公开(公告)号：US07622205B2

公开(公告)日：2009-11-24

申请号：US11104274

申请日：2005-04-12

申请人： Hiroyuki Uwazumi ,  Youichi Tei ,  Kengo Kainuma ,  Kazuhito Higuchi ,  Akira Iso ,  Hajime Kurihara

发明人： Hiroyuki Uwazumi ,  Youichi Tei ,  Kengo Kainuma ,  Kazuhito Higuchi ,  Akira Iso ,  Hajime Kurihara

IPC分类号： G11B5/64 ,  G11B5/00 ,  G11B15/70

CPC分类号： G11B5/667 ,  G11B5/7315

摘要： A disk substrate for a perpendicular magnetic recording medium is, disclosed. The substrate exhibits sufficient productivity, serves the function of a soft magnetic backing layer of the perpendicular magnetic recording medium, and scarcely generates noise. A perpendicular magnetic recording medium using such a substrate also is disclosed. The disk substrate comprises at least a soft magnetic underlayer formed on a nonmagnetic base plate by means of an electroless plating method. The thermal expansion coefficient of the soft magnetic underlayer is larger than a thermal expansion coefficient of the nonmagnetic disk-shaped base plate. A saturation magnetostriction constant λs satisfies a relation λs≧−1×10−5.

摘要翻译： 公开了一种用于垂直磁记录介质的盘基片。 基板表现出足够的生产率，起到垂直磁记录介质的软磁背衬层的功能，并且几乎不产生噪声。 还公开了使用这种基板的垂直磁记录介质。 盘状基板通过无电镀法至少包含在非磁性基板上形成的软磁性底层。 软磁性底层的热膨胀系数大于非磁性盘状基板的热膨胀系数。 饱和磁致伸缩常数lambdas满足关系lambdas> = - 1×10-5。

公开(公告)号：US07514118B2

公开(公告)日：2009-04-07

申请号：US11288451

申请日：2005-11-29

申请人： Akira Iso ,  Youichi Tei

发明人： Akira Iso ,  Youichi Tei

IPC分类号： B05D5/12

CPC分类号： C23C18/1893 ,  C03C17/38 ,  C03C2217/283 ,  C03C2218/31 ,  C23C18/50 ,  G11B5/8404 ,  G11B5/858

摘要： A method of plating on a glass substrate allowing an electroless plating film with good adhesiveness to be formed by chemically bonding a silane coupling agent in a state of simple adhesion or hydrogen bond to the surface of the glass substrate through dehydration condensation reaction, and a method of manufacturing a magnetic recording medium using the plating method. In the plating method, electroless plating is performed on a glass substrate after sequentially conducting at least the adhesion layer formation that forms an adhesion layer using a silane coupling agent solution, catalyst layer formation, a catalyst activation, and a drying that chemically bonds the silane coupling agent in the adhesion layer to the surface of the glass substrate.

摘要翻译： 通过在玻璃基板表面通过脱水缩合反应将化学键合硅烷偶联剂与玻璃基板的表面进行化学键合而形成具有良好粘合性的化学镀膜的玻璃基板上的电镀方法， 使用电镀方法制造磁记录介质。 在电镀方法中，在使用硅烷偶联剂溶液，催化剂层形成，催化剂活化和使硅烷化学键合的干燥至少依次导电至少形成粘附层的粘合层后，在玻璃基板上进行化学镀 粘合层中的偶联剂到玻璃基材的表面。

公开(公告)号：US06645634B1

公开(公告)日：2003-11-11

申请号：US09596529

申请日：2000-06-19

申请人： Shinji Shirai ,  Youichi Tei

发明人： Shinji Shirai ,  Youichi Tei

IPC分类号： G11B5725

CPC分类号： G11B5/725 ,  G11B5/8408 ,  Y10T428/3154

摘要： To avoid troubles associated with high-density recording and fast transfer rate, such as decomposition of lubricant involved in a low floating height magnetic head and migration of lubricants involved in high speed rotation of a magnetic recording medium, and to provide a magnetic recording medium which achieves stable resistance to environment and stable lubricating characteristics, a magnetic recording medium includes a base body and the layers formed on the base body, including a non-magnetic metal underlayer, a magnetic layer, a protective layer, and a lubricant layer. The lubricant of the lubricant layer includes a perfluoropolyether liquid lubricant having an alcohol end group(s) and a perfluoropolyether liquid lubricant having an amine end group(s) of tertiary amine structure.

