公开(公告)号：US08222170B2

公开(公告)日：2012-07-17

申请号：US12656512

申请日：2010-02-01

申请人： Mikio Ikenishi ,  Atsuko Morita ,  Xuelu Zou

发明人： Mikio Ikenishi ,  Atsuko Morita ,  Xuelu Zou

IPC分类号： C03C3/085 ,  C03C3/091 ,  G11B7/241

CPC分类号： G11B5/7315 ,  B24B37/042 ,  C03C3/064 ,  C03C3/083 ,  C03C3/085 ,  C03C3/089 ,  C03C3/091 ,  C03C3/093 ,  C03C19/00 ,  C03C21/00

摘要： Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 μm−1/2 or less or having a fragility index value, measured in an atmosphere having a dew point of −5° C. or lower, of 7 μm−1/2 or less, or the glass substrate comprising, by mol %, 40 to 75% of SiO2, 2 to 45% of B2O3 and/or Al2O3 and 0 to 40% of R′2O in which R′ is at least one member selected from the group consisting of Li, Na and K), wherein the total content of SiO2, B2O3, Al2O3 and R′2O is at least 90 mol %, and a magnetic information recording medium comprising a magnetic recording layer formed on the glass substrate.

摘要翻译： 公开了一种用于信息记录介质的玻璃基板，具有优异的耐擦伤性和重量轻并且具有高断裂韧性，玻璃基板在水中测得的脆性指数值为12μm-1/2或更小，或具有 在露点为-5℃以下的气氛中测定的7μm-1/2以下的脆性指数值，或摩尔％为40〜75％的SiO 2的玻璃基板，2〜 45％的B 2 O 3和/或Al 2 O 3和0〜40％的R'2O，其中R'为选自Li，Na和K中的至少一种），其中SiO 2，B 2 O 3，Al 2 O 3和 R'2O为90摩尔％以上，磁性信息记录媒体包含形成在玻璃基板上的磁记录层。

公开(公告)号：US20110289970A1

公开(公告)日：2011-12-01

申请号：US13171082

申请日：2011-06-28

申请人： Xuelu Zou ,  Yoshiko Kasuga ,  Yasuhiro Fujiwara

发明人： Xuelu Zou ,  Yoshiko Kasuga ,  Yasuhiro Fujiwara

IPC分类号： G02B1/00 ,  C03C3/062 ,  C03C3/064 ,  C03B23/00 ,  C03C3/19 ,  C03C3/16 ,  C03B7/00 ,  C03C3/21 ,  C03C3/066

CPC分类号： C03C3/21 ,  C03C3/062 ,  C03C3/16

摘要： Preforms for precision press molding made of optical glass, optical elements, and methods of manufacturing the same are provided. The preforms are suited to precision press molding having a broad range of dispersion characteristics, a low glass transition temperature, a low sag point, and good resistance to devitrification while containing no PbO. The optical element is obtained by precision press molding the preform. One example of the preform has a refractive index (nd) of greater than or equal to 1.7 and an Abbé number (νd) of less than or equal to 32. The other example of the preform has an Abbé number (νd) exceeding 32.

摘要翻译： 提供了由光学玻璃，光学元件及其制造方法制成的精密压制成型的预制件。 预成型件适合于具有宽范围的分散特性，低玻璃化转变温度，低凹陷点以及良好的耐失透性同时不含PbO的精密压模成型。 光学元件通过精密压模成型而获得。 预型件的一个示例具有大于或等于1.7的折射率（nd）和小于或等于32的Abbé数（＆ngr; d）。预成型件的另一个实例具有Abbé数（＆ngr; d ）超过32。

公开(公告)号：US07992412B2

公开(公告)日：2011-08-09

申请号：US10873620

申请日：2004-06-23

申请人： Masahiro Yoshida ,  Yoshikane Shinkuma ,  Xuelu Zou

发明人： Masahiro Yoshida ,  Yoshikane Shinkuma ,  Xuelu Zou

IPC分类号： C03B7/10

CPC分类号： C03B40/04 ,  C03B7/12 ,  C03B19/1055 ,  Y02P40/57

摘要： Disclosed are a process for producing a glass shaped material having high quality and high mass accuracy and a process for producing an optical element, which includes the preparation of a glass shaped material having high quality and high mass accuracy, the heating of said glass shaped material and the precision-press-molding thereof.The present invention provides a process for producing a glass shaped material including the separation of a predetermined amount of a molten glass gob from the forward end of a molten glass flow flowing down from a flow pipe, by a specific means and the shaping thereof into the glass shaped material, a process for producing a glass shaped material including the dropping of a molten glass drop from a flow pipe, the receipt thereof with a shaping mold that ejects a gas, by a specific means, and the shaping thereof into the glass shaped material while it is caused to float, and a process for producing an optical element including the precision press-molding of a preform obtained by one of these processes.

