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    • 24. 发明授权
    • Plasma information display element and method for producing the same
    • 等离子体信息显示元件及其制造方法
    • US06744201B2
    • 2004-06-01
    • US10255076
    • 2002-09-26
    • Junichiro NakayamaMasanobu Tanaka
    • Junichiro NakayamaMasanobu Tanaka
    • H01J1749
    • H01J11/40H01J11/12
    • A plasma information display element of the present invention includes a first substrate; a second substrate opposing the first substrate; a plurality of barrier ribs provided between the first substrate and the second substrate; and a plurality of discharge channels defined by the first substrate, the second substrate and the barrier ribs. The plasma information display element further includes: an anode and a cathode provided on one side of the first substrate that is closer to the second substrate; and a protective layer provided so as to cover the anode and the cathode, wherein the protective layer is a layer that contains (220)-oriented MgO and (200)-oriented MgO.
    • 本发明的等离子体信息显示元件包括:第一基板; 与所述第一基板相对的第二基板; 设置在所述第一基板和所述第二基板之间的多个障壁; 以及由第一基板,第二基板和障壁限定的多个排出通道。 等离子体信息显示元件还包括:阳极和阴极,设置在第一基板的靠近第二基板的一侧; 以及设置成覆盖阳极和阴极的保护层,其中保护层是包含(220)取向的MgO和(200)取向的MgO的层。
    • 26. 发明授权
    • Magneto-optical recording medium having a reproducing layer with
different magnetization directions in different temperature ranges
    • 具有在不同温度范围内具有不同磁化方向的再现层的磁光记录介质
    • US5825723A
    • 1998-10-20
    • US685534
    • 1996-07-24
    • Junji HirokaneJunichiro NakayamaAkira Takahashi
    • Junji HirokaneJunichiro NakayamaAkira Takahashi
    • G11B11/10G11B11/105G11B11/00
    • G11B11/10586
    • A non-magnetic intermediate layer for intercepting magnetic exchange interaction is provided between a recording layer and a reproducing layer which are composed of a magnetic thin film with perpendicular magnetization. At this time, the reproducing layer is formed so that when an external magnetic field is applied thereto in reproducing information, its magnetization direction is arranged in the direction of the external magnetic field in a first temperature range, and when a light beam for reproduction is projected thereto and the reproducing layer is in a second temperature, the magnetization direction is arranged in the direction of a leakage magnetic flux generated from the recording layer, and is again arranged in the direction of the external magnetic field in a third temperature range. As a result, a rise and a fall of a reproducing signal detected from the reproducing layer can be made sharp, thereby achieving recording and reproducing at high density.
    • 在由具有垂直磁化的磁性薄膜组成的记录层和再现层之间提供用于截取磁交换相互作用的非磁性中间层。 此时,再现层形成为当再现信息中施加外部磁场时,其磁化方向在第一温度范围内沿外部磁场的方向排列,并且当用于再现的光束为 投影到其上并且再现层处于第二温度,磁化方向被布置在从记录层产生的泄漏磁通的方向上,并且在第三温度范围内再次设置在外部磁场的方向上。 结果,可以使从再现层检测到的再现信号的上升和下降变得尖锐,从而实现高密度的记录和再现。
    • 27. 发明授权
    • Magneto-optical recording medium having a plurality of magnetic layers
    • 具有多个磁性层的磁光记录介质
    • US5768218A
    • 1998-06-16
    • US803274
    • 1997-02-20
    • Junichiro NakayamaYoshiteru MurakamiJunji HirokaneAkira Takahashi
    • Junichiro NakayamaYoshiteru MurakamiJunji HirokaneAkira Takahashi
    • G11B11/10G11B11/105G11B11/00
    • G11B11/10584G11B11/10586G11B11/10506G11B11/10515G11B11/10521
    • A magneto-optical recording medium has a transparent substrate, a first magnetic layer, first intermediate layer, a second magnetic layer, and a third magnetic layer provided in this order. The first magnetic layer has an in-plane magnetization at room temperature, while a transition from the in-plane magnetization to a perpendicular magnetization occurs to the first magnetic layer with a temperature rise. The first intermediate layer is made of a non-magnetic substance. The second magnetic layer is a film having a perpendicular magnetization. The third magnetic layer is a film having a perpendicular magnetization, has a coercive force smaller than that of the second magnetic layer at room temperature, and has a Curie temperature higher than that of the second magnetic layer. The light intensity modulation overwriting method is applicable to the magneto-optical recording medium thus arranged, superior reproduction signal characteristics can be obtained with respect to this magneto-optical recording medium, and reproduction can be carried out with respect to the recording medium even though it has recording bits whose each diameter is smaller than that of a light beam. Thus it is possible to provide the magneto-optical recording medium suitable for high density recording.
