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1. 发明授权

US06780513B2 Magnetic recording medium 失效
标题翻译：磁记录介质
公开(公告)号：US06780513B2
公开(公告)日：2004-08-24
申请号：US10323650
申请日：2002-12-20
申请人： Takahiro Hayashi , Kunihiro Ueda , Kenji Shirasuna
发明人： Takahiro Hayashi , Kunihiro Ueda , Kenji Shirasuna
IPC分类号： G11B571
CPC分类号： G11B5/725
摘要： The present invention provides a metal thin film type magnetic recording medium having improved tracking stability and friction stability, by improving the lubricating layer in consideration of the state of forming the lubricating layer in view of the distribution of the lubricant. The magnetic recording medium according to the present invention at least has, in turn, a metal magnetic layer, a protective layer and a lubricating layer on one surface of a nonmagnetic base. The covering ratio of a surface of the lubricating layer with the lubricant is 65-75%. The lubricating layer is produced by applying a mixture of solvents containing at least three solvents selected from three groups, that is from at least one from group (1): ketone solvents having a boiling point of 40-130° C., at least one from group (2): aliphatic hydrocarbon solvents having 4 carbons-10 carbons, and at least one from group (3) alcoholic solvents having equal or less than 6 carbons, the mixture ratio of these solvents of respective groups being preferably selected to be: (1) ketone solvents 5-20% wt.; (2) aliphatic hydrocarbon solvents 10-40% wt.; and (3) alcoholic solvents 40-80% wt.
摘要翻译：本发明提供了一种具有改进的跟踪稳定性和摩擦稳定性的金属薄膜型磁记录介质，考虑到润滑剂的分布，考虑到形成润滑层的状态来改进润滑层。根据本发明至少在非磁性基体的一个表面上具有金属磁性层，保护层和润滑层。润滑剂表面与润滑剂的比例为65-75％。润滑层是通过将含有至少三种选自三组的溶剂的混合物（即来自组中的至少一种）（1）：沸点为40-130℃的酮溶剂，至少一种来自基团（2）：具有4个碳原子数为10的碳的脂族烃溶剂和至少一种（3）具有等于或少于6个碳原子的醇溶剂，各基团的这些溶剂的混合比优选选择为：（1）酮溶剂5-20％wt。（2）脂肪族烃溶剂10-40％wt。和（3）醇溶剂40-80重量％

2. 发明申请

US20050106420A1 Magnetic recording medium 有权
标题翻译：磁记录介质
公开(公告)号：US20050106420A1
公开(公告)日：2005-05-19
申请号：US10868914
申请日：2004-06-17
申请人： Shigeo Kurose , Hiroyuki Tanaka , Kenji Shirasuna
发明人： Shigeo Kurose , Hiroyuki Tanaka , Kenji Shirasuna
IPC分类号： G11B5/00 , G11B5/17 , G11B5/70 , G11B5/702 , G11B5/738 , G11B5/74
CPC分类号： G11B5/738 , G11B5/70 , G11B5/7026 , G11B5/74 , G11B2005/001 , G11B2005/0016 , Y10T428/265
摘要： A magnetic recording medium is provided, in which a high recording density is realized, and an electromagnetic transducing characteristic and an error rate are improved. The magnetic recording medium includes a non-magnetic layer containing a non-magnetic powder and a binder resin and a magnetic layer containing a ferromagnetic powder and a binder resin on one surface of a non-magnetic substrate, the non-magnetic powder contains a non-magnetic inorganic powder having an average particle diameter of 80 nm or less, the three-dimensional center surface average roughness of the magnetic layer surface is 3.0 nm or less in a region of 100 μm2 based on a measurement with an atomic force microscope, and the area share held by asperities of at least ±5.0 nm with reference to the surface at an average height is 15 percent or less in a region of 100 μm2 on the magnetic layer surface.
摘要翻译：提供了一种磁记录介质，其中实现了高记录密度，并提高了电磁传感特性和误码率。磁记录介质包括非磁性粉末和粘合剂树脂的非磁性层和在非磁性基材的一个表面上含有铁磁粉末和粘合剂树脂的磁性层，非磁性粉末含有非磁性粉末，平均粒径为80nm以下的磁性无机粉末，基于a的磁性层表面的三维中心面平均粗糙度为100nm以下的区域为3.0nm以下使用原子力显微镜进行测量，相对于平均高度的表面，至少±5.0nm的粗糙度保持的面积份额在100mum 2的区域中为15％以下磁性层表面。