摘要翻译： 公开了一种具有高质量和高质量精度的玻璃成形材料的制造方法以及制造光学元件的方法，该方法包括制备具有高质量和高质量精度的玻璃形状材料，所述玻璃形状材料的加热 及其精密加压成型。 本发明提供了一种玻璃成形材料的制造方法，其特征在于，具有通过特定的方法将从熔融玻璃流的流出管流下的熔融玻璃流的前端分离规定量的熔融玻璃料滴， 玻璃形状材料，用于制造玻璃形状材料的方法，包括从流动管中滴下熔融玻璃液滴，通过特定方式将其形成为喷射气体的成型模具，并将其成形为玻璃形状 材料漂浮时的制造方法，以及包括通过这些工序之一获得的预成型体的精密加压成形的光学元件的制造方法。

公开(公告)号：US07972662B2

公开(公告)日：2011-07-05

申请号：US11711669

申请日：2007-02-28

申请人： Mikio Ikenishi ,  Xuelu Zou ,  Kenji Yamanaka ,  Junichi Horikawa

发明人： Mikio Ikenishi ,  Xuelu Zou ,  Kenji Yamanaka ,  Junichi Horikawa

IPC分类号： C23C14/00 ,  C23C14/32 ,  B05D3/00 ,  C08J7/18 ,  G21H5/00 ,  B32B17/06

CPC分类号： C03C3/083 ,  G11B5/7315 ,  G11B5/8404

摘要： An information recording medium is prepared by forming a multi-layered film, including an information recording layer, on a substrate by transferring the substrate heated at an average heating rate of at least 10° C./second in a heating zone, along consecutive film-forming zones, and consecutively forming layers forming the multi-layered film in the film-forming zones.

摘要翻译： 通过在基板上形成包含信息记录层的多层膜，通过在加热区中以平均加热速度至少10℃/秒加热的基板沿着连续的膜转移来制备信息记录介质 并且在成膜区域中连续形成形成多层膜的层。

公开(公告)号：US07964298B2

公开(公告)日：2011-06-21

申请号：US10532863

申请日：2003-10-28

申请人： Mikio Ikenishi ,  Xuelu Zou

发明人： Mikio Ikenishi ,  Xuelu Zou

IPC分类号： G11B5/667 ,  G11B5/706 ,  C03C21/00

CPC分类号： G11B5/7315 ,  C03C3/087 ,  C03C21/002 ,  Y10T428/21

摘要： A glass for use in chemical reinforcement for use in a substrate of an information recording medium, having a composition comprising, denoted as mol %: SiO247 to 70%  Al2O31 to 10% (where the total of SiO2 and Al2O3 is 57 to 80%) CaO2 to 25% BaO1 to 15% Na2O1 to 10% K2O0 to 15% (where the total of Na2O and K2O is 3 to 16%) ZrO21 to 12% MgO0 to 10% SrO0 to 15% (where the ratio of the content of CaO to the total of MgO, CaO, SrO, and BaO is greater than or equal to 0.5) ZnO0 to 10% (where the total of MgO, CaO, SrO, BaO, and ZnO is 3 to 30%) TiO20 to 10% and the total content of the above-stated components is greater than or equal to 95%. A glass for use in chemical reinforcement for use in the substrate of an information recording medium employed in a perpendicular magnetic recording system, in which the glass exhibits the glass transition temperature is greater than or equal to 600° C. A substrate for use in an information recording medium consisting of the above glass and being chemically reinforced. A substrate for an information recording medium consisting of a chemically reinforced glass having a glass transition temperature of greater than or equal to 600° C. and exhibiting a bending strength following heating for two hours at 570° C. of greater than or equal to 15 kgf/mm2. An information recording medium comprising an information recording layer on the above substrate for an information recording medium. The present invention provides glass having both high thermal resistance and high strength, a substrate for use in information recording media comprised of this glass, and an information recording medium employing such a substrate.

