公开(公告)号：US5487046A

公开(公告)日：1996-01-23

申请号：US282212

申请日：1994-07-28

申请人： Atsuyuki Watada ,  Toshiaki Tokita ,  Motoharu Tanaka

发明人： Atsuyuki Watada ,  Toshiaki Tokita ,  Motoharu Tanaka

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B13/04

CPC分类号： G11B11/10582 ,  G11B11/10506 ,  G11B11/10515 ,  G11B11/10521

摘要： A magneto-optical recording method for recording information in an overwrite mode in a magneto-optical recording medium by the application of a laser beam is disclosed. The magneto-optical recording medium includes a substrate, and at least two magnetic recording layers overlaid thereon, with an exchange force working at least between the two magnetic recording layers, and the Curie temperature of each of the two magnetic recording layers being substantially the same. The magneto-optical recording method includes the step of conducting overwriting information by changing the power of the laser beam to be applied to at least two different levels, one at which the magnetic recording layers are heated to a temperature near or higher than the Curie temperature, and the other at which the magnetic recording layers are heated to a temperature lower than the Curie temperature, while a magnetic field is applied to the magneto-optical recording medium in one direction, in accordance with signals to be recorded in the magneto-optical recording medium, and this recording method requires only one initialization by the application of the magnetic field, but does not require any further initialization thereafter.

摘要翻译： 公开了一种用于通过施加激光束在磁光记录介质中以重写模式记录信息的磁光记录方法。 磁光记录介质包括至少两个覆盖在其上的磁记录层，至少两个磁记录层之间具有至少两个磁记录层之间的交换力，并且两个磁记录层中的每一个的居里温度基本相同 。 磁光记录方法包括通过将要施加的激光束的功率改变为至少两个不同级别来进行重写信息的步骤，一个磁记录层被加热到接近或高于居里温度的温度 ，另一个磁记录层被加热到低于居里温度的温度，同时根据要记录在磁光学中的信号在一个方向上对磁光记录介质施加磁场 记录介质，并且该记录方法仅需要通过施加磁场进行一次初始化，而不需要其后进一步的初始化。

公开(公告)号：US5323366A

公开(公告)日：1994-06-21

申请号：US24845

申请日：1993-02-26

申请人： Atsuyuki Watada ,  Toshiaki Tokita ,  Motoharu Tanaka

发明人： Atsuyuki Watada ,  Toshiaki Tokita ,  Motoharu Tanaka

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B7/00

CPC分类号： G11B11/10506 ,  G11B11/10521 ,  G11B11/10595

摘要： A magneto-optical recording method is disclosed, by which a magnetic recording pattern is formed in an overwriting mode, utilizing demagnetizing field, by directing a light beam onto a perpendicularly magnetized film layer of a magneto-optical recording medium, wherein when recording is being carried out by the application of a light beam onto the perpendicularly magnetized film layer, on switching the direction of magnetization for recording from downward to upward or from upward to downward, when required, with respect to the surface of the magnetized film layer, a light beam application mode for a light-beam applied portion in the magnetized film layer to which the light beam has been applied, and a light beam application mode in a portion in the magnetized film layer immediately after the light-beam applied portion to which the light beam is yet to be applied, are changed.

摘要翻译： 公开了一种磁光记录方法，通过该磁光记录方法，通过将光束引导到磁光记录介质的垂直磁化的膜层上，以覆盖模式形成磁记录图案，利用去磁场，其中当记录为 通过将光束施加到垂直磁化膜层上，在需要时相对于磁化膜层的表面将从记录磁化方向向下或从上向下切换为光 在施加有光束的磁化膜层中的光束施加部分的光束施加模式以及紧接在光束施加部分之后的磁化膜层的部分中的光束施加模式，光束施加部分 光束尚未被应用，被改变。

公开(公告)号：US4670323A

公开(公告)日：1987-06-02

申请号：US674224

申请日：1984-11-23

申请人： Hitoshi Nakamura ,  Hazime Machida ,  Motoharu Tanaka ,  Atsuyuki Watada ,  Fumiya Omi ,  Nobuyuki Koinuma

发明人： Hitoshi Nakamura ,  Hazime Machida ,  Motoharu Tanaka ,  Atsuyuki Watada ,  Fumiya Omi ,  Nobuyuki Koinuma

IPC分类号： G11B5/706 ,  G11B11/105 ,  H01F10/20 ,  G11B7/24

CPC分类号： G11B11/10591 ,  G11B11/10586 ,  G11B5/70678 ,  H01F10/205 ,  Y10S428/90 ,  Y10T428/24612 ,  Y10T428/2495 ,  Y10T428/24959 ,  Y10T428/24967 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/31678

