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    • 1. 发明授权
    • Optical recording medium and optical recording method using the same
    • 光记录介质及使用其的光记录方法
    • US5341358A
    • 1994-08-23
    • US757058
    • 1991-09-09
    • Hideo KobayashiOsamu UenoKiichi Ueyanagi
    • Hideo KobayashiOsamu UenoKiichi Ueyanagi
    • B41M5/26G11B7/00G11B7/0045G11B7/0055G11B7/006G11B7/24G11B7/243
    • G11B7/006G11B7/00557
    • An optical recording medium having a layer of recording material provided on a substrate, the material having an optical property which is changed reversibly by means of light or heat, so that writing/reproducing or writing/reproducing/erasing of information is performed by using the reversible change of the optical property of the recording material layer. The recording material is composed of a plurality of elements and is capable of taking, as a melt state thereof, a selected one of a single phase state and a two-phase coexistent state. An optical recording method for performing writing/reproducing/erasing of information uses a reversible change of an optical property of the recording material layer by irradiating the recording material layer with a high-power light beam so as to melt it into a single phase state and then cooling the recording material layer so as to form a phase-changed portion corresponding to a recording state or an erasing state. The recording material layer is irradiated with a low-power light beam so as to be melted into a two-phase coexistence state and then cooled so as to form a phase-changed portion corresponding to an erasing state or a recording state.
    • 一种具有设置在基板上的记录材料层的光学记录介质,该材料具有通过光或热可逆地改变的光学特性,从而通过使用信息的写入/再现或写入/再现/擦除来执行信息的写/ 记录材料层的光学特性的可逆变化。 记录材料由多个元件组成,并且能够将熔融状态作为单相状态和两相共存状态中的一个选择。 用于执行信息的写入/再现/擦除的光学记录方法使用通过用高功率光束照射记录材料层来使记录材料层的光学特性的可逆变化,从而将其熔化成单相状态, 然后冷却记录材料层,以形成对应于记录状态或擦除状态的相变部分。 用低功率光束照射记录材料层,使其熔化成两相共存状态,然后冷却,形成与擦除状态或记录状态对应的相变部。
    • 10. 发明授权
    • Magnetic head having a magnetic recording element including a pair of connected yoke films and magnetic pole film to form a magnetic gap
    • 具有磁记录元件的磁头,磁记录元件包括一对连接的磁轭膜和磁极膜以形成磁隙
    • US06943988B2
    • 2005-09-13
    • US10345354
    • 2003-01-16
    • Kiichi Ueyanagi
    • Kiichi Ueyanagi
    • G11B5/31G11B5/147G11B5/60
    • G11B5/147
    • A process for producing a magnetic head attaining high speed and high density recording, excellent in reproducibility and relatively inexpensive is provided as well as a magnetic head and a magnetic disk unit. A lower yoke film, an insulating film supporting a thin film coil and an upper yoke film connected at a back end thereof to a back end of the lower yoke film are consecutively piled on a back end surface of a flying slider, and a magnetic pole films and a deposited at a tip end of at least one of the lower yoke film and the upper yoke film, so as to form a magnetic gap. The gap of the surface of the magnetic pole facing a magnetic recording medium is determined by the working pattern of the thin film; therefore, a magnetic pole having a high aspect ratio can be easily produced.
    • 提供一种获得高速和高密度记录的磁头的制造方法,再现性优异并且相对便宜的方法以及磁头和磁盘单元。 将下轭铁膜,支撑薄膜线圈的绝缘膜和在其后端连接到下轭铁膜的后端的上轭膜连续地堆叠在飞行滑块的后端表面上,并且磁极 膜,并沉积在下轭铁膜和上轭铁膜中的至少一个的末端,以形成磁隙。 面对磁记录介质的磁极表面的间隙由薄膜的工作图形决定; 因此,可以容易地制造具有高纵横比的磁极。