摘要翻译： 用于信息记录介质的基板中的化学增强用玻璃，其具有以摩尔％表示的组成：SiO 2 47〜70％Al 2 O 3 1〜10％（SiO 2和Al 2 O 3的总和为57〜80 ％）CaO 2〜25％BaO 1〜15％Na 2 O 1〜10％K2O 0〜15％（Na2O和K2O的总和为3〜16％）ZrO2 1〜12％MgO 0〜10％SrO 0〜15 ％（CaO的含量与MgO，CaO，SrO和BaO的总量的比例大于等于0.5）ZnO 0〜10％（MgO，CaO，SrO，BaO，ZnO的总量 为3〜30％）TiO 2为0〜10％，上述成分的总含量为95％以上。 用于在垂直磁记录系统中使用的信息记录介质的基板中的玻璃，其中所述玻璃呈玻璃化转变温度大于或等于600℃。 信息记录介质，由上述玻璃构成，并被化学强化。 一种用于信息记录介质的基板，由玻璃化转变温度大于或等于600℃的化学强化玻璃组成，并且在570℃下加热2小时后的弯曲强度大于或等于15 kgf / mm2。 一种信息记录介质，包括在上述信息记录介质用基板上的信息记录层。 本发明提供具有高热阻和高强度的玻璃，用于由该玻璃构成的信息记录介质的基板和使用这种基板的信息记录介质。

公开(公告)号：US07930901B2

公开(公告)日：2011-04-26

申请号：US12314399

申请日：2008-12-10

申请人： Yasuhiro Fujiwara ,  Xuelu Zou

发明人： Yasuhiro Fujiwara ,  Xuelu Zou

IPC分类号： C03B11/00 ,  C03C3/21 ,  C03C3/062 ,  C03C3/16

CPC分类号： C03C3/064 ,  C03C3/066

摘要： Provided are optical glasses having a phosphate-containing composition that can materialize highly useful optical properties including high-refractivity and high-dispersion properties; an optical glass comprising P2O5, SiO2 and Li2O as essential components, comprising Na2O and K2O as optional components, having an Li2O/(Li2O+Na2O+K2O) molar ratio of from ⅓ to 1 and having an Abbe's number (νd) of 30 or less, and an optical glass comprising P2O5, SiO2 and Li2O as essential components, having the property of transmittance that when light is caused to vertically enter one of two plane and mutually parallel optically polished surfaces of a sample of the glass having a thickness of 10.0±0.1 mm and caused to exit from the other surface, the wavelength at which the transmittance represented by the ratio of transmitted light intensity to incidence light intensity (transmitted light intensity/incidence light intensity) comes to be 70% is 510 nm or less, having a refractive index (nd) of 1.80 or more and an Abbe's number (νd) of 30 or less and having a liquidus temperature of less than 1,000° C.

摘要翻译： 本发明提供具有能够实现高折射率和高分散性的高有用光学性能的含磷酸盐组合物的光学玻璃; 包含作为必要组分的P 2 O 5，SiO 2和Li 2 O作为必要组分的光学玻璃，其包含Na 2 O和K 2 O作为任选组分，Li 2 O /（Li 2 O + Na 2 O + K 2 O）摩尔比为1/3至1，并具有阿贝数（＆ngr; d） 30以下，作为必要成分的具有P2O5，SiO2和Li2O的光学玻璃，具有透射性的特性，当使光线垂直进入具有厚度的玻璃样品的两个平面和相互平行的光学抛光表面之一时 10.0±0.1mm，从另一面出来，由透射光强度与入射光强度（透射光强度/入射光强度）的比率表示的透射率为70％的波长为510nm， 折射率（nd）为1.80以上，阿贝数（ngrd）为30以下，液相线温度小于1000℃。

公开(公告)号：US20100292066A1

公开(公告)日：2010-11-18

申请号：US12295610

申请日：2007-03-28

申请人： Xuelu Zou ,  Yasuhiro Fujiwara ,  Hiroshi Kohno ,  Kohichiro Shiraishi

发明人： Xuelu Zou ,  Yasuhiro Fujiwara ,  Hiroshi Kohno ,  Kohichiro Shiraishi

IPC分类号： C03C14/00 ,  C03C3/00 ,  C03C3/16 ,  C03C3/21 ,  C03C3/19 ,  C03C3/17 ,  C03C3/062 ,  C03C3/32 ,  C03B23/03

CPC分类号： C03C3/064 ,  C03B40/02 ,  C03B2215/16 ,  C03B2215/24 ,  C03C3/066 ,  C03C3/068 ,  C03C3/089 ,  C03C3/091 ,  C03C3/093 ,  C03C3/095 ,  C03C3/15 ,  C03C3/155 ,  C03C3/17 ,  C03C3/19 ,  C03C3/247

摘要： A glass material for mold pressing, comprised of a core portion comprised of a multicomponent optical glass containing at least one readily reducible component selected from among W, Ti, Bi, and Nb, and a covering portion covering the surface of said core portion, comprised of a multicomponent glass containing none or a lower quantity of said readily reducible component than is contained in said core portion. A glass material for mold pressing comprising a core portion comprised of a fluorine-containing multicomponent optical glass and a covering portion covering the surface of said core portion, comprised of a multicomponent glass containing none or a lower quantity of fluorine than is contained in said core portion. A method for manufacturing an optical glass element comprising heat softening a glass material that has been preformed into a prescribed shape, and conducting press molding with a pressing mold, employing the above glass material of the invention. To provide a stable production of optical elements affording adequate optical performance by using optical glass containing readily reducible components or fluorine and inhibiting undesirable interface reactions during press molding.

