| Patent Number |
Title Of Patent |
Date Issued |
| 7616404 |
Magnetic recording medium, magnetic recording and reproducing apparatus, and method for manufact |
November 10, 2009 |
| The magnetic recording medium includes a substrate and a recording layer formed in a predetermined concavo-convex pattern over the substrate, and the recording layer includes recording elements each formed as a convex portion of the recording layer. Surface steps are formed in an inner a |
| 7604880 |
Information recording medium |
October 20, 2009 |
| In an information recording medium where respective concave parts of a magnetic layer, which is formed on at least one side e of a substrate and in which a predetermined convex/concave pattern has been formed, are filled with non-magnetic material and non-magnetic layers are formed by |
| 7554768 |
Information recording medium with concave/convex servo pattern having decreasing unit convex par |
June 30, 2009 |
| On an information recording medium, a data track pattern and a servo pattern composed of a concave/convex pattern including a plurality of convex parts are formed on at least one surface of a substrate and respective concave parts in the concave/convex pattern are filled with non-mag |
| 7538041 |
Magnetic recording medium, method of manufacturing the same, and intermediate for magnetic recor |
May 26, 2009 |
| A magnetic recording medium is provided in which a magnetic recording layer 5 is provided in a predetermined concavo-convex pattern on a substrate 1A, a concave portion in a concavo-convex pattern is filled with a non-magnetic material, and a non-magnetic layer 16 formed of the non-m |
| 7494727 |
Magnetic recording medium and magnetic recording and reproducing apparatus |
February 24, 2009 |
| A magnetic recording medium in which a recording layer is formed in a predetermined concavo-convex pattern and recording and reproducing apparatus comprising the magnetic recording medium are disclosed. The magnetic recording medium has a high areal density and high reliability since |
| 7477485 |
Information recording medium, recording/reproducing apparatus, and stamper |
January 13, 2009 |
| On an information recording medium, a data track pattern and a servo pattern composed of a concave/convex pattern including a plurality of convex parts are formed on at least one surface side of a substrate and respective concave parts in the concave/convex pattern are filled with no |
| 7474506 |
Magnetic recording medium, recording/reproducing apparatus, and stamper |
January 6, 2009 |
| In a magnetic recording medium including a servo pattern region having a servo pattern formed of a concave/convex pattern having convex portions and concave portions and a data recording region, the region having a data track pattern, the concave portions are formed in an address pattern |
| 7463762 |
Next process-determining method, inspecting method and inspecting apparatus |
December 9, 2008 |
| There are provided a next process-determining method capable of determining a next process to be carried out next objectively and at the same time in a short time period, as well as an inspecting method and apparatus which are capable of carrying out a predetermined inspection as to |
| 7438982 |
Magnetic recording medium including disk substrate, magnetic layer, and non-magnetic layer |
October 21, 2008 |
| A magnetic recording medium includes at least a disk substrate, a magnetic recording layer formed with a predetermined concavo-convex pattern on the disk substrate, and a non-magnetic layer formed in concave portions of the concavo-convex pattern. Convex shapes made of a non-magnetic mat |
| 7403355 |
Information recording medium, recording/reproducing apparatus, and stamper |
July 22, 2008 |
| On an information recording medium, a data track pattern and a servo pattern composed of a concave/convex pattern including a plurality of convex parts are formed on at least one surface of a substrate and respective concave parts in the concave/convex pattern are filled with non-mag |
| 7378029 |
Method for manufacturing magnetic recording medium |
May 27, 2008 |
| A method for manufacturing a magnetic recording medium is provided, by which a magnetic recording medium having a recording layer formed in a concavo-convex pattern, a sufficiently flat surface, and high recording and reproducing precision is efficiently manufactured. In a non-magnetic |
| 7362528 |
Magnetic recording medium |
April 22, 2008 |
| A data track area and a servo pattern area are formed on a magnetic recording medium by embedding a nonmagnetic material inside concaves in a plurality of types of convex/concave patterns formed of a magnetic material on a substrate. The servo pattern area includes a plurality of typ |
| 7300595 |
Method for filling concave portions of concavo-convex pattern and method for manufacturing magne |
November 27, 2007 |
| A method for filling concave portions of a concavo-convex pattern by which the concave portions of the concavo-convex pattern can be filled to flatten the surface with reliability, and a method for manufacturing a magnetic recording medium by which a magnetic recording medium having a |
| 7225528 |
Method for manufacturing magnetic recording medium |
June 5, 2007 |
| A method for manufacturing a magnetic recording medium that has a sufficiently flat surface and includes a recording layer having a concavo-convex pattern that provides favorable accuracy of recording and reproduction. The manufacturing method includes the steps of: forming a lower n |
| 7166318 |
Production method and production apparatus for magnetic recording medium |
January 23, 2007 |
| A production method and a production apparatus for a magnetic recording medium, which enable the efficient production of a discrete type magnetic recording medium, while reliably preventing any deterioration of the partitioned recording elements. The magnetic recording medium production |
| 7149338 |
Next process-determining method, inspecting method and inspecting apparatus |
December 12, 2006 |
| There are provided a next process-determining method capable of determining a next process to be carried out next objectively and at the same time in a short time period, as well as an inspecting method and apparatus which are capable of carrying out a predetermined inspection as to |
| 7125615 |
Magnetic recording medium and magnetic recording device |
October 24, 2006 |
| The magnetic recording medium includes a seed layer and a magnetic recording layer formed on the seed layer. The magnetic recording layer is provided with a plurality of laminated layers and a noble metal layer. The laminated layer includes a transition metal element layer and a plat |
