专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明授权

US5989671A Optical recording medium and manufacturing method thereof 失效
标题翻译：光记录介质及其制造方法
公开(公告)号：US5989671A
公开(公告)日：1999-11-23
申请号：US879916
申请日：1997-06-20
申请人： Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Kazuo Van
发明人： Junichiro Nakayama , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta , Kazuo Van
IPC分类号： G11B5/00 , G11B7/003 , G11B7/004 , G11B7/007 , G11B7/24 , G11B7/26 , G11B11/105 , G11B13/00 , G11B13/04 , G11B20/00 , G11B23/28 , G11B5/60
CPC分类号： G11B23/281 , G11B11/10582 , G11B13/00 , G11B13/04 , G11B13/045 , G11B23/28 , G11B5/00 , G11B7/0031 , G11B7/24 , G11B7/26 , G11B11/10502 , G11B20/00086 , G11B7/004 , G11B7/007 , Y10S428/90 , Y10T428/265
摘要： An optical tape including an optical recording layer for permitting information to be optically recorded thereon and a light-reflective magnetic layer. The light-reflective magnetic layer which reflects light projected onto the recording layer, also permits magnetic recording or magneto-optical recording to be performed thereon, thereby increasing a storage capacity of the optical tape remarkably. Further, the optical tape is provided with a layer to form guiding grooves for tracking control. The layer to form guiding grooves is made up of ultraviolet-hardening resin, photo-resist, or a photochromic material. For example, in the case of using ultraviolet-hardening resin, after a guiding groove pattern has been exposed by projecting an ultraviolet ray on a layer made up of ultraviolet-hardening resin, the exposed areas harden to form areas corresponding to guiding grooves between those exposed areas. The guiding grooves are formed by removing the areas corresponding to guiding grooves from the layer made up of the ultraviolet-hardening resin. Additionally, along with a guiding groove pattern, an index pattern can also be exposed. The guiding grooves thus formed do not reduce the recording density for information of the optical tape.
摘要翻译：一种光学带，包括用于允许光学记录信息的光学记录层和光反射性磁性层。反射投影到记录层上的光的光反射性磁性层也可以在其上进行磁记录或磁光记录，从而显着提高光带的存储容量。此外，光带设置有一层以形成用于跟踪控制的引导槽。形成导向槽的层由紫外线硬化树脂，光致抗蚀剂或光致变色材料构成。例如，在使用紫外线硬化树脂的情况下，通过在由紫外线固化型树脂构成的层上投射紫外线而引导槽图案露出后，露出的区域变硬，形成与引导槽对应的区域暴露地区。通过从由紫外线固化树脂构成的层去除与导向槽相对应的区域来形成引导槽。另外，与引导槽图案一样，还可以暴露索引图案。如此形成的引导槽不会降低用于光带的信息的记录密度。

62. 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。

63. 发明授权

US5635296A Magneto-optical recording medium whereon overwriting is permitted by light intensity modulation 失效
标题翻译：通过光强度调制允许覆盖的磁光记录介质
公开(公告)号：US5635296A
公开(公告)日：1997-06-03
申请号：US260095
申请日：1994-06-15
申请人： Junichiro Nakayama , Michinobu Mieda , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Junichiro Nakayama , Michinobu Mieda , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G11B11/10 , G11B11/105 , G11B5/66
CPC分类号： G11B11/10506 , G11B11/10523 , G11B11/10586 , Y10T428/26 , Y10T428/265
摘要： A magneto-optical recording medium includes a first magnetic layer, a second magnetic layer and a third magnetic layer respectively made of rare earth-transition metal alloys. The first magnetic layer has a perpendicular magnetization in a temperature range between room temperature and its Curie temperature. The second magnetic layer has its Curie temperature higher than that of the first magnetic layer, and coercive force thereof at room temperature is nearly zero. The third magnetic layer has a perpendicular magnetization in a temperature range between room temperature and its Curie temperature. The Curie temperature of the third magnetic layer is higher than the Curie temperature of the first magnetic layer. The coercive force of the third magnetic layer at room temperature is lower than that of the first magnetic layer. The compensation temperature of the third magnetic layer is higher than that of the second magnetic layer. Having the above arrangement, an overwriting is permitted on the magneto-optical recording medium, and an initializing magnetic field and a recording magnetic field in a magneto-optical recording and reproducing device are set in the same direction.
摘要翻译：磁光记录介质包括分别由稀土 - 过渡金属合金制成的第一磁性层，第二磁性层和第三磁性层。第一磁性层在室温和居里温度之间的温度范围内具有垂直磁化强度。第二磁性层的居里温度高于第一磁性层，其室温下的矫顽力几乎为零。第三磁性层在室温与其居里温度之间的温度范围内具有垂直磁化强度。第三磁性层的居里温度高于第一磁性层的居里温度。室温下第三磁性层的矫顽力低于第一磁性层的矫顽力。第三磁性层的补偿温度高于第二磁性层的补偿温度。具有上述结构，在磁光记录介质上允许重写，磁光记录和再现装置中的初始化磁场和记录磁场被设置在相同的方向上。