摘要翻译： 一种用于模压的玻璃材料，包括由含有至少一种选自W，Ti，Bi和Nb中的易还原成分的多组分光学玻璃构成的核心部分和覆盖所述芯部表面的覆盖部分， 的多组分玻璃，其含有比所述核心部分中所含的所述容易还原成分少或少的量。 一种用于压模的玻璃材料，包括由含氟多组分光学玻璃和覆盖所述芯部表面的覆盖部分构成的芯部，由不含或少量氟的多组分玻璃组成，所述多组分玻璃不包含在所述芯中 一部分。 一种制造光学玻璃元件的方法，包括将已经预成型为预定形状的玻璃材料热软化，并使用本发明的上述玻璃材料，用压制模具进行压制成型。 通过使用含有易于还原的组分或氟的光学玻璃并抑制压制成型期间的不期望的界面反应，提供光学元件的稳定生产，提供足够的光学性能。

公开(公告)号：US07827823B2

公开(公告)日：2010-11-09

申请号：US12457821

申请日：2009-06-23

申请人： Yoshiko Kasuga ,  Xuelu Zou

发明人： Yoshiko Kasuga ,  Xuelu Zou

IPC分类号： C03B11/00 ,  C03C3/066

CPC分类号： C03C3/068 ,  C03B11/08

摘要： An optical glass having high refractivity and a low sag temperature and having a low-temperature softening property that enables precision press-molding is provided, and the optical glass contains, by mol %, 5 to 50% of B2O3, 3 to 50% of SiO2, 5 to 40% of TiO2, 1 to 40% of ZnO, 5 to 20% of La2O3, 0 to 10% of Gd2O3, 0 to 15% of Nb2O5, 0 to 10% of ZrO2, 0 to 5% of Ta2O5, 0 to 10% of Bi2O3, 0 to 10% of MgO, 0 to 8% of CaO, 0 to 10% of SrO, 0 to 10% of BaO, provided that the total content of MgO, CaO, SrO and BaO is 15% or less, 0 to 20% of Li2O, and 0 to 5% of Na2O, optionally containing Sb2O3 as a refining agent, and having a refractive index (nd) of 1.8 or more and an Abbe's number (νd) of 35 or less.

摘要翻译： 提供具有高折射率和低下垂温度并具有能够进行精密加压成型的低温软化性的光学玻璃，光学玻璃含有5〜50％的B 2 O 3，3〜50％的 SiO2，5〜40％的TiO2，1〜40％的ZnO，5〜20％的La2O3，0〜10％的Gd2O3，0〜15％的Nb2O5，0〜10％的ZrO2，0〜5％的Ta2O5 ，0〜10％的Bi2O3，0〜10％的MgO，0〜8％的CaO，0〜10％的SrO，0〜10％的BaO，条件是MgO，CaO，SrO和BaO的总含量为 15％以下，0〜20％的Li 2 O，0〜5％的Na 2 O，任选含有作为澄清剂的Sb 2 O 3，折射率（nd）为1.8以上，阿贝数（ngr） 35以下。

公开(公告)号：US20100081555A1

公开(公告)日：2010-04-01

申请号：US12570436

申请日：2009-09-30

申请人： Tomoaki NEGISHI ,  Xuelu Zou

发明人： Tomoaki NEGISHI ,  Xuelu Zou

IPC分类号： C03C3/068 ,  C03C19/00 ,  C03B11/00

CPC分类号： C03C4/02 ,  C03B17/06 ,  C03B17/061 ,  C03B19/02 ,  C03C3/068 ,  Y02P40/57

摘要： A high-refractivity low-dispersion optical glass that can be stably supplied and has excellent glass stability and that has coloring reduced, comprises, by mass %, 5 to 32% of total of SiO2 and B2O3, 45 to 65% of total of La2O3, Gd2O3 and Y2O3, 0.5 to 10% of ZnO, 1 to 20% of total of TiO2 and Nb2O5, 0 to 15% of ZrO2, 0 to 2% of WO3, 0 to 20% of Yb2O3, 0 to 10% of total of Li2O, Na2O and K2O, 0 to 10% of total of MgO, CaO, SrO and BaO, 0 to 12% of Ta2O5, 0 to 5% of GeO2, 0 to 10% of Bi2O3, and 0 to 10% of Al2O3, wherein the mass ratio of the content of SiO2 to the content of B2O3, (SiO2/B2O3), is from 0.3 to 1.0, and the mass ratio of the total content of Gd2O3 and Y2O3 to the total content of La2O3, Gd2O3 and Y2O3, (Gd2O3+Y2O3)/(La2O3+Gd2O3+Y2O3), is from 0.05 to 0.6, the optical glass having a refractive index nd of 1.89 to 2.0 and an Abbe's number νd of 32 to 38 and having a coloring degree λ70 of 430 nm or less.

