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1. 发明授权

US6044044A Magneto-optical recording medium having an enlarged magnetic domain in the amplifier layer during read-out 失效
标题翻译：在读出期间放大器层中具有放大的磁畴的磁光记录介质
公开(公告)号：US6044044A
公开(公告)日：2000-03-28
申请号：US106089
申请日：1998-06-29
申请人： Shinji Miyazaki , Hiroyasu Inoue , Jiro Yoshinari
发明人： Shinji Miyazaki , Hiroyasu Inoue , Jiro Yoshinari
IPC分类号： G11B11/10 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10515 , G11B11/10584 , G11B11/10586
摘要： A magneto-optical recording medium comprises a substrate, and a magnetic multilayer 4 on a surface side thereof. The magnetic multilayer comprises an amplifying layer A.sub.1 and a recording layer R.sub.2 which are laminated together and are each a magnetic layer. A nonmagnetic intermediate layer I.sub.12 is interleaved between the amplifying layer A.sub.1 and the recording layer R.sub.2 to couple them magnetostatically. The nonmagnetic intermediate layer I.sub.12 is made up of a metal oxide and has a thickness of 2 to 30 nm. The magnetic field intensity needed for magnetic field modulation reading or light modulation reading can be lowered.
摘要翻译：磁光记录介质包括基板和表面侧上的磁性多层体4。磁性层叠体包括层压在一起并分别为磁性层的放大层A1和记录层R2。非磁性中间层I12在放大层A1和记录层R2之间进行交织，使其静磁耦合。非磁性中间层I12由金属氧化物构成，厚度为2〜30nm。可以降低磁场调制读取或光调制读取所需的磁场强度。

2. 发明授权

US5963512A Recording/reproducing method of magneto-optical recording medium and drive system for magneto-optical recording medium 失效
标题翻译：磁光记录介质的记录/再现方法和用于磁光记录介质的驱动系统
公开(公告)号：US5963512A
公开(公告)日：1999-10-05
申请号：US93096
申请日：1998-06-08
申请人： Hiroyasu Inoue , Shinji Miyazaki , Jiro Yoshinari
发明人： Hiroyasu Inoue , Shinji Miyazaki , Jiro Yoshinari
IPC分类号： G11B11/10 , G11B5/00 , G11B11/105 , G11B11/00
CPC分类号： G11B11/10515 , G11B11/10508 , G11B11/10517 , G11B11/10586 , G11B11/10595 , G11B5/00
摘要： In the present invention, data transmission rate is increased in the recording of the magneto-optical recording media in which the reproduction is accomplished by applying a modulated magnetic field in a scheme of "copying of the recorded magnetic domain.fwdarw.enlargement of the copied magnetic domain.fwdarw.reproduction of the copied magnetic domain .fwdarw.size reduction and disappearance of the copied magnetic domain". The recording/reproducing method of the present invention is adapted for use with a magneto-optical recording medium having a magnetic lamination comprising a recording layer and an amplification layer wherein recording is accomplished by applying a modulated recording magnetic field, and reproduction is accomplished by applying 1 cycle of the modulated magnetic field (reproduction magnetic field+erase magnetic field) per 1 record mark (1 bit). In the recording/reproducing method of the present invention, the recording and the reproduction are conducted such that:V.sub.R /V.sub.P >1when V.sub.R is linear velocity of the magneto-optical recording medium in relation to said recording magnetic field, and V.sub.P is linear velocity of the magneto-optical recording medium in relation to modulated magnetic field.
摘要翻译：在本发明中，通过在“复制所记录的磁畴的复制磁场 - 扩大复制的磁场”的方案中应用调制的磁场来实现再现的磁光记录介质的记录中的数据传输速率增加复制磁畴的域 - >复制 - 复制磁畴的尺寸减小和消失。本发明的记录/再现方法适用于具有包括记录层和放大层的磁性层叠的磁光记录介质，其中通过施加调制记录磁场来实现记录，并且通过应用每1个记录标记（1位）的调制磁场（再现磁场+擦除磁场）的1个周期。在本发明的记录/再现方法中，进行记录和再现，使得当VR是与磁记录介质相对于所述记录磁场的线速度时，VR / VP> 1，并且VP是线速度相对于调制磁场的磁光记录介质。

