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1. WO2003005353 - SUPPORT D'ENREGISTREMENT OPTIQUE, DISQUE ORIGINAL POUR SUPPORT D'ENRETISTREMENT OPTIQUE, ET PROCEDE DE FABRICATION DU DISQUE ORIGINAL

Numéro de publication WO/2003/005353
Date de publication 16.01.2003
N° de la demande internationale PCT/JP2002/006445
Date du dépôt international 26.06.2002
CIB
G11B 7/007 2006.01
GPHYSIQUE
11ENREGISTREMENT DE L'INFORMATION
BENREGISTREMENT DE L'INFORMATION BASÉ SUR UN MOUVEMENT RELATIF ENTRE LE SUPPORT D'ENREGISTREMENT ET LE TRANSDUCTEUR
7Enregistrement ou reproduction par des moyens optiques, p.ex. enregistrement utilisant un faisceau thermique de rayonnement optique, reproduction utilisant un faisceau optique à puissance réduite; Supports d'enregistrement correspondants
007Disposition de l'information sur le support d'enregistrement, p.ex. forme des pistes
G11B 7/26 2006.01
GPHYSIQUE
11ENREGISTREMENT DE L'INFORMATION
BENREGISTREMENT DE L'INFORMATION BASÉ SUR UN MOUVEMENT RELATIF ENTRE LE SUPPORT D'ENREGISTREMENT ET LE TRANSDUCTEUR
7Enregistrement ou reproduction par des moyens optiques, p.ex. enregistrement utilisant un faisceau thermique de rayonnement optique, reproduction utilisant un faisceau optique à puissance réduite; Supports d'enregistrement correspondants
24Supports d’enregistrement caractérisés par la forme, la structure ou les propriétés physiques, ou par le choix du matériau
26Appareils ou procédés spécialement établis pour la fabrication des supports d'enregistrement
CPC
G11B 11/10582
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
10using recording by magnetic means ; or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
105using a beam of light or a magnetic field for recording ; by change of magnetisation; and a beam of light for reproducing, ; i.e. magneto-optical,; e.g. light-induced thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10582Record carriers characterised by the selection of the material or by the structure or form
G11B 11/10584
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
10using recording by magnetic means ; or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
105using a beam of light or a magnetic field for recording ; by change of magnetisation; and a beam of light for reproducing, ; i.e. magneto-optical,; e.g. light-induced thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10582Record carriers characterised by the selection of the material or by the structure or form
10584characterised by the form, e.g. comprising mechanical protection elements
G11B 11/10586
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
11Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
10using recording by magnetic means ; or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
105using a beam of light or a magnetic field for recording ; by change of magnetisation; and a beam of light for reproducing, ; i.e. magneto-optical,; e.g. light-induced thermo-magnetic recording, ; spin magnetisation recording,; Kerr ; or Faraday; effect reproducing
10582Record carriers characterised by the selection of the material or by the structure or form
10586characterised by the selection of the material
G11B 7/007
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor;
007Arrangement of the information on the record carrier, e.g. form of tracks ; , actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
G11B 7/00718
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor;
007Arrangement of the information on the record carrier, e.g. form of tracks ; , actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
00718Groove and land recording, i.e. user data recorded both in the grooves and on the lands
G11B 7/24076
GPHYSICS
11INFORMATION STORAGE
BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
7Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation ; by modifying optical properties or the physical structure; , reproducing using an optical beam at lower power ; by sensing optical properties; Record carriers therefor;
24Record carriers characterised by shape, structure or physical properties, or by the selection of the material
2407Tracks or pits; Shape, structure or physical properties thereof
24073Tracks
24076Cross sectional shape in the radial direction of a disc, e.g. asymmetrical cross sectional shape
Déposants
  • SONY CORPORATION [JP/JP]; 7-35, Kitashinagawa 6-chome Shinagawa-ku, Tokyo 141-0001, JP (AT, BE, CH, CN, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, KR, LU, MC, NL, PT, SE, TR)
  • TAKEMOTO, Hiroyuki [JP/JP]; JP (UsOnly)
  • ARIMA, Mitsuo [JP/JP]; JP (UsOnly)
  • SUZUKI, Tadao [JP/JP]; JP (UsOnly)
  • FUKUSHIMA, Yoshihito [JP/JP]; JP (UsOnly)
  • NAKAYAMA, Hiroshi [JP/JP]; JP (UsOnly)
  • TAKEUCHI, Atsushi [JP/JP]; JP (UsOnly)
Inventeurs
  • TAKEMOTO, Hiroyuki; JP
  • ARIMA, Mitsuo; JP
  • SUZUKI, Tadao; JP
  • FUKUSHIMA, Yoshihito; JP
  • NAKAYAMA, Hiroshi; JP
  • TAKEUCHI, Atsushi; JP
Mandataires
  • NAKAMURA, Tomoyuki; c/o Miyoshi International Patent Office 9th Floor, Toranomon Daiichi Building, 2-3, Toranomon 1-chome Minato-ku, Tokyo 105-0001, JP
Données relatives à la priorité
2001-20049802.07.2001JP
Langue de publication japonais (JA)
Langue de dépôt japonais (JA)
États désignés
Titre
(EN) OPTICAL INFORMATION RECORDING MEDIUM, ORIGINAL DISK FOR OPTICAL INFORMATION RECORDING MEDIUM, AND METHOD OF MANUFACTURING THE ORIGINAL DISK
(FR) SUPPORT D'ENREGISTREMENT OPTIQUE, DISQUE ORIGINAL POUR SUPPORT D'ENRETISTREMENT OPTIQUE, ET PROCEDE DE FABRICATION DU DISQUE ORIGINAL
Abrégé
(EN)
An optical information recording medium having a land face and a groove face both used as recording tracks and capable of providing high quality of signals, comprising both the land and groove faces formed as the recording tracks on the substrate, wherein laser beam is radiated from the rear side of the substrate for recording and reproducing, the inclination angle of the groove face comes within the range of 25°to 40°, and the arithmetic averaged roughnesses (Ra) of both the land face and the groove face are 0.2 to 0.7 nm, respectively.
(FR)
La présente invention concerne un support d'enregistrement optique comportant une face d'appui et une face réinurée utilisées toutes les deux comme pistes d'enregistrement et capable de fournir une haute qualité des signaux, comprenant les deux faces, d'appui et rainurées, formées comme les pistes d'enregistrement sur le substrat, auquel cas le faisceau laser est rayonné depuis le côté postérieur du substrat pour enregistrer et reproduire, l'angle d'inclinaison de la face rainurée se situe dans la plage de 25° à 40°, et la rugosité ramenée à une moyenne arithmétique (Ra) des deux faces, d'appui et rainurées, est de 0,2 à 0,7 nm, respectivement.
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