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1. (WO2004003902) OPTICAL RECORDING MEDIUM, PRODUCTION METHOD AND PRODUCTION DEVICE FOR OPTICAL RECORDING MEDIUM
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/003902    International Application No.:    PCT/JP2003/007236
Publication Date: 08.01.2004 International Filing Date: 06.06.2003
IPC:
G11B 7/26 (2006.01)
Applicants: TDK CORPORATION [JP/JP]; 1-13-1, Nihonbashi, Chuo-ku, Tokyo 103-8272 (JP) (For All Designated States Except US).
USHIDA, Tomoki [JP/JP]; (JP) (For US Only).
USAMI, Mamoru [JP/JP]; (JP) (For US Only).
KOMAKI, Tsuyoshi [JP/JP]; (JP) (For US Only)
Inventors: USHIDA, Tomoki; (JP).
USAMI, Mamoru; (JP).
KOMAKI, Tsuyoshi; (JP)
Agent: MATSUYAMA, Keisuke; Minami-Shinjuku Bldg., 10-12, Yoyogi 2-chome, Shibuya-ku, Tokyo 151-0053 (JP)
Priority Data:
2002-192331 01.07.2002 JP
Title (EN) OPTICAL RECORDING MEDIUM, PRODUCTION METHOD AND PRODUCTION DEVICE FOR OPTICAL RECORDING MEDIUM
(FR) SUPPORT D'ENREGISTREMENT OPTIQUE, PROCEDE ET DISPOSITIF DE FABRICATION
(JA) 光記録媒体、光記録媒体の製造方法及び製造装置
Abstract: front page image
(EN)An optical recording medium comprising a high-precision resin layer having a light transmitting feature and being not likely to cause damages or delamination, and a production method and a production device for the optical recording medium. An optical recording medium (10) comprising a circular support substrate (12) having an information recording surface (12A) on one surface thereof, and a light-transmitting resin layer (14) formed on the information recording surface (12A) of the support substrate (12), wherein an annular protrusion (16) projecting in a thickness direction to surround the center axis (12B) of the support substrate (12) is formed on the resin layer (14), and the resin layer (14) extends radially up to the inner side of the annular protrusion (16).
(FR)Cette invention concerne un support d'enregistrement optique comprenant une couche de résine de haute précision capable de transmettre la lumière et ne risquant pas de s'endommager ou de se décoller, ainsi qu'un dispositif et un procédé de fabrication dudit support. Support d'enregistrement optique (10) comprenant un substrat-support circulaire (12) dont l'une des faces (121A) sert de surface d'enregistrement de l'information, et une couche de résine transmettant la lumière (14) formée sur la surface d'enregistrement de l'information (12A). Un bourrelet annulaire (16) dépassant dans le sens de l'épaisseur autour de l'axe central (12B) du substrat-support (12) est formé sur la couche de résine (14), laquelle couche (14) s'étend radialement jusqu'au bord intérieur du bourrelet annulaire (16).
(JA) 傷、剥離が生じにくい光透過性を有する樹脂層が高精度で形成された光記録媒体、該光記録媒体の製造方法及び製造装置を提供する。 光記録媒体10は、円板形状で片面が情報記録面12Aとされた支持基体12と、支持基体12の情報記録面12Aに形成された光透過性を有する樹脂層14と、を含んでなり、支持基体12の中心軸線12Bを囲んで厚さ方向に突出する環状凸部16が樹脂層14に形成され、且つ、環状凸部16よりも径方向内側まで樹脂層14が延在されている。
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NI, NO, NZ, OM, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)