3. 发明授权

US6017620A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US6017620A
公开(公告)日：2000-01-25
申请号：US055961
申请日：1998-04-07
申请人： Jiro Yoshinari , Shinji Miyazaki , Hiroyasu Inoue
发明人： Jiro Yoshinari , Shinji Miyazaki , Hiroyasu Inoue
IPC分类号： G11B11/105 , B05D3/04
CPC分类号： G11B11/10586 , G11B11/10521 , G11B11/10584 , Y10S428/90
摘要： The invention is directed at a magneto-optical recording medium which is directly overwritable by light intensity modulation, does not require an initializing magnet, and has on the surface side of a substrate four magnetic layers, a memory layer M.sub.1, a writing layer W.sub.2, a switching layer S.sub.3, and an initializing layer I.sub.4. The magnetic layers each contain a rare earth element and a transition element, have perpendicular magnetic anisotropy at room temperature, and satisfy the relationships:Tc.sub.I4 >Tc.sub.W2 >Tc.sub.M1 and Tc.sub.I4 >Tc.sub.W2 >Tc.sub.S3wherein Tc.sub.M1, Tc.sub.W2, Tc.sub.S3 and Tc.sub.I4 are the Curie temperatures of M.sub.1, W.sub.2, S.sub.3 and I.sub.4, respectively. Writing layer W.sub.2 is composed mainly of dysprosium, iron and cobalt, contains from 29-35 atomic percent of rare earth elements, and has an atomic ratio Fe/(Fe+Co) of from 0.40 to 0.58. This medium has an improved CNR, minimizes deterioration in the CNR with repeated overwriting, enhances storage reliability, and has an increased output.
摘要翻译：本发明涉及一种通过光强度调制直接覆盖的磁光记录介质，不需要初始化磁体，并且在基板的表面侧上具有四个磁性层，存储层M1，书写层W2，开关层S3和初始化层I4。磁性层各自含有稀土元素和过渡元素，在室温下具有垂直的磁各向异性，并且满足TcI4> TcW2> TcM1和TcI4> TcW2> TcS3的关系，其中TcM1，TcW2，TcS3和TcI4为居里温度分别为M1，W2，S3和I4。写作层W2主要由镝，铁和钴组成，含有29-35原子％的稀土元素，原子比Fe /（Fe + Co）为0.40〜0.58。该介质具有改进的CNR，可以最大程度地减少CNR的恶化，反复重写，提高存储可靠性，并增加输出。

4. 发明授权

US06120921A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US06120921A
公开(公告)日：2000-09-19
申请号：US55874
申请日：1998-04-07
申请人： Jiro Yoshinari , Shinji Miyazaki , Hiroyasu Inoue
发明人： Jiro Yoshinari , Shinji Miyazaki , Hiroyasu Inoue
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10586 , G11B11/10584 , G11B11/10515 , Y10S428/90
摘要： The magneto-optical recording medium of the present invention has a triple-layer magnetic laminate on the surface side of the substrate, and the magnetic laminate comprises an amplification layer A.sub.1, an exchange coupling control layer C.sub.12 and a recording layer R.sub.2 formed in this order. In the recording of the medium, magnetic domain is formed in the recording layer R.sub.2 and, and in the reproduction of the medium, the magnetic domain in R.sub.2 is copied to A.sub.1 to form a copied magnetic domain simultaneously with the enlarging of the thus formed copied magnetic domain in A.sub.1 by irradiation of a laser beam and application of a reproduction magnetic field. In the present invention, the amplification layer A.sub.1 does not have a compensation temperature higher than room temperature. Curie temperature Tc.sub.A1 of the amplification layer A.sub.1, Curie temperature Tc.sub.C12 of the exchange coupling control layer C.sub.12, and Curie temperature Tc.sub.S12 of the switching layer S.sub.12 are either Tc.sub.A1
摘要翻译：本发明的磁光记录介质在基板的表面侧具有三层磁性层压体，磁性层压体包括放大层A1，交换耦合控制层C12和按此顺序形成的记录层R2 。在介质的记录中，在记录层R2中形成磁畴，并且在介质的再现中，将R2中的磁畴复制到A1，以形成复制的磁畴，同时扩大由此形成的复制通过激光束的照射和应用再现磁场的A1中的磁畴。在本发明中，放大层A1的补偿温度不高于室温。放大层A1的居里温度TcA1，交换耦合控制层C12的居里温度TcC12和开关层S12的居里温度TcS12为TcA1

