Disc-shaped high-density recording mediums

Details Disc-shaped high-density recording mediums Disc-shaped high-density recording mediums

2011-08-09

2011-08-09

Mulvaney, Elizabeth (Department: 1785)

Stock material or miscellaneous articles

Circular sheet or circular blank

C428S064400, C430S270100

Reexamination Certificate

active

07993721

ABSTRACT:
Optical recording mediums comprising a substrate and a recording layer and a light transmitting layer sequentially disposed on the substrate; wherein the substrate comprises one or more parts selected from the group consisting of injection molded parts, injection molded sandwich structures having a molded surface layer and a molded core layer or two injection molded parts which are UV-bonded, and combinations thereof; and wherein the substrate has a Young's modulus E of at least 2.15 GPa and a Q factor of lower than 160 measured at 25° C. at 2000 Hz in accordance to ASTM E 756-05.

REFERENCES:
patent: 3782961 (1974-01-01), Takahashi et al.
patent: 4225695 (1980-09-01), Schuster et al.
patent: 6201783 (2001-03-01), Arakawa et al.
patent: 6391418 (2002-05-01), Ueda et al.
patent: 6764734 (2004-07-01), Vierk et al.
patent: 6875489 (2005-04-01), Koya et al.
patent: 6908655 (2005-06-01), Arakawa et al.
patent: 7407698 (2008-08-01), Murata et al.
patent: 2002/0155247 (2002-10-01), Arakawa et al.
patent: 2003/0026936 (2003-02-01), Kido et al.
patent: 2004/0151868 (2004-08-01), Kim et al.
patent: 2004/0265605 (2004-12-01), Hermann et al.
patent: 1644798 (1970-09-01), None
patent: 2115373 (1971-10-01), None
patent: 2737406 (1979-02-01), None
patent: 0317262 (1989-05-01), None
patent: 0532337 (1993-03-01), None
patent: 1158024 (2001-11-01), None
patent: 1518880 (2005-03-01), None
patent: 1159551 (1969-07-01), None
patent: 60-026024 (1985-02-01), None
patent: 61-292601 (1986-12-01), None
patent: 62-019801 (1987-01-01), None
patent: 62-019802 (1987-01-01), None
patent: 7-114030 (1995-05-01), None
patent: WO-00/48172 (2000-08-01), None
patent: WO-01/48031 (2001-07-01), None
patent: WO-03/005354 (2003-01-01), None
S. Subramanian, et al., “Experimental and analytical characterization of the mechanical performance of disks,” Proceedings of SPIE, (2000), pp. 323-328, vol. 4090, XP-002468839.
Zijp, F., et al., “Near field read-out of a 50GB first-surface disk with NA=1.9 and a proposal for a cover-layer incident, dual-layer near field system,” Proc. of SPIE, 2004, vol. 5380, pp. 209-223.
Mansfield, S.M., et al., “High-numerical-aperture lens system for optical storage,” Optics Letters, 1993, vol. 18, No. 4, pp. 305-307.
Tominaga, J., et al., “An approach for recording and readout beyond the diffraction limit with Sb thin film,” Applied Physics Letters, 1998, vol. 73, No. 15, pp. 2078-2080.
Saito, K., et al., “Readout method for ROM signal and air gap control signal in a near field system,” Technical Digest ISOM, 2001, pp. 244-245.
Ishimoto, T., et al., “Gap servo system for a biaxial device using an optical gap signal in a near field readout system,” Technical Digest ISOM/ODS, 2002, pp. 287-289.
Lee, J.I., et al., “High data transfer rate cover-incident near-field recording system with a solid immersion lens,” Technical Digest ODS, 2006, pp. 43-45.
Brückl, H., “Die überwindung der beugungsbegrenzung,” Physik in unserer Zeit, 1997, vol. 28, No. 2, pp. 67-73.

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