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：US20060188751A1

公开(公告)日：2006-08-24

申请号：US11334343

申请日：2006-01-19

申请人： Shuichi Okawa ,  Mitsuru Takai ,  Kazuya Shimakawa

发明人： Shuichi Okawa ,  Mitsuru Takai ,  Kazuya Shimakawa

IPC分类号： G11B5/64

CPC分类号： G11B5/855

摘要： A magnetic recording medium is provided that includes a recording layer having recording elements formed as convex portions and a filling material filled within the concave portions between the recording elements. The medium is highly reliable and has a surface less liable to damages when a magnetic head contacts the surface, so that good recording/reproducing characteristics are ensured. The magnetic recording medium includes a recording layer formed in a predetermined concavo-convex pattern over a substrate and having recording elements formed as convex portions in the concavo-convex pattern and a filling material filled within the concave portions between the recording elements. The filling material is substantially composed of Si and O, and the ratio of the number of O atoms to the number of Si atoms is equal to or more than 1.5 and less than 2.

公开(公告)号：US20060132970A1

公开(公告)日：2006-06-22

申请号：US11297362

申请日：2005-12-09

申请人： Mitsuru Takai ,  Katsumichi Tagami ,  Kazuya Shimakawa

发明人： Mitsuru Takai ,  Katsumichi Tagami ,  Kazuya Shimakawa

IPC分类号： G11B5/127

CPC分类号： G11B5/82 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/743

摘要： A perpendicular magnetic recording/reproducing device that can suppress broadening of recording magnetic fields and that is capable of effective application of magnetic field to a recording target track is provided. The device includes a magnetic recording medium having a soft magnetic layer and a recording layer having a perpendicular magnetic anisotropy formed in this order over a substrate, and a magnetic head. The soft magnetic layer is formed with a concavo-convex pattern in which at least part of regions corresponding to tracks of the recording layer protrudes toward the recording layer, and convex portions are provided with the magnetic anisotropy in the circumferential direction of the tracks. The magnetic head includes a main pole for generating a recording magnetic field, and a return pole to which the magnetic field returns, the main pole and the return pole being arranged side by side in a track width direction.

摘要翻译： 提供了一种能够抑制记录磁场扩大并且能够有效地将磁场施加到记录目标轨迹的垂直磁记录/再现装置。 该装置包括具有软磁性层和在基板上依次形成垂直磁各向异性的记录层的磁记录介质和磁头。 软磁性层形成为凹凸图案，其中对应于记录层的轨道的区域的至少一部分朝向记录层突出，并且凸部在轨道的圆周方向上具有磁各向异性。 磁头包括用于产生记录磁场的主极和磁场返回的返回极，主极和返回极在轨道宽度方向上并排布置。

公开(公告)号：US20050243467A1

公开(公告)日：2005-11-03

申请号：US11115116

申请日：2005-04-27

申请人： Mitsuru Takai ,  Yoshikazu Soeno ,  Katsumichi Tagami ,  Kazuya Shimakawa

发明人： Mitsuru Takai ,  Yoshikazu Soeno ,  Katsumichi Tagami ,  Kazuya Shimakawa

IPC分类号： G11B5/65 ,  G11B5/66 ,  G11B5/82 ,  G11B5/855 ,  G11B7/24 ,  G11B11/105

CPC分类号： G11B11/10584 ,  B82Y10/00 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855

摘要： A magnetic recording medium having high reliability is provided, in which concave portions between recording elements formed as convex portions of a concavo-convex pattern are approximately completely filled with a non-magnetic material. The magnetic recording medium is a plate-like body including: a substrate; a recording layer that is formed in a predetermined concavo-convex pattern over the substrate and includes recording elements for recording information formed as convex portions of the concavo-convex pattern; and the non-magnetic material filling concave portions between the recording elements. Side faces of the recording elements are inclined to face a surface of the plate-like body on a side toward which the recording elements 16 project in the concavo-convex pattern. An inclination angle of the side faces of the recording elements with respect to a direction perpendicular to that surface is smaller than 90° and 5° or more.

摘要翻译： 提供了具有高可靠性的磁记录介质，其中形成为凹凸图案的凸部的记录元件之间的凹部大致完全填充有非磁性材料。 磁记录介质是板状体，包括：基板; 记录层，其形成在所述基板上的预定的凹凸图案中，并且包括用于记录形成为所述凹凸图案的凸部的信息的记录元件; 和非磁性材料填充记录元件之间的凹部。 记录元件的侧面在记录元件16突出于凹凸图案的一侧面对板状体的表面倾斜。 记录元件的侧面相对于与该表面垂直的方向的倾斜角度小于90°和5°以上。

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。

公开(公告)号：US5972435A

公开(公告)日：1999-10-26

申请号：US125744

申请日：1998-08-24

申请人： Mitsuru Takai ,  Shinji Miyazaki ,  Kunihiro Ueda ,  Hiromichi Kanazawa

发明人： Mitsuru Takai ,  Shinji Miyazaki ,  Kunihiro Ueda ,  Hiromichi Kanazawa

IPC分类号： B05D7/24 ,  C08F2/46 ,  C23C14/12 ,  C23C14/56

CPC分类号： B05D1/62 ,  C23C14/12 ,  C23C14/562

摘要： The present invention manifests a highly excellent effect of allowing the plasma polymerization film to be formed stably for a long time while very rarely suffering occurrence of abnormal discharge during the formation of the plasma polymerization film and promoting the improvement of the yield of products because it adopts as the electrode for implementing plasma polymerization that of the electrodes which is located on the side confronting a surface on which the plasma polymerization film is formed, coats this electrode with a polymer material at a covering ratio in the range of 50-100%, and effects the formation of the plasma polymerization film on an elongate substrate under the operating pressure in the range of 10.sup.-3 -1 Torr. Further, the properties of the plasma polymerization film also become highly excellent.

摘要翻译： PCT No.PCT / JP97 / 04866 Sec。 371日期：1998年8月24日 102（e）日期1998年8月24日PCT 1997年12月26日PCT公布。 公开号WO98 / 29578 日期1998年7月9日本发明表现出非常优异的使等离子体聚合膜长时间稳定形成，并且在形成等离子体聚合膜期间极少发生异常放电并促进产率提高的效果 的产品，因为其采用用于实现等离子体聚合的电极，该电极位于与形成等离子体聚合膜的表面相对的一侧，用聚合物材料以覆盖率覆盖在50的范围内 -100％，并且在10-3-1乇范围内的操作压力下，在细长衬底上形成等离子体聚合膜。 此外，等离子体聚合膜的性质也变得非常优异。