公开(公告)号：US20050045583A1

公开(公告)日：2005-03-03

申请号：US10923728

申请日：2004-08-24

申请人： Minoru Fujita ,  Mitsuru Takai

发明人： Minoru Fujita ,  Mitsuru Takai

IPC分类号： B05D1/42 ,  C03C17/00 ,  G11B5/855 ,  C03C25/68

CPC分类号： C03C17/002 ,  B05D1/42 ,  G11B5/855

摘要： A convex/concave pattern-forming stamp which is capable of making recesses of a convex/concave pattern uniform in depth and preventing deformation and peeling of portions of the convex/concave pattern at the same time. The stamp has on a surface thereof an annular area formed with protrusions for forming a convex/concave pattern in a resin layer on a surface of a disk-shaped substrate by being pressed against the resin layer. Protrusions for dispersing a pressure applied to the resin layer when the stamp is pressed against the resin layer are formed in at least one of an outer area located radially outward of the annular area and an inner area located radially inward of the annular area.

摘要翻译： 能够使凹凸图案的凹部深度均匀的凸凹图案形成印模，同时防止凸凹图案的变形和剥离。 印模在其表面上具有形成有凸起的环形区域，该凸起通过压在树脂层上而在盘形基板的表面上的树脂层中形成凸/凹图案。 当压印在树脂层上时施加在树脂层上的压力的突起形成在位于环形区域径向外侧的外部区域和位于环形区域的径向内侧的内部区域中的至少一个中。

公开(公告)号：US5549979A

公开(公告)日：1996-08-27

申请号：US159422

申请日：1993-11-29

申请人： Shinji Miyazaki ,  Mitsuru Takai ,  Koji Kobayashi

发明人： Shinji Miyazaki ,  Mitsuru Takai ,  Koji Kobayashi

IPC分类号： C23C14/06 ,  G11B5/64 ,  G11B5/66 ,  G11B5/73 ,  G11B5/738 ,  G11B5/84 ,  G11B5/85 ,  H01F10/16 ,  H01F41/20

CPC分类号： G11B5/7325 ,  G11B5/66 ,  G11B5/8404 ,  Y10S428/90 ,  Y10T428/12931 ,  Y10T428/30

摘要： A magnetic recording medium comprising a nonmagnetic base, an SiO.sub.x (x=1.2-1.95) undercoat, an under-layer ferromagnetic metal film consisting of a Co--Ni alloy, an SiO.sub.x (x=1.2-1.95) intermediate layer, an upper-layer ferromagnetic metal protective film consisting of a Co--Ni alloy, a diamond-like carbon protective film, and a lubricant layer, formed in the order of mention, the angles of vapor deposition as measured from lines normal to the upper- and under-layer ferromagnetic metal films being all decreasing toward the upper surfaces. The magnetic recording medium is made by forming an SiO.sub.x (x=1.2-1.95) undercoat by vapor deposition on a flexible nonmagnetic base being fed, forming an under-layer ferromagnetic metal film by vapor deposition of a Co--Ni alloy at a large deposition angle on the supply side and at a small deposition angle on the take up side, rewinding the semi-finished product thus obtained, repeating the foregoing process steps, forming a diamond-like carbon protective film, and further forming a lubricant layer over the diamond-like carbon protective film, all within a vacuum chamber.

摘要翻译： 包含非磁性基底，SiOx（x = 1.2-1.95）底涂层的磁记录介质，由Co-Ni合金，SiOx（x = 1.2-1.95）中间层构成的底层强磁性金属膜， 由Co-Ni合金，类金刚石碳保护膜和润滑剂层构成的层状铁磁性金属保护膜，按顺序形成，从垂直于上，下的线的线测得的蒸镀角度， 层铁磁性金属膜全部向上表面减小。 磁记录介质是通过气相沉积形成SiOx（x = 1.2-1.95）底涂层而制成的，该柔性非磁性基体被馈送，通过Co-Ni合金在大量沉积下气相沉积形成底层强磁性金属膜 在供给侧的角度和在卷绕侧的小沉积角度，重新卷绕由此获得的半成品，重复上述工艺步骤，形成类金刚石碳保护膜，并进一步在金刚石上形成润滑剂层 样的碳保护膜，都在真空室内。

