Optical recording medium, manufacturing method for optical...

Details Optical recording medium, manufacturing method for optical... Optical recording medium, manufacturing method for optical...

2011-05-24

2011-05-24

Negrén, Daniell L (Department: 2627)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

Reexamination Certificate

active

07948860

ABSTRACT:
An optical recording medium includes a main-information area in which a metal reflection film is formed on a substrate where a row of pits is formed as main data, and a sub-information area in which is recorded medium identification information, which is used to identify the optical recording medium individually, by removing the metal reflection film partially and forming a plurality of reflection-film removed areas. Information is reproduced by irradiating the metal reflection film with a beam of light. In the sub-information area, a row of pits or a guide groove is formed on the substrate, and a track pitch of the row of pits or the guide groove is at least 0.24 μm wide and at most 0.45 μm wide.

REFERENCES:
patent: 5012276 (1991-04-01), Endo et al.
patent: 5013594 (1991-05-01), Mizumura et al.
patent: 5016240 (1991-05-01), Strandjord et al.
patent: 5317553 (1994-05-01), Ohga et al.
patent: 5476700 (1995-12-01), Asai et al.
patent: 6175548 (2001-01-01), Kashiwagi
patent: 6524766 (2003-02-01), Ariyoshi et al.
patent: 6808778 (2004-10-01), Arioka et al.
patent: 7142496 (2006-11-01), Miyagawa et al.
patent: 7313062 (2007-12-01), Kobayashi
patent: 2001/0015949 (2001-08-01), Nagase et al.
patent: 2001/0044000 (2001-11-01), Miki
patent: 2002/0015378 (2002-02-01), Komaki et al.
patent: 2002/0018439 (2002-02-01), Kato et al.
patent: 2003/0137924 (2003-07-01), Aratani et al.
patent: 2004/0022987 (2004-02-01), Ashida et al.
patent: 2005/0002307 (2005-01-01), Lee
patent: 2006/0104194 (2006-05-01), Ota et al.
patent: 1 102 263 (2000-11-01), None
patent: 1 152 402 (2001-11-01), None
patent: 1271490 (2003-01-01), None
patent: 96/16401 (1996-05-01), None
patent: 10-188361 (1998-07-01), None
patent: 10-233019 (1998-09-01), None
patent: 10-255269 (1998-09-01), None
patent: 2000-11453 (2000-01-01), None
patent: 2000-011453 (2000-01-01), None
patent: 2000-57632 (2000-02-01), None
patent: 2001-202659 (2001-07-01), None
patent: 2001-216686 (2001-08-01), None
patent: 2001-229542 (2001-08-01), None
patent: 3 271 965 (2002-04-01), None
patent: 2002-313020 (2002-10-01), None
patent: 4 170 132 (2008-10-01), None
patent: 2 107 954 (1998-03-01), None
patent: 02/37483 (2002-05-01), None
patent: 03069609 (2003-08-01), None
Office Action dated Aug. 31, 2010 issued in Japanese Application No. 2008-273431 with English translation.
Supplementary European Search Report issued Dec. 12, 2008 in corresponding EP Application No. 04 72 0984.

Affiliated with

Also associated with

Rating

Optical recording medium, manufacturing method for optical... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical recording medium, manufacturing method for optical..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical recording medium, manufacturing method for optical... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2657702