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Class Information
Number: 720/710
Name: Dynamic optical information storage or retrieval > Dynamic mechanism optical subsystem > Optical storage medium support (i.e., turntable or spindle motor) > Optical storage disc holding structure > Details of clamping > Magnetic
Description: Subject matter wherein the clamper mechanism includes magnetic material for securing the optical storage medium.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8677382 Disc clamping mechanism by which a disc is held and rotated Mar. 18, 2014
8566854 Apparatus for rotating disk with improved anti-slip torque Oct. 22, 2013
8566853 Turn table having a clamping plate with a locking protrusion Oct. 22, 2013
8490122 Disc chucking method and disc driving apparatus Jul. 16, 2013
8438588 Turntable for a storage disk apparatus including ferromagnetic material and a resin member May. 7, 2013
8352975 Chucking device with a cone including a sliding portion, brushless motor using the same, and disk drive apparatus using the same Jan. 8, 2013
8307385 Mounting device for disk in spindle motor Nov. 6, 2012
8281331 Data storage medium support member, chucking device, brushless motor, and disc drive apparatus Oct. 2, 2012
8139317 Disk drive device which includes a clamping magnet for attracting a disk Mar. 20, 2012
8132197 Mounting objects on a turntable Mar. 6, 2012
8099744 Disk device Jan. 17, 2012
8095947 Motor and disk driver having the same Jan. 10, 2012
8082562 Mounting device for disk in spindle motor Dec. 20, 2011
8082561 Motor provided with chucking device and disk driving device equipped with the motor Dec. 20, 2011
8056097 Disk recording and/or reproducing apparatus Nov. 8, 2011
8001558 Clamping apparatus for a disc player Aug. 16, 2011
7913268 Motor and manufacturing method of the same Mar. 22, 2011
7873971 Motor having chucking device and disk driving apparatus including same Jan. 18, 2011
7757246 Disc apparatus with clamp holder having top surface of first flange higher than top surface of second flange Jul. 13, 2010
7409697 Electronic apparatus including disk device Aug. 5, 2008
7403381 Mounting device for data storage device Jul. 22, 2008
7263706 Disk cartridge and disk player using the same Aug. 28, 2007
7263704 Disk clamper and method of assembling the same Aug. 28, 2007
7254822 Disk drive avoiding flying disk Aug. 7, 2007
7213252 Disk transfer device including disk support member provided with a first and second disk support members for supporting different size disks May. 1, 2007
7047544 Optical disk drive and recording and reproducing apparatus with magnetic clamping May. 16, 2006
7047543 Optical disk clamping device May. 16, 2006
7013475 Optical disk drive and recording and reproducing apparatus with magnetic clamping Mar. 14, 2006
6938265 Turntable for disk storage medium and disk drive including the turntable Aug. 30, 2005
6877165 Optical disk drive and recording and reproducing apparatus with magnetic clamping Apr. 5, 2005
6874155 Chucking apparatus of disk player Mar. 29, 2005
6826772 Disk clamping apparatus for disk player Nov. 30, 2004
6799324 Disc driving apparatus Sep. 28, 2004
6757238 Disc clamping device Jun. 29, 2004
6728189 Disk loader Apr. 27, 2004
6721263 Disk holding mechanism and disk holding mechanism clamper Apr. 13, 2004
6697320 Clamping device with variable clamping force Feb. 24, 2004
6570836 Disk clamping mechanism May. 27, 2003
6529468 Optical disk driving device having a clamper for correcting warpage of an optical disk Mar. 4, 2003
6388983 Clamp mechanism for disk drive May. 14, 2002
6373813 Apparatus for activating a disk clamper by magnetic restoring force Apr. 16, 2002
6324154 Automatic disc-changing apparatus, disc-chucking apparatus, disc apparatus and position-detecting apparatus Nov. 27, 2001
6316854 Automatic up-and-down disc clamping apparatus with magnets Nov. 13, 2001
6317406 Device for gripping and holding a flat substrate Nov. 13, 2001
6297931 Recording disk with round spindle hole in magnetic hub and prerecorded tracking servo information Oct. 2, 2001
6292456 Apparatus for activating a disk clamper by magnetic restoring force Sep. 18, 2001
6252842 Disc for recording information signals and disc chucking device Jun. 26, 2001
6163520 Disc chucking mechanism Dec. 19, 2000
5748606 Optical disc player device with a vibration prevention mechanism May. 5, 1998
5731929 Disk recording/reproduction apparatus with disk clamp mechanism comprising a caddie holding a first disk and a spindle centering a second disk Mar. 24, 1998

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