5. 发明授权

US6086993A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US6086993A
公开(公告)日：2000-07-11
申请号：US67258
申请日：1998-05-04
申请人： Jiro Yoshinari , Shinji Miyazaki , Hiroyasu Inoue
发明人： Jiro Yoshinari , Shinji Miyazaki , Hiroyasu Inoue
IPC分类号： G11B11/10 , G11B11/105 , B32B15/01 , B32B15/18 , G11B5/66
CPC分类号： G11B11/10591 , G11B11/10521 , Y10T428/265
摘要： A magneto-optical recording medium capable of direct overwriting in a light intensity modulation mode comprises a magnetic multilayer structure comprising, in order form an surface side thereof, a readout layer R.sub.01, a memory layer M.sub.1, an exchange force control layer C.sub.12 and a recording layer W.sub.2, four layers in all. The magnetic multilayer structure satisfies TC.sub.W2 >Tc.sub.M1, t.sub.R01 /(t.sub.R01 +t.sub.M1)=0.3 to 0.6, and t.sub.R01 +t.sub.M1 =20 to 40 nm where Tc.sub.M1 is a Curie temperature of M.sub.1, Tc.sub.W2 is a Curie temperature of W.sub.2, t.sub.R01 is a thickness of R.sub.01, and t.sub.M1 is a thickness of M.sub.1. R.sub.01 contains Gd, Fe, and Co as main components with the proviso that Gd is contained in an amount of 23 to 27 at %, M.sub.1 contains Tb, Fe, and Co as main components with the proviso that Tb is contained in an amount of 21 to 25 at %, and C.sub.12 contains Gd, Fe, and Co as main components with the proviso that Gd is contained in an amount of 23 to 32 at %, and has a thickness of 30 nm or below.
摘要翻译：能够以光强度调制模式直接重写的磁光记录介质包括磁性多层结构，其顺序形成其表面侧，读出层R01，存储层M1，交换力控制层C12和记录层W2，四层。磁性多层结构满足TCW2> TcM1，tR01 /（tR01 + tM1）= 0.3〜0.6，tR01 + tM1 = 20〜40nm，其中TcM1为居里温度为M1，TcW2为居里温度W2，tR01为 R01的厚度，tM1的厚度为M1。 R01含有Gd，Fe和Co作为主要成分，条件是Gd含量为23〜27原子％，M1含有Tb，Fe和Co作为主要成分，条件是Tb含量为 21〜25原子％，C12含有Gd，Fe，Co作为主要成分，条件是Gd含量为23〜32原子％，厚度为30nm以下。

6. 发明授权

US6031793A Magneto-optical recording medium with a layer to enlarge magnetic domains 失效
标题翻译：具有放大磁畴的层的磁光记录介质
公开(公告)号：US6031793A
公开(公告)日：2000-02-29
申请号：US58292
申请日：1998-04-10
申请人： Jiro Yoshinari , Shinji Miyazaki , Hiroyasu Inoue
发明人： Jiro Yoshinari , Shinji Miyazaki , Hiroyasu Inoue
IPC分类号： G11B11/10 , G11B11/105
CPC分类号： G11B11/10515 , G11B11/10586
摘要： In reading a magneto-optical recording medium comprising a substrate and a magnetic multilayer on a surface of the substrate, which multilayer comprises, in order from the surface of the substrate, an amplifying layer A.sub.1, a control layer C.sub.2, and a recording layer R.sub.3 with a magnetic domain formed therein, the medium is first irradiated with a laser beam while a reading magnetic field is applied thereto in one direction. With the resulting temperature increase, the magnetic domain in R.sub.3 is successively copied from C.sub.2 to A.sub.1 to form copied magnetic domains, which are in turn enlarged by a reading magnetic field. Then, the enlarged, copied magnetic domain in A.sub.1 is read out. Thereupon, laser beam irradiation is interrupted or the power of the laser beam is decreased to thereby vanish the copied magnetic domains in A.sub.1 and C.sub.2. To carry out reading by light intensity modulation, an interface wall exchange force magnetic field between the respective magnetic layer, etc. is controlled, so that reading can take place with no application of a modulated magnetic field.
摘要翻译：在基板表面上读取包括基板和磁性多层的磁光记录介质时，该多层包括从基板的表面依次包括放大层A1，控制层C2和记录层R3 其中形成有磁畴，首先用激光束照射介质，同时在一个方向上向其施加读取磁场。随着温度的升高，R3中的磁畴依次从C2复制到A1，形成复制的磁畴，然后再通过读磁场进行放大。然后，读出A1中的放大的复制磁畴。于是，激光束照射被中断或者激光束的功率降低，从而消失A1和C2中复制的磁畴。为了通过光强度调制进行读取，控制各磁性层之间的界面壁交换力磁场，从而可以在不施加调制磁场的情况下进行读取。

