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71. 发明授权

US5985436A Magneto-optical recording medium, magneto-optical recording method, and magneto-optical recording apparatus 失效
标题翻译：磁光记录介质，磁光记录方法和磁光记录装置
公开(公告)号：US5985436A
公开(公告)日：1999-11-16
申请号：US935395
申请日：1997-09-23
申请人： Junji Hirokane , Yoshiteru Murakami , Akira Takahashi
发明人： Junji Hirokane , Yoshiteru Murakami , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10508 , G11B11/10591 , G11B11/10593 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium including at least a recording layer, and an auxiliary recording layer which achieves magnetostatic coupling with the recording layer. The auxiliary recording layer is in an in-plane magnetization state at temperatures lower than a recording temperature, and in a perpendicular magnetization state at temperatures not lower than the recording temperature. It is therefore possible to achieve a decrease in a recording magnetic field.
摘要翻译：至少包括记录层的磁光记录介质和与记录层实现静磁耦合的辅助记录层。辅助记录层在低于记录温度的温度下处于平面内磁化状态，并且在不低于记录温度的温度下处于垂直磁化状态。因此，可以实现记录磁场的减小。

72. 发明授权

US5976688A Magneto-optical recording medium and method of manufacturing the same 失效
标题翻译：磁光记录介质及其制造方法
公开(公告)号：US5976688A
公开(公告)日：1999-11-02
申请号：US912282
申请日：1997-08-15
申请人： Takeo Kawase , Masaya Ishida , Satoshi Nebashi , Satoshi Shimokawato , Toshiaki Mikoshiba , Shoji Hoshina , Hiromu Miyazawa , Atsushi Takakuwa
发明人： Takeo Kawase , Masaya Ishida , Satoshi Nebashi , Satoshi Shimokawato , Toshiaki Mikoshiba , Shoji Hoshina , Hiromu Miyazawa , Atsushi Takakuwa
IPC分类号： G11B11/105 , G11B5/66
CPC分类号： G11B11/10591 , G11B11/10582 , G11B11/10584 , G11B11/10586 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： In a magneto-optical recording medium, a first dielectric layer 12, a recording layer 13, an auxiliary recording layer 14, a second dielectric layer 15 and a reflective layer 16 are sequentially laminated on a transparent substrate 11. Recording layer 14 is formed of a rare-earth transition-metal amorphous alloy having a film thickness of about several hundreds angstroms. Auxiliary recording layer 14 is also formed of a rare-earth transition-metal amorphous alloy. However, the Curie temperature T.sub.C2 of auxiliary recording layer 14 is 10.degree. K or more higher than the Curie temperature T.sub.C1 of recording layer 13, and the film thickness of auxiliary recording layer is ultra-thin, such as, 70 .ANG. or less. Further, the squareness ratio of auxiliary recording layer 14 at the Curie temperature T.sub.C1 of recording layer 13 is 0.7 or higher. These characteristics of auxiliary recording layer 14 may be realized by selecting the composition of auxiliary recording layer 14 or by lowering the density of the layer. In addition, a transition metal, such as, Fe or Co, or a non-magnetic metal, such as, Pt, Al, Ti or Cr, or a nitride of rare-earth transition-metal amorphous alloy may be employed as the material for auxiliary recording layer 14.
摘要翻译：在磁光记录介质中，第一电介质层12，记录层13，辅助记录层14，第二电介质层15和反射层16依次层压在透明基板11上。记录层14由具有约几百埃的薄膜厚度的稀土过渡金属非晶态合金。辅助记录层14也由稀土过渡金属非晶合金形成。然而，辅助记录层14的居里温度TC2比记录层13的居里温度TC1高10°K以上，辅助记录层的膜厚超薄，例如70以下。此外，记录层13的居里温度TC1下的辅助记录层14的矩形比为0.7以上。辅助记录层14的这些特性可以通过选择辅助记录层14的组成或通过降低层的密度来实现。此外，可以使用诸如Fe或Co的过渡金属或诸如Pt，Al，Ti或Cr的非磁性金属或稀土过渡金属非晶合金的氮化物作为材料用于辅助记录层14。