摘要翻译： 为了避免与高密度记录和快速传送速率相关的麻烦，例如涉及低浮动高度磁头的润滑剂的分解和涉及磁记录介质的高速旋转的润滑剂的迁移，并且提供磁记录介质， 具有稳定的耐环境性和稳定的润滑特性，磁记录介质包括基体和形成在基体上的层，包括非磁性金属底层，磁性层，保护层和润滑剂层。 润滑剂层的润滑剂包括具有醇端基的全氟聚醚液体润滑剂和具有叔胺结构的胺端基的全氟聚醚液体润滑剂。

公开(公告)号：US5736282A

公开(公告)日：1998-04-07

申请号：US645322

申请日：1996-05-13

申请人： Shinichi Tamura ,  Youichi Tei ,  Naoki Itoh ,  Kazumi Egota ,  Kenichi Ohkura

发明人： Shinichi Tamura ,  Youichi Tei ,  Naoki Itoh ,  Kazumi Egota ,  Kenichi Ohkura

IPC分类号： C07D487/22 ,  C09B67/12 ,  C09B67/50 ,  G03G5/06 ,  G03G5/14 ,  G03G5/047

CPC分类号： G03G5/0696 ,  C09B67/0016 ,  C09B67/0026

摘要： An electrophotographic photoreceptor includes a conductive substrate and a photosensitive layer including a charge generation material and a charge transport material. The charge generation material is a titanyloxyphthalocyanine crystal having a maximum diffraction intensity observed at Bragg angle (2.theta.) of 9.6.degree..+-.0.2.degree. and clear peaks of diffraction intensity observed at 7.22.degree..+-.0.2.degree., 9.60.degree..+-.0.2.degree., 11.60.degree..+-.0.2.degree., 13.40.degree..+-.0.2.degree., 14.88.degree..+-.0.2.degree., 18.34.degree..+-.0.2.degree., 23.62.degree..+-.0.2.degree., 24.14.degree..+-.0.2.degree., and 27.32.degree..+-.0.2.degree., respectively, in a X-ray diffraction spectrum obtained by performing a X-ray diffraction method using CuK.alpha. as a source of radiation, and having a lattice constant of: a=16.3058 .ANG., b=23.078 .ANG., and c=8.7115 .ANG., .alpha.=101.352.degree., .beta.=23.078.degree., and .gamma.=117.530.degree., with an allowable error of .+-.1%.

摘要翻译： 电子照相感光体包括导电基底和包含电荷产生材料和电荷传输材料的感光层。 电荷产生材料是在布拉格角（2θ）为9.6°+/- 0.2°处观察到的最大衍射强度的钛氧基氧酞菁晶体，在7.22°±0.2°，9.60°+/- 0.2°，11.60°±0.2°，13.40°±0.2°，14.88°±0.2°，18.34°±0.2°，23.62°±0.2°，24.14°±0.2° 和27.32°±0.2°，在通过使用CuKα作为辐射源进行X射线衍射方法获得的X射线衍射光谱中，并且具有如下的晶格常数：a = 16.3058 ANGSTROM，b = 23.078 ANGSTROM，c = 8.7115 ANGSTROM，α= 101.352°，β= 23.078°，γ= 117.530°，允许误差为+/- 1％。

公开(公告)号：US20060228493A1

公开(公告)日：2006-10-12

申请号：US11374374

申请日：2006-03-13

申请人： Akira Iso ,  Youichi Tei ,  Hajime Kurihara

发明人： Akira Iso ,  Youichi Tei ,  Hajime Kurihara

IPC分类号： B05D1/18

CPC分类号： C03C23/002 ,  C03C15/00 ,  C03C17/38 ,  C03C2218/115 ,  C03C2218/31 ,  C23C18/1868 ,  C23C18/1893 ,  C23C18/31 ,  C23C18/50 ,  G11B5/8404 ,  G11B5/858

摘要： A plating method on a glass base plate is disclosed. The method allows an electroless plating film to be formed on a base plate composed of a glass material with excellent adhesivity through a process that removes alkaline and alkaline earth metals on the surface of the base plate. Also disclosed is a method of manufacturing a magnetic recording medium employing the method of plating on a glass base plate. Before forming a plating film in a step of electroless plating, a series of surface treatments are conducted on the surface of the base plate composed of a glass material. The series of surface treatments comprises at least an ultraviolet light irradiation, an etching treatment, an adhesion layer formation treatment, a catalyst layer formation treatment, and a catalyst activation treatment.

