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Class Information
Number: 492/8
Name: Roll or roller > With magnetic means, per se
Description: Roll which includes specific magnet or electromagnetic structure.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8500615 Magnetic roller and manufacturing method thereof, developer carrier, development device, processing cartridge, and image forming apparatus Aug. 6, 2013
8499687 Cylinder body for orienting magnetic flakes contained in an ink or varnish vehicle applied on a sheet-like or web-like substrate Aug. 6, 2013
8303837 Rotating machine, bonded magnet, magnet roll, and method for producing sintered ferrite magnet Nov. 6, 2012
8276511 Apparatus for orienting magnetic flakes Oct. 2, 2012
8083657 Deflection compensating roll Dec. 27, 2011
8020852 Device for the torque limitation in a machine for processing means of payment Sep. 20, 2011
8007425 Suction roller for transporting flat material blanks Aug. 30, 2011
7934451 Apparatus for orienting magnetic flakes May. 3, 2011
7917067 Magnetic field generating member and manufacturing method thereof, magnetic particle support body, image development device, process cartridge and image forming apparatus Mar. 29, 2011
7891094 Method of manufacturing a hollow body used in an image forming apparatus Feb. 22, 2011
7662078 Method for creating a uniform nip pressure utilizing a compliant pressure roller Feb. 16, 2010
7503367 Belt and tread drum Mar. 17, 2009
7258654 Compliant pressure roller with uniform nip pressure Aug. 21, 2007
7156797 Assembling method for developing roller Jan. 2, 2007
6671484 Image forming apparatus having developing device with magnet roller with particular magnetic flux density Dec. 30, 2003
6654582 Magnetic roll assembly Nov. 25, 2003
6544157 Device for driving rollers in automatic machines Apr. 8, 2003
6544156 Elastomer roll for papermaking machine Apr. 8, 2003
6524227 Roll that can be bent for a web-like material Feb. 25, 2003
6496675 Magnet roller Dec. 17, 2002
6454686 Modular magnetic cylinder Sep. 24, 2002
6422984 Magnetic roll for use in xerographic printing Jul. 23, 2002
6402977 Composition for resin magnet, magnetic member using same and process for producing said magnetic members Jun. 11, 2002
6397747 Magnetic cylinder for printing plate with nonmagnetic shell Jun. 4, 2002
6383407 Bonded magnet, magnet roll, a ferrite powder used therefor and method for producing same May. 7, 2002
6343419 Method of manufacturing magnet assembly with inserts Feb. 5, 2002
6284150 Bonded magnet, magnet roll, a ferrite powder used therefor and method for producing same Sep. 4, 2001
6220542 Polarizing film transport roller Apr. 24, 2001
6132634 Bonded magnet-forming composition and magnet roller using the same Oct. 17, 2000
6105651 Rotary hot foil stamping apparatus Aug. 22, 2000
6102841 Magnetic sleeve for non-interactive agitated magnetic brush development Aug. 15, 2000
6070038 Developing device and developing roller therefor May. 30, 2000
6065210 Magnetotherapeutic back massager and method of making same May. 23, 2000
6034457 Magnetic drive apparatus for web transport Mar. 7, 2000
6032565 Multi-use rotary die plate system Mar. 7, 2000
6021296 Magnet roller and manufacturing method thereof Feb. 1, 2000
5987291 Image forming apparatus and a sheet carrying apparatus Nov. 16, 1999
5965220 Installation for coating the surface of a web with a paste Oct. 12, 1999
5946535 Magnet roller and developing roller using the same Aug. 31, 1999
5938579 Magnetic roller Aug. 17, 1999
5787813 Printing machine with removable components Aug. 4, 1998
5782177 Electromagnetic roller arrangement Jul. 21, 1998
5740738 Gapless blanket cylinder Apr. 21, 1998
5728036 Elongated finned backup rollers having multiple magnetized fins for guiding and stabilizing an endless, flexible, heat-conducting casting belt Mar. 17, 1998
5697277 Multi use rotary die plate system Dec. 16, 1997
5659862 Developer roll for electrophotographic copiers and printers, and process for manufacturing it by powder coating Aug. 19, 1997
5649362 Permanent magnet member and method of producing same Jul. 22, 1997
5621969 Method of fabricating roller therapeutic appliance Apr. 22, 1997
5511476 Magnetic cylinder with surface gripping Apr. 30, 1996
5392702 Magnetic rolling system having rollers with laminated ply units disposed therein Feb. 28, 1995

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