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    • 4. 发明授权
    • Multilayer optical disk and method of initializing the same
    • 多层光盘及其初始化方法
    • US06574180B2
    • 2003-06-03
    • US09800859
    • 2001-03-07
    • Kotaro KurokawaKoichi YasudaTakeshi YamasakiTomomi Yukumoto
    • Kotaro KurokawaKoichi YasudaTakeshi YamasakiTomomi Yukumoto
    • G11B374
    • G11B7/24G11B7/00557G11B7/26
    • Initialization nonuniformity due to interference of light which occurs during an initialization process is reduced without causing degradation in the characteristic of signals recorded/reproduced on/from respective recording layers. A multilayer optical disk comprising at least a first information recording layer and a second information recording layer formed, on a substrate, into a multilayer structure with an intermediate layer disposed therebetween is illuminated with initializing light from the side of the first information recording layer to initialize the first information recording layer formed of a phase-change material serving as a recording material. The illumination with the initializing light is performed such that the numerical aperture NA of an objective lens used for illumination with the illuminating light, the longitudinal length L of the beam size of the initializing light, the thickness D of the intermediate layer, and the ratio R1 of the amount of light striking the first information recording layer after passing through the first information recording layer and being reflected by the second information recording layer to the amount of light incident on the first information recording layer satisfy the following relation for a wavelength &lgr;i of the initializing light: L×R1 ≦25[1−exp(−0.0004×NA4×D2)].
    • 由于在初始化过程中发生的光的干扰而导致的初始化不均匀性降低,而不会导致在各记录层上记录/再现的信号的特性的劣化。 至少包括在基板上形成有中间层的多层结构的第一信息记录层和第二信息记录层的多层光盘,用来自第一信息记录层侧的初始化光来初始化 第一信息记录层由用作记录材料的相变材料形成。 利用初始化光进行照明,使得用于照明光照明的物镜的数值孔径NA,初始化光的光束尺寸的纵向长度L,中间层的厚度D和比例 在通过第一信息记录层之后并且被第二信息记录层反射的第一信息记录层的光量与入射在第一信息记录层上的光量的值R1对于波长lambdi的关系满足以下关系: 初始化光:LxR1 <= 25 [1-exp(-0.0004xNA4xD2)]。
    • 5. 发明授权
    • Sealing apparatus for picture tube
    • 显像管密封装置
    • US4772239A
    • 1988-09-20
    • US3025
    • 1987-01-13
    • Koichi Yasuda
    • Koichi Yasuda
    • C03B23/217H01J9/26
    • C03B23/217H01J9/263
    • There is disclosed a sealing apparatus for picture tubes which includes a heater unit. This heater unit is located outside an index table, having bulb holders for retaining the glass bulb, during rotation of the table and is moved onto the table during a halt of the rotation. A bulb neck portion is encompassed with the heater unit to be heated by this unit. In this sealing apparatus for picture tubes, it is feasible to rapidly heat process the bulb neck portion without undergoing influences of external disturbances, whereby sealing of high quality can be obtained.
    • 公开了一种用于显像管的密封装置,其包括加热器单元。 该加热器单元位于分度台外部,具有用于保持玻璃泡的灯泡保持器,在桌子的旋转期间,并且在停止转动期间移动到桌子上。 灯泡颈部包围着被该装置加热的加热器单元。 在这种显象用密封装置中,可以在不受外部干扰的影响的情况下快速加热灯泡颈部,从而可以获得高品质的密封。
    • 8. 发明授权
    • Method of installing mount assembly in cathode ray tube
    • 将安装组件安装在阴极射线管中的方法
    • US4802874A
    • 1989-02-07
    • US21396
    • 1987-03-04
    • Koichi YasudaYoshihiko Kimura
    • Koichi YasudaYoshihiko Kimura
    • H01J9/34H01J9/24H01J9/40H01J9/42
    • H01J9/40H01J9/244
    • There is disclosed a method of installing a mount assembly in a cathode ray tube wherein convergence characteristics are enhanced by properly setting levels of tube of a color cathode ray tube and of an electron gun. When a neck portion of the tube and a stem structure mounted with the electron gun are sealed to each other by heating, a distance between a standard level of the tube and that of the electron gun is measured. Comparison/arithmetic processing is effected both on the thus measured value and on a previously stored standard distance to seek a difference between the two values. The tube body or the electron gun is controlled by a moving operation so that the difference falls within an allowable value. After this, the sealing process is carried out.
    • 公开了一种在阴极射线管中安装安装组件的方法,其中通过适当地设置彩色阴极射线管和电子枪的管的水平来增强会聚特性。 当管的颈部和安装有电子枪的杆结构通过加热彼此密封时,测量管的标准水平和电子枪的标准水平之间的距离。 在这样测量的值和先前存储的标准距离上进行比较/算术处理,以寻求两个值之间的差。 通过移动操作来控制管体或电子枪,使得该差异落在容许值内。 之后,进行密封处理。
    • 9. 发明授权
    • Apparatus for producing picture tube
    • 显像管制造装置
    • US4798552A
    • 1989-01-17
    • US17535
    • 1987-02-24
    • Koichi Yasuda
    • Koichi Yasuda
    • H01J9/24H01J9/42H01J9/18
    • H01J9/244H01J9/42
    • When producing a picture tube, the reference axis of a phosphor screen in the horizontal direction and an in-line horizontal axis of the aperture center of an in-line type electron gun can be aligned highly accurately during a sealing work and picture tubes providing high quality can be obtained with high productivity by use of an apparatus for producing a picture tube which comprises(i) first detection means for detecting a predetermined axis, such as a horizontal axis, of the phosphor screen inside a glass bulb fitted to a bulb holder,(ii) second detection means for detecting a second predetermined axis, such as an in-line horizontal axis of the aperture center, of an in-line type electron gun fitted to a stem mounted on a mount pin, corresponding to the predetermined axis of said phosphor screen;(iii) a calculation circuit for calculating the detection signal by the first detection means and the detection signal by the second detection means and outputting a "same" or "not same" signal;(iv) a sealing machine for sealing the glass neck portion to the stem having mounted thereto the electron gun in accordance with the "same" signal; and(v) a driving unit for relatively rotating the bulb holder or the mount pin in accordance with the "not same" signal.
    • 在制造显像管时,可以在密封作业期间高度精确地对准在线型电子枪的水平方向的荧光屏的基准轴和直径的中心的直列水平轴,并且提供高的显像管 通过使用用于制造显像管的装置,能够以高的生产率获得质量,该装置包括:(i)用于检测安装在灯泡保持架上的玻璃灯泡内的荧光屏的预定轴(如水平轴)的第一检测装置 ,(ii)第二检测装置,用于检测装配到安装在安装销上的杆的直列式电子枪的第二预定轴,例如孔径中心的直列水平轴线,对应于预定轴线 的所述荧光屏; (iii)用于由第一检测装置计算检测信号和由第二检测装置检测信号并输出​​“相同”或“不相同”信号的计算电路; (iv)用于将玻璃颈部密封到根据“相同”信号安装到其上的电子枪的密封机; 和(v)驱动单元,用于根据“不相同”的信号相对旋转灯泡保持器或安装销。