公开(公告)号：US20060153975A1

公开(公告)日：2006-07-13

申请号：US11371912

申请日：2006-03-10

Applicant: Toshinori Ono ,  Yuuichi Kokaku ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

Inventor： Toshinori Ono ,  Yuuichi Kokaku ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

IPC: B05D5/12

CPC classification number: G11B5/8408

Abstract: This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic layer on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective layer mainly composed of carbon for protecting the magnetic layer exceeds 20%. The bonding force between the protective layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.

Abstract translation: 该磁记录介质的特征在于，在通过插入至少下层在非磁性基板上具有磁性层的磁记录介质中，主要由主要构成的金刚石状碳保护层中的每100个碳原子的官能团的比例 用于保护磁性层的碳超过20％。 磁记录介质的保护层和润滑层之间的结合力增加，使得在高速旋转的情况下，不会引起润滑层的减少，从而提供具有高可靠性的磁记录装置。

公开(公告)号：US07045175B2

公开(公告)日：2006-05-16

申请号：US10377678

申请日：2003-02-28

Applicant: Shigehiko Fujimaki ,  Toru Yatsue ,  Yuuichi Kokaku ,  Toshinori Ono

Inventor： Shigehiko Fujimaki ,  Toru Yatsue ,  Yuuichi Kokaku ,  Toshinori Ono

IPC: B05D3/14

CPC classification number: G11B5/8408 ,  G11B5/72

Abstract: A method for manufacturing a magnetic recording medium includes forming a first protective layer of first material over a magnetic film provided on a substrate. The first protective layer has a thickness of about 0.2 nm to about 2 nm. A second protective layer of second material is formed over the first protective layer by driving ions of the second material into the first protective layer. The first protective layer is configured to prevent the ions of the second material from penetrating into the magnetic film.

公开(公告)号：US07551398B2

公开(公告)日：2009-06-23

申请号：US11245481

申请日：2005-10-05

Applicant: Shigehiko Fujimaki ,  Hiroshi Inaba ,  Hiroshi Ishizaki

Inventor： Shigehiko Fujimaki ,  Hiroshi Inaba ,  Hiroshi Ishizaki

IPC: G11B5/60

CPC classification number: G11B5/6005 ,  G11B5/3106 ,  G11B5/40

Abstract: To promote reduction in thickness of an air bearing surface protective film of a magnetic head, a magnetic head having an air bearing surface protective film consisting only of a thin carbon film while excluding formation of a dead layer by ion incidence as less as possible to the read/write device, and a manufacturing method therefore, are provided. In an embodiment, an air bearing surface protective film of a magnetic head comprises a thin carbon film, in which the mass density a lowermost layer of the air bearing surface protective film on the side of a magnetic device is made lower compared with a thin carbon film constituting other adjacent layers. Further, the manufacturing method comprises deposition under the control of time for the incident angle of ion flow to a substrate to be processed and deposition under the control of time for the ion flow energy to a substrate to be processed.

Abstract translation: 为了促进磁头的空气轴承表面保护膜的厚度的减小，磁头具有仅由薄碳膜构成的空气轴承表面保护膜，同时排除通过离子入射形成的死层尽可能少地 读/写装置及其制造方法。 在一个实施例中，磁头的空气轴承表面保护膜包括薄碳膜，其中与磁性元件一侧的空气轴承表面保护膜的最下层的质量密度比薄碳 构成其他相邻层的膜。 此外，制造方法包括在时间控制下进行离子流入待处理基板的入射角的沉积，并且在时间控制下进行离子流向待处理基板的能量的沉积。

公开(公告)号：US07147943B2

公开(公告)日：2006-12-12

申请号：US10429704

申请日：2003-05-06

Applicant: Toshinori Ono ,  Yuuichi Kokaku ,  Hiroyuki Matsumoto ,  Hiroshi Tani ,  Mitsuhiro Shoda ,  Tomonori Kozaki ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

Inventor： Toshinori Ono ,  Yuuichi Kokaku ,  Hiroyuki Matsumoto ,  Hiroshi Tani ,  Mitsuhiro Shoda ,  Tomonori Kozaki ,  Hiroshi Ishikawa ,  Toru Yatsue ,  Yoshinori Honda ,  Shigehiko Fujimaki

IPC: G11B5/66 ,  G11B5/70

CPC classification number: G11B5/8408 ,  G11B5/72

Abstract: This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic layer on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective layer mainly composed of carbon for protecting the magnetic layer exceeds 20%. The bonding force between the protective layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.