摘要： The present invention provides a metal oxide magnetic substance represented by the general formula I:MeO.n[Ga.sub.X M.sub.Y.sup.I Fe.sub.2-X-(m/3)Y O.sub.3 ](wherein, Me is at least one member of Ba, Sr and Pb. M.sup.I is at least one member of Zn, Sc, In, Cr, Ir, Ru, Rh, Ti, Ta, Sn and Ge, 5.ltoreq.n.ltoreq.6, O

摘要翻译： 本发明提供由通式I表示的金属氧化物磁性物质：MeO.n [GaXMYIFe2-X-（m / 3）YO3]（其中，Me为Ba，Sr和Pb中的至少一种，MI为 Zn，Sc，In，Cr，Ir，Ru，Rh，Ti，Ta，Sn和Ge中的至少一个成员，5

公开(公告)号：US06975663B2

公开(公告)日：2005-12-13

申请号：US10085204

申请日：2002-02-26

申请人： Takuro Sekiya ,  Akira Sakurai ,  Masayoshi Katoh ,  Teruyuki Furuta ,  Kazuya Miyagaki ,  Ken Kanai ,  Atsuyuki Watada ,  Shunichi Sato ,  Koei Suzuki ,  Satoru Sugawara ,  Shinji Satoh ,  Shuuichi Hikichi ,  Naoto Jikutani ,  Takashi Takahashi ,  Akihiro Itoh

发明人： Takuro Sekiya ,  Akira Sakurai ,  Masayoshi Katoh ,  Teruyuki Furuta ,  Kazuya Miyagaki ,  Ken Kanai ,  Atsuyuki Watada ,  Shunichi Sato ,  Koei Suzuki ,  Satoru Sugawara ,  Shinji Satoh ,  Shuuichi Hikichi ,  Naoto Jikutani ,  Takashi Takahashi ,  Akihiro Itoh

IPC分类号： H01S5/022 ,  H01S5/183 ,  H01S5/323 ,  H01S5/42 ,  H01S3/08 ,  H01S5/00

CPC分类号： H01S5/18361 ,  H01L2224/48091 ,  H01S5/0071 ,  H01S5/02284 ,  H01S5/0262 ,  H01S5/0264 ,  H01S5/0683 ,  H01S5/18313 ,  H01S5/18358 ,  H01S5/32366 ,  H01S5/423 ,  H01S2301/173 ,  H01L2924/00014

摘要： A surface-emission laser diode includes a distributed Bragg reflector tuned to wavelength of 1.1 μm or longer, wherein the distributed Bragg reflector includes an alternate repetition of a low-refractive index layer and a high-refractive index layer, with a heterospike buffer layer having an intermediate refractive index interposed therebetween with a thickness in the range of 5-50 nm.

摘要翻译： 表面发射激光二极管包括调谐到波长为1.1μm或更长的分布布拉格反射器，其中分布布拉格反射器包括低折射率层和高折射率层的交替重复，其中异相缓冲层具有 插入其间的中间折射率，厚度在5-50nm的范围内。

公开(公告)号：US5736265A

公开(公告)日：1998-04-07

申请号：US263947

申请日：1994-06-22

申请人： Motoharu Tanaka ,  Atsuyuki Watada ,  Toshiaki Tokita

发明人： Motoharu Tanaka ,  Atsuyuki Watada ,  Toshiaki Tokita

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B5/66

CPC分类号： G11B11/10586 ,  Y10S428/90

摘要： A magneto-optical recording medium includes a recording layer which is composed of A memory layer comprising a ferromagnetic layer with perpendicular anisotropy, and an auxiliary layer comprising antiferromagnetic layer which exhibits an antimagnetic phase at room temperature, and a ferromagnetic phase at temperatures near the Curie temperature of the memory layer which is higher than room temperature, because of the occurrence of magnetic phase transformation, with the memory layer and the auxiliary layer being overlaid. A magneto-optical recording method using this magneto-optical recording medium is described.

