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：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：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：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：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：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：US20050155386A1

公开(公告)日：2005-07-21

申请号：US10505762

申请日：2003-02-20

申请人： Mariko Kataoka ,  Toshitaka Yagi ,  Yuichi Takamura ,  Naoyuki Goto

发明人： Mariko Kataoka ,  Toshitaka Yagi ,  Yuichi Takamura ,  Naoyuki Goto

IPC分类号： C03C10/00 ,  C03C10/14 ,  C03B32/02

CPC分类号： C03C10/0027

摘要： Obtaining previously a relation between a crystallization temperature and a physical property and a relation between a physical property parameter and the physical property of a glass ceramic, measuring the physical property parameter with respect to the glass ceramic sampled from a manufacturing line of the glass ceramic and controlling an actual crystallization temperature based on the relations so that the manufactured glass ceramic has the desired physical property value.

摘要翻译： 之前获得结晶温度和物理性质之间的关系以及物理性能参数与玻璃陶瓷的物理性质之间的关系，测量相对于从玻璃陶瓷的生产线获取的玻璃陶瓷的物理参数，以及 基于所述关系控制实际结晶温度，使得所制造的玻璃陶瓷具有期望的物理性质值。

公开(公告)号：US06420286B1

公开(公告)日：2002-07-16

申请号：US09593551

申请日：2000-06-14

申请人： Naoyuki Goto ,  Junko Ishioka ,  Yasuyuki Kawashima

发明人： Naoyuki Goto ,  Junko Ishioka ,  Yasuyuki Kawashima

IPC分类号： C03C1004

CPC分类号： G11B5/7315 ,  C03C10/0027

摘要： A glass-ceramic suitable for use as a light filter includes, as a predominant crystal phase, lithium disilicate (Li2O.2SiO2) or a combination of lithium disilicate and at least one crystal phase selected from the 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). This substrate has Young's modulus (GPa)/specific gravity of 37 or over, surface roughness Ra (arithmetic mean roughness) of 5.0 Å or below, a coefficient of thermal expansion within a temperature range from −50° C. to +70° C. which ranges from +65×10−7/° C. to +130×10−7/° C. and bending strength of 400 MPa or over.

摘要翻译： 适合用作光过滤器的玻璃陶瓷包括作为主要晶相的二硅酸锂（Li 2 O 2·SiO 2）或二硅酸锂和至少一种选自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）。 该基板的杨氏模量（GPa）/比重为37以上，表面粗糙度Ra（算术平均粗糙度）为5.0以下，在-50℃〜+ 70℃的温度范围内的热膨胀系数 其范围为+ 65×10 -7 /℃至+ 130×10 -7 /℃，弯曲强度为400MPa或更高。

公开(公告)号：US06582826B1

公开(公告)日：2003-06-24

申请号：US09594105

申请日：2000-06-14

申请人： Naoyuki Goto ,  Junko Ishioka ,  Yasuyuki Kawashima

发明人： Naoyuki Goto ,  Junko Ishioka ,  Yasuyuki Kawashima

IPC分类号： B32B1700

CPC分类号： G11B5/7315 ,  C03C10/0027 ,  C03C10/0045

摘要： There is provided a glass-ceramic substrate which is suitable for use as a light filter. The glass-ceramic has a Young's modulus (GPa) within a range from 95 to 120 and includes 5.3 to 8 weight percent (expressed on an oxide basis) of Al2O3. Tile glass ceramic substrate preferably has, as its predominant crystal phases, (a) lithium disilicate (Li2O·2SiO2) and b) at least one of &agr;-quartz (&agr;-SiO2) and &agr;-quartz solid solution (&agr;-SiO2 solid solution), has a specific gravity within a range from 2.4 to 2.6 and has a coefficient of thermal expansion within a range from 65×10−7/° C. to 130×10−7/° C. within a temperature range from −50° C. to +70° C.

摘要翻译： 提供了适合用作滤光器的玻璃陶瓷基板。 玻璃陶瓷的杨氏模量（GPa）在95〜120的范围内，含有5.3〜8重量％（以氧化物为基准）的Al 2 O 3。 瓷砖玻璃陶瓷基板优选具有（a）二硅酸锂（Li 2 O 2·SiO 2）和b）至少一种α-石英（α-SiO 2）和α-石英固溶体（α-SiO 2固溶体 ）的比重在2.4至2.6的范围内，并且在从-50℃至-60℃的温度范围内具有在65×10 -7 /℃至130×10 -7 /℃的范围内的热膨胀系数 + 70°C

公开(公告)号：US06383645B1

公开(公告)日：2002-05-07

申请号：US09260768

申请日：1999-03-02

申请人： Naoyuki Goto ,  Junko Ishioka ,  Yasuyuki Kawashima

发明人： Naoyuki Goto ,  Junko Ishioka ,  Yasuyuki Kawashima

IPC分类号： B32B1706

CPC分类号： G11B5/7315 ,  C03C10/0027 ,  C12N2510/00 ,  C12N2517/04 ,  Y10S428/90

摘要： There is provided a glass-ceramic substrate for an information storage medium usable in an information storage device of the ramp loading system. The glass ceramic substrate has a Young's modulus (GPa)/specific gravity of 37 or over and includes 5.3 to 8 weight percent (expressed on an oxide basis) of Al2O3. The glass ceramic substrate has, as its predominant crystal phases, lithium disilicate (Li2O.2SiO2) and &agr;-quartz (&agr;-SiO2), has a coefficient of thermal expansion within a range from 65×10−7/° C. to 130×10−7/° C. within a temperature range from −50° C. to +70° C. and has a surface roughness (Ra) (arithmetic mean roughness) of 9 Å or below.

摘要翻译： 提供了可用于斜坡加载系统的信息存储装置中的信息存储介质的玻璃陶瓷基板。 玻璃陶瓷基板的杨氏模量（GPa）/比重为37以上，并且包含5.3〜8重量％（以氧化物为基准）的Al 2 O 3。 作为其主要晶相，玻璃陶瓷衬底具有二硅酸锂（Li 2 O 2·SiO 2）和α-石英（α-SiO 2），其热膨胀系数在65×10 -7 /℃至130×10 -7 /℃，在-50℃至+ 70℃的温度范围内，并具有9或更低的表面粗糙度（Ra）（算术平均粗糙度）。