摘要翻译： 可以稳定地供给且具有优异的玻璃稳定性并具有着色性降低的高折射率低分散型光学玻璃以质量％计含有SiO 2和B 2 O 3的总量的5〜32％，La 2 O 3的总量的45〜65％ ，Gd 2 O 3和Y 2 O 3，0.5〜10％的ZnO，1〜20％的TiO 2和Nb 2 O 5，0〜15％的ZrO 2，0〜2％的WO 3，0〜20％的Yb 2 O 3，0〜10％ 的Li 2 O，Na 2 O和K 2 O，0〜10％的MgO，CaO，SrO和BaO，0〜12％的Ta 2 O 5，0〜5％的GeO 2，0〜10％的Bi 2 O 3，0〜10％的Al 2 O 3 其中SiO 2的含量与B 2 O 3的含量（SiO 2 / B 2 O 3）的质量比为0.3〜1.0，Gd 2 O 3和Y 2 O 3的总含量与La 2 O 3，Gd 2 O 3和Y 2 O 3的总含量的质量比 ，（Gd 2 O 3 + Y 2 O 3）/（La 2 O 3 + Gd 2 O 3 + Y 2 O 3）为0.05〜0.6，折射率nd为1.89〜2.0，光学玻璃的阿贝数ngr为32〜38，着色度λ70 为430nm以下。

公开(公告)号：US20100011814A1

公开(公告)日：2010-01-21

申请号：US12522062

申请日：2008-01-08

申请人： Xuelu Zou ,  Yoichi Hachitani

发明人： Xuelu Zou ,  Yoichi Hachitani

IPC分类号： C03B11/00

CPC分类号： G11B5/7315 ,  C03B11/088 ,  C03B18/02 ,  C03B32/02 ,  C03B2201/40 ,  C03C4/082 ,  G11B5/8404

摘要： The present invention has for its objects to provide a method for manufacturing a disklike glass material for the mass production of information recording media substrate-use materials of constant sheet thickness, to provide a method for manufacturing an information recording medium-use substrate from the material thus manufactured, and to provide a method for manufacturing an information recording medium. The provided is a method for manufacturing a disklike glass material comprising the successive molding of multiple pieces of disklike glass material from glass melt. Being suppressed variation over time in the concentration of infrared radiation-absorbing ions contained in the glass melt being molded into said pieces of disklike glass material so that the variation in the sheet thickness of said multiple pieces of disklike glass material falls within a range of ±15 percent of a reference value. The reference value being the median between the maximum value and the minimum value of the sheet thickness of 1,000 pieces of said glass material. In the course of molding multiple pieces of disklike glass material comprised of glass containing 0.1 to 100 ppm of infrared radiation-absorbing ions, variation over time in the concentration of the infrared radiation-absorbing ions contained in the glass melt being molded into said pieces of disklike glass material is suppressed to suppress variation in the sheet thickness of said multiple pieces of sheetlike glass material.

摘要翻译： 本发明的目的是提供一种用于制造盘状玻璃材料的方法，用于大量生产具有恒定厚度的板材的信息记录介质基板用材料，从而提供一种从该材料制造信息记录介质用基板的方法 从而制造出信息记录介质的制造方法。 所提供的是制造盘状玻璃材料的方法，包括从玻璃熔体连续成型多片盘状玻璃材料。 随着时间的推移，包含在玻璃熔体中的红外线吸收离子的浓度被抑制在所述盘状玻璃材料片中，使得所述多片盘状玻璃材料的片材厚度的变化落在± 15％的参考值。 参考值是1,000片所述玻璃材料的片材厚度的最大值和最小值之间的中值。 在由含有0.1〜100ppm的红外线吸收离子的玻璃构成的多片盘状玻璃材料的成型过程中，随着时间的推移，包含在玻璃熔体中的红外线吸收离子的浓度随着时间的推移而变成 抑制盘状玻璃材料以抑制所述多片片状玻璃材料的片材厚度的变化。