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31. 发明授权

US5353278A Magneto-optical disk and method of manufacturing the same 失效
标题翻译：磁光盘及其制造方法
公开(公告)号：US5353278A
公开(公告)日：1994-10-04
申请号：US694990
申请日：1991-05-02
申请人： Yoshiteru Murakami , Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Hirotaka Toki
发明人： Yoshiteru Murakami , Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Hirotaka Toki
IPC分类号： G11B11/105 , G11B23/00 , G11B5/54
CPC分类号： G11B23/0042 , G11B11/10582 , G11B11/10584
摘要： A magneto-optical disk comprising a substrate whereon a recording medium is formed, and a depression is formed on the substrate on the inside of the recording medium of the substrate. A center hub is installed on the depression such that the center hub is substantially level with a protective resin layer covering the recording medium. On the center hub, a flying head performs CSS (Contact Start and Stop). This configuration of the disk eliminates the occurrence of dust due to the abrasion and head crash, and achieves stable CSS. A method of manufacturing the magneto-optical disk, wherein the protective resin layer is formed after installing the center hub on the depression. In this method, since a space is not produced between the center hub and the protective resin layer, the stable flying characteristics is obtained. And a magneto-optical disk whereon small physical bumps and pits are formed on the substrate on the inside of the recording medium, which prevents the flying head from sticking to the disk. A method of manufacturing the magneto-optical disk by using a stamper, which permits the disk to be mass produced.
摘要翻译：一种磁光盘，包括形成记录介质的基板，并且在基板的记录介质的内侧上的基板上形成凹陷。中心毂安装在凹陷处，使得中心毂基本上与覆盖记录介质的保护树脂层水平。在中心枢纽上，飞头执行CSS（联系人启动和停止）。盘的这种配置消除了由于磨损和头部碰撞引起的灰尘的发生，并且实现了稳定的CSS。一种制造磁光盘的方法，其中在将中心毂安装在凹陷部之后形成保护树脂层。在该方法中，由于在中心轮毂和保护树脂层之间不产生空间，因此获得了稳定的飞行特性。另外，在记录介质的内侧的基板上形成小的物理凸点和凹坑的磁光盘，防止飞头粘附到盘上。通过使用压模来制造磁光盘的方法，该压模允许大量生产盘。

32. 发明授权

US5081614A Magneto-optical head utilizing central and peripheral portions of reflected light flux for different purposes 失效
标题翻译：用于不同目的的反射光通量的中心和外围部分的磁光头
公开(公告)号：US5081614A
公开(公告)日：1992-01-14
申请号：US577817
申请日：1990-09-04
申请人： Akira Takahashi , Toshihisa DeGuchi , Yoshiteru Murakami , Michinobu Mieda , Kazuo Van , Kenji Ohta , Hiroyuki Katayama , Tomoyuki Miyake
发明人： Akira Takahashi , Toshihisa DeGuchi , Yoshiteru Murakami , Michinobu Mieda , Kazuo Van , Kenji Ohta , Hiroyuki Katayama , Tomoyuki Miyake
IPC分类号： G11B7/12 , G11B7/135 , G11B11/105
CPC分类号： G11B11/10532 , G11B7/12 , G11B7/1381
摘要： A magneto-optical head wherein a light flux, which is reflected from a recording medium, is separated into its central portion and remaining portion. The central light flux portion is only used as a magneto-optical signal while the remaining light flux portion is only used as an optical servo signal.
摘要翻译：一种磁光头，其中从记录介质反射的光束被分离成其中心部分和剩余部分。中央光束部分仅用作磁光信号，而剩余光通量部分仅用作光伺服信号。