73. 发明授权

US5965286A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US5965286A
公开(公告)日：1999-10-12
申请号：US794349
申请日：1997-02-03
申请人： Satoru Ohnuki , Katsusuke Shimazaki , Norio Ohta , Hideo Fujiwara , Masafumi Yoshihiro , Noriyuki Ogihara , Yukinori Yamada
发明人： Satoru Ohnuki , Katsusuke Shimazaki , Norio Ohta , Hideo Fujiwara , Masafumi Yoshihiro , Noriyuki Ogihara , Yukinori Yamada
IPC分类号： G11B7/26 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10593 , G11B11/10582 , G11B11/10584 , G11B11/10586 , G11B11/10589 , G11B11/10591 , G11B7/26 , Y10S428/90 , Y10T428/12465 , Y10T428/265
摘要： A magneto-optical recording medium having a thin film, with suitable thermal conductivity, laminated on a magneto-optical film having excellent durability to repeated recording, reproducing and erasing comprising one layer or a multi-layer of thin film containing at least a magneto-optical recording film and carried on a transparent substrate, a ferromagnetic reflection film having a reflectance to a reproduction beam of 70% or higher and a thermal conductivity at a normal temperature from 0.05 to 2.0 W/cm.deg laminated on the backside of the magneto-optical recording film viewed from the transparent substrate side and, optionally, a heat control layer having a thermal conductivity at a normal temperature of 0.1 to 2.0 W/cm.deg laminated on the backside of the magneto-optical film.
摘要翻译：一种具有合适导热性的薄膜的磁光记录介质层叠在具有优异耐久性的重复记录，再现和擦除的磁光膜上，包括一层或多层薄膜，该薄膜至少含有磁 - 光学记录膜并承载在透明基板上，具有反射率为70％或更高的再现光束的铁磁反射膜以及层压在磁体背面上的常规温度为0.05至2.0W / cm的热导率 - 从透明基板侧观察的光学记录膜，以及可选地在层叠在磁光膜的背面上的在常温下为0.1〜2.0W / cm·s的导热率的热控制层。

74. 发明授权

US5876858A Magneto-optical recording medium with magnetic film having large magnetic anisotropy 失效
标题翻译：具有磁性各向异性大的磁性膜的磁光记录媒体
公开(公告)号：US5876858A
公开(公告)日：1999-03-02
申请号：US709640
申请日：1996-09-09
申请人： Tomonori Ikeya , Tsutomu Tanaka , Haruhiko Izumi
发明人： Tomonori Ikeya , Tsutomu Tanaka , Haruhiko Izumi
IPC分类号： G11B11/10 , G11B7/257 , G11B11/105 , H01F1/00 , G11B7/24
CPC分类号： G11B7/2578 , G11B11/10591 , G11B11/10593 , G11B2007/24306 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25715 , G11B7/2534 , G11B7/2585 , Y10S428/928 , Y10T428/12465
摘要： A magneto-optical recording medium improved in reproduction stability and carrier-to-noise ratio by enlarging the magnetic anisotropy of a magnetic film. The magneto-optical recording medium is composed of a transparent substrate, a first dielectric film laminated on the transparent substrate, a magnetic film laminated on the first dielectric film, and a second dielectric film laminated on the magnetic film. The second dielectric film is formed from a material different from a material of the first dielectric film, and has film stress different from film stress of the first dielectric film. Accordingly, the coercive force and the magnetic anisotropy of the magnetic film can be enlarged.
摘要翻译：磁光记录介质通过扩大磁性膜的磁各向异性而提高了再现稳定性和载波噪声比。磁光记录介质由透明基板，层叠在透明基板上的第一电介质膜，层叠在第一电介质膜上的磁性膜和层叠在磁性膜上的第二电介质膜构成。第二电介质膜由与第一电介质膜的材料不同的材料形成，并且具有与第一电介质膜的膜应力不同的膜应力。因此，能够扩大磁性膜的矫顽力和磁各向异性。

75. 发明授权

US5876807A Magneto-optical recording medium production method 失效
标题翻译：磁光记录介质的生产方法
公开(公告)号：US5876807A
公开(公告)日：1999-03-02
申请号：US961140
申请日：1997-10-30
申请人： Yoshihiro Muto
发明人： Yoshihiro Muto
IPC分类号： G11B11/10 , G11B11/105 , H01F1/00
CPC分类号： G11B11/10582 , G11B11/10591 , G11B11/10506 , G11B11/10521
摘要： The present invention provides a method for producing a magneto-optical recording medium capable of optical intensity modulation direct overwriting, which method enables to easily form an initialization layer having an excellent stability against the magnetization inversion during the optical intensity modulation direct overwriting.When producing a magneto-optical recording medium at least a memory layer 1 which is magnetized according to a recording signal, a recording layer 2 whose magnetization direction is temporarily changed according to a recording signal during a recording, a switch layer 3 which is temporarily demagnetized during a recording, and an initialization layer 4 whose magnetization direction is not changed during a recording; the memory layer 1 is formed by forming at least a first magnetic layer 1a having a residual magnetization Mr smaller than a saturation magnetization Ms and a second magnetic layer 1b having a ratio Mr/Ms between the residual magnetization Mr and the saturation magnetization Ms greater than that of the first magnetic layer. Moreover, when forming the second magnetic layer 1b, an external magnetic field is applied almost in the vertical direction to the film surface.
摘要翻译：本发明提供了一种制造能够进行光强度调制直接重写的磁光记录介质的方法，该方法能够在光强调制直接重写期间容易地形成对磁化反转具有优异的稳定性的初始化层。当至少存储层1产生磁光记录介质时，根据记录信号被磁化的记录层1，记录期间根据记录信号使磁化方向临时变化的记录层2，暂时退磁的开关层3 以及在记录期间磁化方向不改变的初始化层4; 存储层1通过至少形成具有小于饱和磁化强度Ms的剩余磁化强度Mr的第一磁性层1a和残余磁化强度Mr与饱和磁化强度Ms之间的Mr / Ms比率的第二磁性层1b大于第一磁性层的。此外，当形成第二磁性层1b时，几乎在与膜表面垂直的方向上施加外部磁场。