摘要翻译： 公开了一种玻璃基板上的电镀方法。 该方法允许通过去除基板表面上的碱土金属和碱土金属的方法，在由具有优异粘合性的玻璃材料构成的基板上形成化学镀膜。 还公开了使用在玻璃基板上电镀的方法制造磁记录介质的方法。 在化学镀的工序中形成镀膜之前，在由玻璃材料构成的基板的表面进行一系列的表面处理。 一系列表面处理至少包括紫外光照射，蚀刻处理，粘合层形成处理，催化剂层形成处理和催化剂活化处理。

公开(公告)号：US20060134325A1

公开(公告)日：2006-06-22

申请号：US11288451

申请日：2005-11-29

申请人： Akira Iso ,  Youichi Tei

发明人： Akira Iso ,  Youichi Tei

IPC分类号： B05D5/06 ,  B05D3/04

CPC分类号： C23C18/1893 ,  C03C17/38 ,  C03C2217/283 ,  C03C2218/31 ,  C23C18/50 ,  G11B5/8404 ,  G11B5/858

摘要： A method of plating on a glass substrate allowing an electroless plating film with good adhesiveness to be formed by chemically bonding a silane coupling agent in a state of simple adhesion or hydrogen bond to the surface of the glass substrate through dehydration condensation reaction, and a method of manufacturing a magnetic recording medium using the plating method. In the plating method, electroless plating is performed on a glass substrate after sequentially conducting at least the adhesion layer formation that forms an adhesion layer using a silane coupling agent solution, catalyst layer formation, a catalyst activation, and a drying that chemically bonds the silane coupling agent in the adhesion layer to the surface of the glass substrate.

摘要翻译： 通过在玻璃基板表面通过脱水缩合反应将化学键合硅烷偶联剂与玻璃基板的表面进行化学键合而形成具有良好粘合性的化学镀膜的玻璃基板上的电镀方法， 使用电镀方法制造磁记录介质。 在电镀方法中，在使用硅烷偶联剂溶液，催化剂层形成，催化剂活化和使硅烷化学键合的干燥至少依次导电至少形成粘附层的粘合层后，在玻璃基板上进行化学镀 粘合层中的偶联剂到玻璃基材的表面。

公开(公告)号：US20050153481A1

公开(公告)日：2005-07-14

申请号：US11015345

申请日：2004-12-17

申请人： Youichi Tei ,  Kengo Kainuma ,  Teruhisa Yokosawa

发明人： Youichi Tei ,  Kengo Kainuma ,  Teruhisa Yokosawa

IPC分类号： C23C18/16 ,  C23C18/18 ,  C23C18/32 ,  G11B5/00 ,  G11B5/73 ,  G11B5/84 ,  H01L21/44 ,  H01L21/48 ,  H01L21/50

CPC分类号： G11B5/7315 ,  C23C18/1692 ,  C23C18/1844 ,  C23C18/32 ,  G11B5/8404

摘要： A glass substrate is pretreated before forming a Ni—P plating layer thereon. The pretreating process includes degreasing and glass activation treatments of the surface of the nonmagnetic substrate, applying a nickel chelate agent or a nickel soap agent on the substrate surface, a metallizing baking treatment of the nickel-containing agent, an activation treatment of the metallized nickel film to form a nickel adhesion layer, a treatment to form a palladium catalyst layer on the nickel adhesion layer, forming the Ni—P plating layer on the palladium catalyst layer by electroless plating in the range of phosphorus concentration of 1 to 13 wt %, and heat treating the Ni—P plating layer.

摘要翻译： 在其上形成Ni-P镀层之前对玻璃基板进行预处理。 预处理方法包括非磁性基材的表面的脱脂和玻璃活化处理，在基材表面上施加镍螯合剂或镍皂剂，对含镍试剂进行金属化烘烤处理，金属化镍的活化处理 膜形成镍粘合层，在镍粘合层上形成钯催化剂层的处理，在磷浓度为1〜13重量％的范围内通过化学镀在钯催化剂层上形成Ni-P镀层， 并对Ni-P镀层进行热处理。