64. 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。

65. 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。

66. 发明授权

US5305254A Magneto-optic memory device 失效
标题翻译：磁光存储器件
公开(公告)号：US5305254A
公开(公告)日：1994-04-19
申请号：US993517
申请日：1992-12-17
申请人： Yoshiteru Murakami , Junichiro Nakayama , Ichiro Hiramatsu , Akira Takahashi , Kenji Ohta , Kazuo Van , Hiroyuki Katayama
发明人： Yoshiteru Murakami , Junichiro Nakayama , Ichiro Hiramatsu , Akira Takahashi , Kenji Ohta , Kazuo Van , Hiroyuki Katayama
IPC分类号： G11B5/64 , G11B11/105 , G11C13/04
CPC分类号： G11B5/64 , G11B11/10582
摘要： A magneto-optic memory device, such as a magneto-optic disk or magneto-optic card having a pair of opposed substrates at least one of which is transparent. Between the substrates is a magneto-optic memory layer made of a stack of dielectric film, a rear earth-transition metal alloy thin film, a dielectric film and a light reflecting film built on the surface of the transparent substrate opposed to the other substrate. An adhesive layer covers the memory layer and bonds the transparent substrate to the other substrate. Lastly, a metal nitride film interposed between the light reflecting film of the memory layer and the adhesive layer.
摘要翻译：磁光存储器件，例如磁光盘或磁光卡，其具有一对相对的衬底，其中至少一个是透明的。在基板之间是由与介质膜叠层构成的磁光存储层，后置接地 - 过渡金属合金薄膜，电介质膜和反射膜构成在与其他基板相对的透明基板的表面上。粘合剂层覆盖存储层并将透明基底粘合到另一个基底上。最后，介于存储层的光反射膜和粘合剂层之间的金属氮化物膜。

67. 发明授权

US5095350A Magneto-optic memory medium 失效
标题翻译：磁光存储介质
公开(公告)号：US5095350A
公开(公告)日：1992-03-10
申请号：US505476
申请日：1990-04-06
申请人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Tomokazu Ise , Tomoyuki Miyake , Junichiro Nakayama
发明人： Kenji Ohta , Akira Takahashi , Hiroyuki Katayama , Tomokazu Ise , Tomoyuki Miyake , Junichiro Nakayama
IPC分类号： G11B11/10 , G11B11/105 , H01F10/08
CPC分类号： G11B11/10586 , Y10S428/928 , Y10T428/12861
摘要： A magneto-optic memory medium of an exchange-coupled ferrimagnetic double-layered structure having a recording film of a specific amorphous GdTbFe alloy and a reading film of a specific amorphous GdNdFe alloy.
摘要翻译：具有特定无定形GdTbFe合金的记录膜和特定无定形GdNdFe合金的读取膜的交换耦合铁磁双层结构的磁光存储介质。