公开(公告)号：US5225234A

公开(公告)日：1993-07-06

申请号：US694913

申请日：1991-05-02

申请人： Mitsuru Takai ,  Koji Kobayashi

发明人： Mitsuru Takai ,  Koji Kobayashi

IPC分类号： C08L67/02 ,  G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/73 ,  G11B5/85

CPC分类号： G11B5/66 ,  G11B5/85 ,  Y10S428/90 ,  Y10S428/928 ,  Y10T428/12465 ,  Y10T428/12861 ,  Y10T428/265

摘要： A magnetic recording medium of the longitudinal recording type is comprised of a magnetic layer on one major surface of a non-magnetic substrate wherein the magnetic layer consists of at least two layers of cobalt-based ferromagnetic metal thin film which are formed by oblique evaporation at an incident angle varying between a maximum .theta.max and a minimum .theta.min. Assuming that the layers disposed close to and remote from the substrate are designated lowermost and uppermost layers, respectively, the lowermost layer of ferromagnetic metal thin film is deposited at a smaller .theta.max value than is the uppermost layer of ferromagnetic metal thin film. The uppermost layer is deposited at a greater .theta.min value than is the lowermost layer. The medium is improved in corrosion resistance and electromagnetic properties properties.

摘要翻译： 纵向记录类型的磁记录介质包括在非磁性基片的一个主表面上的磁性层，其中磁性层由至少两层钴基强磁性金属薄膜组成，这些层是通过在 在最大θmax和最小θmin之间变化的入射角。 假定靠近和远离衬底的层分别被指定为最下层和最上层，则铁磁金属薄膜的最下层以比铁磁性金属薄膜的最上层更小的最大值沉积。 最上层以比最下层更大的θmin值沉积。 该介质的耐腐蚀性和电磁特性得到改善。

公开(公告)号：US07423842B2

公开(公告)日：2008-09-09

申请号：US11061642

申请日：2005-02-22

申请人： Minoru Fujita ,  Mitsuru Takai ,  Kazuya Shimakawa

发明人： Minoru Fujita ,  Mitsuru Takai ,  Kazuya Shimakawa

IPC分类号： G11B5/82 ,  G11B5/64

CPC分类号： G11B5/855 ,  G11B5/65

摘要： A magnetic recording medium including at least a disk substrate 1A, a magnetic recording layer 5 formed with a predetermined concavo-convex pattern on the disk substrate 1A, and a non-magnetic layer 6 filled into concave portions of the concavo-convex pattern, so as to have data track regions 20 and servo pattern regions 21. Due to the existence of concaves and convexes in the surface of each data track region 20, the foregoing problem is solved. On this occasion, arithmetical mean deviation of the assessed profile Ra of the surface of each data track region 20 is preferably not lower than 0.3 nm. The difference in surface level between each concave and each convex existing in the surface of the data track region 20 is preferably not larger than 6 nm.

摘要翻译： 一种磁记录介质，至少包括盘基片1A，在盘基片1A上形成预定的凹凸图形的磁记录层5和填充在凹凸图案的凹部中的非磁性层6 ，以便具有数据轨道区域20和伺服模式区域21。 由于在每个数据轨道区域20的表面中存在凹凸，所以解决了上述问题。 在这种情况下，每个数据轨道区域20的表面的评估曲线Ra的算术平均偏差优选地不低于0.3nm。 存在于数据轨道区域20的表面中的每个凹部和每个凸起之间的表面水平差异优选不大于6nm。

公开(公告)号：US20070199920A1

公开(公告)日：2007-08-30

申请号：US11677321

申请日：2007-02-21

申请人： Minoru Fujita ,  Mitsuru Takai ,  Akimasa Kaizu

发明人： Minoru Fujita ,  Mitsuru Takai ,  Akimasa Kaizu

IPC分类号： B44C1/22

CPC分类号： G11B5/82 ,  G11B5/855

摘要： A concave/convex pattern forming method which makes it possible to easily press a stamper against a resin layer, and sufficiently maintain the shape of the concave/convex pattern after removing the stamper. During a resin layer forming process, the resin layer is formed using a resin material having a glass transition temperature higher than room temperature. During a pressing process, temperature control is performed such that temperatures of a substrate, the resin layer, and the stamper become higher than the glass transition temperature of the resin material by not less than 5° C. During a removing process, temperature control is performed such that temperatures of the substrate, the resin layer, and the stamper become not higher than a temperature 20° C. higher than the glass transition temperature of the resin material, and are equal or approximately equal to the temperatures of the substrate, the resin layer, and the stamper during the pressing process.

