公开(公告)号：US06503857B2

公开(公告)日：2003-01-07

申请号：US09947960

申请日：2001-09-06

申请人： Kousuke Nakajima ,  Junko Ishioka ,  Katsuhiko Yamaguchi ,  Naoyuki Goto ,  Takayuki Kishi

发明人： Kousuke Nakajima ,  Junko Ishioka ,  Katsuhiko Yamaguchi ,  Naoyuki Goto ,  Takayuki Kishi

IPC分类号： C03C1002

CPC分类号： G11B5/7315 ,  C03C10/0045

摘要： A high rigidity glass-ceramic substrate is provided which contains, as a predominant crystal phase or phases, at least one crystal phase selected from the group consisting of enstatite (MgSiO3), enstatite solid solution (MgSiO3 solid solution), magnesium titanate (MgTi2O5) and magnesium titanate solid solution (MgTi2O5 solid solution), has fine crystal grains (preferably globular crystal grains) of precipitated crystal phases, has excellent melting property of a base glass, high resistivity to devitrification, easiness in polishing, excellent smoothness in the surface after polishing and has high Young's modulus capable of coping with a high speed rotation.

摘要翻译： 提供了一种高刚性玻璃陶瓷基片，其包含作为主要晶相或相的至少一种选自顽辉石（MgSiO 3），顽辉石固溶体（MgSiO 3固溶体），钛酸镁（MgTi 2 O 5） 和钛酸镁固溶体（MgTi 2 O 5固溶体）具有析出的结晶相的微细晶粒（优选球状晶粒），具有优异的基底玻璃熔融性，高失透性，抛光性，表面光滑度优异 抛光，并具有高的杨氏模量，能够应付高速旋转。

公开(公告)号：US06344423B2

公开(公告)日：2002-02-05

申请号：US09201333

申请日：1998-11-30

申请人： Naoyuki Goto ,  Kousuke Nakajima ,  Junko Ishioka

发明人： Naoyuki Goto ,  Kousuke Nakajima ,  Junko Ishioka

IPC分类号： C03C1014

CPC分类号： G11B5/7315 ,  C03C10/0045 ,  C03C10/0054 ,  C03C10/0081 ,  G11B5/8404 ,  Y10S428/90 ,  Y10T428/24355

摘要： A high rigidity glass-ceramic substrate for a magnetic information storage medium has a ratio of Young's modulus to specific gravity within a range from 37 to 63 and comprises Al2O3 within a range from 10% to less than 20%. A predominant crystal phase of the glass-ceramic substrate consists of one or more crystals selected from the group consisting of &bgr;-quartz, &bgr;-quartz solid solution, enstatite, enstatite solid solution, forsterite and forsterite solid solution.

摘要翻译： 用于磁信息存储介质的高刚性玻璃陶瓷基片具有在37至63的范围内的杨氏模量与比重的比率，并且包括在10％至小于20％的范围内的Al 2 O 3。 玻璃陶瓷衬底的主要晶相由一种或多种选自β-石英，β-石英固溶体，顽辉石，顽辉石固溶体，镁橄榄石和镁橄榄石固溶体的晶体组成。

公开(公告)号：US06429160B1

公开(公告)日：2002-08-06

申请号：US09577720

申请日：2000-05-23

申请人： Kousuke Nakajima ,  Junko Ishioka ,  Katsuhiko Yamaguchi ,  Naoyuki Goto ,  Takayuki Kishi

发明人： Kousuke Nakajima ,  Junko Ishioka ,  Katsuhiko Yamaguchi ,  Naoyuki Goto ,  Takayuki Kishi

IPC分类号： C03C1004

CPC分类号： G11B5/7315 ,  C03C10/0045

摘要： A high rigidity glass-ceramic substrate is provided which contains, as a predominant crystal phase or phases, at least one crystal phase selected from the group consisting of enstatite (MgSiO3), enstatite solid solution (MgSiO3 solid solution), magnesium titanate (MgTi2O) and magnesium titanate solid solution (MgTi2O5 solid solution), has fine crystal grains (preferably globular crystal grains) of precipitated crystal phases, has excellent melting property of a base glass, high resistivity to devitrification, easiness in polishing, excellent smoothness in the surface after polishing and has high Young's modulus capable of coping with a high speed rotation.

