公开(公告)号：EP0420112B1

公开(公告)日：1998-12-23

申请号：EP90118321.0

申请日：1990-09-24

申请人： Hitachi, Ltd.

发明人： Sato, Yoshio ,  Tsuboi, Nobuyoshi ,  Minemura, Hiroyuki ,  Andoh, Hisashi ,  Nagai, Masaichi ,  Ikuta, Isao ,  Kato, Yoshimi ,  Maeda, Yoshihito ,  Sugita, Tatsuya ,  Sugita, Yutaka

IPC分类号： G11B7/00 ,  G11B11/10 ,  G11B23/03

CPC分类号： G11B19/00 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/24 ,  G11B11/10506 ,  G11B11/10517 ,  G11B11/10521 ,  G11B11/10523 ,  G11B11/10552 ,  G11B11/10584 ,  G11B11/10595 ,  G11B23/0316

公开(公告)号：EP0432779B1

公开(公告)日：1997-04-09

申请号：EP90124127.3

申请日：1990-12-13

申请人： HITACHI, LTD.

发明人： Tsuboi, Nobuyoshi ,  Sato, Yoshio ,  Minemura, Hiroyuki ,  Andoh, Hisashi ,  Nagai, Masaichi ,  Ikuta, Isao ,  Katou, Yoshimi ,  Maeda, Yoshihito ,  Sugita, Tatsuya ,  Sugita, Yutaka

IPC分类号： G11B7/24 ,  G11B23/03

CPC分类号： G11B23/0316 ,  G11B7/0033 ,  G11B7/12 ,  G11B7/135 ,  G11B7/24

公开(公告)号：EP0420112A2

公开(公告)日：1991-04-03

申请号：EP90118321.0

申请日：1990-09-24

申请人： HITACHI, LTD.

发明人： Sato, Yoshio ,  Tsuboi, Nobuyoshi ,  Minemura, Hiroyuki ,  Andoh, Hisashi ,  Nagai, Masaichi ,  Ikuta, Isao ,  Kato, Yoshimi ,  Maeda, Yoshihito ,  Sugita, Tatsuya ,  Sugita, Yutaka

IPC分类号： G11B7/00 ,  G11B11/10 ,  G11B23/03

CPC分类号： G11B19/00 ,  G11B7/0033 ,  G11B7/0037 ,  G11B7/00454 ,  G11B7/00557 ,  G11B7/24 ,  G11B11/10506 ,  G11B11/10517 ,  G11B11/10521 ,  G11B11/10523 ,  G11B11/10552 ,  G11B11/10584 ,  G11B11/10595 ,  G11B23/0316

摘要： The information processor uses a portable memory which is able to be overwritten by laser power modula­tion system. The memory includes a disk-type recording medium (145) incorporated rotatably in a thin case, and carries out write/read/erase by means of a first magnetic field application device (181), a second magnetic field application device (180), and an optical head (210) ir­radiating light through this case.

摘要翻译： 信息处理器使用能够被激光功率调制系统覆盖的便携式存储器。 存储器包括可旋转地并入薄盒的盘式记录介质（145），并且通过第一磁场施加装置（181），第二磁场施加装置（180）进行写入/读取/擦除， 以及通过该壳体照射光的光学头（210）。

公开(公告)号：EP0347801A2

公开(公告)日：1989-12-27

申请号：EP89111107.2

申请日：1989-06-19

申请人： HITACHI, LTD.

发明人： Maeda, Yoshihito ,  Ikuta, Isao ,  Andoh, Hisashi ,  Nagai, Masaichi ,  Katoh, Yoshimi ,  Sato, Yoshio ,  Tsuboi, Nobuyoshi ,  Minemura, Hiroyuki

IPC分类号： G11B7/00 ,  G11B7/24

CPC分类号： G11B7/257 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/00557 ,  G11B7/24 ,  G11B7/243 ,  G11B7/2531 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146

摘要： The present invention provides an optical recording medium using an amorphous-crystalline phase-­change for recording and erasing, wherein reflectivity of an optical recording medium-constituting recording film in an amorphous state is larger than that of the optical recording medium-constituting recording film in a crystalline state, or wherein absorptivity of an optical recording medium-constituting recording film in an amorphous state is smaller than that of the optical recording medium-constituting recording film in a crystalline state.

摘要翻译： 本发明提供了一种使用非晶相变记录和擦除的光记录介质，其中非晶态记录介质构成记录膜的反射率大于光记录介质构成记录膜的反射率 结晶状态，或其中非结晶状态的光学记录介质构成记录膜的吸收率小于结晶状态的记录介质构成记录膜的吸收率。

公开(公告)号：EP0130719B1

公开(公告)日：1989-12-06

申请号：EP84304015.5

申请日：1984-06-14

申请人： HITACHI, LTD.

发明人： Minemura, Tetsuro ,  Ando, Hisashi ,  Kita, Yoshiaki ,  Ikuta, Isao

IPC分类号： H01R4/70 ,  H01R23/68

CPC分类号： H05K3/326 ,  H01R4/58 ,  H01R12/52 ,  H01R12/82 ,  H05K3/306 ,  H05K3/4092 ,  H05K2201/0308 ,  H05K2201/0397 ,  H05K2201/1059

公开(公告)号：EP0184412A2

公开(公告)日：1986-06-11

申请号：EP85308745.0

申请日：1985-12-02

申请人： HITACHI, LTD.

