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    Glass substrate for magnetic disks
    1.
    发明授权
    Glass substrate for magnetic disks 失效
    磁盘用玻璃基板

    公开(公告)号：US06132843A

    公开(公告)日：2000-10-17

    申请号：US969474

    申请日：1997-11-13

    申请人： Yasunao Kuroda ,  Yoshihiro Matsuno ,  Shinya Katayama ,  Akihiro Koyama ,  Jyunji Kurachi

    发明人： Yasunao Kuroda ,  Yoshihiro Matsuno ,  Shinya Katayama ,  Akihiro Koyama ,  Jyunji Kurachi

    IPC分类号： B23K26/00 ,  C03C3/087 ,  C03C23/00 ,  G11B5/73 ,  G11B5/84 ,  C02C3/087 ,  G11B5/74 ,  G11B5/82

    CPC分类号： G11B5/8404 ,  B23K26/0084 ,  C03C23/0025 ,  C03C3/087 ,  G11B5/7315 ,  Y10T428/21 ,  Y10T428/24355 ,  Y10T428/268 ,  Y10T428/315

    摘要： A glass substrate for a magnetic disk of the present invention is one in which a laser beam is irradiated on a main surface thereby forming a large number of protrusions thereon to form texture thereon, each of said protrusions being formed by a protruded portion having a convex shape, said glass having a composition in which 0.2 to 3 wt % of an oxide of a transition metal is contained and an absorption coefficient with respect to a wavelength of a light at 266 nm being within a range of 0.03 to 2 .mu.m.sup.-1, and by setting the absorption coefficient of the glass with respect to a wavelength of a light at 266 nm within a range of 0.03 to 2 .mu.m.sup.-1 and irradiating a laser beam having a wavelength in a range of ultraviolet rays selectively on the main surface of a glass substrate at predetermined intervals, texture comprising a large number of protrusions formed by protruded portions each having a small diameter and a convex shape is formed.

    摘要翻译： 本发明的磁盘用玻璃基板是将激光束照射在主表面上，由此在其上形成多个突起而形成纹理的突起，其中每个突起由具有凸起的突出部分形成 所述玻璃具有含有0.2〜3重量％的过渡金属的氧化物的组成，相对于266nm的光的波长的吸收系数在0.03〜2μm-1的范围内 并且通过将相对于266nm处的波长的玻璃的吸收系数设定在0.03〜2μm-1的范围内，并且将紫外线范围内的波长的激光束选择性地照射在主体上 形成具有规定间隔的玻璃基板的表面，由具有小直径和凸形的突出部形成的包含大量突起的织构构成。

    Magnetic record medium having a sputter formed thin film texture with second projections of a height lower than first projections
    5.
    发明授权
    Magnetic record medium having a sputter formed thin film texture with second projections of a height lower than first projections 有权
    具有溅射形成的薄膜结构的磁记录介质，其高度低于第一突起的第二突起

    公开(公告)号：US06268979B1

    公开(公告)日：2001-07-31

    申请号：US09261827

    申请日：1999-03-03

    申请人： Yasunao Kuroda

    发明人： Yasunao Kuroda

    IPC分类号： G11B582

    CPC分类号： G11B5/82 ,  C03C17/36 ,  C03C17/3649 ,  C03C17/40 ,  C03C21/002 ,  C03C23/0025 ,  C03C2217/77 ,  C03C2217/78 ,  C03C2218/32 ,  G11B5/7325

    摘要： A magnetic recording medium includes a substrate, a data region and a CSS region on a surface of the substrate. Information is recorded in the data region, and a magnetic head is held stationary in the CSS region. A thin film texture is fabricated in the data region by sputtering, and a laser texture is fabricated in the CSS region by laser irradiation. The laser texture includes a plurality of first projections. The thin film texture includes a plurality of second projections. The second projections are lower in height than the first projections.

    摘要翻译： 磁记录介质包括基板表面上的基板，数据区和CSS区。 信息被记录在数据区域中，磁头在CSS区域中保持静止。 通过溅射在数据区域中制造薄膜纹理，并且通过激光照射在CSS区域中制造激光纹理。 激光纹理包括多个第一突起。 薄膜纹理包括多个第二突起。 第二个突出部分的高度比第一个投影高。

    Flat type fluorescent lamp
    6.
    发明授权
    Flat type fluorescent lamp 失效
    平板式荧光灯

    公开(公告)号：US06255782B1

    公开(公告)日：2001-07-03

    申请号：US09569752

    申请日：2000-05-12

    申请人： Yasunao Kuroda ,  Kenichiro Matsumoto ,  Mitsuya Ozaki

    发明人： Yasunao Kuroda ,  Kenichiro Matsumoto ,  Mitsuya Ozaki

    IPC分类号： G09G310

    CPC分类号： H05B41/2806 ,  H05B41/24 ,  Y02B20/22

    摘要： A flat type fluorescent lamp, obtaining an improvement in efficiency of brightness and being adjustable in an emitted light amount thereof, while maintaining a uniform light emission across the surface thereof, and illuminating with no use of mercury therein, comprising a sealed container being defined between a front glass substrate and a rear glass substrate which are hermetically bonded to each other, so as to enclose a rare gas as discharge gas therein, edge electrodes, having width from 2.5 mm to 10 mm and being provided at both end portions on one surface of the sealed container, and other edge electrodes, having width from 5 mm to 20 mm and being provided at both end portions on the other surface thereof, wherein the edge electrodes on the same side surfaces are connected to each other, a first inverter is connected between the one edge electrode P3 and a central electrode P6 which is provided in a central portion of the one surface, and a second inverter is connected between the other edge electrode P4 and the central electrode P6, wherein the first inverter and the second inverter provide rectangular waveform outputs, being same in frequency but having phases different to each other, thereby illuminating the lamp.