摘要翻译： 提供了一种高刚性玻璃陶瓷基片，其包含作为主要结晶相或相的至少一种选自顽辉石（MgSiO 3），顽辉石固溶体（MgSiO 3固溶体），钛酸镁（MgTi 2 O） 和钛酸镁固溶体（MgTi 2 O 5固溶体）具有析出的结晶相的微细晶粒（优选球状晶粒），具有优异的基底玻璃熔融性，高失透性，抛光性，表面光滑度优异 抛光，并具有高的杨氏模量，能够应付高速旋转。

公开(公告)号：US06245411B1

公开(公告)日：2001-06-12

申请号：US09203187

申请日：1998-11-30

申请人： Naoyuki Goto ,  Kousuke Nakajima ,  Junko Ishioka

发明人： Naoyuki Goto ,  Kousuke Nakajima ,  Junko Ishioka

IPC分类号： G11B0582

CPC分类号： G11B5/7315 ,  C03C10/0045 ,  C03C10/0054 ,  C03C10/0081 ,  G11B5/8404 ,  Y10S428/90 ,  Y10T428/24355

摘要： A high rigidity glass-ceramic substrate for a magnetic information storage medium has a ratio of Young's modulus to specific gravity within a range from 37 to 63 and comprises Al2O3 within a range from 10% to less than 20%. Predominant crystal phases of the glass-ceramic substrate consist of (1) cordierite or cordierite solid solution and (2) one or more crystals selected from the group consisting of Spinel crystal, Spinel crystal solid solution, enstatite, enstatite solid solution, &bgr;-quartz and &bgr;-quartz solid solution.

摘要翻译： 用于磁信息存储介质的高刚性玻璃陶瓷基片具有在37至63的范围内的杨氏模量与比重的比率，并且包括在10％至小于20％的范围内的Al 2 O 3。 玻璃陶瓷基体的主要晶相由（1）堇青石或堇青石固溶体组成，（2）选自尖晶石，尖晶石固溶体，顽辉石，顽辉石固溶体，β-石英 和β-石英固溶体。

公开(公告)号：US06387509B1

公开(公告)日：2002-05-14

申请号：US09253963

申请日：1999-02-22

申请人： Naoyuki Goto ,  Kousuke Nakajima

发明人： Naoyuki Goto ,  Kousuke Nakajima

IPC分类号： C03C1012

CPC分类号： G11B5/7315 ,  C03C3/062 ,  C03C3/066 ,  C03C3/068 ,  C03C3/085 ,  C03C3/093 ,  C03C3/095 ,  C03C3/097 ,  C03C10/00 ,  C03C10/0009 ,  C03C10/0027

摘要： A glass-ceramic substrate for a magnetic information recording medium contains, as a main crystal phase or phases, one or more crystal phases selected from the group consisting of &bgr;-quartz (&bgr;-SiO2), &bgr;-quartz solid solution (&bgr;-SiO2 solid solution), &bgr;-spodumene (&bgr;-Li2O.Al2O3.4SiO2), &bgr;-spodumene solid solution (&bgr;-Li2O.Al2O3.4SiO2 solid solution), &bgr;-eucryptite (&bgr;-Li2O.Al2O3.2SiO2, a part of Li2O being capable of being substituted by MgO and/or ZnO) and &bgr;-eucryptite solid solution (&bgr;-Li2O.Al2O3.2SiO2 solid solution, a part of Li2O being capable of being substituted by MgO and/or ZnO). Alternatively, the glass-ceramic contains, as a main crystal phase or phases, gahnite (ZnAl2O4) and/or gahnite solid solution (ZnAl2O4 solid solution). The glass-ceramic substrate has a high heat resisting property and a super flat surface capable of achieving a high recording density according to the perpendicular magnetic recording.

摘要翻译： 用于磁信息记录介质的玻璃陶瓷衬底包含一个或多个选自β-石英（β-SiO 2），β-石英固溶体（β-SiO 2）的晶相作为主晶相或相 固体溶液），β-锂辉石（β-Li2O.Al2O3.4SiO2），β-锂辉石固溶体（β-Li2O.Al2O3.4SiO2固溶体），β-锂辉石（β-Li2O.Al2O3.2SiO2，部分Li2O 能够被MgO和/或ZnO取代）和β-堇红石固溶体（β-Li2O.Al2O3.2SiO2固溶体，Li2O的一部分能够被MgO和/或ZnO取代）。 或者，玻璃陶瓷含有作为主要结晶相或相的高锰矿（ZnAl2O4）和/或高锰矿固溶体（ZnAl2O4固溶体）。 玻璃陶瓷基板具有高的耐热性能和能够根据垂直磁记录获得高记录密度的超平坦表面。

公开(公告)号：US06819526B2

公开(公告)日：2004-11-16

申请号：US10069737

申请日：2002-02-26

申请人： Mariko Kataoka ,  Naoyuki Goto ,  Kousuke Nakajima ,  Junko Ishioka ,  Katsuhiko Yamaguchi ,  Toshitaka Yagi

