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1.发明授权公开(公告)号：US07166376B2
公开(公告)日：2007-01-23
申请号：US10786611
申请日：2004-02-26
Applicant: Takashi Hikosaka , Futoshi Nakamura , Soichi Oikawa , Takeshi Iwasaki , Tomoyuki Maeda , Hiroshi Sakai , Kenji Shimizu , Akira Sakawaki
Inventor： Takashi Hikosaka , Futoshi Nakamura , Soichi Oikawa , Takeshi Iwasaki , Tomoyuki Maeda , Hiroshi Sakai , Kenji Shimizu , Akira Sakawaki
IPC: G11B5/66
Abstract: A multi-layer including a magnetic recording layer and a high-magnetostriction layer having a magnetostriction constant larger than that of the magnetic recording layer is formed.
Abstract translation: 形成包括磁记录层和磁致伸缩常数大于磁记录层的磁致伸缩常数的高磁致伸缩层的多层。
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2.发明授权公开(公告)号：US07138194B2
公开(公告)日：2006-11-21
申请号：US10630796
申请日：2003-07-31
Applicant: Kenji Shimizu , Akira Sakawaki , Hiroshi Sakai , Takashi Hikosaka , Soichi Oikawa
Inventor： Kenji Shimizu , Akira Sakawaki , Hiroshi Sakai , Takashi Hikosaka , Soichi Oikawa
CPC classification number: G11B5/667 , G11B5/7325
Abstract: The magnetic recording medium comprises a soft magnetic undercoat film, an orientation control film that controls the orientation of a film provided directly above, a perpendicular magnetic film of which axis of easy magnetization is generally oriented perpendicular to a non-magnetic substrate, and a protective film, that are provided on the non-magnetic substrate, wherein the orientation control film is made of a Co alloy which contains one or more elements selected from Ti, V, Sr, Y, Nb, Mo, Hf, Ta, Ni and W.
Abstract translation: 磁记录介质包括软磁性底涂膜，控制直接在其上方设置的膜的取向的取向控制膜，容易磁化的轴线大致垂直于非磁性基板的垂直磁性膜，以及保护膜 膜，其中所述取向控制膜由包含选自Ti，V，Sr，Y，Nb，Mo，Hf，Ta，Ni和W中的一种或多种元素的Co合金制成 。
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3.发明授权公开(公告)号：US06805981B2
公开(公告)日：2004-10-19
申请号：US09902688
申请日：2001-07-12
Applicant: Hideo Ogiwara , Takashi Hikosaka , Soichi Oikawa , Hiroshi Sakai , Kenji Shimizu
Inventor： Hideo Ogiwara , Takashi Hikosaka , Soichi Oikawa , Hiroshi Sakai , Kenji Shimizu
IPC: G11B566
CPC classification number: G11B5/66 , Y10S428/90
Abstract: A perpendicular magnetic recording medium comprising a layer exhibiting a super paramagnetism is used as the underlying film to enable the recording medium to achieve a high density recording with a low noise.
Abstract translation: 使用包含表现出超顺磁性的层的垂直磁记录介质作为底层膜，使得记录介质能够实现低噪声的高密度记录。
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公开(公告)号：US6128166A
公开(公告)日：2000-10-03
申请号：US444106
申请日：1995-05-18
Applicant: Yoichiro Tanaka , Norio Nakamura , Kazunori Moriya , Yuji Kubota , Takashi Hikosaka
Inventor： Yoichiro Tanaka , Norio Nakamura , Kazunori Moriya , Yuji Kubota , Takashi Hikosaka
IPC: G11B5/02 , G11B5/00 , G11B5/012 , G11B5/024 , G11B5/09 , G11B5/23 , G11B5/265 , G11B5/31 , G11B5/39 , G11B5/82
CPC classification number: G11B5/012 , G11B5/82 , G11B2005/0029 , G11B5/3103 , G11B5/3116 , G11B5/3967
Abstract: According to this invention, there is provided a magnetic recording/reproducing system having a recording head for recording a signal in a magnetic recording medium along recording tracks having a predetermined track pitch and a reproducing head for reproducing the recorded signal. A relationship between a recording track width Tw of the recording head and a reproduction width Tr of the reproducing head is defined as Tr>Tw. When conditions g
Abstract translation: 根据本发明，提供一种具有记录头的磁记录/再现系统，该记录头用于沿着具有预定轨道间距的记录道和用于再现记录信号的再现头在磁记录介质中记录信号。 记录头的记录道宽度Tw与再现头的再现宽度Tr之间的关系被定义为Tr> Tw。 当条件g <（1500 / Hc-Hc / 4000pi + 0.3）/（Hc / 400pi- + E，fra 1/2 + EE）和g> / =（1500 / Hc-Hc / Tp + Tw）/（Hc /400π-+ E，fra1 / 2 + EE），在记录轨道之间形成擦除区域。 在这种情况下，记录头的间隙长度由g表示，记录磁道宽度由Tw表示，磁道间距由Tp表示，矫顽力 记录介质由Hc [Oe]表示。
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公开(公告)号：US5942342A
公开(公告)日：1999-08-24
申请号：US960120
申请日：1997-10-27
Applicant: Takashi Hikosaka , Yoichiro Tanaka , Junichi Akiyama
Inventor： Takashi Hikosaka , Yoichiro Tanaka , Junichi Akiyama
CPC classification number: G11B5/66 , G11B5/656 , Y10S428/90 , Y10T428/12458 , Y10T428/12465 , Y10T428/12535 , Y10T428/12611
Abstract: A magnetic recording apparatus comprising a perpendicular recording medium, a recording head for perpendicular magnetization the perpendicular magnetization film of the recording medium, to thereby recording signals on the recording medium, and a reproducing head of magnetoresistance type for reading signals from the recording medium. The medium comprises a substrate, an underlayer formed on the substrate, and a perpendicular magnetization film formed on the substrate and having a crystal phase of a CoPt-based alloy and a compound phase of material selected from the group consisting of Co oxide, Co nitride and Co carbide.
