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Class Information
Number: 428/840.1
Name: Stock material or miscellaneous articles > Magnetic recording component or stock > Binder media > Single magnetic layer with underlayer > Underlayer composition or structure
Description: Subject matter in which the medium has the chemical composition or arrangement of atoms of molecules of one or more of the underlayers specified.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7553565 |
Magnetic recording medium |
Jun. 30, 2009 |
| 7541105 |
Epitaxial ferroelectric and magnetic recording structures including graded lattice matching layers |
Jun. 2, 2009 |
| 7501194 |
Magnetic recording media with non-magnetic support and radiation cured layer |
Mar. 10, 2009 |
| 7474505 |
Magnetic tape medium |
Jan. 6, 2009 |
| 7348079 |
Magnetic recording medium |
Mar. 25, 2008 |
| 7344786 |
Magnetic recording medium including a smooth coating layer on one side of the support |
Mar. 18, 2008 |
| 7341798 |
Magnetic tape medium |
Mar. 11, 2008 |
| 7282279 |
Magnetic recording medium including a radiation-cured material layer having a specified structure and composition |
Oct. 16, 2007 |
| 7259935 |
Magnetic tape including an intermediate layer consisting essentially of a binder |
Aug. 21, 2007 |
| 7141319 |
Method for processing the surface of an insulating article, printer head and substrate for recording medium |
Nov. 28, 2006 |
| 7060340 |
Magnetic recording medium |
Jun. 13, 2006 |
| 7045227 |
Magnetic recording medium |
May. 16, 2006 |
| 7041395 |
Magnetic recording medium |
May. 9, 2006 |
| 7026064 |
Polyester film and method for producing the same |
Apr. 11, 2006 |
| 7022424 |
Magnetic recording medium |
Apr. 4, 2006 |
| 6846555 |
Magnetic recording medium |
Jan. 25, 2005 |
| 6753076 |
Forgery-preventive identification medium and method for ascertaining the genuineness thereof |
Jun. 22, 2004 |
| 6602572 |
Magnetic recording media having a specific width relationship between the magnetic coat and primer coat and producing method thereof |
Aug. 5, 2003 |
| 6495252 |
Magnetic recording medium with superparamagnetic underlayer |
Dec. 17, 2002 |
| 6479131 |
Magnetic recording medium |
Nov. 12, 2002 |
| 6458452 |
Titanium oxide particles, substrate for magnetic recording medium and magnetic recording medium using the same |
Oct. 1, 2002 |
| 6403203 |
Magnetic recording medium and magnetic recording apparatus using the same |
Jun. 11, 2002 |
| 6387483 |
Perpendicular magnetic recording medium and manufacturing process therefor |
May. 14, 2002 |
| 6248489 |
Electrophotographic photosensitive body, intermediate transfer medium, and electrophotographic apparatus |
Jun. 19, 2001 |
| 6214530 |
Base film with a conductive layer and a magnetic layer |
Apr. 10, 2001 |
| 6210775 |
Magnetic recording medium |
Apr. 3, 2001 |
| 6162528 |
Magnetic recording medium and method for manufacturing the same |
Dec. 19, 2000 |
| 6103340 |
Magnetic recording medium |
Aug. 15, 2000 |
| 6051308 |
Magnetic recording medium and process for its production |
Apr. 18, 2000 |
| 6037037 |
Magnetic recording medium |
Mar. 14, 2000 |
| 5851622 |
Magnetic recording medium |
Dec. 22, 1998 |
| 5830557 |
Non-magnetic undercoating layer for magnetic recording medium, magnetic recording medium and non-magnetic particles |
Nov. 3, 1998 |
| 5827600 |
Magnetic recording medium |
Oct. 27, 1998 |
| 5811166 |
Magnetic recording medium |
Sep. 22, 1998 |
| 5811172 |
Magnetic recording medium |
Sep. 22, 1998 |
| 5795646 |
Magnetic recording medium |
Aug. 18, 1998 |
| 5795642 |
Magnetic recording medium |
Aug. 18, 1998 |
| 5792543 |
Magnetic recording medium |
Aug. 11, 1998 |
| 5780141 |
Magnetic recording medium |
Jul. 14, 1998 |
| 5763046 |
Magnetic recording medium |
Jun. 9, 1998 |
| 5750250 |
Hematite particles and magnetic recording medium having a non-magnetic under-coat layer containing hematite (Fe.sub.2 O.sub.3) particles. |
May. 12, 1998 |
| 5744216 |
Magnetic recording medium having an underlayer with cobalt containing particles of alpha Fe.sub.2 O.sub.3 or alpha FeOOH |
Apr. 28, 1998 |
| 5712028 |
Magnetic recording medium |
Jan. 27, 1998 |
| 5645917 |
Magnetic recording medium |
Jul. 8, 1997 |
| 5541008 |
Magnetic recording medium |
Jul. 30, 1996 |
| 5514464 |
Magnetic recording medium |
May. 7, 1996 |
| 5512363 |
Magnetic recording medium having a magnetic layer containing magnetic powder and an underlayer containing two kinds of non magnetic powder |
Apr. 30, 1996 |
| 5501896 |
Magnetic recording medium |
Mar. 26, 1996 |
| 5496622 |
Magnetic recording medium comprising an underlayer containing .alpha.-iron oxide powder and a magnetic layer containing ferromagnetic metallic powder |
Mar. 5, 1996 |
| 5489466 |
Magnetic recording medium comprising a lower nonmagnetic layer containing a surface coated inorganic powder and an upper magetic layer |
Feb. 6, 1996 |
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