公开(公告)号：US20050079448A1

公开(公告)日：2005-04-14

申请号：US10925038

申请日：2004-08-25

申请人： Katsuyuki Nakada ,  Mitsuru Takai ,  Kazuhiro Hattori

发明人： Katsuyuki Nakada ,  Mitsuru Takai ,  Kazuhiro Hattori

IPC分类号： G03F7/09 ,  G03F7/00 ,  G03F7/20 ,  G11B5/84 ,  G11B5/855 ,  H01L21/027

CPC分类号： G11B5/855 ,  G03F7/0017

摘要： A material having an amorphous structure is used as a ground material on which a resist layer is applied. After the resist layer is irradiated with an exposure electron beam to form latent images, the latent images are developed so that a predetermined line-and-space pattern is formed in the resist layer.

摘要翻译： 使用具有非晶结构的材料作为施加抗蚀剂层的研磨材料。 在用曝光电子束照射抗蚀剂层以形成潜像之后，潜像显影，使得在抗蚀剂层中形成预定的线间距图案。

公开(公告)号：US5512373A

公开(公告)日：1996-04-30

申请号：US208756

申请日：1994-03-09

申请人： Kunihiro Ueda ,  Koji Kobayashi ,  Mitsuru Takai ,  Masashi Higo

发明人： Kunihiro Ueda ,  Koji Kobayashi ,  Mitsuru Takai ,  Masashi Higo

IPC分类号： G11B5/725 ,  B32B27/00 ,  G11B5/66

CPC分类号： G11B5/725 ,  Y10S428/90 ,  Y10T428/3154 ,  Y10T428/31544

摘要： The problem of rusting relating to a magnetic recording medium composed of a non-magnetic base and a magnetic recording layer of a ferromagnetic metal layer formed thereon is overcome by a magnetic recording medium comprising a non-magnetic support, a ferromagnetic metal thin film as a magnetic recording layer and a lubricating layer, wherein the lubricating layer contains a mixture of a first lubricant having a polar perfluoro radial and a second lubricant expressed by the following formula: ##STR1## where R is a divalent radical having 2 or fewer carbons atoms;D is a polar radical selected from phosphorus-containing radical, hydroxyl, carboxyl and esterified carboxyl;R.sup.1 is selected from F, CF.sub.3 and C.sub.2 F.sub.5 ; andR.sup.2 and R.sub.3 are selected from F, CF.sub.3 and C.sub.2 F.sub.5, CF(CF.sub.3).sub.2 and C(CF.sub.3).sub.3.

摘要翻译： 由形成在其上的强磁性金属层的非磁性基底和磁记录层构成的磁记录介质的生锈问题由包括非磁性载体，强磁性金属薄膜 磁记录层和润滑层，其中润滑层包含具有极性全氟径向的第一润滑剂和由下式表示的第二润滑剂的混合物：其中R是具有2个或更少碳原子的二价基团; D是选自含磷自由基，羟基，羧基和酯化羧基的极性基团; R1选自F，CF3和C2F5; 并且R 2和R 3选自F，CF 3和C 2 F 5，CF（CF 3）2和C（CF 3）3。

公开(公告)号：US07727412B2

公开(公告)日：2010-06-01

申请号：US10542055

申请日：2004-06-11

申请人： Shuichi Okawa ,  Kazuhiro Hattori ,  Mitsuru Takai

发明人： Shuichi Okawa ,  Kazuhiro Hattori ,  Mitsuru Takai

IPC分类号： C23F1/00

CPC分类号： G11B5/855 ,  H01F41/34

摘要： A dry etching method and the like that can process a layer to be processed in a fine pattern to have a peripheral portion of an angular shape, are described. This dry etching method forms a step portion 21 along a peripheral portion of a first mask layer 20 that corresponds to an outline of an etching pattern in such a manner that the step portion 21 projects toward an opposite side to a magnetic thin layer 18 (layer to be processed).