摘要翻译： 一种凹凸图案形成方法，其可以容易地将印模压靠在树脂层上，并且在去除压模之后充分保持凹凸图案的形状。 在树脂层形成过程中，使用玻璃化转变温度高于室温的树脂材料形成树脂层。 在压制过程中，进行温度控制，使得基板，树脂层和压模的温度变得高于树脂材料的玻璃化转变温度不低于5℃。在去除过程中，温度控制是 进行使得基板，树脂层和压模的温度变得不高于比树脂材料的玻璃化转变温度高20℃的温度，并且等于或近似等于基板的温度， 树脂层和压制过程中的压模。

公开(公告)号：US07230795B2

公开(公告)日：2007-06-12

申请号：US10808406

申请日：2004-03-25

申请人： Minoru Fujita ,  Shuichi Okawa ,  Mitsuru Takai

发明人： Minoru Fujita ,  Shuichi Okawa ,  Mitsuru Takai

IPC分类号： G11B5/72 ,  G11B5/83

CPC分类号： G11B5/855 ,  G11B5/84

摘要： Provided are a manufacturing method for a magnetic recording medium enabling efficient and reliable manufacturing of a magnetic recording medium with minimal surface roughness and good precision in recording and reading information, and a magnetic recording medium with a high degree of surface recording density and good precision in recording and reading information. The magnetic recording medium is constructed by forming a divided recording layer and the like onto a substantially flat base surface of a dummy, such that the base surface side of the dummy serves as a front surface, and a substrate is also attached, after which the dummy is removed.

摘要翻译： 本发明提供一种磁记录介质的制造方法，其能够高效可靠地制造具有最小表面粗糙度和良好的记录和读取信息精度的磁记录介质，以及具有高表面记录密度和高精度的磁记录介质 记录和阅读信息。 磁记录介质通过在虚拟的基本平坦的基面上形成分割的记录层等而构成，使得虚拟的基面作为前表面，并且还安装基板，之后， 虚拟被删除。

公开(公告)号：US07149338B2

公开(公告)日：2006-12-12

申请号：US10084177

申请日：2002-02-28

申请人： Mitsuru Takai ,  Takahiro Suwa

发明人： Mitsuru Takai ,  Takahiro Suwa

IPC分类号： G06K9/00

CPC分类号： G06T7/0002 ,  G06T7/001 ,  G06T2207/30136

摘要： There are provided a next process-determining method capable of determining a next process to be carried out next objectively and at the same time in a short time period, as well as an inspecting method and apparatus which are capable of carrying out a predetermined inspection as to an object to be inspected according to the next process-determining method. A sample object is digitized to sample data formed by digital data. The sample data is compressed into compressed sample data according to a predetermined data format. There is calculated a difference data amount between a data amount of the compressed sample data and a data amount of reference data formed by digitizing and compressing a reference sample object in the same manner as the sample object is processed. Which of a plurality of predetermined numerical ranges the difference data amount belongs to is identified. A predetermined process is determined which is associated with the identified numerical range in advance as a next process to be carried out next.

公开(公告)号：US20050233176A1

公开(公告)日：2005-10-20

申请号：US11085522

申请日：2005-03-22

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

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

IPC分类号： G11B5/65 ,  G11B5/66 ,  G11B5/72 ,  G11B5/73 ,  G11B5/82 ,  G11B5/855 ,  G11B33/14

CPC分类号： G11B5/855

摘要： In an information recording medium where respective concave parts of a magnetic layer, which is formed on at least one side e of a substrate and in which a predetermined convex/concave pattern has been formed, are filled with non-magnetic material and non-magnetic layers are formed by the non-magnetic material in at least partial regions of respective upper surfaces of respective convex parts of the magnetic layer, the non-magnetic layers are formed so that parts thereof protrude further in a direction in which the convex parts protrude than other parts of the non-magnetic layers.

