公开(公告)号：US08250736B2

公开(公告)日：2012-08-28

申请号：US12606723

申请日：2009-10-27

申请人： Masato Fukushima ,  Shinichi Ishibashi ,  Akira Yamane

发明人： Masato Fukushima ,  Shinichi Ishibashi ,  Akira Yamane

IPC分类号： G11B5/127 ,  H04R31/00

CPC分类号： G11B5/722 ,  B82Y10/00 ,  C23C14/165 ,  G11B5/743 ,  G11B5/82 ,  G11B5/855 ,  Y10T29/49025 ,  Y10T29/4903 ,  Y10T29/49032

摘要： A magnetic recording medium which does not easily cause a material containing Fe or Co to corrode is disclosed. The method for manufacturing a magnetic recording medium 122 includes a process of forming a magnetic layer 30 on a non-magnetic substrate 10, a process of forming a recessed area 65 in the magnetic layer 30, a process of forming a corrosion-resistant film 60 to cover an exposure surface 65c of the recessed area 65, and a process of forming a magnetic recording pattern made of the magnetically separated magnetic layer 30 by forming a non-magnetic layer 40 to fill in the recessed area 65.

摘要翻译： 公开了不容易引起含有Fe或Co的材料腐蚀的磁记录介质。 磁记录介质122的制造方法包括在非磁性基板10上形成磁性层30的工序，在磁性层30中形成凹部65的工序，形成耐腐蚀膜60的工序 以覆盖凹陷区域65的曝光表面65c，以及通过形成非磁性层40以填充凹陷区域65来形成由磁分离的磁性层30制成的磁记录图案的过程。

公开(公告)号：US08120869B2

公开(公告)日：2012-02-21

申请号：US12863399

申请日：2009-01-16

申请人： Masato Fukushima

发明人： Masato Fukushima

IPC分类号： G11B5/09 ,  G11B21/02

CPC分类号： G11B5/855 ,  B82Y10/00 ,  G11B5/59688 ,  G11B5/743 ,  G11B5/82

摘要： A magnetic recording medium having a magnetic pattern magnetically partitioning a magnetic layer, formed on a non-magnetic substrate, wherein the magnetic pattern is comprised of magnetic regions and non-magnetic regions surrounding each of the magnetic regions, the non-magnetic regions form depressions, the magnetic pattern comprises data areas and servo information areas, and the difference between the areal ratio of the depressions in the data areas and the areal ratio thereof in the servo information areas is within ±10%. The magnetic areas preferably comprise a magnetic layer having a granular structure comprised of magnetic grains each surrounded by an oxide, or a two-layer structure comprising the granular structure and a non-granular structure formed on the granular structure. The magnetic recording medium exhibits stable head-floating characteristics, and thus, the largest floating height can be reduced, and a high recording density can be obtained.

摘要翻译： 一种具有磁性分隔磁性层的磁性图案的磁记录介质，形成在非磁性基板上，其中磁性图案由围绕每个磁性区域的磁性区域和非磁性区域构成，非磁性区域形成凹陷 磁图包含数据区域和伺服信息区域，伺服信息区域中数据区域的凹陷的面积比和面积比之差在±10％以内。 磁性区域优选地包括具有由氧化物包围的磁性颗粒构成的颗粒结构的磁性层，或包含颗粒结构的二层结构和形成在颗粒结构上的非颗粒结构。 磁记录介质具有稳定的浮头特性，因此可以减小最大浮动高度，并且可以获得高记录密度。

公开(公告)号：US20110109992A1

公开(公告)日：2011-05-12

申请号：US12992831

申请日：2009-05-15

申请人： Masato Fukushima

发明人： Masato Fukushima

IPC分类号： C23C14/04 ,  G11B5/82 ,  G11B5/127

CPC分类号： C23C14/00 ,  G11B5/855

摘要： The present invention relates to a method for manufacturing a magnetic recording medium having magnetically separated magnetic recording patterns, such a magnetic recording medium, and a magnetic recording and reproducing apparatus.The manufacturing method of the present invention includes: forming a continuous recording layer on a nonmagnetic substrate; then forming, on the recording layer, a mask layer including at least one element selected from the element group of Pt, Ru, and Pd in such a manner that part of the recording layer is not masked; and then performing a magnetic characteristic modifying process including exposing the unmasked part of the surface of the recording layer to reactive plasma or reactive ions produced in the reactive plasma to amorphize the part of the recording layer and to modify the magnetic characteristics of the part, so that magnetically separated magnetic recording patterns are formed.