发明人： Mariko Kataoka ,  Naoyuki Goto ,  Kousuke Nakajima ,  Junko Ishioka ,  Katsuhiko Yamaguchi ,  Toshitaka Yagi

IPC分类号： G11B1702

CPC分类号： G11B5/7315 ,  C03C10/0027 ,  C03C10/0045 ,  G11B5/012 ,  G11B5/82 ,  G11B17/00 ,  G11B23/00

摘要： An information storage disk holding member for holding an information storage disk in position in an information storage disk drive device, the holding member being made of glass-ceramics in which a crystal phase is dispersed in a glass matrix. The holding member has specific rigidity (Young's modulus/specific gravity) of not greater than 37 GPa, specific gravity of not greater than 3.0, coefficient of thermal expansion within a range from −50° C. to +70° C. which is within a range from +35×10−7/° C. to +130×10−7/° C., Young's modulus within a range from 95 GPa to 130 GPa, specific gravity within a range from 2.40 to 2.60 and bending strength within a range from 400 MPa to 800 MPa. There is provided an information storage disk holding member which is capable of coping with a high speed rotation of a disk in conformity with tendencies toward high speed transmission of information, increasing mechanical strength for adaptation to mobile uses, having a thermal expansion property matching that of other drive component parts and eliminating defects caused by solving out of alkali. There is also provided an information storage disk drive device using this holding member.

摘要翻译： 一种信息存储盘保持构件，用于将信息存储盘保持在信息存储盘驱动装置中的适当位置，所述保持构件由将晶相分散在玻璃基体中的玻璃陶瓷制成。 保持构件具有不大于37GPa，比重不大于3.0的比刚度（杨氏模量/比重），在-50℃至+ 70℃的范围内的热膨胀系数 在+ 35×10 -7 /℃至+ 130×10 -7 /℃的范围内，杨氏模量在95GPa至130GPa的范围内，比重在2.40至2.60范围内，弯曲强度在 范围从400MPa到800MPa。提供了一种信息存储盘保持构件，其能够适应于高速传输信息的趋势，提高了盘的高速旋转，增加了适应移动用途的机械强度 具有与其他驱动部件的热膨胀特性相匹配的特征，并且消除由碱析出而引起的缺陷。 还提供了使用该保持构件的信息存储盘驱动装置。

公开(公告)号：US20050065011A1

公开(公告)日：2005-03-24

申请号：US10773934

申请日：2004-02-06

申请人： Naoyuki Goto

发明人： Naoyuki Goto

IPC分类号： C03C10/12 ,  C03C10/14

CPC分类号： C03C3/097

摘要： There are provided glass-ceramics having an ultra low thermal expansion property and super flat surface capable of coping with lithography for the next generation LSI and component parts for semiconductor equipment such as masks, optical reflecting mirrors, wafer stages and reticle stages and various precision parts using such glass-ceramics. Glass-ceramics of the invention have an average linear thermal expansion coefficient within a range of 0.0±0.2×10−7/° C. within a temperature range from 0° C. to 50° C., have difference between the maximum value and the minimum value of ΔL/L of 10×10−7 or below, and comprise SiO2, Al2O3 and P2O5 with the total amount thereof in mass % being within a range from 86.0% to 89.0%.

摘要翻译： 提供具有超低热膨胀特性的玻璃陶瓷和能够应付下一代LSI的光刻的超平坦表面和用于诸如掩模，光反射镜，晶片台和标线片台等各种精密零件的半导体设备的部件 使用这种玻璃陶瓷。 在0℃至50℃的温度范围内，本发明的玻璃陶瓷的平均线性热膨胀系数在0.0±0.2×10 -7 /℃的范围内，在最大值 并且ΔL/ L的最小值为10×10 -7或更低，并且包含SiO 2，Al 2 O 3和P 2 O 5，其总量以质量％计在86.0％至89.0％的范围内。

公开(公告)号：US06677259B2

公开(公告)日：2004-01-13

申请号：US10066821

申请日：2002-02-04

申请人： Naoyuki Goto ,  Mariko Kataoka ,  Donald G. Polensky

发明人： Naoyuki Goto ,  Mariko Kataoka ,  Donald G. Polensky

IPC分类号： C03C1004

CPC分类号： C03C10/0027 ,  G02B5/20 ,  G02B5/226

摘要： Glass-ceramics for a light filter capable of preventing variation of refractive index in a band-pass filter have a coefficient of thermal expansion within a range from 95×10−7/°C. to 140×10−7/°C. within a temperature range from −20° C. to +70° C. and, preferably, Young's modulus of 85 GPa and bending strength of 10 kg/mm2, and light transmittance for plate thickness of 10 mm of 60% or over within a wavelength range from 950 nm to 1600 nm. Predominant crystal phases of these glass-ceramics should preferably be (a) lithium disilicate and (b) one selected from the group consisting of &agr;-quartz, &agr;-quartz solid solution, &agr;-cristobalite and &agr;-cristobalite solid solution.