摘要翻译： 对能够以精细图案进行处理的具有角形的周边部分的干法蚀刻方法等进行说明。 这种干蚀刻方法沿着第一掩模层20的周边部分形成台阶部分21，该边缘部分对应于蚀刻图案的轮廓，使得阶梯部分21朝向磁性薄层18的相反侧突出（层 待处理）。

公开(公告)号：US07636215B2

公开(公告)日：2009-12-22

申请号：US11972868

申请日：2008-01-11

申请人： Mitsuru Takai ,  Shuichi Okawa

发明人： Mitsuru Takai ,  Shuichi Okawa

IPC分类号： G11B5/09 ,  G11B5/86

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/855

摘要： On a magnetic recording medium, data track patterns and servo patterns are formed on one surface and another surface of a disk-shaped substrate by patterns including recording regions and non-recording regions. In the data track patterns on the one surface, the non-recording regions are formed at formation positions on the one surface corresponding to formation positions of recording regions in the data track patterns on the other surface and the recording regions are formed at formation positions on the one surface corresponding to formation positions of non-recording regions in the data track patterns on the other surface, and in the servo patterns on the one surface, the non-recording regions are formed at formation positions on the one surface corresponding to formation positions of recording regions in the servo patterns on the other surface and the recording regions are formed at formation positions on the one surface corresponding to formation positions of non-recording regions in the servo patterns on the other surface.

摘要翻译： 在磁记录介质上，通过包括记录区域和非记录区域的图案在盘形基板的一个表面和另一个表面上形成数据轨迹图案和伺服图案。 在一个表面上的数据轨道图案中，非记录区域形成在与其他表面上的数据轨迹图案中的记录区域的形成位置相对应的一个表面上的形成位置处，并且记录区域形成在 所述一个表面对应于另一个表面上的数据轨道图案中的非记录区域的形成位置，并且在一个表面上的伺服图案中，非记录区域形成在对应于形成位置的一个表面上的形成位置 在另一个表面上的伺服图案中的记录区域和记录区域形成在与另一个表面上的伺服图案中的非记录区域的形成位置相对应的一个表面上的形成位置处。

公开(公告)号：US07423841B2

公开(公告)日：2008-09-09

申请号：US10891055

申请日：2004-07-15

申请人： Mitsuru Takai ,  Kazuhiro Hattori

发明人： Mitsuru Takai ,  Kazuhiro Hattori

IPC分类号： G11B5/82 ,  G11B21/21

CPC分类号： B82Y10/00 ,  G11B5/012 ,  G11B5/6082 ,  G11B5/743 ,  G11B5/82 ,  G11B2005/001

摘要： A magnetic recording medium capable of preventing contact with a magnetic head for use in recording or reproduction, during recording or reproducing of record data. The magnetic recording medium has a disk-shaped substrate having a surface formed with an annular data-recording area, an outer area outward of the data-recording area, and an inner area inward of the same. The annular data-recording area has a plurality of tracks separated from each other by concentric separating grooves. At least one of the outer area and the inner is subjected to lift-adjusting treatment for enabling adjustment of lifts applied to the magnetic head. This makes it possible to effectively prevent the magnetic head from being inclined to be brought into contact with the magnetic recording medium.

摘要翻译： 一种磁记录介质，能够在记录或再现记录数据期间防止与用于记录或再现的磁头的接触。 磁记录介质具有一个具有形成有环形数据记录区域，数据记录区域外部的外部区域和其内部的内部区域的盘形基板。 环形数据记录区域具有通过同心分隔槽彼此分离的多个轨迹。 对外部区域和内部中的至少一个进行升降调节处理，以便能够调节施加到磁头的电梯。 这使得可以有效地防止磁头倾斜于与磁记录介质接触。

