| Patent application number | Description | Published |
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| 20110006056 | MICROWAVE OVEN - A microwave oven is provided. A barrier member prevents airflow provided by a fan assembly from being introduced again to the fan assembly. A separation member divides the airflow provided by the fan assembly to cool a first component and a second component. Thus, the components are efficiently cooled. | 01-13-2011 |
| 20110008161 | FAN - Provided is a fan of a microwave oven. The fan, discharging air in two directions, cools a plurality of components. Thus, the components are cooled with more simple configuration. | 01-13-2011 |
| 20110017729 | MIRCOWAVE OVEN - A microwave oven is provided. A component generating relatively high temperature heat and a component generating a relatively low temperature heat are cooled by airflow divided and provided by a cooling part, thereby improving operation reliability and durability of a product. | 01-27-2011 |
| 20110049135 | MICROWAVE OVEN - A microwave oven is provided. A reinforcing part is provided to a multi-hole part for transferring the heat of a heater to a cooking chamber. This prevents deformation of the multi-hole part due to the heat of the heater. | 03-03-2011 |
| 20110147378 | MICROWAVE OVEN - A microwave oven includes a cavity having a cooking chamber; a magnetron oscillating microwave radiation used for cooking food in the cooking chamber; and a plurality of radiation openings through which the microwave radiation is radiated into the cooking chamber, each of the radiation openings having a length in a direction where the microwave radiation is guided by a waveguide, the length being greater or less than λ/4. | 06-23-2011 |
| Patent application number | Description | Published |
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| 20080265874 | TEST HANDLER - A test handler includes a loading unit for loading semiconductor devices from customer trays onto a test tray; a test chamber for performing a test for the semiconductor devices loaded on the test tray; a pushing unit having at least one pushing member for pushing the test tray located in the test chamber to be tested, and a press unit for operating the pushing member; a position control unit for adjusting a position of the pushing member to compensate a deviation between the pushing member and the test tray due to a thermal expansion or contraction of any one of the pushing member and the test tray; and an unloading unit for unloading the semiconductor devices loaded on the test tray onto the customer trays after a test for the semiconductor devices is completed. | 10-30-2008 |
| 20090153178 | METHOD FOR TRANSFERRING TEST TRAYS IN A SIDE-DOCKING TYPE TEST HANDLER - The present invention relates to a test tray for a test handler. According to this invention, there is disclosed a technique that an insert loaded in a loading part which is arranged in a matrix pattern in a frame of the test tray allows an amount and direction of free movement thereof to be determined in accordance with a location of the loading part, where the insert is loaded, on the matrix, thereby enabling a thermal expansion or contraction of a match plate or the test tray to be compensated. | 06-18-2009 |
| 20090196719 | INSERT FOR CARRIER BOARD OF TEST HANDLER - An insert for a carrier board of a test handler is disclosed. The insert pocket having hooks is detachably coupled to the insert body. The insert body can be reused. The latch apparatus is installed to the insert pocket, so that the damaged latch apparatus can be easily replaced. The insert has a plurality of holes in the bottom of the loading part thereof, to expose the leads of the semiconductor devices through the holes in the lower direction. Thus, the insert can load semiconductor devices regardless of the sizes of the semiconductor devices. | 08-06-2009 |
| 20100320348 | OPENER AND BUFFER TABLE FOR TEST HANDLER - An opener and a buffer table for a test handler are disclosed. The opener includes an opening plate, a plurality of pin blocks forming pairs, and at least one or more interval retaining apparatus for retaining an interval between the pin blocks forming a pair. Each of the pin blocks is movably coupled to the opening plate, and includes opening pins for releasing a holding state of a holding apparatus that holds semiconductor devices in a carrier board. Although semiconductor devices to be tested are altered in size and a carrier board loading with the semiconductor devices is thus replaced, the opener does not need to be replaced, thereby reducing the replacement cost and the waste of resources. | 12-23-2010 |
| Patent application number | Description | Published |
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| 20090101003 | Reciprocating compressor - A reciprocating compressor comprises: a cylinder having an oil pocket on an inner circumferential surface of a piston insertion hole for inserting a piston with a predetermined width and depth; and a piston having a bearing portion protruding so as to slidably contact an inner circumferential surface of the piston insertion hole, and inserted into the piston insertion hole of the cylinder, wherein the bearing portion is formed to have a length shorter than that of the oil pocket of the cylinder. Accordingly, a frictional loss between the cylinder and the piston is reduced. | 04-23-2009 |
| 20100121910 | Method and System for Transmitting Data Using Traffic Distribution for Each Line Between Server and Client Connected by Virtual Interface - The present invention discloses a method comprising a first step of the client transmitting a bandwidth test request signal to the server; a second step of the server transmitting a test request approval signal to the client; a third step of the client conducting a bandwidth test for respective lines; a fourth step of the client transmitting results of the bandwidth test to the server; fifth step of the server setting first traffic distribution weights; a sixth step of the client setting second traffic distribution weights; a seventh step of the server distributing data to respective lines depending on the first traffic distribution weights and transmitting the distributed data to the client and the client distributing data to respective lines depending on the second traffic distribution weights and transmitting the distributed data to the server. | 05-13-2010 |
| 20100242721 | LINEAR COMPRESSOR - The present invention provides a linear compressor, including: a cylinder having a compression space of refrigerant therein; a piston linearly reciprocated inside the cylinder to compress the refrigerant; a supporter connected to the back of the piston; a plurality of front and rear main springs for elastically supporting the supporter; a motor cover installed at the front of the supporter with a predetermined interval in an axis direction to support the front main springs, a pair of supporting ends being formed by partially cutting an inner portion of the motor cover and bent backward; and a rear cover installed at the back of the supporter with a predetermined interval in an axis direction to support the rear main springs, and fixedly welded to the supporting ends of the motor cover. Unnecessary parts of the motor cover can be welded to the rear cover to prevent a material loss, and a mass-production process can be simplified to improve productivity. | 09-30-2010 |
| 20100260635 | DISCHARGE VALVE FOR LINEAR COMPRESSOR - A discharge valve is adapted to a linear compressor which is elastically supported in an axial direction by a discharge valve spring and which opens/closes a compression space defined between a cylinder and a piston, the discharge valve comprising: a body made from a metal material; and a coating layer made from a plastic material to wrap the body. The linear compressor provided with such a discharge valve is ensured with a satisfactory level of strength with less use of materials. | 10-14-2010 |