7. 发明授权

US6009050A Reading method for magneto-optical recording disc, magneto-optical recording disc driving device and magneto-optical recording medium 失效
标题翻译：磁光记录盘，磁光记录盘驱动装置和磁光记录介质的读取方法
公开(公告)号：US6009050A
公开(公告)日：1999-12-28
申请号：US84381
申请日：1998-05-27
申请人： Hiroyasu Inoue , Shinji Miyazaki , Jiro Yoshinari
发明人： Hiroyasu Inoue , Shinji Miyazaki , Jiro Yoshinari
IPC分类号： G11B11/105 , G11B19/12 , G11B23/36 , G11B11/00
CPC分类号： G11B19/12 , G11B11/10515 , G11B11/10597 , G11B23/36
摘要： The invention provides a method which can be performed on the same device with application of a modulated magnetic field to read a magneto-optical recording disk through a series of processes involving "copy of recorded magnetic domains.fwdarw.enlargement of copied magnetic domains.fwdarw.reproduction of copied magnetic domains.fwdarw.size reduction and disappearance of copied magnetic domains", and to read an ordinary magneto-optical recording medium. For reading information recorded on the first magneto-optical recording disk, the first magneto-optical recording disk is irradiated with a laser beam having a first reading power, and the alternating magnetic field is then applied thereto after synchronization by which the alternating magnetic field is applied thereto at a recorded mark position. For reading information recorded on the second magneto-optical recording disk, the second magneto-optical recording disk is irradiated with a second laser beam.
摘要翻译：本发明提供了一种可以在同一设备上执行的方法，其中应用调制磁场通过一系列涉及“复制磁畴的复制 - 复制磁畴的复制 - 复制”的过程来读取磁光记录盘的复制磁畴 - >复制磁畴的尺寸减小和消失“，并读取普通的磁光记录介质。为了读取记录在第一磁光记录盘上的信息，第一磁光记录盘用具有第一读取功率的激光束照射，然后在交变磁场为在记录标记位置施加到其上。为了读取记录在第二磁光记录盘上的信息，第二磁光记录盘被第二激光束照射。

8. 发明授权

US5674637A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5674637A
公开(公告)日：1997-10-07
申请号：US360964
申请日：1994-12-21
申请人： Shinji Miyazaki , Jiro Yoshinari , Koji Kobayashi
发明人： Shinji Miyazaki , Jiro Yoshinari , Koji Kobayashi
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , Y10S428/90
摘要： A magnetic recording medium having excellent electromagnetic characteristics, still characteristics and cupping resistance, reduced rust generation and increased durability, comprises a non-magnetic substrate and a magnetic layer formed thereon by oblique deposition, the magnetic layer being composed of at least two ferromagnetic metal thin films containing Co and Ni as main components, in which the Co content of the thin film closest to the substrate is less than 70 atomic per cent and the Co content of the film farthest from the substrate is 75 atomic per cent or more.
摘要翻译：具有优异的电磁特性，静电特性和耐拔罐性，减少生锈和提高耐久性的磁记录介质包括非磁性基板和通过倾斜沉积在其上形成的磁性层，磁性层由至少两个铁磁性金属薄层含有Co和Ni作为主要成分的膜，其中最接近基底的薄膜的Co含量小于70原子％，并且离基材最远的膜的Co含量为75原子％以上。

