of hooks(20), and a cap(30). The hinge pins are installed on both side surfaces of the mast assembly. The hook extends from the body so as to be caught by the vertical upper surface of the hinge pin to support the hinge pin, and has a hanging groove(22) opened downwardly. The cap is engaged with a lower open section of the hook by a coupling bolt to prevent separation of the hinge pin from the hooks, and blocks the open section of the hanging groove.
Patent KR-20060079749-A (KR)
Inventor: FUKUSHIMA MASATO
IPC: B23D15/12
Filed: 2005-12-28
Abstract: 상부 절단날의 커트(풀커트 또는 하프커트)시의 상부 절단날에 의한 공작물의 내리누름에 의한 변형을 방지해서, 커트 정밀도가 향상되는 절단가공방법 및 절단가공장치 및 그것에 사용하는 공작물 지지구조를 제공하는 것에 있다. 
     박육의 공작물 홀더용 시트(WH)에 개공(開孔)되는 구멍(W1)에 삽입되는 공작물(W)을, 하프커트하는 상하의 절단날(C1, C2)에 접촉하지 않도록 공작물(W) 두께의 중간영역에 위치시켜서 그 공작물 홀더용 시트(WH)에 가고정한다. 공작물(W)의 전체 폭보다 길고 공작물 홀더용 시트(WH)보다 짧은 소정 길이의 상하 절단날(C1, C2)로 공작물 홀더용 시트(WH)를 절단하는 일 없이 공작물(W)을 전체 폭에 걸쳐 분담해서 하프커트한다. 하프커트시의 상부 절단날(C1)에 의한 공작물(W)의 내리누름을 절단가공기(1)의 테이블면 높이에 고정적으로 설치한 하부 스트리퍼(ST2)로, 또한 하부 절단날(C2)에 의한 공작물(W)의 밀어올림을 상부 스트리퍼(ST1)로 각각 방지한다.
Patent KR-20070072054-A (KR)
Title: Plasma display device having particle substance alarm sensor
Inventor: KIM JI HOON
IPC: G09G3/296
Filed: 2005-12-30
Abstract: A plasma display device having a particle sensor is provided to warn correctly a cleaning time by sensing the amount of particles exceeding a reference value. A particle sensor(160) is installed at a driving board in order to sense particles on the driving board. A logic unit(171) outputs a control signal when the amount of particles sensed from the particle sensor exceeds a reference value. A driving circuit unit(173) outputs a driving signal according to the control signal of the logic unit. A display unit(174) warns the amount of particles exceeding the reference value according to the driving signal of the driving circuit unit.
Patent KR-20050021467-A (KR)
Title: Low bit-rate audio coding
IPC: G10L19/02
Filed: 2003-07-08
Abstract: The perceived quality of an audio signals obtained from very low bit-rate audio coding system is improved by using expanding quantizers and arithmetic coding in a transmitter and using complementary compression and arithmetic decoding in a receiver. An expanding quantizer is used to control the number of signal components that are quantized to zero and arithmetic coding is used to efficiently code the quantized-to-zero coefficients. This allows a wider bandwidth and more accurately quantized baseband signal to be conveyed to the receiver, which regenerates an output signal by synthesizing the missing components.
Patent KR-20050065546-A (KR)
Title: Belt tensioner
Inventor: SERKH ALEXANDER
IPC: F16H7/08
Filed: 2003-09-19
Abstract: The invention is an improved power transmission belt tensioner of the type having a first pulley (34) adapted to communicate with a surface of a power transmission belt (24), a first arm (42) supporting the first pulley (34) upon which the first pulley (34) is rotatably mounted via a first pulley bearing (40), a second pulley (35) adapted to communicate with a surface of the power transmission belt (24), a second arm supporting the second pulley (35) upon which the second pulley (35) is rotatably mounted via a second pulley bearing. It is improved by the inclusion of a strut (36), a first attachment point (68) for the strut (36), and a second attachment point (70) for the strut (36), with the strut (36) attached to the first (68) and the second attachment points (70). The first arm (42) is rotatably supported at a first pivot (44). The second arm is rotatably supported at a second pivot. The first pulley (34) and the first attachment point (68) are each laterally offset in relation to the first pivot (44) and substantially balanced in terms of parasitic torque across the first pivot (44).