    摘要翻译： 一种扁平型荧光灯，在保持其表面上的均匀发光的同时，可以获得亮度效率的提高并且在其发射光量中可调节，并且在其中不使用汞进行照明，包括密封容器 前玻璃基板和后玻璃基板，其彼此气密地接合，以将稀有气体作为放电气体包围，边缘电极的宽度为2.5mm至10mm，并且设置在一个表面的两个端部 密封容器的边缘电极和其他边缘电极，其宽度为5mm至20mm，并且设置在另一个表面的两个端部，其中相同侧表面上的边缘电极彼此连接，第一反相器 连接在一个边缘电极P3和设置在一个表面的中心部分的中心电极P6之间，第二反相器连接在第二 其他边缘电极P4和中心电极P6，其中第一反相器和第二反相器提供矩形波形输出，频率相同但具有彼此不同的相位，从而照亮灯。

    Glass substrate for magnetic disks
    8.
    发明授权
    Glass substrate for magnetic disks 失效
    磁盘用玻璃基板

    公开(公告)号：US5902665A

    公开(公告)日：1999-05-11

    申请号：US920794

    申请日：1997-08-29

    申请人： Yasunao Kuroda

    发明人： Yasunao Kuroda

    IPC分类号： C03C3/087 ,  C03C4/00 ,  C03C23/00 ,  G11B5/62 ,  G11B5/73 ,  G11B5/84 ,  H01S3/00 ,  G11B5/74 ,  G11B5/82

    CPC分类号： G11B5/84 ,  C03C23/0025 ,  C03C3/087 ,  G11B5/7315 ,  Y10T428/21 ,  Y10T428/268 ,  Y10T428/315

    摘要： A glass substrate for a magnetic disk of the present invention is one in which a laser beam is irradiated on a magnetic recording surface side thereby forming a large number of protrusions thereon to form texture thereon, each of the protrusions having a convex shape, an optical absorption coefficient of a glass with respect to a wavelength of a laser beam at 266 nm being within a range of 20 to 2000 mm.sup.-1, the glass having a composition by weight of:silicon oxide (SiO.sub.2): 58 to 66%,aluminum oxide (Al.sub.2 O.sub.3): 13 to 19%,lithium oxide (Li.sub.2 O): 3 to 4.5%,sodium oxide (Na.sub.2 O): 6 to 13%,potassium oxide (K.sub.2 O); 0 to 5%,R.sub.2 O: 9 to 18% (provided R.sub.2 O=Li.sub.2 O+NaO+K.sub.2 O),magnesium oxide (MgO): 0 to 3.5%,calcium oxide (CaO): 1 to 7%;strontium oxide (SrO): 0 to 2%;barium oxide (BaO): 0 to 2%,RO: 2 to 10% (provided RO=MgO+CaO+SrO+BaO), andiron oxide (Fe.sub.2 O.sub.3): 0.05 to 2%,titanium oxide (TiO.sub.2): 0 to 2%,cerium oxide(CeO.sub.2): 0 to 2%, andmanganese oxide(MnO): 0 to 1%,(provided that Fe.sub.2 O.sub.3 +TiO.sub.2 +CeO.sub.2 +MnO=0.05 to 3%).

    摘要翻译： 本发明的磁盘用玻璃基板是将激光束照射在磁记录面侧，在其上形成大量突起而形成纹理的结构，每个突起具有凸形，光学 相对于266nm处的激光束的波长的玻璃的吸收系数在20〜2000mm -1的范围内，玻璃的组成为：氧化硅（SiO 2）：58〜66％，铝 氧化物（Al 2 O 3）：13〜19％，氧化锂（Li 2 O）：3〜4.5％，氧化钠（Na 2 O）：6〜13％，氧化钾（K 2 O） 0〜5％，R2O：9〜18％（R2O = Li2O + NaO + K2O），氧化镁（MgO）：0〜3.5％，氧化钙（CaO）：1〜7％ 氧化锶（SrO）：0〜2％; 氧化钡（BaO）：0〜2％，RO：2〜10％（RO = MgO + CaO + SrO + BaO）和氧化铁（Fe2O3）0.05〜2％，氧化钛（TiO 2）：0〜 2％，氧化铈（CeO 2）：0〜2％，氧化锰（MnO）：0〜1％（Fe2O3 + TiO2 + CeO2 + MnO = 0.05〜3％）。