公开(公告)号：US5409738A

公开(公告)日：1995-04-25

申请号：US216287

申请日：1994-03-23

Applicant: Satoshi Matsunuma ,  Yuichi Kokaku ,  Makoto Kitoh ,  Shigehiko Fujimaki

Inventor： Satoshi Matsunuma ,  Yuichi Kokaku ,  Makoto Kitoh ,  Shigehiko Fujimaki

IPC: C10M107/38 ,  B05D5/08 ,  C08G65/00 ,  C08G65/02 ,  C08G65/04 ,  C10M177/00 ,  C10N30/06 ,  C10N30/12 ,  C10N40/18 ,  C10N50/08 ,  C10N70/00 ,  G11B5/64 ,  G11B5/71 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/738 ,  G11B5/84 ,  B05D5/12

CPC classification number: B05D5/08 ,  C10M107/38 ,  G11B5/725 ,  C10M2213/00 ,  C10M2213/04 ,  C10M2213/06 ,  C10N2240/20 ,  C10N2240/201 ,  C10N2240/202 ,  C10N2240/203 ,  C10N2240/204 ,  C10N2240/205

Abstract: Disclosed are a recording medium comprising a substrate, a thin film for recording formed on at least one side of the substrate, a protective layer formed on the thin film, and a lubricative film formed on the protective layer, the lubricative film comprising an oxidative polymerization product having main molecular chains chemically bonded to the protective film; and a process for producing the recording medium. This recording medium is excellent in lubricity and durability, and the layers formed thereon can be very thin.

Abstract translation: 公开了一种记录介质，包括基板，形成在基板的至少一侧上的用于记录的薄膜，形成在薄膜上的保护层，以及形成在保护层上的润滑膜，该润滑膜包括氧化聚合 具有化学键合到保护膜的主分子链的产物; 以及用于制造记录介质的方法。 该记录介质的润滑性和耐久性优异，并且其上形成的层可以非常薄。

公开(公告)号：US5104709A

公开(公告)日：1992-04-14

申请号：US540187

申请日：1990-06-19

Applicant: Yuichi Kokaku ,  Satoshi Matsunuma ,  Shigehiko Fujimaki ,  Makoto Kitoh ,  Kenji Furusawa

Inventor： Yuichi Kokaku ,  Satoshi Matsunuma ,  Shigehiko Fujimaki ,  Makoto Kitoh ,  Kenji Furusawa

IPC: G11B5/64 ,  G11B5/72 ,  G11B5/725 ,  G11B5/73 ,  G11B5/738 ,  G11B5/84

CPC classification number: G11B5/72 ,  G11B5/725 ,  Y10S428/90 ,  Y10T428/30

Abstract: The magnetic recording medium of the present invention comprises(a) a non-magnetic substrate,(b) a magnetic recording layer containing at least one ferromagnetic substance on at least one side of the substrate,(c) a protective layer the magnetic recording layer, and(d) a lubricant layer on the protective layer, wherein an adhesion-strengthening substance which is at least one member selected from the group consisting of metals and metal compounds is distributed substantially uniformly on the layer (c) at the interface between the layer (c) and the layer (d) so as not to cover the whole surface of the layer (c) and so as to contact also with the layer (d).

Abstract translation: 本发明的磁记录介质包括（a）非磁性基片，（b）在基片的至少一侧含有至少一种铁磁物质的磁记录层，（c）保护层，该磁记录层 和（d）保护层上的润滑剂层，其中，选自金属和金属化合物中的至少一种的粘合强化物质基本均匀地分布在层（c）上的界面处 层（c）和层（d），以便不覆盖层（c）的整个表面，并且也与层（d）接触。

公开(公告)号：US20060083952A1

公开(公告)日：2006-04-20

申请号：US11254073

申请日：2005-10-18

Applicant: Naoto Endou ,  Shigehiko Fujimaki ,  Hiroyuki Matsumoto ,  Toshinori Ono

Inventor： Naoto Endou ,  Shigehiko Fujimaki ,  Hiroyuki Matsumoto ,  Toshinori Ono

IPC: G11B5/65 ,  C23C14/32 ,  C23C14/00

CPC classification number: G11B5/667 ,  C23C16/26 ,  G11B5/656 ,  G11B5/7325 ,  G11B5/8408 ,  Y10S427/106

Abstract: Embodiments of the invention provide a magnetic recording medium superior in terms magnetic head flying performance, abrasion resistant reliability and corrosion resistance and a method for manufacturing the same. In one embodiment, method for manufacturing a magnetic recording medium, comprising forming at least an adhesion layer, a soft magnetic layer, a granular magnetic film and a diamond-like carbon (DLC) protective film on a nonmagnetic substrate. While the DLC protective film layer to protect the granular magnetic layer of the magnetic recording medium is formed, hydrocarbon gas is mixed with hydrogen gas and a bias voltage is applied to the substrate.