摘要翻译： 磁光记录介质包括由包括具有垂直各向异性的铁磁层的A存储层和包括在室温下呈现抗磁相的反铁磁层的辅助层和在居里温度附近的铁磁相构成的记录层 存储层的温度高于室温，由于存在磁记录层和辅助层的重叠而发生磁相变。 描述使用该磁光记录介质的磁光记录方法。

公开(公告)号：US5430696A

公开(公告)日：1995-07-04

申请号：US235116

申请日：1994-04-28

申请人： Toshiaki Tokita ,  Motoharu Tanaka ,  Atsuyuki Watada

发明人： Toshiaki Tokita ,  Motoharu Tanaka ,  Atsuyuki Watada

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B13/04

CPC分类号： G11B11/1053 ,  G11B11/10506 ,  G11B11/10521

摘要： A magneto-optical recording method capable of overwriting on a magneto-optical recording medium is disclosed. The magneto-optical recording medium includes a recording layer comprising a single magnetic layer with magnetic anisotropy and the magneto-optical recording methods includes the step of applying a laser beam with a light power level P.sub.1 to the recording layer when a binary coded signal "1" is written therein under a fixed external magnetic field; and the steps of applying a laser beam with a light power level Poh to the recording layer and successively applying a laser beam with a light power level Pol to said recording layer when a binary coded signal "0" is written therein under a fixed external magnetic field, wherein Pol, P.sub.1 and Poh are in the relationship of O

摘要翻译： 公开了能够在磁光记录介质上重写的磁光记录方法。 磁光记录介质包括具有磁各向异性的单个磁性层的记录层，并且磁光记录方法包括在二进制编码信号“1”处将具有光功率电平P1的激光束施加到记录层的步骤 “在固定的外部磁场下写入; 以及当将二进制编码信号“0”写入固定的外部磁场时，将具有光功率电平Poh的激光束施加到记录层并连续地将具有光功率电平Pol的激光束施加到所述记录层的步骤 其中Pol，P1和Poh处于O

公开(公告)号：US5337293A

公开(公告)日：1994-08-09

申请号：US825015

申请日：1992-01-24

申请人： Toshiaki Tokita ,  Motoharu Tanaka ,  Atsuyuki Watada

发明人： Toshiaki Tokita ,  Motoharu Tanaka ,  Atsuyuki Watada

IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B11/12

CPC分类号： G11B11/1053 ,  G11B11/10506 ,  G11B11/10521

摘要： A magneto-optical recording method capable of overwriting on a magneto-optical recording medium is disclosed. The magneto-optical recording medium includes a recording layer comprising a single magnetic layer with magnetic anisotropy and the magneto-optical recording methods includes the step of applying a laser beam with a light power level P.sub.1 to the recording layer when a binary coded signal "1" is written therein under a fixed external magnetic field; and the steps of applying a laser beam with a light power level Poh to the recording layer and successively applying a laser beam with a light power level Pol to said recording layer when a binary coded signal "0" is written therein under a fixed external magnetic field, wherein Pol, P.sub.1 and Poh are in the relationship of 0

摘要翻译： 公开了能够在磁光记录介质上重写的磁光记录方法。 磁光记录介质包括具有磁各向异性的单个磁性层的记录层，并且磁光记录方法包括在二进制编码信号“1”处将具有光功率电平P1的激光束施加到记录层的步骤 “在固定的外部磁场下写入; 以及当将二进制编码信号“0”写入固定的外部磁场时，将具有光功率电平Poh的激光束施加到记录层并连续地将具有光功率电平Pol的激光束施加到所述记录层的步骤 其中Pol，P1和Poh处于0

公开(公告)号：US4797331A

公开(公告)日：1989-01-10

申请号：US928378

申请日：1986-11-10

申请人： Atsuyuki Watada ,  Fumiya Ohmi

发明人： Atsuyuki Watada ,  Fumiya Ohmi

IPC分类号： H01F10/20 ,  C01G49/00 ,  C04B35/26 ,  G03G9/087 ,  G11B5/64 ,  G11B11/10 ,  G11B11/105 ,  G11B7/24

CPC分类号： G11B5/64 ,  C04B35/2633 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08788 ,  G11B11/10586 ,  G11B11/10591 ,  Y10S428/90

摘要： A magneto-optical recording material is disclosed, which consists of magnetoplumbite type ferrite containing barium in which part of Ba is replaced by La and part of Fe is replaced by Co.

摘要翻译： 公开了一种磁光记录材料，其由包含钡的磁铅矿型铁氧体组成，其中Ba的一部分被La代替，并且部分Fe被Co替代

公开(公告)号：US4788095A

公开(公告)日：1988-11-29

申请号：US97301

申请日：1987-09-14

申请人： Hazime Machida ,  Hitoshi Nakamura ,  Fumiya Omi ,  Atsuyuki Watada ,  Yuziro Kaneko

发明人： Hazime Machida ,  Hitoshi Nakamura ,  Fumiya Omi ,  Atsuyuki Watada ,  Yuziro Kaneko

