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公开(公告)号：US09702948B2
公开(公告)日：2017-07-11
申请号：US14279662
申请日：2014-05-16
发明人： Oh-soo Kwon , Ju-hyung Lee , Man-ho Jeong
IPC分类号： G01R33/34 , G01R33/341 , G01R33/345
CPC分类号： G01R33/34007 , G01R33/34076 , G01R33/341 , G01R33/3453 , Y10T29/49018
摘要： A magnetic resonance imaging (MRI) system comprises, a main magnet, a gradient coil and an RF coil. The main magnet generates a static magnetic field, the gradient coil which is formed inside the main magnet and generates a gradient magnetic field and the RF coil. The RF coil is formed inside the gradient coil and comprises a plurality of different components including: a former supporting the plurality of different components including windings and having a first area and a second area and a groove formed in the second area and in which a component of the RF coil is installed and inset, reducing thickness of the RF coil.
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公开(公告)号：US10381142B2
公开(公告)日：2019-08-13
申请号：US14489063
申请日：2014-09-17
发明人： Oh-soo Kwon , Do-woon Kim , Jae-hyun Shin
IPC分类号： F25B9/00 , F25B9/10 , F25B9/14 , F17C3/08 , H01F6/04 , H01F6/06 , G01R33/38 , F17C5/04 , F25D3/10 , G01R33/3815
摘要： Provided are a cryogen recondensing system and a superconducting magnet apparatus including the same. The cryogen recondensing system includes a primary reservoir that stores cryogen for cooling a superconducting coil; a refrigerator that recondenses gas cryogen of cryogen stored in the primary reservoir; a secondary reservoir that stores gas cryogen; and a secondary reservoir tube that connects the primary reservoir to the secondary reservoir, through which the gas cryogen flows.
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公开(公告)号：US09791524B2
公开(公告)日：2017-10-17
申请号：US13863637
申请日：2013-04-16
发明人： Oh-soo Kwon
CPC分类号： G01R33/34 , G01R33/283
摘要： A magnetic resonance imaging (MRI) acoustic system includes a magnet; an electro-acoustic transducer that includes a coil through which a current flows so that an attractive force or a repulsive force is generated with respect to the magnet, and a vibrating plate that vibrates in response to the attractive force or the repulsive force; and a controller that controls an intensity of a current input to the electro-acoustic transducer according to a position of the electro-acoustic transducer in a magnetic field generated by the magnet.
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公开(公告)号：US09702947B2
公开(公告)日：2017-07-11
申请号：US14459839
申请日：2014-08-14
发明人： Oh-soo Kwon
CPC分类号： G01R33/283 , A61B5/055
摘要： Provided is magnetic resonance imaging (MRI) acoustic system that includes a magnet that is included in a bore having an image-taking space where an object is able to be accommodated and that forms a magnetic field in the image-taking space to obtain an MR image of the object, an electro-acoustic transducer that is located outside of the bore, and includes coils through which a current for generating an attraction force or a repulsion force with respect to the magnetic field generated by the magnet and a vibrating plate that vibrates in response to the an attraction force or the repulsion force, and a controller that controls the intensity of the current inputted to the electro-acoustic transducer to generate a sound by using the magnetic field that is generated by the magnet.
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