公开(公告)号：US20080213626A1

公开(公告)日：2008-09-04

申请号：US11971373

申请日：2008-01-09

申请人： Ryoji KOBAYASHI ,  Youichi TEI ,  Kouichi TSUDA

发明人： Ryoji KOBAYASHI ,  Youichi TEI ,  Kouichi TSUDA

IPC分类号： G11B5/33 ,  B44C1/22

CPC分类号： C03C3/083 ,  C03C15/02 ,  C03C21/002 ,  G11B5/7315 ,  G11B5/8404

摘要： A method of manufacture of a glass substrate for a magnetic recording medium, which has both high substrate strength and low alkaline elution, includes an etching process of etching the inner-edge face of a donut-shaped glass substrate having an aluminosilicate composition, formed by removing the center portion of a die-molded disc-shaped glass substrate, and an alkali sealing process of performing alkali sealing treatment by proton substitution of alkali ions in the surface layer of the etched donut-shaped glass substrate. The process is used to manufacture a magnetic recording medium incorporating a glass substrate having a total alkaline elution amount of less than 3.1 μg/disk, wherein the magnetic recording medium has a transverse rupture strength greater than 132 N.

摘要翻译： 具有高基板强度和低碱性洗脱性的磁记录介质用玻璃基板的制造方法包括蚀刻具有硅铝酸盐组合物的环状玻璃基板的内缘面的蚀刻工序，该蚀刻工艺由 去除模制的圆盘形玻璃基板的中心部分，以及通过在蚀刻的环形玻璃基板的表面层中碱离子的质子取代进行碱封合处理的碱封闭处理。 该方法用于制造具有总碱性洗脱量小于3.1mug /盘的玻璃基板的磁记录介质，其中磁记录介质具有大于132N的横向断裂强度。

公开(公告)号：US20060210837A1

公开(公告)日：2006-09-21

申请号：US11374669

申请日：2006-03-13

申请人： Hajime Kurihara ,  Youichi Tei ,  Akira Iso

发明人： Hajime Kurihara ,  Youichi Tei ,  Akira Iso

IPC分类号： G11B5/66 ,  G11B5/706

CPC分类号： G11B5/667 ,  C23C18/1651 ,  C23C18/1692 ,  C23C18/1893 ,  C23C18/50 ,  G11B5/7325 ,  G11B5/7379 ,  G11B5/8404

摘要： A method of plating on a glass base plate is disclosed. The method allows a plating film to be formed on a base plate composed of a glass material with excellent adhesivity and homogeneity by means of an electroless plating method, even to a thickness of 1 μm or more. Before forming the plating film by electroless plating, a series of surface treatments are conducted on the surface of the base plate composed of a glass material. The surface treatments comprises at least a glass activation treatment, a silane coupling agent treatment, a palladium catalyst treatment, a palladium bonding treatment, ab electroless plating to form a preliminary plating film having a thickness in the range of 0.02 μm to 0.5 μm, and an annealing at a temperature in the range of 200° C. to 350° C.

摘要翻译： 公开了一种在玻璃底板上镀覆的方法。 该方法允许通过无电镀法在具有优异的粘附性和均匀性的玻璃材料的基板上形成镀膜，甚至厚度为1μm或更大。 在通过无电镀形成电镀膜之前，在由玻璃材料构成的基板的表面上进行一系列表面处理。 表面处理包括至少玻璃活化处理，硅烷偶联剂处理，钯催化剂处理，钯结合处理，无电镀以形成厚度在0.02μm至0.5μm的范围内的预镀膜，以及 在200℃至350℃的温度下进行退火。

公开(公告)号：US20050287304A1

公开(公告)日：2005-12-29

申请号：US11149430

申请日：2005-06-10

申请人： Akira Iso ,  Youichi Tei ,  Kazuhito Higuchi

发明人： Akira Iso ,  Youichi Tei ,  Kazuhito Higuchi

IPC分类号： C23C18/28 ,  B05D1/18 ,  C23C18/18 ,  G11B5/73 ,  G11B5/738 ,  G11B5/82 ,  G11B5/84 ,  G11B5/858

CPC分类号： C23C18/1893 ,  C23C18/1865 ,  C23C18/1889 ,  G11B5/8404

摘要： The method of increasing adhesion between a substrate and an electroless plating layer, and treating the substrate for electroless plating, includes removing any excess alkali from the surface of the substrate, etching the surface of the glass substrate, forming an adhesion layer, forming a catalyst layer on the adhesion layer, and forming an electroless plating film on the catalyst layer.

摘要翻译： 提高基板与化学镀层之间的粘合力的方法以及对基板进行化学镀处理的方法包括从基板的表面除去过量的碱，蚀刻玻璃基板的表面，形成粘合层，形成催化剂 层，并且在催化剂层上形成化学镀膜。