Abstract translation: 本发明的实施例提供了磁头飞行性能，耐磨性可靠性和耐腐蚀性优异的磁记录介质及其制造方法。 在一个实施方案中，制造磁记录介质的方法包括至少在非磁性基底上形成粘合层，软磁层，粒状磁性膜和类金刚石碳（DLC）保护膜。 虽然形成了用于保护磁记录介质的粒状磁性层的DLC保护膜层，但是烃气体与氢气混合并且向基板施加偏置电压。

公开(公告)号：US20060072246A1

公开(公告)日：2006-04-06

申请号：US11245481

申请日：2005-10-05

Applicant: Shigehiko Fujimaki ,  Hiroshi Inaba ,  Hiroshi Ishizaki

Inventor： Shigehiko Fujimaki ,  Hiroshi Inaba ,  Hiroshi Ishizaki

IPC: G11B5/60

CPC classification number: G11B5/6005 ,  G11B5/3106 ,  G11B5/40

Abstract: To promote reduction in thickness of an air bearing surface protective film of a magnetic head, a magnetic head having an air bearing surface protective film consisting only of a thin carbon film while excluding formation of a dead layer by ion incidence as less as possible to the read/write device, and a manufacturing method therefore, are provided. In an embodiment, an air bearing surface protective film of a magnetic head comprises a thin carbon film, in which the mass density a lowermost layer of the air bearing surface protective film on the side of a magnetic device is made lower compared with a thin carbon film constituting other adjacent layers. Further, the manufacturing method comprises deposition under the control of time for the incident angle of ion flow to a substrate to be processed and deposition under the control of time for the ion flow energy to a substrate to be processed

Abstract translation: 为了促进磁头的空气轴承表面保护膜的厚度的减小，磁头具有仅由薄碳膜构成的空气轴承表面保护膜，同时排除通过离子入射形成的死层尽可能少地 读/写装置及其制造方法。 在一个实施例中，磁头的空气轴承表面保护膜包括薄碳膜，其中与磁性元件一侧的空气轴承表面保护膜的最下层的质量密度比薄碳 构成其他相邻层的膜。 此外，制造方法包括在时间控制下进行离子流入待处理基板的入射角的沉积，并且在时间控制下进行离子流动能量到待处理基板的沉积

公开(公告)号：US06949301B2

公开(公告)日：2005-09-27

申请号：US09784952

申请日：2001-02-16

Applicant: Toshinori Ono ,  Yuuichi Kokaku ,  Yoshinori Honda ,  Shigehiko Fujimaki ,  Tooru Yatsue

Inventor： Toshinori Ono ,  Yuuichi Kokaku ,  Yoshinori Honda ,  Shigehiko Fujimaki ,  Tooru Yatsue

IPC: C23C14/06 ,  C23C16/27 ,  G11B5/72 ,  G11B5/725 ,  G11B5/84

CPC classification number: G11B5/8408 ,  G11B5/72

Abstract: This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic film on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective coating mainly composed of carbon for protecting the magnetic film exceeds 20%. The bonding force between the protective coating layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.

公开(公告)号：US20050106314A1

公开(公告)日：2005-05-19

申请号：US10965764

申请日：2004-10-18

Applicant: Toshinori Ono ,  Yuuichi Kokaku ,  Yoshinori Honda ,  Shigehiko Fujimaki ,  Tooru Yatsue

Inventor： Toshinori Ono ,  Yuuichi Kokaku ,  Yoshinori Honda ,  Shigehiko Fujimaki ,  Tooru Yatsue

IPC: C23C14/06 ,  C23C16/27 ,  G11B5/72 ,  G11B5/725 ,  G11B5/84 ,  B32B1/00 ,  C23C16/00

CPC classification number: G11B5/8408 ,  G11B5/72

Abstract: This magnetic recording medium is characterized in that in the magnetic recording medium having a magnetic film on a non-magnetic substrate by intercalating at least an under layer, the proportion of functional groups per 100 carbon atoms in a diamond-like carbon protective coating mainly composed of carbon for protecting the magnetic film exceeds 20%. The bonding force between the protective coating layer and the lubricating layer of the magnetic recording medium is increased so that under high speed rotation, a decrease in the lubricating layer is not caused so as to provide a magnetic recording apparatus having high reliability.

Abstract translation: 该磁记录介质的特征在于，在通过插入至少下层在非磁性基板上具有磁性膜的磁记录介质中，每100个碳原子的官能团的比例主要由金刚石碳保护涂层组成 的用于保护磁性膜的碳超过20％。 保护涂层和磁记录介质的润滑层之间的结合力增加，使得在高速转动下，不会引起润滑层的减少，从而提供具有高可靠性的磁记录装置。