公开(公告)号：US20070115586A1

公开(公告)日：2007-05-24

申请号：US10565125

申请日：2004-07-20

申请人： Mitsuru Takai ,  Kazuhiro Hattori

发明人： Mitsuru Takai ,  Kazuhiro Hattori

IPC分类号： G11B5/82

CPC分类号： B82Y10/00 ,  B82Y40/00 ,  G03F7/0002 ,  G11B5/855

摘要： There is provided a method of manufacturing a magnetic recording medium with improved manufacturing efficiency. A discrete track magnetic recording medium is manufactured as follows. A resist layer 58a is formed on a preform M in the form of a flat plate where a recording layer 55 is formed on a glass substrate 51 and a preform center of the preform M is specified. The stamper S is placed on the preform M with the specified preform center and the stamper center specified based on a stamper center specifying mark Sm formed on the stamper S aligned when viewed from the thickness direction of the preform M to transfer a concave/convex pattern of the stamper S to the resist layer 58a. The resist layer 58a to which the concave/convex pattern has been transferred is used to form concave parts in the recording layer 55 of the preform M.

摘要翻译： 提供了一种制造具有改进的制造效率的磁记录介质的方法。 如下制造离散轨道磁记录介质。 抗蚀剂层58a形成在平板形式的预成型体M上，其中在玻璃基板51上形成记录层55，并且指定了预制棒M的预制件中心。 将压模S放置在具有指定的预制棒中心的预成型体M上，并且当从预成型体M的厚度方向观察时，基于形成在压模S上的压模中心指定标记Sm指定的压模中心以将凹/凸图案 的压模S. 使用凹凸图案转印到其上的抗蚀剂层58a在预成型体M的记录层55中形成凹部。

公开(公告)号：US20070031705A1

公开(公告)日：2007-02-08

申请号：US10571481

申请日：2004-09-24

申请人： Kazuhiro Hattori ,  Mitsuru Takai

发明人： Kazuhiro Hattori ,  Mitsuru Takai

IPC分类号： G11B5/66 ,  B05D5/12

CPC分类号： G11B5/667 ,  G11B5/7325 ,  G11B5/84 ,  G11B5/851 ,  G11B5/855

摘要： A low cost magnetic recording medium having low surface roughness and a method for manufacturing the magnetic recording medium are provided. A soft magnetic layer 16 has a laminate structure including a first soft magnetic layer 26 on the substrate 12 side and a second soft magnetic layer 28 on the recording layer 20 side. The second soft magnetic layer 28 is formed such that the surface roughness of the surface 28A on the recording layer 20 side of the second soft magnetic layer 28 is less than the surface roughness of the base surface 12A of the substrate 12 and is less than the surface roughness of the surface 26A on the recording layer 20 side of the first soft magnetic layer 26.

摘要翻译： 提供具有低表面粗糙度的低成本磁记录介质和制造磁记录介质的方法。 软磁性层16具有在基板12侧具有第一软磁性体层26和记录层20侧的第二软磁性体层28的叠层结构。 第二软磁性层28形成为使得第二软磁性层28的记录层20侧的表面28A的表面粗糙度小于基板12的基面12A的表面粗糙度，并且更小 比第一软磁性层26的记录层20侧的表面26A的表面粗糙度高。

公开(公告)号：US20060275692A1

公开(公告)日：2006-12-07

申请号：US11445336

申请日：2006-06-02

申请人： Shuichi Okawa ,  Katsuyuki Nakada ,  Kazuhiro Hattori ,  Mitsuru Takai

发明人： Shuichi Okawa ,  Katsuyuki Nakada ,  Kazuhiro Hattori ,  Mitsuru Takai

IPC分类号： G03C5/00

CPC分类号： G11B5/855

摘要： A method for forming a concavo-convex pattern that can form a fine and complex concavo-convex pattern such as that corresponding to servo information with high precision, a method for manufacturing a master disk, a method for manufacturing a stamper, and a method for manufacturing a magnetic recording medium using that method for forming a concavo-convex pattern are provided. A resin layer formed over a resin layer supporting member is processed into an irregular concavo-convex pattern in which a dividing convex portion is formed in a part of concave portions of a predetermined basic concavo-convex pattern and at least some of concave portions are divided as compared with corresponding concave portions of the basic concavo-convex pattern. A recording layer (the resin layer supporting member) is etched based on the resin layer to be processed into a concavo-convex pattern obtained by bringing the irregular concavo-convex pattern close to the basic concavo-convex pattern.

