Dental implant and method of making same
    2.
    发明授权
    Dental implant and method of making same 失效
    牙种植体及其制作方法

    公开(公告)号:US4497629A

    公开(公告)日:1985-02-05

    申请号:US449426

    申请日:1982-12-13

    Abstract: A dental implant and a method of making same are disclosed. The dental implant comprises a biocompatible metal core and a multi-layer bioglass coating applied on the core. The outer layer of the multi-layer coating is formed of a bioglass whose chemical composition is selected from within the range of composition particularly defined by the present invention and which has substantially the same thermal expansion coefficient as the core. The inner layer is formed of a bioglass whose chemical composition is substantially the same as the glass of the outer layer with the exception that the content of TiO.sub.2 is increased within a particularly determined range.

    Abstract translation: 公开了牙科植入物及其制造方法。 牙科植入物包括生物相容的金属芯和应用在芯上的多层生物玻璃涂层。 多层涂层的外层由生物玻璃形成,该生物玻璃的化学组成选自本发明特别限定的组成范围内,并具有与芯基本上相同的热膨胀系数。 内层由生物玻璃形成,其生物玻璃的化学组成基本上与外层玻璃相同,不同之处在于TiO2的含量在特别确定的范围内增加。

    Optical glass
    4.
    发明授权
    Optical glass 失效
    光学玻璃

    公开(公告)号:US4166746A

    公开(公告)日:1979-09-04

    申请号:US916263

    申请日:1978-06-16

    CPC classification number: C03C3/155 Y10S501/901 Y10S501/903

    Abstract: A high refractive, low dispersive optical glass composition based on a B.sub.2 O.sub.3 -La.sub.2 O.sub.3 -Y.sub.2 O.sub.3 -TiO.sub.2 quaternary system which is free of thorium oxide. The glass made of the composition has a refractive index of 1.79 to 1.93 and an Abbe number of 30 to 41.

    Abstract translation: 基于不含氧化钍的B2O3-La2O3-Y2O3-TiO2四元体系的高折射,低色散光学玻璃组合物。 由该组合物制成的玻璃的折射率为1.79〜1.93,阿贝数为30〜41。

    Optical glass
    6.
    发明授权
    Optical glass 失效
    光学玻璃

    公开(公告)号:US4080216A

    公开(公告)日:1978-03-21

    申请号:US701641

    申请日:1976-07-01

    CPC classification number: C03C3/068 Y10S501/903

    Abstract: An optical glass having a refractive index (nd) in the range of 1.71 to 1.74 and Abbe number (v) in the range of from 49 to 54, the glass consisting essentially of, by weight, 1 to 5% SiO.sub.2, 30 to 41% B.sub.2 O.sub.3, 2 to 6% Al.sub.2 O.sub.3, 42 to 50% La.sub.2 O.sub.3, 3 to 7% ZrO.sub.2, and 1 to 12% Ta.sub.2 O.sub.5.

    Abstract translation: 1.一种折射率(nd)在1.71〜1.74范围内且阿贝数(v)在49〜54范围内的光学玻璃,该玻璃主要由重量比为1〜5%的SiO 2,30〜41 %B 2 O 3,2〜6%Al 2 O 3,42〜50%La 2 O 3,3〜7%ZrO 2和1〜12%Ta 2 O 5。

    Glass body having a fluorescent pattern inwardly of a surface thereof
    7.
    发明授权
    Glass body having a fluorescent pattern inwardly of a surface thereof 失效
    其表面内部具有荧光图案的玻璃体

    公开(公告)号:US3944697A

    公开(公告)日:1976-03-16

    申请号:US358467

    申请日:1973-05-09

    Abstract: A glass body having a fluorescent pattern inwardly of a surface thereof is formed by depositing a first material in a predetermined pattern on a surface of glass containing readily ion-exchangeable first ions, the first material containing second ions capable of ion-exchange with the first ions, one of the glass and the first material containing ions for providing a fluorescence center, and by causing the second ions to penetrate into the glass through ion-exchange with the first ions so that the fluorescence-center providing ions may be distributed in a pattern which is in positive or negative relationship with the predetermined pattern.