3. 发明申请

US20070036060A1 DATA RECORDING METHOD, DATA REPRODUCING METHOD, DATA RECORDING APPARATUS, DATA REPRODUCING APPARATUS, AND INFORMATION RECORDING MEDIUM 审中-公开
标题翻译：数据记录方法，数据再现方法，数据记录装置，数据再现装置和信息记录介质
公开(公告)号：US20070036060A1
公开(公告)日：2007-02-15
申请号：US11463631
申请日：2006-08-10
申请人： Kenji Shirasuna
发明人： Kenji Shirasuna
IPC分类号： G11B9/00
CPC分类号： G11B11/08 , B82Y10/00 , G11B9/1409 , G11B11/03
摘要： A data recording method that records data by carrying out a mark forming process that blows recording mark forming gas onto a surface of an information recording medium substrate and irradiates first recording positions on the surface set corresponding to a content of the data to be recorded using a recording mark forming beam to cause recording material included in the recording mark forming gas to accumulate at regions irradiated with the recording mark forming beam and form recording marks, which have a different electrical resistance to the surface of the information recording medium substrate, at the first recording positions.
摘要翻译：一种数据记录方法，用于通过执行将记录标记形成气体吹到信息记录介质基板的表面上的标记形成处理，并使用一个记录介质基板照射与要记录的数据的内容对应的表面集上的第一记录位置来记录数据记录标记形成光束，使包含在记录标记形成气体中的记录材料在记录标记形成用光束照射的区域积聚，形成与信息记录介质基板的表面不同的电阻的第一记录标记记录位置。

4. 发明申请

US20060239154A1 Optical recording medium sample fabricating method, optical recording medium sample analyzing method. optical recording medium fabricating apparatus, and optical recording medium fabricating method 审中-公开
标题翻译：光记录介质样品制备方法，光记录介质样品分析方法。光记录介质制造装置和光记录介质制造方法
公开(公告)号：US20060239154A1
公开(公告)日：2006-10-26
申请号：US10554552
申请日：2004-06-15
申请人： Kenji Shirasuna , Hideki Sunohara
发明人： Kenji Shirasuna , Hideki Sunohara
IPC分类号： G11B20/00
CPC分类号： G11B7/26 , G01N21/9506 , G11B7/268
摘要： The method of making an optical recording medium sample in accordance with the present invention comprises a laminate preparing step of preparing a laminate including a substrate used for an optical recording medium, and a functional layer formed adjacent to one side of the substrate; and a substrate removing step of removing a predetermined part of the substrate in the laminate so as to expose a contact surface of the functional layer with the substrate. In the optical recording medium sample obtained by the above-mentioned making method, since the functional layer is disposed in conformity to the surface of the substrate, profiles such as grooves, lands, and surface roughness of the surface of the substrate on the functional layer side are accurately transferred with a high precision to the exposed contact surface. Therefore, analyzing the exposed contact surface can grasp the surface form of the substrate.
摘要翻译：根据本发明的制备光学记录介质样品的方法包括制备包括用于光学记录介质的基板和与基板的一侧相邻形成的功能层的层压制品的层压制备步骤; 以及基板去除步骤，去除层压体中的基板的预定部分，以使基板的功能层的接触表面露出。在通过上述制造方法获得的光学记录介质样品中，由于功能层被设置成与基板的表面一致，所以功能层上的凹槽，焊盘的表面粗糙度和表面粗糙度侧面准确地高精度地转印到暴露的接触表面。因此，分析曝光的接触面可以抓住基板的表面形状。