    • 磁光记录介质具有依次设置的透明基板,第一磁性层,第一中间层,第二磁性层和第三磁性层。 第一磁性层在室温下具有平面内的磁化强度,而从第一磁性层的温度上升发生从面内磁化向垂直磁化的转变。 第一中间层由非磁性物质制成。 第二磁性层是具有垂直磁化强度的膜。 第三磁性层是具有垂直磁化的膜,在室温下的矫顽力小于第二磁性层的矫顽力,并且居里温度高于第二磁性层的居里温度。 光强度调制重写方法适用于如此布置的磁光记录介质,可以获得相对于该磁光记录介质的优良再现信号特性,并且可以相对于记录介质进行再现,即使它 具有每个直径小于光束直径的记录位。 因此,可以提供适合于高密度记录的磁光记录介质。
    • 28. 发明授权
    • Magneto-optical recording medium and method of recording and reproducing
using the same
    • 磁光记录介质及使用其的记录和再现方法
    • US5683803A
    • 1997-11-04
    • US433088
    • 1995-05-03
    • Junichiro NakayamaMichinobu MiedaJunji HirokaneAkira TakahashiKenji Ohta
    • Junichiro NakayamaMichinobu MiedaJunji HirokaneAkira TakahashiKenji Ohta
    • G11B11/10G11B11/105G11B5/66B32B5/16
    • G11B11/10586G11B11/10506G11B11/10515G11B11/10523Y10S428/90Y10T428/26Y10T428/265
    • A magneto-optical recording medium includes a first magnetic layer and a second magnetic layer being laminated. When information is to be recorded on the first magnetic layer, first, a magnetization direction in the second magnetic layer is arranged in one direction with an application of an initialization magnetic field. Then, an intensity modulated light beam is projected while applying thereto a recording magnetic field so as to change the magnetization direction in the second magnetic layer. Thereafter, the magnetization direction in the second magnetic layer is copied to the first magnetic layer, thereby recording information. The first magnetic layer has a magnetization in an intermediate direction between a perpendicular direction and an in-plane direction at room temperature, while has a perpendicular magnetization at above a predetermined temperature. Therefore, a smaller exchange coupling force is exerted from the first magnetic layer to the second magnetic layer at room temperature, thereby enabling a rewriting information with a smaller initialization magnetic field compared with the conventional method, thereby achieving a reduction in size of the apparatus and power conservation.
    • 磁光记录介质包括层叠的第一磁性层和第二磁性层。 当要在第一磁性层上记录信息时,首先,通过施加初始化磁场,将第二磁性层中的磁化方向布置在一个方向上。 然后,施加强度调制光束,同时向其施加记录磁场,以改变第二磁性层中的磁化方向。 此后,将第二磁性层中的磁化方向复制到第一磁性层,从而记录信息。 第一磁性层在室温下具有在垂直方向和面内方向之间的中间方向上的磁化强度,同时具有高于预定温度的垂直磁化强度。 因此,与常规方法相比,在室温下从第一磁性层向第二磁性层施加较小的交换耦合力,从而能够实现与常规方法相比具有较小初始化磁场的重写信息,从而实现装置的尺寸减小 省电。
    • 29. 发明授权
    • Magneto-optical disk and the reproducing method thereof
    • 磁光盘及其再现方法
    • US5615182A
    • 1997-03-25
    • US511283
    • 1995-08-04
    • Yoshiteru MurakamiJunsaku NakajimaAkira TakahashiJunichiro NakayamaKenji Ohta
    • Yoshiteru MurakamiJunsaku NakajimaAkira TakahashiJunichiro NakayamaKenji Ohta
    • G11B11/10G11B11/105G11B11/00
    • G11B11/10515G11B11/10595
    • A magneto-optical disk, which possesses a disc-shaped substrate and a recording layer composed of a perpendicular magnetization film that is formed on the substrate, characterized in having: an area wherein magnetic domains having an upward magnetization and magnetic domains having a downward magnetization are alternately aligned along at least one circuit of the disk, the area being formed on the recording layer, the length of the magnetic domains having the upward magnetization being virtually equal to the length of the magnetic domains having the downward magnetization. This invention also has a reproducing method which is characterized in that, when information is reproduced by projecting a light beam onto the magneto-optical recording disk, the intensity of the light beam is adjusted so as to maximize the amplitude of a reproduced signal that is obtained from the area. With the above arrangement, a high-quality reproduced signal can be obtained independent of the characteristics of individual magneto-optical disks.
    • 一种磁光盘,其具有盘形基板和由形成在基板上的垂直磁化膜构成的记录层,其特征在于具有:具有向上磁化的磁畴和具有向下磁化的磁畴的区域 沿着盘的至少一个电路交替排列,所述区域形成在记录层上,具有向上磁化的磁畴的长度实质上等于具有向下磁化的磁畴的长度。 本发明还具有一种再现方法,其特征在于,当通过将光束投射到磁光记录盘上来再现信息时,调整光束的强度,以使得再现信号的幅度最大化 从该地区获得。 通过上述配置,可以独立于各个磁光盘的特性来获得高质量的再生信号。