76. 发明授权

US5783300A Magnetooptical recording medium allowing overwriting with two or more magnetic layers and recording method utilizing the same 失效
标题翻译：允许使用两个或多个磁性层重写的磁光记录介质和利用该磁光记录介质的记录方法
公开(公告)号：US5783300A
公开(公告)日：1998-07-21
申请号：US613431
申请日：1996-02-29
申请人： Yoichi Osato , Hisaaki Kawade , Eiichi Fujii , Nobuhiro Kasama , Tadashi Kobayashi
发明人： Yoichi Osato , Hisaaki Kawade , Eiichi Fujii , Nobuhiro Kasama , Tadashi Kobayashi
IPC分类号： G11B11/105 , G11B5/66 , G11B5/62 , G11B5/64 , G11B11/00
CPC分类号： G11B11/10506 , G11B11/10519 , G11B11/10586 , G11B11/10591 , Y10T428/26
摘要： A magnetooptical recording medium provided with a first magnetic layer and a second magnetic layer having a higher Curie point and a lower coercive force than the first magnetic layer and being exchange coupled with the first magnetic layer satisfies the relation: ##EQU1## wherein H.sub.H is the coercive force of the first magnetic layer; H.sub.L is the coercive force of the second magnetic layer; M.sub.s is the saturation magnetization of the second magnetic layer; h is the thickness thereof; and .sigma..sub.w is the magnetic wall energy between the first and second magnetic layers.
摘要翻译：具有第一磁性层和具有比第一磁性层更高的居里点和较低的矫顽力并与第一磁性层交换耦合的第二磁性层的磁光记录介质满足以下关系：其中HH是第一磁性层的矫顽力; HL是第二磁性层的矫顽力; Ms是第二磁性层的饱和磁化强度; h是其厚度; σw是第一和第二磁性层之间的磁壁能量。

77. 发明授权

US5750274A Multilayer magnetooptic recording media 失效
标题翻译：多层磁光记录介质
公开(公告)号：US5750274A
公开(公告)日：1998-05-12
申请号：US674226
申请日：1996-06-28
申请人： Tukaram K. Hatwar , Yuan-Sheng Tyan , Charles F. Brucker
发明人： Tukaram K. Hatwar , Yuan-Sheng Tyan , Charles F. Brucker
IPC分类号： C23C14/02 , G11B11/105 , G11B5/66 , B32B5/16
CPC分类号： G11B11/10593 , C23C14/024 , G11B11/10584 , G11B11/10591 , Y10S428/90 , Y10T428/12861 , Y10T428/12875
摘要： A magnetooptic medium comprising a substrate, an amorphous seed layer and a recording multilayer deposited onto the seed layer wherein the seed layer has a thickness of greater than 18 nm but less than 200 nm and is selected to improve the coercivity, squareness, and Kerr rotation of the Kerr hysteresis loop of the recording multilayer, and the recording multilayer includes alternating layers of cobalt and platinum or cobalt and palladium or cobalt and platinum-palladium alloy.
摘要翻译：一种磁光介质，其包括沉积在种子层上的基底，非晶种子层和记录多层，其中籽晶层具有大于18nm但小于200nm的厚度，并且被选择以提高矫顽力，矩形度和克尔旋转的记录多层的克尔磁滞回线，并且记录多层包括钴和铂或钴和钯或钴和铂 - 钯合金的交替层。