68. 发明授权

US5088086A Optical recording medium and the method of recording, reading, and erasing information using it 失效
标题翻译：光学记录介质及其记录，读取和擦除信息的方法
公开(公告)号：US5088086A
公开(公告)日：1992-02-11
申请号：US385444
申请日：1989-07-27
申请人： Kazuo Van , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
发明人： Kazuo Van , Hiroyuki Katayama , Akira Takahashi , Kenji Ohta
IPC分类号： G02F1/17 , G03C1/73 , G11B7/00 , G11B7/004 , G11B7/0045 , G11B7/0055 , G11B7/24 , G11B7/244
CPC分类号： G11B7/253 , G11B7/00455 , G11B7/244 , G11B2007/24612 , G11B7/2467 , G11B7/2531 , G11B7/2533 , Y10S430/146
摘要： The invention provides an optical recording medium and a method of recording, reading, and erasing information to an optical recording medium, where information is recorded, read, and erased to the recording medium by applying beams projected from a light source capable of varying wavelength of beams. The recording medium contains at least two kinds of organic compounds each presenting photochromic phenomenon and being dispersed in binder. By projecting beams onto the optical recording medium, recording, reading, and erasure of information making use of a photochromic phenomenon can be executed independently against each organic compound dispersed in the recording medium. As a result, the optical recording medium promotes to increase the information recording density in proportion to the number of the kind of organic compounds.

69. 发明授权

US5077714A Magneto-optical recording and reproducing device using the modulation of intensities of the magnetic field and light beam 失效
标题翻译：使用磁场和光束的强度调制的磁光记录和再现装置
公开(公告)号：US5077714A
公开(公告)日：1991-12-31
申请号：US340771
申请日：1989-04-20
申请人： Hiroyuki Katayama , Kenji Ohta , Junichiro Nakayama , Tomoyuki Miyake , Akira Takahashi
发明人： Hiroyuki Katayama , Kenji Ohta , Junichiro Nakayama , Tomoyuki Miyake , Akira Takahashi
IPC分类号： G11B11/10 , G11B11/105
CPC分类号： G11B11/1051 , G11B11/10515 , G11B11/10521 , G11B11/10528
摘要： A magneto-optical recording and reproducing device for recording and reproducing data determined by negative magnetized areas in a magneto-optical recording medium. The device including a laser beam output level control means for controlling the intensity of a laser beam when recording data on the medium. The device prevents the causes of false signals and incorrect detection influenced by residual negative magnetized domains by increasing laser beam intensity when rewriting positive magnetized areas to erase residual negative magnetized areas.

70. 发明授权

US5002813A Substrate with protective film and method of manufacturing optical memory device using the same 失效
标题翻译：具有保护膜的基板和使用其制造光学存储器件的方法
公开(公告)号：US5002813A
公开(公告)日：1991-03-26
申请号：US384254
申请日：1989-07-21
申请人： Junichiro Nakayama , Kenji Ohta , Hiroyuki Katayama , Akira Takahashi , Yoshiteru Murakami
发明人： Junichiro Nakayama , Kenji Ohta , Hiroyuki Katayama , Akira Takahashi , Yoshiteru Murakami
IPC分类号： B42D15/10 , G06K19/06 , G11B7/24 , G11B7/26
CPC分类号： G11B7/26 , Y10S428/913 , Y10S430/146 , Y10T156/10 , Y10T428/239 , Y10T428/31507
摘要： A substrate for manufacturing an optical memory device includes one surface covered with a protective film provided with openings only in portions corresponding to recording layers to be formed on the substrate, thereby allowing the protective film to function as a mask for forming the recording layers in a recording layer forming process. Also disclosed is a method of manufacturing an optical memory device including the steps of continuously feeding a substrate covered with a protective film provided with openings only in portions corresponding to recording layers to be formed on the substrate, forming the recording layers through the openings on the substrate, forming guide tracks on the substrate, stripping the protective film from the substrate, cutting the substrate to a predetermined size, and forming a protective layer on the substrate.
摘要翻译：用于制造光学存储器件的衬底包括一个被保护膜覆盖的表面，该保护膜仅在对应于要形成在衬底上的记录层的部分中具有开口，从而允许保护膜用作掩模，用于形成记录层记录层形成过程。还公开了一种制造光学存储器件的方法，包括以下步骤：将覆盖有保护膜的衬底连续地供给到仅在对应于要形成在衬底上的记录层的部分上的开口，通过上述开口形成记录层基板，在基板上形成引导轨道，从基板剥离保护膜，将基板切割成预定尺寸，以及在基板上形成保护层。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式