33. 发明授权

US4740947A Dual surface optical memory disc 失效
标题翻译：双面光学记忆盘
公开(公告)号：US4740947A
公开(公告)日：1988-04-26
申请号：US61034
申请日：1987-06-12
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirogane , Yoshiteru Murakami
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirogane , Yoshiteru Murakami
IPC分类号： B29C65/48 , G11B7/24 , G11B11/105
CPC分类号： G11B11/10586 , B29C65/1406 , B29C65/4845 , B29C65/4875 , B29C66/452 , B29C66/73366 , G11B7/24015 , G11B7/24024 , B29C65/4885 , B29C65/7826 , B29C66/8322 , B29L2017/005
摘要： A first optical memory disc and a second optical memory disc are fixed to each other by an adhesive layer so as to form a dual-surface optical memory disc. In a manufacturing step, an adhesive, preferably pre-cured photo-polymer mixed with spherical spacer elements, is painted on either one of or both of the first and second optical memory discs. When a predetermined pressure is applied between the two optical memory discs, the thickness of the adhesive layer is fixed by the diameter of the spherical spacer elements. While the pressure is applied between the two optical memory discs, ultraviolet rays are applied to the adhesive layer through one of the first or second optical memory discs so as to cure the photo-polymer, thereby tightly joining the first and second optical memory discs to each other.
摘要翻译：第一光存储盘和第二光存储盘通过粘合剂层彼此固定，以形成双表面光存储盘。在制造步骤中，将粘合剂，优选与球形间隔元件混合的预固化光聚合物涂覆在第一和第二光学存储盘的一个或两个上。当在两个光学存储盘之间施加预定的压力时，粘合剂层的厚度由球形间隔元件的直径固定。当在两个光学存储盘之间施加压力时，通过第一或第二光学存储盘中的一个将紫外线施加到粘合剂层，以便固化光聚合物，从而将第一和第二光学存储盘紧密连接到彼此。

34. 发明授权

US4792474A Optical memory element 失效
标题翻译：光学存储元件
公开(公告)号：US4792474A
公开(公告)日：1988-12-20
申请号：US908716
申请日：1986-09-18
申请人： Yoshiteru Murakami , Akira Takahashi , Yoshikazu Fujii , Hiroyuki Katayama , Kenji Ohta
发明人： Yoshiteru Murakami , Akira Takahashi , Yoshikazu Fujii , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B11/10 , G11B7/254 , G11B11/105 , B32B3/02 , B32B9/00 , G01D9/00 , G01D15/10
CPC分类号： G11B7/2578 , G11B11/10586 , G11B7/254 , G11B2007/24306 , G11B2007/25708 , G11B2007/2571 , G11B2007/25713 , G11B7/2531 , Y10S430/146
摘要： An optical memory element comprises a substrate, a recording medium layer and an aluminum silicon nitride film laminated in this order.
摘要翻译：光学存储元件包括依次层叠的基板，记录介质层和氮化铝膜。

35. 再颁专利

USRE35629E Magneto-optical memory element 失效
标题翻译：磁光存储元件
公开(公告)号：USRE35629E
公开(公告)日：1997-10-14
申请号：US136019
申请日：1993-10-14
申请人： Yoshiteru Murakami , Akira Takahashi , Kazuo Van , Junichiro Nakayama , Hiroyuki Katayama , Kenji Ohta
发明人： Yoshiteru Murakami , Akira Takahashi , Kazuo Van , Junichiro Nakayama , Hiroyuki Katayama , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B7/24
CPC分类号： G11B11/10584 , G11B11/10586
摘要： A magneto-optical memory element has a multi-layer construction in the order from a side first receiving light from a light-source which includes a first transparent dielectric film, a rare earth transition metal alloy film, a second transparent dielectric film and a reflective film. The magneto-optical device uses circular dichroism effect of a magnetic mater for reading information. The rare earth transition metal alloy film has a refractive index represented by n.+-..DELTA.n wherein n=3.2-3.55i and .DELTA.n=0.05-0.03i. The thickness of film is about 18 to 46 nm. The second transparent dielectric film has a refractive index of 2.0.+-.0.2 and a film thickness of 80 to 108 nm.
摘要翻译：磁光存储元件具有从第一次接收来自光源的一侧的顺序的多层结构，该光源包括第一透明电介质膜，稀土过渡金属合金膜，第二透明电介质膜和反射电影。磁光装置使用磁性体的圆二色性来读取信息。稀土过渡金属合金膜的折射率为n +/- DELTA n，n = 3.2-3.55i，DELTA n = 0.05-0.03i。膜的厚度为约18至46nm。第二透明电介质膜的折射率为2.0 +/- 0.2，膜厚为80〜108nm。