78. 发明授权

US5738765A Magneto-optic memory device 失效
标题翻译：磁光存储器件
公开(公告)号：US5738765A
公开(公告)日：1998-04-14
申请号：US443760
申请日：1995-05-18
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Hideyoshi Yamaoka
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Hideyoshi Yamaoka
IPC分类号： C23C14/06 , G11B7/243 , G11B7/253 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/257 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B11/105 , C23C14/00
CPC分类号： G11B11/10591 , C23C14/0617 , C23C14/0652 , G11B11/10584 , G11B11/10586 , G11B7/243 , G11B7/257 , G11B7/258 , G11B2007/24306 , G11B2007/24308 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432 , G11B2007/24328 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25718 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/2585 , G11B7/259 , G11B7/2595 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optic memory device includes a transparent dielectric film of a non-oxygen containing nitride material deposited by sputtering on a substrate such as glass, a rare-earth/transition metal alloy recording medium deposited by sputtering on the dielectric film and a reflecting film deposited over the recording medium with or without an intervening transparent dielectric film of non-oxygen containing nitride material. This arrangement prevents the recording medium from being oxidized, and stablizes coercive force characteristics and information recording characteristics of the recording medium.
摘要翻译：磁光存储器件包括通过溅射沉积在诸如玻璃的基底上的非含氮氮化物材料的透明电介质膜，通过溅射沉积在电介质膜上的稀土/过渡金属合金记录介质和反射膜沉积在具有或不具有非含氮氮化物材料的中间透明电介质膜的记录介质上。这种布置防止记录介质被氧化，并且稳定记录介质的矫顽力特性和信息记录特性。

79. 发明授权

US5714251A Magneto-optic memory device 失效
标题翻译：磁光存储器件
公开(公告)号：US5714251A
公开(公告)日：1998-02-03
申请号：US450219
申请日：1995-05-25
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Hideyoshi Yamaoka
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirokane , Hideyoshi Yamaoka
IPC分类号： C23C14/06 , G11B7/243 , G11B7/253 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/257 , G11B7/258 , G11B7/2585 , G11B7/259 , G11B7/2595 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10591 , C23C14/0617 , C23C14/0652 , G11B11/10584 , G11B11/10586 , G11B7/243 , G11B7/257 , G11B7/258 , G11B2007/24306 , G11B2007/24308 , G11B2007/24314 , G11B2007/24316 , G11B2007/2432 , G11B2007/24328 , G11B2007/25706 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B2007/25718 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/2585 , G11B7/259 , G11B7/2595 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optic memory device which comprises a recording medium deposited by sputtering on a substrate such as glass, a transparent dielectric film formed on the recording medium, and a reflecting film deposited on the transparent dielectric film. This arrangement prevents the recording medium from being oxidized, and stabilizes coercive force characteristics and information recording characteristics of the recording medium.
摘要翻译：一种磁光存储器件，包括通过溅射沉积在诸如玻璃的基板上的记录介质，形成在记录介质上的透明电介质膜和沉积在透明电介质膜上的反射膜。这种布置防止记录介质被氧化，并且稳定记录介质的矫顽力特性和信息记录特性。

80. 发明授权

US5667887A Magneto-optical media 失效
标题翻译：磁光介质及其制造方法
公开(公告)号：US5667887A
公开(公告)日：1997-09-16
申请号：US85474
申请日：1993-06-28
申请人： Hiromu Miyazawa , Shinya Ootsuki , Takeo Kawase , Satoshi Nebashi
发明人： Hiromu Miyazawa , Shinya Ootsuki , Takeo Kawase , Satoshi Nebashi
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66 , B05D5/12
CPC分类号： G11B11/10586 , G11B11/10591 , G11B11/10593 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： The present invention relates to a magneto-optical media. More particularly, the present invention relates to a device for assuring a high S/N ratio by controlling the optical phase difference of the media by optimizing the film structure of a multi-layered thin film. The structure of the multi-layered thin film is such that the first protective film of a thickness between 400 .ANG. and 700 .ANG., a recording film of a thickness between 150 .ANG. and 300 .ANG., the second protective film of a thickness between 150 .ANG. and 250 .ANG., and a reflecting film of a thickness between 400 .ANG. and 800 .ANG., are successively laminated on a substrate. The first protective layer and the second protective layer are both suitably made of AlSiN, SiN, or SiO.sub.2 having refractivity between 1.95 and 2.05. The recording layer has a composition:Nd.sub.x Dy.sub.y (FeCo).sub.100-x-y,orNd.sub.x (DyTb).sub.y (Fe.sub.1-z Co.sub.z).sub.100-x-y,where25 at %.ltoreq.x+y.ltoreq.30 at %,0 at %.ltoreq.x.ltoreq.8 at %, and0.07 at %.ltoreq.z.ltoreq.0.43 at %.
摘要翻译：本发明涉及一种磁光介质。更具体地，本发明涉及通过优化多层薄膜的膜结构来控制介质的光学相位差来确保高S / N比的装置。多层薄膜的结构使得厚度在400至700之间的第一保护膜，厚度介于150至300之间的记录膜，厚度在150和第二层之间的第二保护膜， 250 ANGSTROM和厚度在400和800之间的反射膜依次层压在基片上。第一保护层和第二保护层均适宜地由折射率在1.95和2.05之间的AlSiN，SiN或SiO 2制成。记录层具有Nd x D y y（FeCo）100-xy或Nd x（DyTb）y（Fe 1-z Co z）100-xy的组成，其中25at％

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