Patent application number | Description | Published |
20150107719 | PARTIAL HEAT-TREATMENT METHOD USING DOUBLE METAL LAYER - Disclosed herein is a partial heat treatment method using a double metal layer, in which a surface of a workpiece is hardened by heat treatment, including the steps of: primarily plating the surface of the workpiece with a first metal layer; secondarily plating the surface of the first metal layer with a second metal layer; partially stripping the first metal layer and the second metal layer to expose a part of the surface of the workpiece; heat-treating the workpiece to harden the exposed surface of the workpiece; and removing the first metal layer and the second metal layer remaining on the surface of the workpiece. | 04-23-2015 |
20150107720 | PARTIALLY CARBONITRIDING HEAT TREATED STAINLESS STEEL FERRULE AND MANUFACTURING METHOD THEREOF - This invention relates to a partially carbonitriding heat treated stainless steel ferrule, having a first region with a first hardness and a second region with a second hardness, wherein the first region includes a nitrogen layer having a nitrogen concentration higher than a carbon concentration, and a carbon layer formed under the nitrogen layer and having a carbon concentration higher than a nitrogen concentration, so that the first hardness is greater than the second hardness. Thereby, partial heat treatment is effective at preventing rotational torque of the region, except for the portion to be heat treated, from increasing due to the total hardening. | 04-23-2015 |
20150107723 | PARTIALLY CARBONITRIDING HEAT TREATED STAINLESS STEEL FERRULE AND MANUFACTURING METHOD THEREOF - This invention relates to a partially carbonitriding heat treated stainless steel ferrule, having a first region with a first hardness and a second region with a second hardness, wherein the first region includes a nitrogen layer having a nitrogen concentration higher than a carbon concentration, and a carbon layer formed under the nitrogen layer and having a carbon concentration higher than a nitrogen concentration, so that the first hardness is greater than the second hardness. Thereby, partial heat treatment is effective at preventing rotational torque of the region, except for the portion to be heat treated, from increasing due to the total hardening. | 04-23-2015 |
20150176113 | PARTIAL HEAT TREATMENT METHOD IN SALT BATH AT LOW TEMPERATURE - This invention relates to a surface heat treatment method in a salt bath at low temperature, suitable for partially hardening the surface of a workpiece through heat treatment, including plating the surface of a workpiece with a first metal layer; partially peeling the first metal layer; heat treating the workpiece at a temperature of 400 to 500° C. for a predetermined period of time; and totally peeling the first metal layer. Thereby, low-temperature heat treatment is effective at heat treating the workpiece while minimizing deterioration of corrosion resistance. | 06-25-2015 |
Patent application number | Description | Published |
20080225678 | FERROELECTRIC RECORDING MEDIUM AND WRITING METHOD FOR THE SAME - A ferroelectric recording medium and a writing method for the same are provided. The ferroelectric recording medium includes a ferroelectric layer which reverses its polarization when receiving a predetermined coercive voltage. A nonvolatile anisotrophic conduction layer is formed on the ferroelectric layer. A resistance of the anisotrophic conduction layer decreases when receiving a first voltage lower than the coercive voltage, and the resistance of the anisotrophic conduction layer increases when receiving a second voltage higher than the coercive voltage. Multi-bit information is stored by a combination of polarization states of the ferroelectric layer and the resistance of the anisotrophic conduction layer. Accordingly, multiple bits can be expressed on one domain of the ferroelectric recording medium. | 09-18-2008 |
20080231999 | TUNNELING MAGNETORESISTIVE DEVICE AND MAGNETIC HEAD COMPRISING THE SAME - A tunneling magnetoresistive device and a magnetic head including the tunneling magnetoresistive device are provided. The tunneling magnetoresistive device includes a pinned layer and a free layer formed on either side of a tunneling barrier layer, wherein the tunneling barrier layer includes Te—O. | 09-25-2008 |
20090067098 | PERPENDICULAR MAGNETIC RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME - A perpendicular magnetic recording (PMR) head and a method of manufacturing the same are provided. The PMR head includes: a main pole; a coil enclosing the main pole as a solenoid type to allow the main pole to generate a magnetic field required for recording data on a recording medium; and a return yoke forming a magnetic path of a magnetic field together with the main pole and having a throat disposed opposite the main pole with a gap between the return yoke and the main pole. One end of the gap disposed near an air bearing surface (ABS) is thinner than the other end of the gap, such that the throat tapers from the other end of the gap to the one end of the gap. | 03-12-2009 |
20090116144 | PERPENDICULAR MAGNETIC RECORDING HEAD AND METHOD OF MANUFACTURING THE SAME - Provided are a perpendicular magnetic recording head and a method of manufacturing the same. The perpendicular magnetic recording head includes a main pole including a pole tip applying a recording magnetic field to a recording medium, a coil surrounding the main pole in a solenoid shape such that recording magnetic field for recording information to a recording medium is generated at the pole tip, and a return yoke forming a magnetic path for the recording magnetic field together with the main pole and surrounding a portion of the coil passing above the main pole. The number of times that the coil passes above the main pole is smaller than the number of times that the coil passes below the main pole. | 05-07-2009 |
20130075359 | Perpendicular Magnetic Recording Head and Method of Manufacturing the Same - Provided are a perpendicular magnetic recording head and a method of manufacturing the same. The perpendicular magnetic recording head includes a main pole including a pole tip applying a recording magnetic field to a recording medium, a coil surrounding the main pole in a solenoid shape such that recording magnetic field for recording information to a recording medium is generated at the pole tip, and a return yoke forming a magnetic path for the recording magnetic field together with the main pole and surrounding a portion of the coil passing above the main pole. The number of times that the coil passes above the main pole is smaller than the number of times that the coil passes below the main pole. | 03-28-2013 |