Patent KR-20050090374-A (KR)
Title: Use of tenatoprazole for the treatment of gastroesophageal reflux
Inventor: SCHUTZE FRANCOIS
IPC: A61P11/00
Filed: 2003-10-21
Abstract: The invention relates to a novel therapeutic application of tenatoprazole. Tenatoprazole and the salts thereof can be used in the production of a medicament for the treatment of atypical and esophageal symptoms of gastroesophageal reflux, gastrorrhagia and dyspepsia.
Patent KR-20050052543-A (KR)
Title: Block for forming leading passage, and panel member and frame for constructing wall body with leading passage
Inventor: OTSUKI TAKAYUKI
IPC: E02D29/02
Filed: 2003-10-23
Abstract: A block for forming a leading passage, characterized by having a ridge line, a recess line or a step on the front face of the block, so that, when a plural number of the blocks are used to form a continuous leading passage by piling up the blocks, the ridge line, recess line or step of each of the blocks continues between the blocks of which end portions are adjacent to each other. The ridge lines, recess lines or steps may be arranged in different directions in blocks of upper steps and blocks of lower steps so as to form the leading passage by uncoursed masonry. The leading passage may have a flat portion on an end portion of or the center of the front face of the blocks. A slope passage completed on a wall body face makes it possible that amphibians such as frogs and newts, and even insects such as larvae of fireflies, moves from water to land and in the opposite direction.
Patent KR-20050083864-A (KR)
Title: Thermally vanishing material, transfer sheet using the same, and method for forming pattern
Inventor: FUKUI HIROJI
IPC: H05K1/03
Filed: 2003-11-26
Abstract: A thermally vanishing material, characterized in that it comprises a polyoxyalkylene resin as a primary component, contains oxygen atoms in an amount of 15 to 55 mass %, and 95 wt % or more of the material vanishes on the exposure to a temperature of 150 to 350°C for 10 minutes or less. The thermally vanishing material is less prone to deterioration or decomposition at an ordinary use temperature and vanishes by the heating to a relatively low temperature for a short time, and thus finds widespread application, for example, applications for a method for producing a porous material, a transfer sheet comprising electroconductive fine particles, a transfer sheet for forming a circuit, a method for forming a pattern and the like.
Patent KR-20050086611-A (KR)
Title: Hydrodynamic actuating device for construction machines
Inventor: LEGNER JUERGEN
IPC: F16H45/02
Filed: 2003-11-08
Abstract: The invention relates to a hydrodynamic actuating device comprising a transmission motor, a torque converter and a transmission connected behind. The inventive actuating device is used, in particular for construction machines having an extended range of motion such as a wheel loader. In order to limit a maximum tractive force, a preliminary clutch (16) and a bridging clutch of the converter (WK) are connected to the torque converter and mounted in series in such a way that they are switchable by one valve which is controlled by a transmission control by means of a control pressure by engaging first and foremost the primary clutch (16) and afterward the bridging clutch of the converter (WK) at all driving conditions.
Patent KR-20050085531-A (KR)
Title: Brazing sheet product and method of its manufacture
Inventor: WITTEBROOD ADRIANUS JACOBUS
IPC: B23K35/02
Filed: 2003-12-09
Abstract: Disclosed is a brazing sheet product including a core metal sheet (1), on at least one side of the core metal sheet (1) a clad layer (2) made of an aluminum brazing ally comprising silicon in an amount in the range of 4 to 14% by weight, and on at least one outersurface of the clad layer (2) a layer comprising iron or iron alloy (4), and on the outersurface of the layer comprising iron or iron alloy (4) a further layer (3) including a metal X, whereby X is selected from the group consisting of tin, zinc, bismuth, indium, antimony, strontium, titanium, maganese, copper, or combinations of two or more thereof. Also, disclosed is a method of manufacturing such a brazing product, and a brazed assembly including at least one component made of this brazing product.
