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    • 4. 发明授权
    • Glass composition and glass substrate
    • 玻璃组合物和玻璃基材
    • US07396788B2
    • 2008-07-08
    • US10460908
    • 2003-06-13
    • Hideki KawaiToshiharu Mori
    • Hideki KawaiToshiharu Mori
    • C03C3/091C03C3/093
    • G11B5/7315C03C3/083
    • A glass substrate for use as the substrate of an information recording medium such as a magnetic disk, magneto-optical disk, DVD, or MD or of an optical communication device, and a glass composition for making such a glass substrate, contains the following glass ingredients: 45 to 75% by weight of SiO2; 1 to 20% by weight of Al2O3; 0 to 15% by weight, zero inclusive, of B2O3; SiO2+Al2O3+B2O3 accounting for 65 to 90% by weight; a total of 7 to 20% by weight of R2O compounds, where R=Li, Na, and K; and a total of 0 to 12% by weight, zero inclusive, of R′O compounds, where R′=Mg, Ca, Sr, Ba, and Zn. Moreover, the following conditions are fulfilled: B2O3=0% by weight, or Al2O3/B2O3≧1.0; and (SiO2+Al2O3+B2O3)/(the total of R2O compounds+the total of R2O compounds)≧3.
    • 用作诸如磁盘,磁光盘,DVD或MD或光通信装置的信息记录介质的基板的玻璃基板和用于制造这种玻璃基板的玻璃组合物包含以下玻璃 成分:45〜75重量%的SiO 2; 1至20重量%的Al 2 O 3 3; 0至15重量%,包括0的B 2 O 3 3; SiO 2 + 2→2→3→3→3→3→3 占65 至90重量% 总共7至20重量%的R 2 O 2化合物,其中R = Li,Na和K; 和0〜12重量%,包括0的R'O化合物,其中R'= Mg,Ca,Sr,Ba和Zn。 此外,满足以下条件:B 2 O 3 3 = 0重量%,或Al 2 O 3 3 / B 3 = 1.0; 和(SiO 2/2 + Al 2 O 3 + B 2 O 3 3) /(R 2 O 2化合物的总和+ R 2 O O化合物的总和)= 3。
    • 5. 发明授权
    • Glass composition and glass substrate
    • 玻璃组合物和玻璃基材
    • US07192898B2
    • 2007-03-20
    • US10633893
    • 2003-08-04
    • Toshiharu MoriHideki Kawai
    • Toshiharu MoriHideki Kawai
    • C03C3/091C03C3/093G11B7/253
    • C03C3/083C03C3/091
    • A glass substrate for use as the substrate of an information recording medium such as a magnetic disk, magneto-optical disk, DVD, or MD or of an optical communication device, and a glass composition for making such a glass substrate, contains the following glass ingredients: 45 to 75% by weight of SiO2; 1 to 20% by weight of Al2O3; 0 to 8% by weight, zero inclusive, of B2O3; SiO2+Al2O3+B2O3 accounting for 60 to 90% by weight; a total of 0 to 20% by weight, zero inclusive, of R2O compounds, where R=Li, Na, and K; and a total of 0 to 15% by weight, zero inclusive, of TiO2+ZrO2+LnxOy, where LnxOy represents at least one compound selected from the group consisting of lanthanoid metal oxides, Y2O3, Nb2O5, and Ta2O5.
    • 用作诸如磁盘,磁光盘,DVD或MD或光通信装置的信息记录介质的基板的玻璃基板和用于制造这种玻璃基板的玻璃组合物包含以下玻璃 成分:45〜75重量%的SiO 2; 1至20重量%的Al 2 O 3 3; 0至8重量%,包括0的B 2 O 3 O 3; SiO 2 + 2 2 O 3 + B 2 O 3 3 占60 至90重量% 总共0至20重量%,包括0的R 2 O 2化合物,其中R = Li,Na和K; 并且总共0至15重量%,包括0的TiO 2 + ZrO 2 + Ln x O O y, 其中Ln x O O y表示至少一种选自镧系元素金属氧化物,Y 2 O 2 O 3的化合物 > 3,Nb 2 O 5,和Ta 2 O 5。
    • 6. 发明申请
    • Optical glass and optical element
    • 光学玻璃和光学元件
    • US20070004581A1
    • 2007-01-04
    • US11473623
    • 2006-06-23
    • Toshiharu Mori
    • Toshiharu Mori
    • C03C3/068
    • C03C3/068
    • The optical glass of the invention comprising: SiO2: 10 to 30%, B2O3: 15 to 35%, Li2O: 0 (inclusive) to 10%, Na2O: 0 (inclusive) to 5%, and K2O: 0 (inclusive) to 5% provided that Li2O+Na2O+K2O: 0 to 15%; MgO: 0 (inclusive) to 25%, CaO: 0 (inclusive) to 25%, BaO: 0 (inclusive) to 25%, SrO: 0 (inclusive) to 25%, and ZnO: 18 to 55% provided that MgO+CaO+BaO+SrO+ZnO: 18 to 55%; and La2O3: 5 to 20%. This optical glass does not substantially contain poisonous materials such as lead and arsenic. This optical glass has given optical constants, has a low Tg, a low TL and a good devitrification resistance, and is suitable for press molding.
    • 本发明的光学玻璃包括:SiO 2:10〜30%,B 2 O 3:15〜35%,Li 2 O(0)以上0〜10%,Na 2 O:0(含)〜5%,K 2 O:0(含0〜 )至5%,条件是Li 2 O + Na 2 O + K 2 O:0至15%; MgO:0(含)至25%,CaO:0(含)至25%,BaO:0(含)至25%,SrO:0(含)至25%,ZnO:18至55% + CaO + BaO + SrO + ZnO:18〜55% 和La 2 O 3:5〜20%。 该光学玻璃基本上不含铅,砷等有毒物质。 该光学玻璃具有光学常数,具有低Tg,低TL和良好的耐失透性,并且适用于压制成型。