5. 发明授权

US07300714B2 Magnetic recording medium 有权
标题翻译：磁记录介质
公开(公告)号：US07300714B2
公开(公告)日：2007-11-27
申请号：US10868914
申请日：2004-06-17
申请人： Shigeo Kurose , Hiroyuki Tanaka , Kenji Shirasuna
发明人： Shigeo Kurose , Hiroyuki Tanaka , Kenji Shirasuna
IPC分类号： G11B5/66
CPC分类号： G11B5/738 , G11B5/70 , G11B5/7026 , G11B5/74 , G11B2005/001 , G11B2005/0016 , Y10T428/265
摘要： A magnetic recording medium is provided, in which a high recording density is realized, and an electromagnetic transducing characteristic and an error rate are improved. The magnetic recording medium includes a non-magnetic layer containing a non-magnetic powder and a binder resin and a magnetic layer containing a ferromagnetic powder and a binder resin on one surface of a non-magnetic substrate, the non-magnetic powder contains a non-magnetic inorganic powder having an average particle diameter of 80 nm or less, the three-dimensional center surface average roughness of the magnetic layer surface is 3.0 nm or less in a region of 100 μm2 based on a measurement with an atomic force microscope, and the area share held by asperities of at least ±5.0 nm with reference to the surface at an average height is 15 percent or less in a region of 100 μm2 on the magnetic layer surface.
摘要翻译：提供了一种磁记录介质，其中实现了高记录密度，并提高了电磁传感特性和误码率。磁记录介质包括非磁性粉末和粘合剂树脂的非磁性层和在非磁性基材的一个表面上含有铁磁粉末和粘合剂树脂的磁性层，非磁性粉末含有非磁性粉末，平均粒径为80nm以下的磁性无机粉末，基于a的磁性层表面的三维中心面平均粗糙度为100nm以下的区域为3.0nm以下使用原子力显微镜进行测量，相对于平均高度的表面，至少±5.0nm的粗糙度保持的面积份额在100mum 2的区域中为15％以下磁性层表面。

6. 发明授权

US07300715B2 Magnetic recording medium 有权
标题翻译：磁记录介质
公开(公告)号：US07300715B2
公开(公告)日：2007-11-27
申请号：US10874358
申请日：2004-06-24
申请人： Shigeo Kurose , Hiroyuki Tanaka , Kenji Shirasuna
发明人： Shigeo Kurose , Hiroyuki Tanaka , Kenji Shirasuna
IPC分类号： G11B5/66 , G11B5/70
CPC分类号： G11B5/70 , G11B5/7026 , G11B5/70678 , G11B5/714
摘要： A magnetic recording medium is provided, in which a high recording density is realized, and an electromagnetic transducing characteristic and an error rate are improved. The magnetic recording medium includes a non-magnetic layer containing a non-magnetic powder and a binder resin and a magnetic layer containing a ferromagnetic metal powder or hexagonal ferrite magnetic powder and a binder resin on one surface of a non-magnetic support, wherein the ferromagnetic metal powder has an average long axis length of 80 nm or less, or the hexagonal ferrite magnetic powder has an average tabular diameter in the range of from 10 to 40 nm, the three-dimensional center surface average roughness of the magnetic layer surface is 3.0 nm or less in a region of 100 μm2 based on a measurement with an atomic force microscope, and the area share held by asperities of at least ±5.0 nm with reference to the surface at an average height is 15 percent or less in a region of 100 μm2 on the magnetic layer surface.
摘要翻译：提供了一种磁记录介质，其中实现了高记录密度，并提高了电磁传感特性和误码率。磁记录介质包括非磁性粉末和粘合剂树脂的非磁性层和在非磁性载体的一个表面上含有铁磁性金属粉末或六方晶系铁氧体磁性粉末和粘合剂树脂的磁性层，其中，铁磁性金属粉末的平均长轴长度为80nm以下，六方晶系铁氧体磁粉的平均片状直径为10〜40nm，磁性层表面的三维中心面平均粗糙度为基于使用原子力显微镜的测量，在100mum 2的区域中3.0nm以下的面积份额，以平均高度为基准的表面至少为±5.0nm的面积份额在磁性层表面上的100μm2的区域中为15％以下。