Patent KR-20060063780-A (KR)
Title: Phase-change information recording medium and process for producing the same, sputtering target, method for using phase-change information recording medium and optical recorder
Inventor: OHKURA HIROKO
IPC: G11B7/243
Filed: 2004-08-04
Abstract: A phase-change information recording medium such that overwrite recording is possible, the storage reliability is excellent, initial crystallization is facilitated, the capacity is equivalent to that of DVD-ROMs, the recording sensitivity is good at high linear velocities above the ten-fold recording speed. The phase-change information recording medium comprises a substrate, and over this substrate a first protective layer, a phase-change recording layer, a second protective layer and a reflective layer formed in this order or reverse order. The phase-change recording layer has a composition expressed by SnalphaSbbetaGagammaGe deltaTeepsilon-Xzeta(where X is at least one element selected from Ag, Zn, In and Cu, alpha, beta, gamma, delta, epsilon and zeta represent the compositional ratios (atomic%) of the respective elements and satisfy the following relations: 5<= alpha<=25, 40<=beta<=91, 2<=gamma<= 20, 2<=delta<=20, 0<=epsilon<=10, 0<= zeta<=10, and alpha+beta+gamma+delta+epsilon+zeta =100).
Patent KR-20060009337-A (KR)
Title: Magnetoelectronics information device having a compound magnetic free layer
Inventor: ENGEL BRADLEY N
IPC: G11C/
Filed: 2004-05-07
Abstract: A magnetoelectronics information device (20) is provided that includes two multi-layer structures (24, 26) and a spacer layer (28) interposed between the two multi-layer structures. Each of the multi-layer structures has two magnetic sublayers (38, 40, and 44, 46) and a spacer layer (42, 48) interposed between the two magnetic sublayers. The spacer layer interposed between the two magnetic sublayers provides an antiferromagnetic exchange coupling that is quantified by a saturation field. The spacer layer interposed between the two multi-layer structures provides a second antiferromagnetic exchange coupling is quantified by another saturation field that is less than the first saturation field.
Patent KR-20060025175-A (KR)
Title: Compositions comprising photoacid generators
Inventor: HOULIHAN FRANCIS M
IPC: G03F7/039
Filed: 2004-06-04
Abstract: A composition useful for forming a photoresist layer at i-line (365 nm) comprising (a) a film forming resin; (b) a compound represented by the following formula (I) wherein R 1 is a C1-20 alkyl group, C6-20 aryl group, or C6-20 aralkyl group, the C1-20 alkyl group, C6- 20 aryl group, or C6-20 aralkyl group being unsubstituted or substituted by one or more groups selected from halogen, C1-20 alkyl, C1-8 perfluoroalkyl, C1-20 alkoxy, cyano, hydroxyl, or nitro; R 2 and R3 are each independently selected from hydrogen, C1- 8alkyl, C1-8 perfluoroalkyl, C1-8 alkoxy, nitro, halogen, carboxyl, hydroxyl, and sulfate; each of m and n are independently 0 or a positive integer; and X-is a non-nucleophilic anion of an acid; (c) optionally, additives to adjust the optical, mechanical and film forming properties; (d) optionally, a base or radiation sensitive base; and (e) a solvent.