36. 发明授权

US5053611A Device for reducing mechanical vibrations when utilizing a magneto-optical card as a recording medium 失效
标题翻译：使用磁光卡作为记录介质时减少机械振动的装置
公开(公告)号：US5053611A
公开(公告)日：1991-10-01
申请号：US287053
申请日：1988-12-21
申请人： Akira Takahashi , Yoshiteru Murakami , Junichiro Nakayama , Kenji Ohta , Hiroyuki Katayama , Michinobu Mieda
发明人： Akira Takahashi , Yoshiteru Murakami , Junichiro Nakayama , Kenji Ohta , Hiroyuki Katayama , Michinobu Mieda
IPC分类号： G11B11/10 , G11B7/0033 , G11B11/105 , G11B17/34
CPC分类号： G11B11/10565 , G11B11/10556 , G11B11/1056 , G11B11/10563 , G11B17/34 , G11B7/0033
摘要： A recording and reproducing device for a magneto-optical card includes an optical head for irradiating a magneto-optical recording medium of a magneto-optical card placed into the device with a laser beam. A magnetic field generator applies a biased magnetic field to the magneto-optical recording medium, and an optical system manipulating mechanism for the optical system of the above-mentioned optical head varies the spot irradiated by the laser beam. The optical head is fixed to the main frame of the device. The magneto-optical card is also supported where it is irradiated by the laser beam emitted from the optical head. The magneto-optical card is moved in a plane parallel to the surface of the magneto-optical card for rough searching and then a part of or the whole magnetic field generator is moved to come into contact with the magneto-optical card to stop the vibration of the magneto-optical card. The spot to be irradiated by the laser beam is then varied by means of the optical system of the optical head.

37. 发明授权

US4719137A Magneto-optic memory element 失效
标题翻译：磁光存储元件
公开(公告)号：US4719137A
公开(公告)日：1988-01-12
申请号：US721707
申请日：1985-04-10
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirogane , Yoshiteru Murakami
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Junji Hirogane , Yoshiteru Murakami
IPC分类号： G11B11/105 , G11B7/24
CPC分类号： G11B11/10586 , G11B11/10593 , Y10S428/90 , Y10S430/146 , Y10T428/22 , Y10T428/31678
摘要： A magneto-optic memory element includes a GdTbFe recording layer sandwiched between a pair of transparent AlN dielectric layers. At least one of the pair of transparent AlN dielectric layers is extended to have a size larger than the GdTbFe recording layer so as to cover the peripheral edge of the GdTbFe recording layer, thereby protecting the GdTbFe recording layer from oxygen and moisture. An Al-Ni alloy reflection film is formed on one of the pair of transparent AlN dielectric layers in order to increase the apparent Kerr rotation angle produced by the magneto-optic memory element.