IPC分类号： C01B19/00 ,  C01G51/00 ,  C04B35/26 ,  G11B5/64 ,  G11B11/105 ,  H01F10/20 ,  G11B7/24

CPC分类号： B82Y30/00 ,  C01B19/002 ,  C01G51/006 ,  C04B35/2633 ,  C04B35/2683 ,  G11B11/10586 ,  G11B11/10591 ,  G11B5/64 ,  H01F10/20 ,  H01F10/265 ,  C01P2002/52 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2004/84 ,  C01P2006/42 ,  Y10S428/90 ,  Y10T428/24612 ,  Y10T428/2495 ,  Y10T428/24959 ,  Y10T428/24967 ,  Y10T428/26 ,  Y10T428/265 ,  Y10T428/31678

摘要： This invention provides a metal oxide magnetic substance represented by the following general formula:MeO.n[Ma.sub.x Mb.sub.y Co.sub.z Fe.sub.2-(x+m/3y+2/3z) O.sub.3 ][wherein, Me, Ma, Mb, x, y, z, m and n are each as mentioned below.Me: at least one divalent metal selected from the group consisting of Ba, Sr and Pb,Ma: at least one trivalent metal selected from the group consisting of Ga, Al, Cr and Rh,Mb: at least one divalent to tetravalent metal selected from the group consisting of Zn (divalent); Ni, In, Sc, Cr, Sb, Bi, Y and Sm (trivalent), and Mo, Ti, Sn, Ta, V, Mn, Ir, Hf, Pd, Nb, Re, Pt, Os, Zr, Tc, Rh, Ge, Ru, W, Te, Pr and Ce (tetravalent) wherein, the metal represented by Mb is not the same as that represented by Me or Ma)x: 0

摘要翻译： 本发明提供由以下通式表示的金属氧化物磁性物质：MeO.n [MaxMbyCozFe2-（x + m / 3y + 2 / 3z）O3] [其中，Me，Ma，Mb，x，y，z，m 和n各自如下所述。 Me：选自Ba，Sr和Pb中的至少一种二价金属，Ma：选自Ga，Al，Cr和Rh中的至少一种三价金属，Mb：选择至少一种二价至四价金属 由Zn（二价）组成的组; Ni，In，Sc，Cr，Sb，Bi，Y和Sm（三价），Mo，Ti，Sn，Ta，V，Mn，Ir，Hf，Pd，Nb，Re，Pt，Os， Rh，Ge，Ru，W，Te，Pr和Ce（四价）其中，Mb表示的金属与Me或Ma表示的金属不同）x：0

公开(公告)号：US4690861A

公开(公告)日：1987-09-01

申请号：US832373

申请日：1986-02-24

申请人： Hitoshi Nakamura ,  Yujiro Kaneko ,  Yasuo Sawada ,  Hajime Machida ,  Fumiya Omi ,  Atsuyuki Watada

发明人： Hitoshi Nakamura ,  Yujiro Kaneko ,  Yasuo Sawada ,  Hajime Machida ,  Fumiya Omi ,  Atsuyuki Watada

IPC分类号： G11B11/10 ,  C09D5/23 ,  G11B11/105 ,  H01F10/20 ,  G11B9/00

CPC分类号： H01F10/205 ,  G11B11/10586 ,  G11B11/10591 ,  Y10S428/90 ,  Y10T428/12549 ,  Y10T428/12576 ,  Y10T428/12611 ,  Y10T428/12743 ,  Y10T428/12847 ,  Y10T428/12875 ,  Y10T428/12889 ,  Y10T428/12896 ,  Y10T428/12986 ,  Y10T428/24942 ,  Y10T428/265

摘要： A magneto optical recording medium comprising laminating a reflective layer, a dielectric undercoat layer and a hexagonal magnetoplumbite-type metal oxide magnetic layer on a substrate in order, characterized by that said magnetic layer is made an excellently C axis - orientated perpendicular magnetic film by putting the crystal misfit between said reflective layer and said dielectric undercoat layer formed thereon within .+-.30% and the crystal misfit between said dielectric undercoat layer and said hexagonal magnetoplumbite -type metal oxide magnetic layer formed thereon within .+-.30%, and thus various characteristics are widely improved.

摘要翻译： 一种磁光记录介质，包括在基板上依次层叠反射层，电介质底涂层和六角形磁铅石型金属氧化物磁性层，其特征在于，所述磁性层通过放置成优异的C轴取向的垂直磁性膜 所述反射层和形成在其之间的所述电介质底涂层之间的晶体失配在±30％以内，并且所述电介质底涂层和形成于其之间的所述六方磁铅矿型金属氧化物磁性层之间的晶体失配在+/- 30％内，因此 各种特点得到广泛的改善。