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    11.
    发明专利
    未知

    公开(公告)号：DE3309219A1

    公开(公告)日：1983-09-29

    申请号：DE3309219

    申请日：1983-03-15

    Applicant: CANON KK

    Inventor： MISUMI TERUO ,  OGAWA KYOSUKE ,  KANBE JUNICHIRO ,  SAITOH KEISHI ,  OSATO YOICHI ,  SHIRAI SHIGERU

    IPC: G03G5/082 ,  G03G5/14

    Abstract: A photoconductive member comprises a support for a photoconductive member and an amorphous layer containing an amorphous material comprising silicon atom as a matrix and having photoconductivity, said amorphous layer comprising a first layer region containing oxygen atom as a constituent atom, the oxygen atom being distributed continuously in the direction of the layer thickness and enriched at the support side, and a second layer region containing an atom of the group III of the periodic table as a constituent atom, said first layer region being internally present at the support side in the amorphous layer, and the layer thickness TB of said second layer region and a layer thickness T resulted from subtracting TB from the layer thickness of the amorphous layer satisfying the relation, TB/T

    14.
    发明专利
    未知

    公开(公告)号：DE69421729D1

    公开(公告)日：1999-12-30

    申请号：DE69421729

    申请日：1994-02-07

    Applicant: CANON KK

    Inventor： OSATO YOICHI ,  MIYATA KATSUMI

    IPC: G11B11/10 ,  G11B11/105

    Abstract: A magnetooptical recording method for overwriting information on a magnetooptical recording medium, which has a first magnetic layer and a second magnetic layer having a larger coercive force and a lower Curie temperature than those of the first magnetic layer, comprises an initialization step of initializing magnetization of the first magnetic layer in one direction, a first type recording step of radiating a light beam by repeating radiation and non-radiation states of the laser beam, while applying a bias magnetic field after the initialization step, a second type recording step of continuously radiating a light beam while applying a bias magnetic field in a direction opposite to the one direction after the initialization step, and a step of selecting one of the first and second type recording steps in accordance with recording information.

    15.
    发明专利
    未知

    公开(公告)号：DE69224947T2

    公开(公告)日：1998-08-13

    申请号：DE69224947

    申请日：1992-07-21

    Applicant: CANON KK

    Inventor： OSATO YOICHI

    IPC: G11B11/10 ,  G11B11/105

    Abstract: A magnetooptic recording medium comprises a substrate and a recording layer which is provided on the substrate and is formed by periodically laminating a plurality of fundamental units. Each of the fundamental units comprises a first layer made of Co, a second layer made of a material selected from Pt, Pd, and Pt-Pd alloy, a third layer made of Co, and a fourth layer made of at least one kind of element selected from Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, and Er.

    Magnetic bubble recording device
    17.
    发明专利
    Magnetic bubble recording device 未知

    公开(公告)号：GB2215542A

    公开(公告)日：1989-09-20

    申请号：GB8902264

    申请日：1989-02-02

    Applicant: CANON KK

    Inventor： OSATO YOICHI

    IPC: G11C19/08

    Abstract: The portable cord-like device has a basic structure including a first magnetic film 11 for forming a magnetic bubble and a second 12 for imparting a biased magnetic field to the first to stably hold the magnetic bubble. A transfer pattern (14 Fig 2B) allows bubble transfer. An alignment pattern (Fig 6) allows for aligning the device with a light beam thereby permitting accurate optical writing, and erasure. The peripheral edge portion of a transfer passage has a surface inclined with respect to the substrate surface. Transfer passages are constituted as intersecting sets (Figs 5, 21, 22).

    PHOTOCONDUCTIVE MEMBER
    18.
    发明专利
    PHOTOCONDUCTIVE MEMBER 未知

    公开(公告)号：CA1245503A

    公开(公告)日：1988-11-29

    申请号：CA420781

    申请日：1983-02-02

    Applicant: CANON KK

    Inventor： OGAWA KYOSUKE ,  SHIRAI SHIGERU ,  KANBE JUNICHIRO ,  SAITOH KEISHI ,  OSATO YOICHI ,  MISUMI TERUO

    IPC: G03G5/082 ,  G03G5/14

    Abstract: A photoconductive member comprises a support for photoconductive member, an interface layer mainly constituted of an amorphous material containing at least silicon atoms and nitrogen atoms as constituent atoms, a rectifying layer mainly comprising an amorphous material containing atoms (A) belonging to the group III or the group V of the periodic table as constituent atoms in a matrix of silicon atoms and an amorphous layer exhibiting photoconductivity mainly constituted of an amorphous material containing at least one of hydrogen atoms or halogen atoms as constituent atoms in a matrix of silicon atoms.

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