摘要翻译： 本发明涉及一种具有磁分离磁记录图案的磁记录介质的制造方法，例如磁记录介质和磁记录和重放装置。 本发明的制造方法包括：在非磁性基板上形成连续记录层; 然后在记录层上形成掩模层，该掩模层包括选自Pt，Ru和Pd的元素组中的至少一种元素，使得记录层的一部分不被掩蔽; 然后执行磁特性修改处理，包括将记录层表面的未掩模部分暴露于在反应等离子体中产生的反应性等离子体或反应离子以使记录层的一部分非晶化并改变该部件的磁特性，因此 形成磁分离的磁记录图案。

公开(公告)号：US20110032635A1

公开(公告)日：2011-02-10

申请号：US12936146

申请日：2009-04-02

申请人： Masato Fukushima

发明人： Masato Fukushima

IPC分类号： G11B5/82 ,  G11B21/02 ,  H05H1/24 ,  B05D5/12

CPC分类号： G11B5/855 ,  G11B5/72

摘要： A magnetic recording medium of the present invention includes, on a substrate (1), at least a magnetic layer (2) and a carbon protective layer (9) that covers the magnetic layer (2), wherein a convex part (7) serving as a magnetic recording area, and a concave part (6) serving as a boundary area that separates the magnetic recording area are provided on the surface of the magnetic layer (2), and a barrier layer (8) containing mainly Cr or Ti is formed between the concave part (6) serving as the boundary area and the carbon protective layer (9).

摘要翻译： 本发明的磁记录介质在基板（1）上至少包括覆盖磁性层（2）的磁性层（2）和碳保护层（9），其中，服务于凸起部 作为磁记录区域，并且在磁性层（2）的表面上设置有用作分离磁记录区域的边界区域的凹部（6），主要包含Cr或Ti的阻挡层（8） 形成在作为边界区域的凹部（6）和碳保护层（9）之间。

公开(公告)号：US20110014499A1

公开(公告)日：2011-01-20

申请号：US12921051

申请日：2009-03-06

申请人： Hiroshi Uchida ,  Masato Fukushima ,  Yuko Sakata

发明人： Hiroshi Uchida ,  Masato Fukushima ,  Yuko Sakata

IPC分类号： G11B5/706 ,  B29C59/16 ,  B29C35/08

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

摘要： A UV nanoimprint method comprising performing compression molding by pressing a mold having a pattern formed on the surface thereof against a work prepared by forming a thin film composed of an ultraviolet-curable resin on a substrate, and irradiating with ultraviolet light, either concurrently with the compression molding or after the compression molding, thereby transferring the pattern to the thin film, wherein the ultraviolet light is irradiated using an ultraviolet light irradiation apparatus equipped with temperature rise suppression means, and a light source that does not continuously emit heat rays together with ultraviolet light is used as a light source of the ultraviolet light irradiation apparatus.

摘要翻译： 一种UV纳米压印方法，包括通过将形成在其表面上的图案的模具压制在通过在基板上形成由紫外线固化树脂构成的薄膜而制备的工件上进行压缩成型，并与紫外线照射 压缩成型或压缩成型后，将图案转印到薄膜上，其中使用配备有升温抑制装置的紫外线照射装置照射紫外线，以及与紫外线不连续地发射热射线的光源 光被用作紫外线照射装置的光源。

公开(公告)号：US20110013311A1

公开(公告)日：2011-01-20

申请号：US12921095

申请日：2009-03-03

申请人： Masato Fukushima

发明人： Masato Fukushima

IPC分类号： G11B21/02 ,  G11B5/82 ,  G11B5/842 ,  G11B5/84

CPC分类号： G11B5/855 ,  G11B5/8408

摘要： A magnetic recording medium comprising a magnetic layer having a magnetic recording pattern comprising elevations constituting magnetic recording regions and depressions constituting boundary regions for partitioning the magnetic recording regions, and a continuous protective carbon overcoat on the magnetic layer, characterized in that portions of the carbon overcoat located on the magnetic recording regions-constituting elevations of the magnetic layer are thicker than portions of the carbon overcoat located on the boundary regions-constituting depressions of the magnetic layer. The protective carbon overcoat is formed by a CVD method. The boundary regions-constituting depressions are preferably subjected to exposure to plasma, and have modified magnetic characteristics. The magnetic recording regions exhibit high corrosion resistance and the magnetic recording medium has enhanced environmental resistance.

