公开(公告)号：US5109377A

公开(公告)日：1992-04-28

申请号：US396922

申请日：1989-08-22

申请人： Ryoichi Yamamoto ,  Takashi Yamada ,  Satoshi Matsubaguchi ,  Akira Nahara

发明人： Ryoichi Yamamoto ,  Takashi Yamada ,  Satoshi Matsubaguchi ,  Akira Nahara

IPC分类号： G11B7/26 ,  G11B11/105

CPC分类号： G11B11/10586 ,  G11B11/10584 ,  G11B7/26

摘要： A magneto-optical recording medium has a substrate and a recording layer which is formed on the substrate. The recording layer is formed of a plurality of transition metal films and a plurality of rare earth metal films which are alternately formed one on the other, and at least a metal selected from the group consisting of Cr, Al and Ti is contained in the rare earth metal films or the transition metal films.

摘要翻译： 磁光记录介质具有基板和形成在基板上的记录层。 记录层由多个过渡金属膜和多个彼此交替形成的稀土金属膜形成，并且至少含有选自Cr，Al和Ti的金属在稀有 土金属膜或过渡金属膜。

公开(公告)号：US5340647A

公开(公告)日：1994-08-23

申请号：US938686

申请日：1992-09-01

申请人： Satoshi Matsubaguchi ,  Takashi Yamada ,  Ryoichi Yamamoto

发明人： Satoshi Matsubaguchi ,  Takashi Yamada ,  Ryoichi Yamamoto

IPC分类号： G11B11/10 ,  G11B11/105 ,  B32B5/16 ,  G11B11/00

CPC分类号： G11B11/10584 ,  G11B11/10586 ,  Y10S428/90 ,  Y10T428/265

摘要： An optomagnetic recording medium comprising a substrate plate and, provided thereon, a recording layer and a reflection layer, said reflection layer consisting of a thin layer of an alloy of aluminum and tantalum.

摘要翻译： 一种光磁记录介质，包括基板，并且在其上设置有记录层和反射层，所述反射层由铝和钽的合金薄层组成。

公开(公告)号：US4929320A

公开(公告)日：1990-05-29

申请号：US368107

申请日：1989-06-19

申请人： Takashi Yamada ,  Masaaki Nomura ,  Ryoichi Yamamoto ,  Satoshi Matsubaguchi ,  Akira Nahara

发明人： Takashi Yamada ,  Masaaki Nomura ,  Ryoichi Yamamoto ,  Satoshi Matsubaguchi ,  Akira Nahara

IPC分类号： C23C14/34 ,  G11B11/105

CPC分类号： C23C14/3464 ,  G11B11/10582

摘要： A method of making a magneto-optical recording medium comprises the step of forming a magneto-optical recording layer on a substrate by simultaneously carrying out direct current sputtering and radio-frequency sputtering. Alternatively, a magneto-optical recording layer composed of thin rare earth metal layers and thin transition metal layers overlaid alternately on a substrate is formed by carrying out radio-frequency sputtering by use of a target formed of a rare earth metal material and direct current sputtering by use of a target formed of a transition metal material.

摘要翻译： 制造磁光记录介质的方法包括通过同时进行直流溅射和射频溅射在基板上形成磁光记录层的步骤。 或者，通过使用由稀土金属材料形成的靶和直流溅射来进行射频溅射，形成由薄稀土金属层和薄过渡金属层组成的磁光记录层 通过使用由过渡金属材料形成的靶。

公开(公告)号：US5075145A

公开(公告)日：1991-12-24

申请号：US502799

申请日：1990-04-02

申请人： Ryoichi Yamamoto ,  Takashi Yamada ,  Satoshi Matsubaguchi

发明人： Ryoichi Yamamoto ,  Takashi Yamada ,  Satoshi Matsubaguchi

IPC分类号： G11B7/258

CPC分类号： G11B7/258 ,  G11B7/2585 ,  Y10S428/913 ,  Y10S430/146 ,  Y10S430/165 ,  Y10T428/24917 ,  Y10T428/31678

摘要： An optical recording medium comprising a substrate and a metal reflective layer provided on the substrate, in which the metal reflective layer comprises an alloy of Al and at least one metal selected from the elements of Groups Ib, IIa, IVb, Vb, VIb, IIIa, IVa and Va of the Periodic Table.