    Abstract translation: 通过在容易离子交换的第一离子的玻璃的表面上沉积预定图案的第一材料形成具有荧光图案的玻璃体,所述第一材料含有容易离子交换的第一离子的玻璃表面,所述第一材料含有能够与第一离子交换的第二离子 离子,玻璃之一和含有用于提供荧光中心的离子的第一材料,并且通过使第二离子通过与第一离子离子交换而渗透到玻璃中,使得提供荧光的离子可以分布在 与预定图案呈正或负关系的图案。

    Optical glass
    8.
    发明授权
    Optical glass 失效
    光学玻璃

    公开(公告)号:US4268312A

    公开(公告)日:1981-05-19

    申请号:US82883

    申请日:1979-10-09

    CPC classification number: C03C3/068 C03C3/155

    Abstract: An optical glass composition having high refractive index and low dispersion is disclosed which is characterized in that it contains no harmful thorium compound and instead contains WO.sub.3 in a content of 10 to 35 percent by weight introduced into the system of B.sub.2 O.sub.3 -La.sub.2 O.sub.3 -ZrO.sub.2 -Ta.sub.2 O.sub.5. The optical glass herein disclosed has a high refractive index (nd) ranging from 1.85 to 1.97 and a low Abbe's number (.nu.d) ranging from 28 to 38. Also, the optical glass is stable against devitrification and excellent in chemical durability.

    Abstract translation: 公开了一种具有高折射率和低分散性的光学玻璃组合物,其特征在于它不含有害的钍化合物,而是包含引入B2O3-La2O3-ZrO2-Ta2O5体系中10至35重量%含量的WO 3 。 本文公开的光学玻璃的折射率(nd)为1.85〜1.97,阿贝数(nu d)为28〜38的低折射率。此外,光学玻璃的抗失透性和化学耐久性优异。

    Glasses for eyeglass lenses
    9.
    发明授权
    Glasses for eyeglass lenses 失效
    眼镜镜片

    公开(公告)号:US4252567A

    公开(公告)日:1981-02-24

    申请号:US73380

    申请日:1979-09-07

    CPC classification number: C03C3/064 Y10S501/903

    Abstract: A glass for eyeglass lenses has a refractive index between 1.68 and 1.71, Abbe number between 41.6 and 46.5 and specific gravity between 2.88 and 3.14 and consists essentially of B.sub.2 O.sub.3, CaO and at least one of TiO.sub.2 and Nb.sub.2 O.sub.5, the CaO being included in substantial amount.

    Abstract translation: 用于眼镜镜片的玻璃的折射率在1.68和1.71之间,阿贝数在41.6和46.5之间,比重在2.88和3.14之间,并且基本上由B2O3,CaO和至少一种TiO2和Nb2O5组成,CaO被大量地包括在内 。

    Dental implant
    10.
    发明授权
    Dental implant 失效
    牙种植体

    公开(公告)号:US4411624A

    公开(公告)日:1983-10-25

    申请号:US309513

    申请日:1981-10-07

    CPC classification number: A61C8/0018 A61C8/0012 A61C8/0013

    Abstract: A dental implant is disclosed which comprises a dental root part to be embedded in a jaw bone alone or in combination with a dental crown part or a dental crown support part. At least a major portion of the surface of the dental root part to be in contact with the jaw bone is formed of a biologically active material. The contour of the surface of the dental root part is rotationally symmetrical with its diameter being constant or decreased monotonously from its one end, that is, the collum dentis portion to the other end, that is, the root end portion. The root end portion is smoothly closed.

    Abstract translation: 公开了一种牙科植入物,其包括单独嵌入颚骨或与牙冠部或牙冠支撑部组合的牙根部。 牙根部的与颚骨接触的表面的至少大部分由生物活性物质形成。 牙根部的表面的轮廓是旋转对称的,其直径是恒定的或从其一端单一地减少,即,将小齿龈部分到另一端,即根部端部。 根部端部平滑地封闭。

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