摘要翻译： 用于能够防止带通滤光器中的折射率变化的光过滤器的玻璃陶瓷的热膨胀系数在95×10 -7 /℃的范围内。 至140×10 -7 /℃。 在-20℃至+ 70℃的温度范围内，优选的杨氏模量为85GPa，弯曲强度为10kg / mm 2，板厚为10mm的透光率为60％， 在950nm至1600nm的波长范围内。 这些玻璃陶瓷的主要晶相应优选为（a）二硅酸锂和（b）选自α-石英，α-石英固溶体，α-方英石和α-方英石固溶体的一种。

公开(公告)号：US06426311B1

公开(公告)日：2002-07-30

申请号：US09663727

申请日：2000-09-15

申请人： Naoyuki Goto ,  Mariko Kataoka ,  Toshitaka Yagi

发明人： Naoyuki Goto ,  Mariko Kataoka ,  Toshitaka Yagi

IPC分类号： C03C1014

CPC分类号： G11B5/7315 ,  C03C10/0027 ,  C03C10/0045 ,  G11B5/012 ,  G11B5/82 ,  G11B17/00 ,  G11B23/00

摘要： There are provided glass-ceramics containing, as a predominant crystal phase or phases, at least one selected from the group consisting of &agr;-cristobalite, &agr;-cristobalite solid solution, &agr;-quartz and &agr;-quartz solid solution, containing substantially no lithium disilicate (Li2O·2SiO2), lithium silicate (Li2O·SiO2), &bgr;-spodumene, &bgr;-eucryptite, &agr;-quartz, mica or fluorrichterite, containing substantially no Cr ingredient or Mn ingredient, and having average linear thermal expansion coefficient within a range from +65×10−7/° C. to +140×10−7/° C. within a temperature range from −50° C. to +70° C., said predominant crystal phase or phases having an average crystal grain diameter of less than 0.10 &mgr;m. The glass-ceramics are suitable for use as a substrate for an information storage medium and also for use as a substrate for a light filter.

摘要翻译： 提供的玻璃陶瓷作为主要晶相或相，含有至少一种选自α-方英石，α-方英石固溶体，α-石英和α-石英固溶体中的至少一种，其基本上不含二硅酸锂 （Li 2 O 2·SiO 2），硅酸锂（Li 2 O 3·SiO 2），β-锂辉石，β-锂钇石，α-石英，云母或氟铁矿，其基本上不含Cr成分或Mn成分，平均线性热膨胀系数在 在-50℃至+ 70℃的温度范围内，+ 65×10 -7 /℃至+ 140×10 -7 /℃，所述主晶相或平均晶粒直径小于0.10 妈妈 玻璃陶瓷适合用作信息存储介质的基板，也可用作光过滤器的基板。

公开(公告)号：US06413890B1

公开(公告)日：2002-07-02

申请号：US09576508

申请日：2000-05-23

申请人： Naoyuki Goto

发明人： Naoyuki Goto

IPC分类号： C03C1004

CPC分类号： C03C10/00 ,  C03C3/097 ,  C03C10/0009 ,  G11B5/7315 ,  Y10S428/90

摘要： A glass-ceramic substrate for a magnetic information storage medium includes, as predominant crystal phases, lithium disilicate (Li2O.2SiO2) and at least one selected from a group consisting of &agr;-quartz (&agr;-SiO2), &agr;-quartz solid solution (&agr;-SiO2 solid solution), &agr;-cristobalite (&agr;-SiO2) and &agr;-cristobalite solid solution (&agr;-SiO2 solid solution) and has a coefficient of thermal expansion of +65 to +130×10−7/° C. at a temperature within a range from −50° C. to +70° C. and surface roughness (Ra) after polishing of 3 Å-9 Å.

摘要翻译： 用于磁信息存储介质的玻璃陶瓷衬底包括作为主晶相的二硅酸锂（Li 2 O 2·SiO 2）和选自α-石英（α-SiO 2），α-石英固溶体 α-SiO 2固溶体），α-方英石（α-SiO 2）和α-方英石固溶体（α-SiO 2固溶体），并且在温度下具有+65至+ 130×10-7 /℃的热膨胀系数 在-50°C至+ 70°C的范围内，抛光后的表面粗糙度（Ra）为3Å。