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    Magnetic records medium having multiple magnetic layers for recording in long and short wavelength
    2.
    发明授权
    Magnetic records medium having multiple magnetic layers for recording in long and short wavelength 失效
    具有多个用于长波长和短波长记录的磁性层的磁记录介质

    公开(公告)号：US5418077A

    公开(公告)日：1995-05-23

    申请号：US885335

    申请日：1992-05-19

    申请人： Toshihiko Oguchi ,  Hajime Takeuchi ,  Seiichi Tobisawa ,  Toshio Fukaya ,  Ken-ichi Furuhata

    发明人： Toshihiko Oguchi ,  Hajime Takeuchi ,  Seiichi Tobisawa ,  Toshio Fukaya ,  Ken-ichi Furuhata

    IPC分类号： C09D5/23 ,  C09D175/00 ,  C09D175/04 ,  G11B5/716 ,  G11B5/73 ,  G11B5/66 ,  G11B5/70 ,  G11B5/72

    CPC分类号： G11B5/716 ,  Y10S428/90

    摘要： A magnetic recording medium comprises a non-magnetic base material; a lower magnetic layer containing a magnetic powder for recording in a long wavelength range and a resin binder; an upper magnetic layer containing a magnetic powder for recording in a short wavelength range and a resin binder; and an intermediate layer disposed between the two magnetic layers. By properly selecting the type and amount of resin binder contained in the upper magnetic layer and by disposing the intermediate layer whose main component is a resin binder, dispersion property of the magnetic powder in the upper magnetic layer can highly be improved, and thin and smooth magnetic layers can be obtained. Thus, the recording medium provides excellent reproduction characteristics in the wide wavelength range and has excellent running durability. In particular, the reproduction characteristics in a short wavelength range can be improved. A hexagonal ferrite powder is suitably used as the magnetic powder for recording in the short wavelength range. As the resin binder for the intermediate layer, a polyisocyanate compound whose molecular weight is 1,000 or less is particularly effective.

    摘要翻译： 磁记录介质包括非磁性基材; 包含用于长波长范围记录的磁粉的下磁性层和树脂粘合剂; 含有用于在短波长范围内记录的磁粉的上磁性层和树脂粘合剂; 以及设置在两个磁性层之间的中间层。 通过适当选择上层磁性层中所含的树脂粘合剂的种类和数量，通过设置主要成分为树脂粘合剂的中间层，可以大幅提高磁性粉末在上层磁性层中的分散性，薄而光滑 可以获得磁性层。 因此，记录介质在宽波长范围内提供优异的再现特性并且具有优异的运行耐久性。 特别地，可以提高短波长范围内的再现特性。 六方晶系铁氧体粉末适合用作在短波长范围内记录的磁粉。 作为中间层的树脂粘合剂，分子量为1000以下的多异氰酸酯化合物特别有效。

    Method of making a solar energy collector element
    3.
    发明授权
    Method of making a solar energy collector element 失效
    制造太阳能收集器元件的方法

    公开(公告)号：US4490412A

    公开(公告)日：1984-12-25

    申请号：US384397

    申请日：1982-06-02

    申请人： Masahiko Yotuyanagi ,  Toshio Fukaya

    发明人： Masahiko Yotuyanagi ,  Toshio Fukaya

    IPC分类号： F24J2/48 ,  B05B5/00 ,  B05D5/00 ,  B05D5/12 ,  C23C11/10

    CPC分类号： F24J2/487 ,  Y02E10/40

    摘要： There is disclosed a method of making a solar energy collector element which comprises the step of forming a carbon containing film on at least the sunlight receiving surface of a substrate which is made of an iron metal material, and then heat-treating at least the sunlight receiving surface in an oxidizing atmosphere. The solar energy collector element made by the method of the present invention is superior in selective absorption characteristics for the solar energy and inexpensive in manufacturing.

    摘要翻译： 公开了一种制造太阳能收集器元件的方法，该方法包括在至少由铁金属材料制成的基板的阳光接收表面上形成含碳膜的步骤，然后至少对阳光进行热处理 在氧化气氛中接收表面。 通过本发明的方法制造的太阳能收集器元件在太阳能的选择吸收特性上优异，制造便宜。

    Flat-plate lens
    5.
    发明授权
    Flat-plate lens 失效
    平板镜头

    公开(公告)号：US07099264B2

    公开(公告)日：2006-08-29

    申请号：US10442213

    申请日：2003-05-21

    申请人： Toshio Fukaya ,  Junji Tominaga

    发明人： Toshio Fukaya ,  Junji Tominaga

    IPC分类号： G11B7/00

    CPC分类号： G11B7/252 ,  B82Y10/00 ,  G11B7/2531 ,  G11B7/2532 ,  G11B7/2533 ,  G11B7/2534 ,  G11B7/266 ,  G11B2007/2571 ,  G11B2007/25713

    摘要： The invention discloses a flat-plate lens to be built in an optical recording medium for improving the image-forming characteristics of the recording medium. The flat-plate lens of the invention comprises a layered thin film having a periodical structure in the direction of thickness thereof corresponding to a wavelength slightly longer than the wavelength of the light used for recording and retrieving information into and from the recording medium. The thin film of a periodical structure is formed by alternate lamination of pluralities of layers two materials having different refractive indices such as a combination of MgF2 and ZnS. When the thin film having such a periodical structure is formed with good uniformity allover the surface, the image-forming performance on the recording layer can be uniform irrespective of the position on the flat-plate lens.

    摘要翻译： 本发明公开了一种内置在光记录介质中的平板透镜，用于改善记录介质的成像特性。 本发明的平板透镜包括层状薄膜，其厚度方向上的周期结构对应于比用于记录和记录介质的信息的光的波长略长的波长。 周期性结构的薄膜通过多层两层具有不同折射率的材料（例如MgF 2 N 2和ZnS的组合）的层叠而形成。 当具有这种周期性结构的薄膜在表面上形成均匀的均匀性时，与平板透镜上的位置无关地，记录层上的图像形成性能可以是均匀的。