Patent KR-20070074744-A (KR)
Title: Hair dye composition comprising cationic surfactant
Inventor: YOON IL KI
IPC: A61Q5/10
Filed: 2006-01-10
Abstract: A hair dye composition comprising a cationic compound is provided to improve hair-conditioning effects, color durability, and remove remaining hair dye and skin contaminants from the hair and scalp after hair dying is finished. The hair dye composition comprises 0.1-10 wt.% of the cationic compound represented by the formula(1), 0.01-5.0 wt.% of an anionic polymer, 0.1-10 wt.% of a cationic polymer, 0.1-5.0 wt.% of a silicon compound and 0.1-5.0 wt.% of an oxidation dye for dyeing keratin fiber, wherein R1 is C12-C18 linear or branched alkyl group, C12-C18 linear or branched alkenyl or a mixture thereof; R2 and R3 are the same or different and each independently C1-C3 alkyl group; R4 is (CH2CHOHCH2O)nH in which n is an integer from 1 to 10; and X is halogen element, sulfate group or acetate group.
Patent KR-20070036588-A (KR)
Inventor: JUNG MUN HO
IPC: H04N7/08
Filed: 2006-01-13
Abstract: 본 발명은, 티팩 메시지를 이용한 도로 구간 교통 상황 정보 제공방법과 엔코딩 및 디코딩 장치 및 방법에 관한 것으로, 예를 들어 디엠비(DMB) 방송 신호에 포함 전송되는 TPEG 메시지 내에, 다양한 부가 정보, 특히 교통이 정체되는 도로 구간에 대한 교통 상황(Traffic State) 정보를 보다 효율적으로 포함 전송하여, 디엠비 단말기를 휴대한 사용자들이, 일반 교통 정보는 물론 다양한 도로 구간별 교통 상황 정보를 간편하게 수신 및 확인할 수 있게 되므로, 사용자의 편리성 향상과, 디엠비 방송과 같은 디지털 방송의 활성화 등에 크게 기여할 수 있게 되는 매우 유용한 발명인 것이다.  
       
     티팩 메시지, 디엠비 방송, 부가 정보, 도로 교통 메시지 이벤트 컨테이너, 멀티미디어 디스크립터, 도로 구간 정보, 교통 상황 정보
Patent KR-20070077285-A (KR)
Title: Backlight assembly and display device having the same
Inventor: PARK SE KI
IPC: G02F1/13357
Filed: 2006-01-23
Abstract: A back light assembly and a display device having the same are provided to improve the color uniformity of a white light emitted from the back light assembly by increasing a mixing efficiency of red, green, and blue lights using a pattern formed on a reflection plate of the back light assembly. A plurality of point light sources(10) include a red LED (light emitting diode)(R) emitting a red light, a green LED(G) emitting a green light, and a blue LED(B) emitting a blue light. An optical sheet(30) is disposed over the point light sources. A pattern is formed on a reflection plate(50). Openings(53) are formed in the reflection plate. The point light sources are disposed in the openings, respectively. The optical sheet includes a diffusion sheet(33) that diffuses the red, green, and blue lights and a DBEF (dual brightness enhancement film) that is disposed on the diffusion sheet to emit a white light.
Patent KR-20060015767-A (KR)
Inventor: LEE IK KYE
IPC: E01C11/22
Filed: 2006-01-24
Abstract: 본 발명은 경사면을 갖는 도로경계석에 관한 것으로, 차도쪽 길이방향 전면이 경사지게 형성된 접촉방지경사면(12)에 반사체(14)가 형성되므로 이동하는 차량과의 면접촉이 이루어지지 않아 차량의 안전과 함께 반사체(14)의 파손 및 탈락을 방지할 수 있으며, 특정위치를 나타내는 특정색상을 입혀 도로상의 위치식별에 용이한 것은 물론, 보행자가 밟게 되는 상면이 거친 질감의 미끄럼방지면(12)을 형성하여 눈이나 비가 올 때 보행자가 도로경계석을 밟고 이동할 시 미끄러짐을 방지할 수 있다. 이를 위해 이동하는 차량이 면접촉되지 않도록 차량쪽 길이방향 전면이 경사지게 접촉방지경사면(12)으로 형성되면서 수평방향 상면은 거친 질감의 미끄럼방지면(16)으로 형성되고, 상기 접촉방지경사면(12)은 길이방향으로 상측부위 또는 중간부위에 야광테이프 또는 야광판의 형태인 반사체(14)가 부착된 구조상의 특징이 갖는다. 