摘要翻译： 一种光学记录介质，包括设置在基板上的基板和金属反射层，其中金属反射层包括Al和选自Ib，IIa，IVb，Vb，VIb，IIIa族元素中的至少一种金属的合金 ，IVa和Va。

公开(公告)号：US4837118A

公开(公告)日：1989-06-06

申请号：US48676

申请日：1987-05-11

申请人： Ryoichi Yamamoto ,  Masaaki Nomura ,  Takashi Yamada ,  Akira Nahara

发明人： Ryoichi Yamamoto ,  Masaaki Nomura ,  Takashi Yamada ,  Akira Nahara

IPC分类号： G11B11/10 ,  G11B11/105

CPC分类号： G11B11/10591 ,  G11B11/10586 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12701 ,  Y10T428/12729 ,  Y10T428/12861 ,  Y10T428/12889 ,  Y10T428/12896 ,  Y10T428/1291 ,  Y10T428/12917

摘要： A magneto-optical recording medium comprises a transparent substrate and a magneto-optical recording layer overlaid on the transparent substrate. The magneto-optical recording layer is formed by alternately overlaying a plurality of thin layers containing a rare earth metal-transition metal alloy for magneto-optical recording, and a plurality of thin layers containing at least one metal selected from the group consisting of gold, silver, lead, magnesium, copper, and iridium which are solid solution non-formable metals.

摘要翻译： 磁光记录介质包括透明基板和覆盖在透明基板上的磁光记录层。 磁光记录层通过交替重叠包含用于磁光记录的稀土金属 - 过渡金属合金的多个薄层和多个含有选自金， 银，铅，镁，铜和铱，它们是固溶非定形金属。

公开(公告)号：US4735698A

公开(公告)日：1988-04-05

申请号：US33840

申请日：1987-04-03

申请人： Masaaki Nomura ,  Takashi Yamada ,  Ryoichi Yamamoto ,  Akira Nahara

发明人： Masaaki Nomura ,  Takashi Yamada ,  Ryoichi Yamamoto ,  Akira Nahara

IPC分类号： G11B11/10 ,  C23C14/56 ,  G11B5/851 ,  G11B11/105 ,  B05D5/12 ,  C23C16/00 ,  G11B7/26

CPC分类号： G11B5/851 ,  C23C14/568 ,  G11B11/10586

摘要： A method of making a magneto-optical recording medium comprises the steps of moving a rotating substrate along a first dielectric target, at least one rare earth metal target, and a second dielectric target which are disposed in this order from an upstream side toward the downstream side in an in-line sputtering apparatus, and carrying out simultaneous sputtering on the substrate in the course of the movement of the substrate by use of the first dielectric target and the rare earth metal target. Thereafter, sputtering is carried out on the substrate by use of the rare earth metal target. Then, simultaneous sputtering is carried out on the substrate by use of the rare earth metal target and the second dielectric target.

摘要翻译： 制造磁光记录介质的方法包括以下步骤：沿着第一电介质靶，至少一个稀土金属靶和第二介电靶移动旋转衬底，所述稀土金属靶和第二电介质靶从上游侧向下游 并且通过使用第一电介质靶和稀土金属靶在衬底的移动过程中在衬底上进行同时溅射。 此后，通过使用稀土金属靶在基板上进行溅射。 然后，通过使用稀土金属靶和第二电介质靶在衬底上进行同时溅射。

公开(公告)号：US4975339A

公开(公告)日：1990-12-04

申请号：US245161

申请日：1988-09-16

申请人： Takashi Yamada ,  Masaaki Nomura ,  Ryoichi Yamamoto ,  Akira Nahara

发明人： Takashi Yamada ,  Masaaki Nomura ,  Ryoichi Yamamoto ,  Akira Nahara

IPC分类号： G11B5/64 ,  G11B11/105

CPC分类号： G11B5/64 ,  G11B11/10586 ,  Y10S428/90 ,  Y10S428/928

摘要： A magneto-optical recording medium comprises a transparent substrate, a magneto-optical recording layer formed on the transparent substrate and containing a rare earth metal-transition metal alloy, and a thin film containing at least either one of platinum and palladium and formed at least on one surface of the magneto-optical recording layer. Or, the magneto-optical recording medium comprises the transparent substrate, and a magneto-optical recording layer formed on the transparent substrate by alternately overlaying a plurality of thin layers containing a rare earth metal-transition metal alloy, and a plurality of thin layers containing at least either one of platinum and palladium.

