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Machine translation
1. (WO2005009916) NEGATIVE THERMAL EXPANSION GLASS CERAMIC
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2005/009916    International Application No.:    PCT/JP2004/011003
Publication Date: 03.02.2005 International Filing Date: 26.07.2004
IPC:
C03C 10/12 (2006.01)
Applicants: KABUSHIKI KAISHA OHARA [JP/JP]; 15-30, Oyama 1-chome, Sagamihara-shi, Kanagawa, 2291186 (JP) (For All Designated States Except US).
KISHI, Takayuki [JP/JP]; (JP) (For US Only)
Inventors: KISHI, Takayuki; (JP)
Agent: ARAFUNE, Hiroshi; c/o KOYO INTERNATIONAL PATENT AND LAW FIRM 5F. Nikko Kagurazaka Bldg., 18, Iwatocho, Shinjuku-ku, Tokyo, 1620832 (JP)
Priority Data:
2003-281122 28.07.2003 JP
Title (EN) NEGATIVE THERMAL EXPANSION GLASS CERAMIC
(FR) VITROCERAMIQUE A DILATATION THERMIQUE NEGATIVE
Abstract: front page image
(EN)A glass ceramic having an average line coefficient of more than -25x10-7 to -15x10-7 K-1 in a temperature range of -40°C to 80°C and a spectral transmittance of 85% or more in a wavelength range of 1000 to 1700nm, wherein a predominant crystal phase is one or more crystals selected from &bgr;-eucryptite (&bgr;-Li2O-Al2O3-2SiO2), &bgr;-eucryptite solid solution (&bgr;-Li2O-Al2O3-2SiO2 solid solution), &bgr;-quartz (&bgr;-SiO2), &bgr;-quartz solid solution (&bgr;-SiO2 solid solution).
(FR)L'invention concerne une vitrocéramique qui possède un coefficient linéaire moyen supérieur à -25x10-7 à -15x10-7 K-1 dans une plage thermique comprise entre -40°C et 80°C, et une transmission spectrale de 85 % minimum dans une gamme de longueur d'ondes comprise entre 1000 et 1700 nm. Une phase cristalline prédominante est constituée d'un ou de plusieurs cristaux sélectionnés parmi $g(b)-eucryptite ($g(b)-Li2O-Al2O3-2SiO2), solution solide $g(b)-eucryptite (solution solide $g(b)-Li2O-Al2O3-2SiO2), $g(b)-quartz ($g(b)-SiO2), solution solide $g(b)-quartz (solution solide $g(b)-SiO2).
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, 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, NA, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, 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, PL, 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: English (EN)
Filing Language: English (EN)