| Patent Number |
Title Of Patent |
Date Issued |
| 6893735 |
Magnetic recording medium with anti-ferromagnetically coupled magnetic layers, and magnetic stor |
May 17, 2005 |
| A magnetic recording medium includes a nonmagnetic underlayer, an initial magnetic layer, a nonmagnetic spacer layer provided on the initial magnetic layer, and a final magnetic layer provided on the nonmagnetic spacer layer. The initial magnetic layer is disposed closer to the nonma |
| 6828047 |
Magnetic recording medium and magnetic storage apparatus |
December 7, 2004 |
| A magnetic recording medium is constructed to include a substrate, a magnetic layer made of a Co or Co-based alloy, and an underlayer disposed between the substrate and the magnetic layer. The underlayer is made of an ordered intermetallic material of FCC L1.sub.2 or FCT L1.sub.0 crystal |
| 6821652 |
Magnetic recording medium and magnetic storage apparatus |
November 23, 2004 |
| A magnetic recording medium is constructed to include at least one exchange layer structure, and a magnetic layer formed on the exchange layer structure, where the exchange layer structure comprises a ferromagnetic layer, and a non-magnetic coupling layer provided on the ferromagnetic |
| 6773833 |
Magnetic storage medium having improved thermal stability and a magnetic storage device using su |
August 10, 2004 |
| A magnetic storage medium includes first and second magnetic layers provided on a support substrate such that the first and second magnetic layers have respective first and second magnetizations in an anti-parallel relationship in a state no substantial writing magnetic field is applied. |
| 6753101 |
Magnetic recording medium, magnetic storage apparatus, recording method and method of producing |
June 22, 2004 |
| A magnetic recording medium is provided with at least one exchange layer structure, and a magnetic layer formed on the exchange layer structure. The exchange layer structure includes a ferromagnetic layer and a non-magnetic coupling layer provided on the ferromagnetic layer and under |
| 6689495 |
Magnetic recording medium and magnetic storage apparatus |
February 10, 2004 |
| A magnetic recording medium is constructed to include at least one exchange layer structure and a magnetic layer provided on the exchange layer structure. The exchange layer structure includes a ferromagnetic layer and a non-magnetic coupling layer provided on the ferromagnetic layer. At |
| 6645646 |
Magnetic recording medium and magnetic storage apparatus |
November 11, 2003 |
| A magnetic recording medium is constructed to include at least one exchange layer structure and a magnetic layer provided on the exchange layer structure, where the exchange layer structure includes a ferromagnetic layer and a non-magnetic coupling layer provided on the ferromagnetic |
| 6623875 |
Magnetic recording medium and magnetic storage apparatus |
September 23, 2003 |
| A magnetic recording medium includes at least one magnetic layer, a ferromagnetic layer, a nonmagnetic coupling layer provided between the magnetic layer and the ferromagnetic layer, and a coupling intensifying region which intensifies an exchange coupling strength between the magnet |
| 6613460 |
Magnetic recording medium and magnetic storage apparatus |
September 2, 2003 |
| A magnetic recording medium is constructed to include a substrate, a magnetic layer made of a Co or Co-based alloy, and an underlayer disposed between the substrate and the magnetic layer. The underlayer is made of an ordered intermetallic material of FCC L1.sub.2 or FCT L1.sub.0 crystal |
| 6610424 |
Magnetic recording medium and magnetic storage apparatus |
August 26, 2003 |
| A magnetic recording medium provided with a substrate and a magnetic layer disposed above the substrate, is characterized by the magnetic layer which includes an initial layer located closer to the substrate and a final layer located further away from the substrate than the initial layer |
| 6602612 |
Magnetic recording medium and magnetic storage apparatus |
August 5, 2003 |
| A magnetic recording medium is provided with at least one exchange layer structure, and a magnetic layer formed on the exchange layer structure. The exchange layer structure includes a ferromagnetic layer, and a non-magnetic coupling layer provided on the ferromagnetic layer and under |
| 6562489 |
Magnetic recording medium and magnetic storage apparatus |
May 13, 2003 |
| A magnetic recording medium is constructed to include a substrate, a magnetic layer made of a Co or Co-based alloy, and an underlayer disposed between the substrate and the magnetic layer. The underlayer is made of an ordered intermetallic material of FCC L1.sub.2 or FCT L1.sub.0 crystal |