9. 发明授权

US6042921A Optical recording medium and read/write method therefor 失效
标题翻译：光记录介质及其记录/再现方法
公开(公告)号：US6042921A
公开(公告)日：2000-03-28
申请号：US131865
申请日：1998-08-10
申请人： Jiro Yoshinari , Masanori Kosuda , Hiroshi Shingai , Shinji Miyazaki
发明人： Jiro Yoshinari , Masanori Kosuda , Hiroshi Shingai , Shinji Miyazaki
IPC分类号： G11B7/254 , G11B5/62 , G11B7/00 , G11B7/0045 , G11B7/0055 , G11B7/257 , B32B3/00
CPC分类号： G11B5/62 , Y10S428/913 , Y10S430/146 , Y10T428/21
摘要： The invention provides a phase charge type optical recording medium comprising on both sides of a recording layer dielectric layers, each containing zinc sulfide and silicon oxide as main components. The medium comprises on a substrate 2 a first dielectric layer 31, a recording layer 4, a second dielectric layer 32 and a reflective layer 5 made up of a metal. The first dielectric layer 32 comprises a dielectric lamina 1a on a substrate 2 side thereof and a dielectric lamina 1b on a recording layer 4 side thereof. The dielectric lamina 1a has a silicon oxide content of 2 to less than 40 mol %, the dielectric lamina 1b has a silicon oxide content of 40 to 100 mol %, and the second dielectric layer 32 has a silicon oxide content of 2 to 50 mol % and a thickness of 10 to 35 nm. The number of overwritable cycles can be increased.
摘要翻译：本发明提供了一种相位电荷型光学记录介质，其包括在记录层电介质层的两侧，每个记录层包含硫化锌和氧化硅作为主要成分。介质在基板2上包括由金属构成的第一介电层31，记录层4，第二电介质层32和反射层5。第一电介质层32包括在其基板2侧上的电介质层1a和在其记录层4侧上的电介质层1b。电介质层1a的氧化硅含量为2〜小于40mol％，电介质层1b的氧化硅含量为40〜100mol％，第二电介质层32的氧化硅含量为2〜50mol ％，厚度10〜35nm。可以增加可重写周期的数量。

10. 发明授权

US5558945A Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US5558945A
公开(公告)日：1996-09-24
申请号：US360965
申请日：1994-12-21
申请人： Shinji Miyazaki , Jiro Yoshinari , Koji Kobayashi
发明人： Shinji Miyazaki , Jiro Yoshinari , Koji Kobayashi
IPC分类号： G11B5/66
CPC分类号： G11B5/66 , Y10S428/90 , Y10S428/928 , Y10T428/12465 , Y10T428/1266 , Y10T428/12861 , Y10T428/24942 , Y10T428/24975
摘要： A magnetic recording medium having excellent electromagnetic characteristics, still characteristics and cupping, decreased rust generation and high durability, includes a non-magnetic substrate and a magnetic layer formed thereon by oblique deposition, the magnetic layer being composed of at least two ferromagnetic thin films, in which the ferromagnetic thin film of the lowest layer has a saturation magnetization of 300 emu/cc or less, a coercive force of 1000 Oe or less and a thickness of 300 to 1500 .ANG., the ferromagnetic thin layer of the uppermost layer has a saturation magnetization of 300 emu/cc or more, a coercive force of 1000 Oe or more and a thickness of 400 to 1500 .ANG., an average value (.theta.) of angles between growing directions of columnar crystalline particles constituting the ferromagnetic thin film of the lowest layer and a principal plane of the substrate ranges from 50 to 70 degrees, and an average value (.theta.) of angles between growing directions of columnar crystalline particles constituting the ferromagnetic thin film of the uppermost layer and the principal plane of the substrate ranges from 30 to 50 degrees.
摘要翻译：具有优异的电磁特性，静电特性和拔罐的磁记录介质，减少生锈和高耐久性，包括非磁性基板和通过倾斜沉积在其上形成的磁性层，该磁性层由至少两个铁磁性薄膜组成，其中最低层的铁磁性薄膜具有300emu / cc以下的饱和磁化强度，1000Oe以下的矫顽力和300〜1500的厚度，最上层的铁磁性薄层具有饱和度 300emu / cc以上的磁化，1000Oe以上的矫顽力和400〜1500的厚度ANGSTROM，构成最低层的铁磁性薄膜的柱状结晶粒子的生长方向的平均值（θ）并且衬底的主平面的范围为50至70度，并且生长方向之间的角度的平均值（θ）构成最上层的铁磁性薄膜的柱状结晶粒子和基板的主面的范围为30〜50度。

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