Optical recording medium

Details Optical recording medium Optical recording medium

Filed on

2005-11-22

Date issued

2005-11-22

Examiner

Mulvaney, Elizabeth (Department: 1774)

Patent Class

Stock material or miscellaneous articles

SubClass

Circular sheet or circular blank

Other Related Categories

C428S064400, C428S064800, C430S270140

Type

Reexamination Certificate

Status

active

Patent number

06967048

Description

ABSTRACT:
An optical recording medium includes a substrate having successively disposed thereon a light-reflecting layer, a recording layer and a cover layer, with recording and playback being effected by irradiating the medium with a laser beam having a wavelength of 450 nm or less from the side disposed with the cover layer, wherein a sputter layer having a thickness of 1 to 80 nm is formed between the recording layer and the cover layer, and the sputter layer and the cover layer are adhered with an adhesive. The sputter layer preferably has a thickness within a range from 2 to 50 nm and is preferably formed from a simple substance of Si, Zn, Ag, Al, Ti, Sn or Ge, a compound comprising at least one of the simple substances, or a combination thereof.

REFERENCES:
patent: 4412231 (1983-10-01), Namba et al.
patent: 4465767 (1984-08-01), Oba et al.
patent: 5075145 (1991-12-01), Yamamoto et al.
patent: 5968708 (1999-10-01), Yashiro et al.
patent: 6023451 (2000-02-01), Kashiwagi et al.
patent: 6228455 (2001-05-01), Huang et al.
patent: 6246656 (2001-06-01), Kawakubo et al.
patent: 6506469 (2003-01-01), Takahashi et al.
patent: 6576320 (2003-06-01), Hayashida
patent: 6627288 (2003-09-01), Ogiso et al.
patent: 6699591 (2004-03-01), Ishida et al.
patent: 6808782 (2004-10-01), Usami et al.
patent: 2002/0145967 (2002-10-01), Fujii et al.
patent: 2003/0017295 (2003-01-01), Ishida et al.
patent: 2003/0031954 (2003-02-01), Kakuta
patent: 2003/0081537 (2003-05-01), Shinotsuka
patent: 2003/0090990 (2003-05-01), Ozawa et al.
patent: 2003/0118938 (2003-06-01), Ishida
patent: 0 837 459 (1998-04-01), None
patent: 1 154 413 (2001-11-01), None
patent: 7-266703 (1995-10-01), None
patent: 11-31337 (1999-02-01), None
patent: 11-120617 (1999-04-01), None
patent: 2000-285520 (2000-10-01), None
patent: 2000-311392 (2000-11-01), None
patent: 2001-155383 (2001-06-01), None
Kees Schep,et al., ISOM 2000, International Symposium On Optical Memory 2000, c/o Business Center for Academic Societies Japan, Technical Digest.
Japanese Patent Application Laid-Open (JP-A) No. 08-045125, Feb. 1996.
Japanese Patent Application Laid-Open (JP-A) No. 04-064936, Feb. 1992.
U.S. Patent Application Publication No. 2002-0076648, Jun. 20, 2002 Berneth et al.
Japanese Patent Application Laid-Open (JP-A) No. 02-196689, Aug. 1990.
Japanese Patent Application Laid-Open (JP-A) No. 06-044608, Feb. 1994.
Japanese Patent Application Laid-Open (JP-A) No. 11-138993, May 1999.

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