38. 发明授权

US5707727A Magneto-optical recording medium 失效
标题翻译：磁光记录介质
公开(公告)号：US5707727A
公开(公告)日：1998-01-13
申请号：US395165
申请日：1995-02-27
申请人： Akira Takahashi , Yoshiteru Murakami , Junsaku Nakajima , Kenji Ohta , Junichiro Nakayama , Hiroyuki Katayama , Michinobu Mieda
发明人： Akira Takahashi , Yoshiteru Murakami , Junsaku Nakajima , Kenji Ohta , Junichiro Nakayama , Hiroyuki Katayama , Michinobu Mieda
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66 , B32B5/16 , G11B5/02 , G11B11/00
CPC分类号： G11B11/10593 , G11B11/10506 , G11B11/10515 , G11B11/10517 , G11B11/10586 , Y10S428/90 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium has a recording layer whereon information is magneto-optically recorded. A readout layer is provided on the recording layer. The readout layer has a compensating temperature that is located between room temperature and the Curie temperature. In the readout layer, upon an application of a light beam, the in-plane magnetization occurs at room temperature and a transition from the in-plane magnetization to vertical magnetization occurs as the temperature of the irradiated area of the readout layer rises above a predetermined temperature. By employing this magneto-optical recording medium, with an application of a light beam that is intensity modulated into two levels, only a spot having a temperature not less than a predetermined temperature is involved in the reproduction; therefore, a recorded bit with a size smaller than the diameter of the light beam can be reproduced, thereby greatly increasing the recording density. Further, the level of the reproduced signals is increased, and crosstalk from the adjoining tracks is reduced; thus, information recording and overwriting can be conducted more easily.
摘要翻译：磁光记录介质具有磁信息记录信息的记录层。读出层设置在记录层上。读出层具有位于室温和居里温度之间的补偿温度。在读出层中，在施加光束时，在室温下发生平面内磁化，并且随着读出层的照射区域的温度上升到预定值以上，从面内磁化向垂直磁化的转变发生温度。通过采用该磁光记录介质，通过施加强度调制为两个级别的光束，只有具有不低于预定温度的温度的点参与再现; 因此，可以再现具有小于光束直径的尺寸的记录位，从而大大提高记录密度。此外，再现信号的电平增加，并且来自相邻轨道的串扰减小; 因此，可以更容易地进行信息记录和重写。

39. 发明授权

US4956243A Optical memory element 失效
标题翻译：光学存储元件
公开(公告)号：US4956243A
公开(公告)日：1990-09-11
申请号：US9211
申请日：1987-01-30
申请人： Tomoyuki Miyake , Yoshiteru Murakami , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Tomoyuki Miyake , Yoshiteru Murakami , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B7/24 , G11B7/241 , G11B11/105 , G11B13/04
CPC分类号： G11B7/258 , G11B11/10586 , G11B11/10589 , G11B13/045 , G11B7/24 , G11B7/241 , G11B2007/24306 , G11B2007/25708 , G11B2007/25713 , G11B7/2531 , G11B7/2533 , G11B7/2534 , G11B7/2585 , G11B7/259 , G11B7/2595 , Y10S428/90
摘要： An optical memory element contains first and second reflector films, wherein the first reflector film is made of a material of a sufficiently large light reflectance in a relative sense as compared to the second reflector film, and the second reflector film being made of a material of a sufficiently small thermal conductivity in a relative sense as compared to the first reflector film.
摘要翻译：光学存储元件包含第一和第二反射膜，其中与第二反射膜相比，第一反射膜由与相对意义上的足够大的光反射率的材料制成，第二反射膜由材料制成与第一反射膜相比，相对意义上的足够小的热导率。

40. 发明授权

US4786559A Magnetooptical storage element 失效
标题翻译：磁光存储元件
公开(公告)号：US4786559A
公开(公告)日：1988-11-22
申请号：US945354
申请日：1986-12-22
申请人： Yoshiteru Murakami , Akira Takahashi , Hiroyuki Katayama , Tomoyuki Miyake , Kenji Ohta , Michinobu Mieda
发明人： Yoshiteru Murakami , Akira Takahashi , Hiroyuki Katayama , Tomoyuki Miyake , Kenji Ohta , Michinobu Mieda
IPC分类号： G11B5/64 , G11B11/105 , G11B7/24
CPC分类号： G11B5/64 , G11B11/10586 , Y10S428/90
摘要： A magnetooptical storage element comprising a recording layer of a multi-layered structure including a reflecting film, said reflecting film being made of metals or metalloids having a low thermal conductivity coefficient.
摘要翻译：一种磁光存储元件，包括包括反射膜的多层结构的记录层，所述反射膜由具有低导热系数的金属或准金属制成。

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