发明人： Ando, Hisashi ,  Minemura, Tetsuro ,  Ikuta, Isao ,  Katou, Yosimi ,  Nakamura, Mituo

IPC分类号： C22C5/06 ,  C22C30/06 ,  G11B7/24

CPC分类号： C22C30/06 ,  C22C5/06 ,  G11B7/00454 ,  G11B7/243 ,  G11B2007/24304 ,  G11B2007/24308 ,  Y10S430/146 ,  Y10S430/165

摘要： An alloy having variable spectral reflectance having a composition which essentially consists of Ag, 30 to 46 wt% of Zn and 0.1 to 15 wt% in total of at least one element selected from elements of groups la, IIa, IVa, Va, Via, Vlla, VIII, Ib to Vb and rare earth elements, the alloy being able to have different crystal structures, one of which is obtained when it is held in solid state at a first temperature above the room temperature, another of which is obtained when the same is held in the solid state at a second temperature lower than said first temperature. Disclosed also is an information recording medium made of the alloy. The alloy exhibits a reversible change in color or spectral reflectance as a result of change between two crystal phases, so that the information recording medium produced from this alloy can be used effectively as the medium for recording, regeneration and erasion of the informations.

公开(公告)号：EP0784316B1

公开(公告)日：2002-11-27

申请号：EP97104514.1

申请日：1989-06-19

申请人： Hitachi, Ltd.

发明人： Maeda, Yoshihito ,  Ikuta, Isao ,  Andoh, Hisashi ,  Nagai, Masaichi ,  Katoh, Yoshimi ,  Sato, Yoshio ,  Tsuboi, Nobuyoshi ,  Minemura, Hiroyuki

IPC分类号： G11B7/24

CPC分类号： G11B7/257 ,  G11B7/00454 ,  G11B7/0052 ,  G11B7/00557 ,  G11B7/24 ,  G11B7/243 ,  G11B7/2531 ,  G11B7/258 ,  G11B7/2585 ,  G11B7/2595 ,  G11B2007/24304 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316 ,  Y10S430/146

公开(公告)号：EP0527551A1

公开(公告)日：1993-02-17

申请号：EP92305029.8

申请日：1992-06-02

申请人： HITACHI, LTD.

发明人： Maeda, Yoshihito ,  Ikuta, Isao ,  Nagai, Masaichi ,  Kato, Yoshimi ,  Andoh, Hisashi ,  Tsukamoto, Nobuo

IPC分类号： G11B7/00 ,  G11B7/24 ,  G11C13/04

CPC分类号： G11B7/00557

摘要： High density optical information recording even at room temperature is achieved by control of the diameter of crystalline portions exhibiting quantum size effects of fine semiconductor particles (13) distributed in a dielectric matrix (14), using the non-crystalline to crystalline phase transition of the fine particles. The quantum size effects mean that the optical properties of the medium depend on the diameter of the crystalline portions. Various methods of recording, reproducing and erasing information using this optical recording medium are possible. The invention is applicable to other optical devices.

摘要翻译： 高密度光信息即使在室温下记录由参展分布在介电基质（14）的半导体微粒（13）的量子晶粒尺寸效应，使用非结晶结晶部分的直径的控制来实现成结晶的相变 细颗粒。 的量子晶粒尺寸效应的意思是做的介质的光学性质取决于晶态部分的直径。 记录，重现和使用该光学记录介质擦除信息的各种方法都是可能的。 本发明也适用于其他的光学装置。

公开(公告)号：EP0286406A3

公开(公告)日：1990-07-18

申请号：EP88303110.6

申请日：1988-04-07

申请人： HITACHI, LTD.

发明人： Maeda, Yoshihito ,  Kaneko, Toshiki ,  Nagai, Masaichi ,  Andoh, Hisashi ,  Katou, Yoshimi ,  Ikuta, Isao ,  Watanabe, Ryuji

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

摘要： An optical recording medium comprises a recording layer (1) capable of reversibly undergoing a phase change between a crystalline state and an amorphous state by irradiation of an electromagnetic energy. The crystalline state of the recording layer is composed of a single phase of substantially a three-component compound or a higher multi-component compound. This medium can provide high speed recording and high speed erasing.

公开(公告)号：EP0286406A2

公开(公告)日：1988-10-12

申请号：EP88303110.6

申请日：1988-04-07

申请人： HITACHI, LTD.

发明人： Maeda, Yoshihito ,  Kaneko, Toshiki ,  Nagai, Masaichi ,  Andoh, Hisashi ,  Katou, Yoshimi ,  Ikuta, Isao ,  Watanabe, Ryuji

IPC分类号： G11B7/24

CPC分类号： G11B7/243 ,  G11B2007/24308 ,  G11B2007/2431 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

摘要： An optical recording medium comprises a recording layer (1) capable of reversibly undergoing a phase change between a crystalline state and an amorphous state by irradiation of an electromagnetic energy. The crystalline state of the recording layer is composed of a single phase of substantially a three-component compound or a higher multi-component compound. This medium can provide high speed recording and high speed erasing.

摘要翻译： 一种光学记录介质包括记录层（1），该记录层能够通过照射电磁能而可逆地经历晶态和非晶态之间的相变。 记录层的结晶状态由基本上三组分化合物或更高级多组分化合物的单相组成。 该介质可以提供高速记录和高速擦除。