摘要翻译： 一种用于形成能够以高精度形成与伺服信息相对应的精细复杂凹凸图案的凹凸图案的方法，制造母盘的方法，制造压模的方法，以及用于 制造使用这种形成凹凸图案的方法的磁记录介质。 形成在树脂层支撑构件上的树脂层被加工成不规则的凹凸图案，其中在预定的基本凹凸图案的凹部的一部分中形成有分割凸部，并且至少部分凹部被分割 与基本凹凸图案的相应凹部相比较。 基于要加工的树脂层将记录层（树脂层支撑构件）蚀刻成通过使不规则凹凸图案接近基本凹凸图案而获得的凹凸图案。

公开(公告)号：US20050161427A1

公开(公告)日：2005-07-28

申请号：US11038256

申请日：2005-01-21

申请人： Shuichi Okawa ,  Kazuhiro Hattori ,  Mitsuru Takai

发明人： Shuichi Okawa ,  Kazuhiro Hattori ,  Mitsuru Takai

IPC分类号： B08B1/04 ,  B08B3/08 ,  B08B3/12 ,  G11B5/012 ,  G11B5/84 ,  G11B5/855 ,  H01B13/00

CPC分类号： G11B5/855 ,  G11B5/012

摘要： A method of working a workpiece containing magnetic material and a method of manufacturing a magnetic recording medium capable of effectively manufacturing a magnetic recording medium and a magnetic recording and reproducing device, in that a workpiece containing magnetic material is worked by means of dry etching and washed in an alkaline solution, for example, the workpiece is subjected to scrubbing or ultrasonic washing.

摘要翻译： 一种加工含有磁性材料的工件的方法以及一种制造能够有效制造磁记录介质的磁记录介质和磁记录和再现装置的方法，其中含有磁性材料的工件通过干法蚀刻和洗涤 在碱性溶液中，例如，对工件进行擦洗或超声波清洗。

公开(公告)号：US20050138803A1

公开(公告)日：2005-06-30

申请号：US10974834

申请日：2004-10-28

申请人： Shuichi Okawa ,  Kazuhiro Hattori ,  Katsuyuki Nakada ,  Mitsuru Takai

发明人： Shuichi Okawa ,  Kazuhiro Hattori ,  Katsuyuki Nakada ,  Mitsuru Takai

IPC分类号： B29C33/38 ,  B29L17/00 ,  B41C3/06 ,  C23F1/00 ,  C25D1/00 ,  G11B5/855 ,  G11B7/26 ,  B29C35/00 ,  A01J21/00 ,  H05K1/03

CPC分类号： G11B5/855 ,  B41C3/06 ,  G11B7/263 ,  Y10T29/49155

摘要： In a stamper which is used as a mold for pattern transfer, the problem is resolved in such a manner that at least the convex extreme surface of the stamper is formed of a material 110 with no crystalline peak in X-ray diffraction. Such a stamper can be manufactured by the method comprising the steps of forming a convex-concave pattern on a substrate, forming, on the convex-concave pattern, a layer of a material 110 with no crystalline peak in X-ray diffraction, and removing the layer of the material with no crystalline peak in X-ray diffraction from said substrate and convex-concave pattern in intimate contact with the layer.

摘要翻译： 在用作图案转印用模具的压模中，解决了这样的问题，即，在X射线衍射中，至少压模的凸极的表面由材料110形成，没有结晶峰。 这样的压模可以通过以下方法制造：包括以下步骤：在基板上形成凸凹图案，在凸凹图案上形成在X射线衍射中没有结晶峰的材料层110，以及去除 在与所述基底的X射线衍射中没有结晶峰的材料层和与该层紧密接触的凸凹图案。