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Browse by Category: Main > Information Technology
Class Information
Number: 360/99.12
Name: Dynamic magnetic information storage or retrieval > Record transport with head stationary during transducing > Disk record > Disk seating
Description: Subject matter including a feature for retaining the disk in or on a disk rotating device.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
5367418 Spin motor assembly that contains an O-ring which supports a disk in both the radial and axial directions Nov. 22, 1994
5333080 Disc clamp shim for a rigid disc drive Jul. 26, 1994
5328271 Hydrodynamic spindle bearing for ultra-slim disk storage unit Jul. 12, 1994
5315463 Disk file having thermal expansion ring for ensuring disk/hub concentricity May. 24, 1994
5311383 Disk driving motor and chucking mechanism for disk drive apparatus May. 10, 1994
5303098 Disc chucking mechanism Apr. 12, 1994
5295030 Low profile disc clamp Mar. 15, 1994
5284391 Apparatus for adjustment of a hydrodynamic spindle bearing assembly Feb. 8, 1994
5257152 Disk drive apparatus having a spindle permitting a thinner disk drive Oct. 26, 1993
5249090 Disk store with device for fixing the disk pack on its hub such that it can be removed Sep. 28, 1993
5243481 Clamp for information storage disk Sep. 7, 1993
5216558 Drawer loading removable cartridge disk drive Jun. 1, 1993
5198944 System for locating and holding a cartridge Mar. 30, 1993
5177731 Disk drive and pickup unit for an optical disk player Jan. 5, 1993
5166920 Disk clamp apparatus Nov. 24, 1992
5162958 Recording and/or reproducing apparatus including mechanism for utilization of a disc-shaped record bearing medium with disc clamping structure having means, for holding the disc which is movab Nov. 10, 1992
5151836 Disk chucking device Sep. 29, 1992
5138606 Disk drive device having a swingable lever carrying pin and positioned in a space between a rotary plate and a magnetic member mounted on the rotary plate Aug. 11, 1992
5136450 Disc pack assembly having a laminate sleeve disposed between a spindle and a disc, for reducing radial disc displacement Aug. 4, 1992
5128818 Stable disc unit having reduced thickness Jul. 7, 1992
5126900 Disk gripping device Jun. 30, 1992
5121272 Apparatus for centering the magnetic disc in a magnetic disc drive Jun. 9, 1992
5107484 Arrangement of recording/reproducing apparatus Apr. 21, 1992
5103358 Disk drive unit having a turntable with a projection to assure proper disk mounting Apr. 7, 1992
5101306 Releasable controlled force clamp for disk storage apparatus Mar. 31, 1992
5089922 Disc drive motor spindle hub for holding a disc and spacer stack firmly in place Feb. 18, 1992
5084796 Disc loading apparatus Jan. 28, 1992
5075808 Retaining clamp for a disc storage apparatus Dec. 24, 1991
5072321 Apparatus for providing uniform attractive force to a magnetic disk hub in a magnetic disk drive Dec. 10, 1991
5060096 Magnetic disc clamping/seating unit Oct. 22, 1991
5056082 Apparatus for clamping removable disks Oct. 8, 1991
5053903 Disk clamp positioning apparatus for information storage disk drive system Oct. 1, 1991
5050158 Magnetic clamp for a disk medium Sep. 17, 1991
5048005 Spindle clamp having a unitary lock member Sep. 10, 1991
5047881 Recording and/or reproducing apparatus Sep. 10, 1991
5031062 Method and apparatus for reducing disk distortion under clamping load in a disk drive apparatus Jul. 9, 1991
5025340 Rotary chuck for centering and retaining data discs Jun. 18, 1991
5014143 Data recording disk chuck mechanism May. 7, 1991
5010427 Apparatus for positioning a magnetic disk on a disk drive Apr. 23, 1991
5006945 Disk player having dual-side playback capability Apr. 9, 1991
4989107 Microfloppy disk drive with centering mechanism Jan. 29, 1991
4965685 Removable cartridge disc drive with radial arm voice coil actuator Oct. 23, 1990
4958839 Disc clamp employing resilient cone for spreading balls Sep. 25, 1990
4959744 Shutter assembled disc cartridge Sep. 25, 1990
4941060 Recording and/or reproducing apparatus utilizing record bearing media of the disc type Jul. 10, 1990
4933785 Disk drive apparatus using dynamic loading/unloading Jun. 12, 1990
4933927 Disk centering method and apparatus for centering disks for disk drives Jun. 12, 1990
4918545 Disk clamp for rigid disk file without radial load Apr. 17, 1990
4910620 Thermal compensation structure for a disk pack module Mar. 20, 1990
4903155 Disc drive Feb. 20, 1990

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