摘要翻译： 一种磁记录介质，包括磁记录图形，磁记录图形包括构成磁记录区的凸起和构成用于分隔磁记录区的边界区的凹陷，以及在磁性层上的连续的保护性碳外涂层，其特征在于， 位于构成磁性层的磁记录区域的磁性层的厚度比形成磁性层的凹部的边界区域上的碳外涂层的厚度大。 保护性碳外涂层通过CVD法形成。 构成边界区域的凹部优选经受等离子体曝光，并且具有改变的磁特性。 磁记录区表现出高耐腐蚀性，并且磁记录介质具有增强的耐环境性。

公开(公告)号：US07727645B2

公开(公告)日：2010-06-01

申请号：US11916988

申请日：2006-06-30

申请人： Masato Fukushima ,  Katsuaki Aida ,  Kenji Shimizu

发明人： Masato Fukushima ,  Katsuaki Aida ,  Kenji Shimizu

IPC分类号： B32B3/10 ,  G11B5/33 ,  C03B23/02

CPC分类号： G11B5/667 ,  G11B5/7315

摘要： The invention provides a magnetic recording medium substrate product which enables enhancement of contact strength between a substrate end surface and a soft magnetic layer, as well as suppression of occurrence of corrosion, a magnetic recording medium including the substrate product, which exhibits no deterioration of electromagnetic conversion characteristics and has excellent durability and a magnetic recording and reproducing apparatus including the magnetic recording medium. The magnetic recording medium substrate product includes a disk-shaped non-magnetic substrate having a circular hole in a center portion thereof, and having a chamfer formed at least one of a portion between a main surface on which a magnetic layer is to be formed and an outer end surface and a portion between the main surface and an inner end surface defining the circular hole, wherein the chamfer has a surface roughness (Ra) falling within a range of 4.0 Å≦Ra≦100 Å, preferably 4.0 Å≦Ra≦50 Å, as measured by means of an AFM.

摘要翻译： 本发明提供了一种磁记录介质基板产品，其能够提高基板端面与软磁性层之间的接触强度，并且抑制腐蚀发生，包括基板产品的磁记录介质不会出现电磁干扰 转换特性并且具有优异的耐久性和包括磁记录介质的磁记录和再现装置。 磁记录介质基板产品包括在其中心部分具有圆形孔的盘形非磁性基板，并且具有倒角，该倒角形成在要形成磁性层的主表面之间的部分中的至少一个和 外表面和主表面和限定圆形孔的内端表面之间的部分，其中所述倒角具有落在范围内的表面粗糙度（Ra）; Ra＆nlE; 100，优选为4.0＆amp; 通过AFM测量。

公开(公告)号：US20090272788A1

公开(公告)日：2009-11-05

申请号：US12292624

申请日：2008-11-21

申请人： Masato Fukushima ,  Kazumi Fukuhara

发明人： Masato Fukushima ,  Kazumi Fukuhara

IPC分类号： B23K20/12

CPC分类号： B23Q3/15706 ,  B23K20/1245 ,  B23K20/1265

摘要： A rotational tool retaining member unit 37 is mounted at one end portion thereof to a FSW gun body 26. The rotational tool retaining member unit 37 is provided at the other end thereof with a fitting hole 61 and a plurality of mounting passages 60 which are formed on a peripheral surface thereof such that the mounting passages 60 open on the opposite side of the one end portion and are spaced apart from each other in the circumferential direction. A mounting member unit 38 has a plurality of pin members 67. The mounting member unit 38 is mounted to the rotational tool retaining member unit 37 in such a manner that the pin members 67 are moved from the openings to the tip end portions of the mounting passages 60 and fitted thereinto. A rotational tool 33 is inserted into the mounting member unit 38. The rotational tool 33 has one end portion thereof a tie-in portion which is fitted to the fitting hole of the retaining means. The mounting member unit 38 is provided with a biasing means 69 for exerting a force on the rotational tool retaining member unit 37 to inhibit the pine members 67 from coming off the tip end portions.

摘要翻译： 旋转工具保持构件单元37的一端部安装在FSW枪主体26上。旋转工具保持构件单元37的另一端设置有形成有安装孔61和多个安装通道60 在其周面上，使得安装通道60在一个端部的相对侧上敞开，并且在圆周方向上彼此间隔开。 安装构件单元38具有多个销构件67.安装构件单元38以这样的方式安装到旋转工具保持构件单元37，使得构件67从开口移动到安装件的顶端部 通道60并安装在其中。 旋转工具33插入到安装构件单元38中。旋转工具33的一个端部具有与保持装置的装配孔配合的搭接部。 安装构件单元38设置有用于在旋转工具保持构件单元37上施加力的偏压装置69，以阻止松木构件67脱离尖端部。

