Dynamic information storage or retrieval – Storage or retrieval by simultaneous application of diverse... – Magnetic field and light beam
Reexamination Certificate
2008-09-02
2008-09-02
Feild, Joseph (Department: 2627)
Dynamic information storage or retrieval
Storage or retrieval by simultaneous application of diverse...
Magnetic field and light beam
C369S013350
Reexamination Certificate
active
10465327
ABSTRACT:
An optical recording medium10on which recording/reproducing or reproducing is performed by irradiating a light by means of an objective lens4having a numerical aperture equal to or more than 1 wherein an optical recording portion2is provided at least at the outer most surface at the irradiation side of the optical recording medium10and a relation n≧NA is selected when the refractive index of the recording portion2is n and the numerical aperture of the objective lens4is NA. Accordingly, it can propose an optical recording medium and an optical recording/reproducing method suitable for a near-field optical recording method which uses an objective lens having a numerical aperture equal to or more than 1.
REFERENCES:
patent: 4202928 (1980-05-01), Staebler
patent: 5878022 (1999-03-01), Okada et al.
patent: 6061322 (2000-05-01), Jain et al.
patent: 6683846 (2004-01-01), Kishima et al.
patent: 6839306 (2005-01-01), Hajjar
patent: 6845066 (2005-01-01), Shingo
patent: 7106524 (2006-09-01), Song
patent: 2002/0054974 (2002-05-01), Takahashi et al.
patent: 2003/0118936 (2003-06-01), Okubo
patent: WO 98/49675 (1998-11-01), None
patent: WO 99/23646 (1999-05-01), None
Hendren, W. R. Optical and magneto-optical characterization of TbFeCo and GdFeCo thin films for high density recording, Feb. 24, 2003, IOP Publishing Ltd, 15, 1461-1468.
Milster, Tom D., “Chromatic Correction of High-Performance Solid Immersion Lens Systems”, Jpn. J. Appl. Phys., vol. 38, pp. 1777-1779, Mar. 1999.
Saito Kimihiro
Shinoda Masataka
Depke Robert J.
Feild Joseph
Goma Tawfik
Rockey Depke & Lyons, LLC
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