公开(公告)号：US4897320A

公开(公告)日：1990-01-30

申请号：US231613

申请日：1988-08-11

申请人： Masaaki Nomura ,  Takashi Yamada ,  Ryoichi Yamamoto ,  Akira Nahara

发明人： Masaaki Nomura ,  Takashi Yamada ,  Ryoichi Yamamoto ,  Akira Nahara

IPC分类号： G11B11/10 ,  G11B5/72 ,  G11B11/105

CPC分类号： G11B5/72 ,  G11B11/10586 ,  Y10S428/90

摘要： A magneto-optical recording medium comprises a recording layer formed of a magnetic material, and a protective layer composed of a combination of a dielectric material with a rare earth metal exhibiting a high oxygen absorptivity and formed on the recording layer by a simultaneous sputtering or a simultaneous deposition process, whereby free oxygen given rise to in the course of sputtering or deposition is absorbed on the protective layer side before being absorbed on the recording layer side.

摘要翻译： 磁光记录介质包括由磁性材料形成的记录层和由电介质材料与表现出高氧吸收率的稀土金属的组合构成的保护层，并通过同时溅射形成在记录层上 同时沉积工艺，由此在溅射或沉积过程中产生的游离氧在被吸收在记录层侧之前被吸收在保护层侧上。

公开(公告)号：US4992336A

公开(公告)日：1991-02-12

申请号：US369622

申请日：1989-06-21

申请人： Ryoichi Yamamoto ,  Takashi Yamada

发明人： Ryoichi Yamamoto ,  Takashi Yamada

IPC分类号： G11B11/10 ,  G11B11/105

CPC分类号： G11B11/10586 ,  Y10S428/928 ,  Y10T428/12632 ,  Y10T428/12861 ,  Y10T428/12931

摘要： A magneto-optical recording medium is disclosed, comprising a substrate having thereon a recording layer comprising laminated thin films of rare earth metals and transition metals, wherein said recording layer has a structure such that a unit of laminated thin films is periodically laminated in the thickness direction of the recording layer, and each unit of said laminated thin films is composed of at least four thin films and includes a thin film of a rare earth metal having disposed adjacent to both surfaces of the thin film of the rare earth metal a thin film of a transition metal as the upper and lower layers.

摘要翻译： 公开了一种磁光记录介质，包括其上具有包括稀土金属和过渡金属的叠层薄膜的记录层的基板，其中所述记录层具有使层压薄膜的单位以厚度周期性层压的结构 记录层的方向，并且所述层压薄膜的每个单位由至少四个薄膜构成，并且包括稀土金属的薄膜，该薄膜与稀土金属薄膜的两个表面相邻设置有薄膜 作为上层和下层的过渡金属。

公开(公告)号：US5055353A

公开(公告)日：1991-10-08

申请号：US523410

申请日：1990-05-15

申请人： Ryoichi Yamamoto ,  Shizuo Umemura ,  Kiichi Kato ,  Takashi Yamada

发明人： Ryoichi Yamamoto ,  Shizuo Umemura ,  Kiichi Kato ,  Takashi Yamada

IPC分类号： G11B11/105

CPC分类号： G11B11/10582 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/265 ,  Y10T428/31678

摘要： A magneto-optical recording medium comprises a substrate and a magneto-optical recording film overlaid on the substrate. The magneto-optical recording film is composed of a first protective dielectric layer, a recording layer, a second protective dielectric layer, and a reflection metal layer, which layers are overlaid in this order on the substrate. The thickness of the first protective dielectric layer falls within the range of 950 .ANG. to 1,300 .ANG.. The thickness of the recording layer falls within the range of 200 .ANG. to 400 .ANG.. The thickness of the second protective dielectric layer falls within the range of 100 .ANG. to 600 .ANG.. The thickness of the reflection metal layer falls within the range of 200 .ANG. to 800 .ANG..

摘要翻译： 磁光记录介质包括衬底和覆盖在衬底上的磁光记录膜。 磁光记录膜由第一保护电介质层，记录层，第二保护电介质层和反射金属层构成，该层在基板上依次重叠。 第一保护介电层的厚度在950至1300的范围内。 记录层的厚度在200安培到400安培的范围内。 第二保护介电层的厚度在100埃至600埃的范围内。 反射金属层的厚度在200安培到800安培的范围内。