     
     도로경계석, 접촉방지경사면, 반사체, 야광테이프, 미끄럼방지면
Patent KR-20070081508-A (KR)
Title: Spin coater having wafer monitoring unit
Inventor: KIM DONG HYEUN
IPC: H01L21/027
Filed: 2006-02-13
Abstract: A spin coater is provided to restrain the degradation of productivity by preventing the contamination of equipment due to the particles generated from a damaged wafer using a wafer monitoring unit. A spin coater includes a spin chuck(10) for loading and rotating a wafer(W) and a wafer monitoring unit. The wafer monitoring unit is used for sensing a wafer state and generating an interlock signal in case of an abnormal wafer state. The abnormal wafer state is generated due to a damaged edge portion of the wafer. The wafer monitoring unit is composed of a wafer sensor and an image information processing portion. The wafer sensor(20) is installed at the edge portion of the wafer in order to detect the wafer state at the edge portion. The image information processing portion(30) is used for generating the interlock signal according to the results of the wafer sensor.
Patent KR-20070083024-A (KR)
Title: Method for calling a method in virtual machine environment and system including a virtual machine processing the method
Inventor: LEE SANG GYU
IPC: G06F9/46
Filed: 2006-02-20
Abstract: A method for calling methods in a VM environment and a system embedded with a VM performing the same are provided to minimize system overhead by directly accessing an address of the method to be called when the method is called in the VM environment. If an instruction of the first method corresponds to the instruction calling the second method, a direct call information managing module(720) stores the address of an instruction code to a storage space, changes the address of the code compiled before the second method with the address of the newly compiled address, and stores the instruction code to the changed address. The VM(710) calls the second method by directly branching to the address of the newly compiled code of the second method at the stored address if the first method is executed. If the instruction of the first method is the last instruction of the first method, the direct call information managing module updates the address of the code compiled before the first method with the address of the newly compiled code by tracking a location of the code calling the first method.
Patent KR-20060105599-A (KR)
Inventor: LEE YEONG GWAN
IPC: B65B31/04
Filed: 2006-03-30
Abstract: 포장물이 투입된 포장팩을 낱개로 포장시 포장공정이 하나의 장치에서 순차적으로 이루어도록 구조를 단순화시키기 위한 포장물 포장장치가 개시된다. 포장물 포장장치는 컨베이어벨트를 갖는 본체를 구비한다. 본체의 우측에는 내부에 진공 및 가스주입을 위한 진공 및 가스주입부를 구비한 케이스가 구비된다. 케이스의 전면에는 포장팩에 진공 및 가스를 주입하도록 본체 방향으로 이송시키기 위한 제 1이송수단이 설치된다. 본체의 전면에는 진공 및 가스주입이 완료된 포장팩을 본체 방향으로 이송시키도록 제 1이송수단과 연결되는 제 2이송수단이 설치된다. 본체의 이송경로상에는 포장팩의 개방부를 열융착시켜 봉합하기 위한 히터부재를 갖는 실링부가 구비된다. 본체의 하부에는 진공 및 가스주입부 및 제 2이송수단과 연결되어 이들을 구동시키기 위한 제 1,2구동모터가 구비된다. 이와 같이 구성된 포장물 포장장치는 포장팩의 개방부에 실링하기 위한 실링장치와 진공 및 가스를 주입하기 위한 진공 및 가스주입장치를 일체화하여 구조를 단순화시킴으로써, 포장속도의 증속을 통한 포장능율을 향상시켜 제품원가를 저감시키고, 구조의 단순화를 통한 소형화 및 경량화를 구현하여 제작비를 저감시킬 수 있다. 
       
     포장물, 포장장치, 포장팩