公开(公告)号：US5789455A

公开(公告)日：1998-08-04

申请号：US925145

申请日：1997-09-08

申请人： Kenrou Kitamura ,  Keiichi Ohnishi ,  Masato Fukushima

发明人： Kenrou Kitamura ,  Keiichi Ohnishi ,  Masato Fukushima

IPC分类号： C08G18/08 ,  C08G18/48 ,  C08J9/14 ,  C08G18/00

CPC分类号： C08J9/141 ,  C08G18/14 ,  C08G18/482 ,  C08J9/146 ,  C08G2101/00 ,  C08J2375/04

摘要： A fluorine-containing hydrocarbon composition comprising the following (1) and (2), wherein the proportions of (1) and (2) in the composition are such that (1) is 100 parts by weight, and (2) is from 0.001 to 10 parts by weight: (1) at least one pentafluoropropane selected from 1,1,1,3,3-pentafluoropropane and 1,1,2,2,3-pantafluoroproapne, (2) the following (i) or (ii): (i) a combination of (a) and at least one member selected from the following (b) to (e): (a) a compound having --NO.sub.2, (b) a compound having --CN, (c) a compound having --CONR.sup.1 R.sup.2 wherein each of R.sup.1 and R.sup.2 which are independent of each other, is a hydrogen atom or an alkyl group, (d) a lactone, (e) a quinone, (ii) at least one member selected from the following (f) and (g): (f) a reaction product of a compound having a halogen atom and an epoxy group with an active hydrogen compound, (g) a reaction product of a compound having a halogen atom and a hydroxyl group with an isocyanate compound.

摘要翻译： 包含以下（1）和（2）的含氟烃组合物，其中组合物中（1）和（2）的比例使得（1）为100重量份，和（2）为0.001 至10重量份：（1）至少一种选自1,1,1,3,3-五氟丙烷和1,1,2,2,3-三氟丙胺的五氟丙烷，（2）以下（i）或（ii） ）：（i）（a）和选自以下（b）至（e）中的至少一种的组合：（a）具有-NO 2的化合物，（b）具有-CN的化合物，（c） 具有-CON​​R1R2的化合物，其中R1和R2彼此独立地为氢原子或烷基，（d）内酯，（e）醌，（ii）选自以下的至少一种（ f）和（g）：（f）具有卤素原子和环氧基的化合物与活性氢化合物的反应产物，（g）具有卤素原子和羟基的化合物与异氰酸酯的反应产物 复合。

公开(公告)号：US5731070A

公开(公告)日：1998-03-24

申请号：US575527

申请日：1995-12-20

申请人： Daizo Endo ,  Masato Fukushima ,  Shin-ichi Ogawa

发明人： Daizo Endo ,  Masato Fukushima ,  Shin-ichi Ogawa

IPC分类号： G11B5/73 ,  G11B5/66

CPC分类号： G11B5/7325 ,  Y10S428/90 ,  Y10T428/12465 ,  Y10T428/12674 ,  Y10T428/12875 ,  Y10T428/24975 ,  Y10T428/265 ,  Y10T428/30 ,  Y10T428/31678

摘要： A magnetic recording medium comprised of (i) a non-magnetic substrate such as glass or carbon, (ii) a silicon layer preferably having a thickness of about 20-3,000 angstroms, formed on the substrate, (iii) a layer composed of at least one element of the platinum group of the periodic table or its alloy or carbon, formed on the silicon layer, wherein the platinum group element or alloy is at least partially silicified with silicon diffusing from the adjacent silicon layer, and the carbon is rendered at least partially amorphous with silicon diffusing from the adjacent silicon layer, (iv) an undercoat composed of chromium or its alloy, formed on the layer of a platinum group element or alloy or carbon, (v) a magnetic layer composed of a cobalt alloy, formed on the undercoat, (vi) a protective carbon overcoat formed on the magnetic layer, and (vii) an optional lubricating layer formed on the protective overcoat.

摘要翻译： 一种磁记录介质，包括（i）诸如玻璃或碳之类的非磁性基底，（ii）优选地具有约20-3,000埃厚度的硅层，其形成在所述基底上，（iii）由 形成在硅层上的元素周期表的铂族元素或其合金或碳中的至少一种元素，其中铂族元素或合金至少部分地硅化硅，从邻近的硅层扩散硅，碳 （iv）由铂或其合金形成的底层，其形成在铂族元素或合金或碳的层上，（v）由钴合金构成的磁性层， 形成在底涂层上，（vi）形成在磁性层上的保护性碳外涂层，和（vii）形成在保护性外涂层上的任选的润滑层。