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| Number | Title | Issue Date |
| 8000867 | System for automatically landing aircraft using image signals and method of controlling the same Disclosed herein are a system for automatically landing an aircraft using image signals and a method of controlling the system. The system includes an altimeter installed on the aircraft; a landing mark placed at a landing location on a landing runway; a camera inst... | 08/16/2011 |
| 7946107 | Mixture ratio stabilizer for liquid propellant rocket engine There is provided a mixture ratio stabilizer for a liquid propellant rocket engine which comprises: a body internally having a chamber and a fuel supply hole communicating with an end of the chamber to receive fuel from a fuel supply pump, an oxidizer inlet, and a f... | 05/24/2011 |
| 7581669 | Tool for diffusion bonding of multi sheet metal, method of manufacturing structural part using the same, and structural part manufactured using the method A method of manufacturing a structural part through diffusion bonding in solid state without secondary materials after stacking multi-sheet metal and a tool thereof are disclosed. The tool for diffusion boding of multi-sheet metal includes a top tool having a top ga... | 09/01/2009 |
| 7354240 | Centrifugal turbo machine with axial thrust control member There is provided a centrifugal turbo machine comprising: a volute casing; a rotation axis coupled with the volute casing through a bearing; an impeller which is coupled to an end of the rotation axis and sucks fluid with a centrifugal force due to its rotation; and... | 04/08/2008 |
| 7216543 | Mass measurement system and method using measurement of frequency shift of vibrator The present invention relates to a mass measurement system and method capable of precisely measuring the mass of a sample in a gravity-free environment. The mass measurement system using measurement of frequency shift of a vibrator according to the present invention... | 05/15/2007 |
| 7161096 | Mass measurement system and method using inertial force and standard mass in gravity-free environment The mass measurement system includes a linear acceleration motion unit that is a linear motion driving source, a first load cell fastened to the linear acceleration motion unit to measure an inertial force of a sample caused by linearly accelerated motion of the 10 ... | 01/09/2007 |
| 7107007 | Positioning system for a geostationary satellite A positioning system for a geostationary satellite according to the present invention comprises a plurality of outer orbit satellites revolving around the earth in equatorial orbit and polar orbit having higher altitude than that of the geostationary satellite; and ... | 09/12/2006 |
| 7036303 | Ablative baffle for a liquid rocket engine thrust chamber An ablative baffle for a liquid rocket engine thrust chamber that includes a hub member having a hollow structure, of which both top and bottom parts are open; a plurality of blade rib members, each of which is connected removably at one end to the outer surface of ... | 05/02/2006 |