Patent application number | Description | Published |
20120146673 | METHOD AND EQUIPMENT FOR TESTING SEMICONDUCTOR APPARATUSES SIMULTANEOUSLY AND CONTINUOUSLY - A method for testing a plurality of semiconductor apparatuses, the method including mounting a plurality of semiconductor apparatuses on a first test board, wherein the plurality of semiconductor apparatuses include test circuits, loading test software into the test circuits, performing, by using the test circuits, self-tests on the plurality of semiconductor apparatuses based on the test software, and removing the plurality of semiconductor apparatuses, which have completed the self-tests, from the first test board. Upon completion of the loading of the test software, the test software is loaded into test circuits of a plurality of semiconductor apparatuses on a second test board, while the self-tests are performed on the plurality of semiconductor apparatuses on the first test board. | 06-14-2012 |
20150198658 | METHOD AND EQUIPMENT FOR TESTING SEMICONDUCTOR APPARATUSES SIMULTANEOUSLY AND CONTINUOUSLY - A method for testing a plurality of semiconductor apparatuses, the method including mounting a plurality of semiconductor apparatuses on a first test board, wherein the plurality of semiconductor apparatuses include test circuits, loading test software into the test circuits, performing, by using the test circuits, self-tests on the plurality of semiconductor apparatuses based on the test software, and removing the plurality of semiconductor apparatuses, Which have completed the self-tests, from the first test board. Upon completion of the loading of the test software, the test software is loaded into test circuits of a plurality of semiconductor apparatuses on a second test board, while the self-tests are performed on the plurality of semiconductor apparatuses on the first test board. | 07-16-2015 |
Patent application number | Description | Published |
20150040709 | ORGAN TYPE ELECTRONIC SHIFT LEVER - Disposed is an organ type electronic shift lever formed on a console surface at a periphery of a driver seat in a vehicle. The electronic shift lever may include a step motor coupled to the console surface and having both ends to which motor rotation shafts are connected, a pair of lever arms each having one end rotatably coupled to one or each of the motor rotation shafts, a pair of lever pins each rotatably coupled to the other end of one or each of the lever arms, a shift lever having side portions rotatably connected to the lever arms by the lever pins and a rear end to which a magnetic unit is coupled, a display unit formed on the shift lever, and a recognition sensor formed in the console surface and sensing a position of the magnetic unit. When the shift lever is moved forward or rearward while forming an inclination angle with the console surface, a gear shift stage of the vehicle is changed. | 02-12-2015 |
20150135877 | ORGAN TYPE ELECTRONIC AUTOMATIC SHIFT LEVER - An organ type electronic automatic shift lever may include a shift lever portion, a step motor unit, an operating arm, a position recognition unit, and a gear shift stage control unit. The shift lever portion may have a lower end at which a magnetic unit is mounted. The step motor unit may be fixed on a console surface of a vehicle and include a step motor. The operating arm may be rotatably connected to the shift lever portion and the step motor. The position recognition unit may recognize a position of the magnetic unit and output information of the recognized position. The gear shift stage control unit may control the step motor unit, preset position recognition information, compare position information and output gear shift information. | 05-21-2015 |
20150251534 | UNIFIED ELECTRONIC AUTOMATIC TRANSMISSION LEVER - A unified electronic shift lever may include a first selection unit installed on a dashboard of a vehicle, and on which various selectable options including a gear shift option of the vehicle are indicated, a second selection unit installed on an upper portion of the first selection unit, and on which sub-options of the various selectable options selected at the first selection unit are indicated, a display unit disposed on an upper portion of the second selection unit and displaying options selected at the first selection unit and the second selection unit, and a control unit disposed below the dashboard, identifying operations of the first selection unit and the second selection unit to control various types of options of the vehicle, and changing indication on the second selection unit and the display unit. | 09-10-2015 |
20150276048 | FOLDING FAN TYPE ELECTRONIC SHIFT LEVER - A folding fan type electronic shift lever may include a plurality of gear shift units disposed on a console surface of a vehicle, a console fixing pin penetrating a hole formed at a side of each of the plurality of gear shift units, an operating unit connected to one or more gear shift units of the plurality of gear shift units, and operated to allow the plurality of gear shift units to be rotated about the console fixing pin, and a control unit disposed on a lower portion of the console surface of the vehicle, receiving operational signals sent from the plurality of gear shift units through the console fixing pin, and transmitting the operational signals to a transmission control unit (TCU) of the vehicle. | 10-01-2015 |
20150292614 | CUBE-TYPE ELECTRONIC AUTOMATIC TRANSMISSION - A cube type electronic shift lever including a shift lever panel mounted on a console surface or a center fascia of a vehicle, and having a seating unit including a plurality of position fixing magnets, a plurality of cube type buttons including metallic plates coupled to lower portions of the plurality of cube type buttons, the plurality of cube type buttons being detachably installed on the seating unit of the shift lever panel, an operating unit embedded in each of the plurality of cube type buttons, and sending operational signals generated by the each of the plurality of cube type buttons, and a control unit configured to transmit the operational signals sent by each of the plurality of cube type buttons to a transmission control unit (TCU) or an electronic control unit (ECU) of the vehicle, in which shapes and functions of the cube type buttons are arbitrarily selected. | 10-15-2015 |