摘要翻译： 在其中形成在基板的至少一个面e上并且其中形成有预定的凸/凹图案的磁性层的各个凹部填充有非磁性材料和非磁性的信息记录介质中 在磁性层的各个凸部的各个上表面的至少部分区域中，由非磁性材料形成层，非磁性层形成为使得其部分在凸部突出的方向上进一步突出， 其他部分的非磁性层。

公开(公告)号：US20050213239A1

公开(公告)日：2005-09-29

申请号：US11061503

申请日：2005-02-22

申请人： Mikiharu Hibi ,  Mitsuru Takai ,  Kazuya Shimakawa

发明人： Mikiharu Hibi ,  Mitsuru Takai ,  Kazuya Shimakawa

IPC分类号： G11B5/65 ,  G11B5/09 ,  G11B5/82 ,  G11B5/855

CPC分类号： G11B5/855

摘要： A magnetic recording medium including at least a disk substrate 1A, a magnetic recording layer 5 formed with a predetermined concavo-convex pattern on the disk substrate 1A, and a non-magnetic layer 6 filled into concave portions of the concavo-convex pattern, so as to have data track regions 20 and servo pattern regions 21. Due to the existence of concaves and convexes in the surface of each servo pattern region 21, the foregoing problem is solved. On this occasion, arithmetical mean deviation of the assessed profile Ra of the surface of each servo pattern region 21 is preferably not lower than 0.3 nm. The difference in surface level between each concave and each convex existing in the surface of the servo pattern region 21 is preferably not larger than 6 nm.

摘要翻译： 一种磁记录介质，至少包括盘基片1A，在盘基片1A上形成预定的凹凸图形的磁记录层5和填充在凹凸图案的凹部中的非磁性层6 ，以便具有数据轨道区域20和伺服模式区域21。 由于在每个伺服图案区域21的表面中存在凹凸，所以解决了上述问题。 在这种情况下，每个伺服图案区域21的表面的评估轮廓Ra的算术平均偏差优选地不低于0.3nm。 存在于伺服图案区域21的表面中的每个凹部和每个凸起之间的表面水平差异优选不大于6nm。

公开(公告)号：US5525398A

公开(公告)日：1996-06-11

申请号：US854892

申请日：1992-03-20

申请人： Mitsuru Takai ,  Koji Kobayashi ,  Jiro Yoshinari

发明人： Mitsuru Takai ,  Koji Kobayashi ,  Jiro Yoshinari

IPC分类号： G11B5/64 ,  G11B5/65 ,  G11B5/66 ,  G11B5/73 ,  G11B5/733 ,  G11B5/85 ,  B32B3/10 ,  B32B7/02

CPC分类号： G11B5/85 ,  G11B5/66 ,  Y10S428/90 ,  Y10T428/24355 ,  Y10T428/24942 ,  Y10T428/265

摘要： A perpendicular magnetic recording medium has a magnetic layer comprised of two stacked sublayers each in the form of ferromagnetic metal thin film consisting of columnar crystal grains wherein the angle .theta. between the average growth direction of the columnar crystal grains and a normal to the substrate is .theta..gtoreq.45.degree. for the lower sublayer and .theta..ltoreq.30.degree. for the upper sublayer, and the mean maximum diameter of columnar crystal grains of the lower sublayer is not smaller than the mean maximum diameter of columnar crystal grains of the upper sublayer. An apparatus suitable for the evaporation of the magnetic layer is arranged as shown in the Figure. Magnetic flux associated with the upper sublayer finds an escape to the lower sublayer, preventing formation of a closed loop of magnetic flux within the columnar crystal grains of the upper sublayer. The lower sublayer is magnetized, thus contributing to an improvement in reproduction output.

摘要翻译： 垂直磁记录介质具有由两个堆叠的子层组成的磁性层，每个层叠子层由柱状晶粒构成的强磁性金属薄膜形式，其中柱状晶粒的平均生长方向与基板的法线之间的角度θ为θ > / = 45°，下层的θ= 30°，下层的柱状晶粒的平均最大直径不小于上层的柱状晶粒的平均最大直径 。 如图所示，配置适合于磁性层蒸发的装置。 与上部子层相关联的磁通量向下部子层发现逃逸，从而防止在上部子层的柱状晶粒内形成磁通的闭环。 下部子层被磁化，因此有助于再现输出的改善。