7. 发明申请

US20050232130A1 Production method for photoresist master, production method for optical recording medium-producing stamper, stamper, phtoresist master, stamper intermediate element and optical recroding medium 审中-公开
标题翻译：光致抗蚀剂母版的制造方法，光记录介质制造用模具的制造方法，压模，雕刻母版，压模中间元件和光学重绘介质
公开(公告)号：US20050232130A1
公开(公告)日：2005-10-20
申请号：US10515404
申请日：2003-05-30
申请人： Hisaji Oyake , Hiroaki Takahata , Kenji Shirasuna
发明人： Hisaji Oyake , Hiroaki Takahata , Kenji Shirasuna
IPC分类号： G11B7/24 , G03F7/00 , G11B7/26
CPC分类号： G03F7/0017 , G11B7/261
摘要： A stamper (36) used for fabricating an optical recording medium is fabricated by forming a convexo-concave pattern (22) without development of a photoresist layer (16). A fabrication method of the stamper used for fabricating an optical recording medium includes: forming a light-absorbing layer (14) and the photoresist layer (16) on a glass substrate (10); forming the convexo-concave pattern (22) of undeveloped photoresist by irradiating the photoresist layer (16) with laser light from a surface of the photoresist layer that is opposite to the light-absorbing layer (14) so as to remove a part of the photoresist layer by energy of the laser light, thereby fabricating a photoresist master (26); forming a metal thin layer (28) on the convexo-concave pattern (22) in the photoresist master (26); forming a metal layer (30) on the metal thin layer (28) by electro-plating; and forming the stamper (36) by separating the metal thin layer (28) and the metal layer (30) from the photoresist master (26).
摘要翻译：用于制造光学记录介质的压模（36）通过形成不形成光致抗蚀剂层（16）的凹凸图案（22）来制造。用于制造光记录介质的压模的制造方法包括：在玻璃基板（10）上形成光吸收层（14）和光致抗蚀剂层（16）; 通过用来自与光吸收层（14）相对的光致抗蚀剂层的表面的激光照射光致抗蚀剂层（16），形成未显影的光致抗蚀剂的凹凸图案（22），以便去除部分光致抗蚀剂层，由此制造光致抗蚀剂母版（26）; 在所述光致抗蚀剂主体（26）中的所述凹凸图案（22）上形成金属薄层（28）; 通过电镀在金属薄层（28）上形成金属层（30）; 以及通过从金属薄层（28）和金属层（30）与光刻胶母版（26）分离而形成压模（36）。

8. 发明申请

US20050106421A1 Magnetic recording medium 有权
标题翻译：磁记录介质
公开(公告)号：US20050106421A1
公开(公告)日：2005-05-19
申请号：US10874358
申请日：2004-06-24
申请人： Shigeo Kurose , Hiroyuki Tanaka , Kenji Shirasuna
发明人： Shigeo Kurose , Hiroyuki Tanaka , Kenji Shirasuna
IPC分类号： G11B5/70 , G11B5/702 , G11B5/706 , G11B5/714 , G11B5/68
CPC分类号： G11B5/70 , G11B5/7026 , G11B5/70678 , G11B5/714
摘要： A magnetic recording medium is provided, in which a high recording density is realized, and an electromagnetic transducing characteristic and an error rate are improved. The magnetic recording medium includes a non-magnetic layer containing a non-magnetic powder and a binder resin and a magnetic layer containing a ferromagnetic metal powder or hexagonal ferrite magnetic powder and a binder resin on one surface of a non-magnetic support, wherein the ferromagnetic metal powder has an average long axis length of 80 nm or less, or the hexagonal ferrite magnetic powder has an average tabular diameter in the range of from 10 to 40 nm, the three-dimensional center surface average roughness of the magnetic layer surface is 3.0 nm or less in a region of 100 μm2 based on a measurement with an atomic force microscope, and the area share held by asperities of at least ±5.0 nm with reference to the surface at an average height is 15 percent or less in a region of 100 μm2 on the magnetic layer surface.
摘要翻译：提供了一种磁记录介质，其中实现了高记录密度，并提高了电磁传感特性和误码率。磁记录介质包括非磁性粉末和粘合剂树脂的非磁性层和在非磁性载体的一个表面上含有铁磁性金属粉末或六方晶系铁氧体磁性粉末和粘合剂树脂的磁性层，其中，铁磁性金属粉末的平均长轴长度为80nm以下，六方晶系铁氧体磁粉的平均片状直径为10〜40nm，磁性层表面的三维中心面平均粗糙度为基于使用原子力显微镜的测量，在100mum 2的区域中3.0nm以下的面积份额，以平均高度为基准的表面至少为±5.0nm的面积份额在磁性层表面上的100μm2的区域中为15％以下。

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