Abstract translation: 一种磁记录装置，包括垂直记录介质，用于使记录介质的垂直磁化膜垂直磁化的记录头，从而在记录介质上记录信号，以及用于从记录介质读取信号的磁阻型再现头。 所述介质包括基板，形成在所述基板上的底层，以及在所述基板上形成的具有CoPt基合金的晶相和选自Co氧化物，Co氮化物的材料的化合物相的垂直磁化膜 和Co碳化物。
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Patent Agency Ranking
公开(公告)号：US5792564A
公开(公告)日：1998-08-11
申请号：US470463
申请日：1995-06-06
Applicant: Takashi Hikosaka , Yoichiro Tanaka , Junichi Akiyama
Inventor： Takashi Hikosaka , Yoichiro Tanaka , Junichi Akiyama
CPC classification number: G11B5/66 , G11B5/656 , Y10S428/90 , Y10T428/12458 , Y10T428/12465 , Y10T428/12535 , Y10T428/12611
Abstract: A longitudinal recording medium and a magnetic recording apparatus containing the same, comprising a substrate and a longitudinal magnetization film formed on the substrate containing grains of a Co-based alloy, and exhibiting an oxygen concentration distribution having two peaks as follows: a peak of higher oxygen concentration pertaining to grain boundaries of the longitudinal magnetization film, and a peak of lower oxygen concentration pertaining to grain interiors of the longitudinal magnetization film.
Abstract translation: 一种纵向记录介质和含有该记录介质的磁记录装置，包括在包含Co基合金颗粒的基板上形成的基板和纵向磁化膜，并显示具有两个峰的氧浓度分布如下：高 与纵向磁化膜的晶界相关的氧浓度以及与纵向磁化膜的晶粒内部相关的较低的氧浓度的峰值。
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公开(公告)号：US5486967A
公开(公告)日：1996-01-23
申请号：US212120
申请日：1994-03-14
Applicant: Yoichiro Tanaka , Kazushi Tanimoto , Hiroshi Ohashi , Takashi Hikosaka , Yasuo Ohtsubo , Shigeru Hoshina
Inventor： Yoichiro Tanaka , Kazushi Tanimoto , Hiroshi Ohashi , Takashi Hikosaka , Yasuo Ohtsubo , Shigeru Hoshina
CPC classification number: B82Y25/00 , B82Y10/00 , G11B5/012 , G11B5/10 , G11B5/1278 , G11B5/39 , G11B5/3903 , G11B5/3919 , G11B5/58 , G11B2005/0029 , G11B2005/3996
Abstract: According to the present invention, there is provided a magnetic disk memory system. An embodiment of this system comprises a magnetic disk of a perpendicular recording type, including a soft magnetic backing layer and a magnetic recording layer of a perpendicular magnetic anisotropy formed on the backing layer, and a magnetic head for writing or reading of data with respect to the magnetic disk, wherein the magnetic head comprises (a) a pair of main magnetic poles each of which made of a material having a high magnetic permeability, one end of the each pole being located so as to face the magnetic disk surface, (b) a non-magnetic interlayer provided between two main magnetic poles of the pair, (c) a recording coil disposed so as to generate a magnetic flux passing through the magnetic disk via the main magnetic poles, and (d) an MR element provided via an insulation layer on the other ends of the pair of main magnetic poles, one MR element having a film surface parallel to end surfaces of the other ends of the main magnetic poles, and being magnetically coupled with the pair of main magnetic poles.
Abstract translation: 根据本发明，提供了一种磁盘存储系统。 该系统的一个实施例包括垂直记录类型的磁盘，包括形成在背衬层上的软磁背衬层和垂直磁各向异性的磁记录层，以及用于写入或读取相对于 所述磁头包括（a）一对主磁极，每个主磁极由具有高磁导率的材料制成，每个磁极的一端被定位成面对磁盘表面，（b ）设置在该对的两个主磁极之间的非磁性中间层，（c）设置成经由主磁极产生穿过磁盘的磁通的记录线圈，以及（d）经由 在一对主磁极的另一端上的绝缘层，一个MR元件，其膜表面平行于主磁极的另一端的端面，并与t磁性耦合 他的一对主磁极。
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公开(公告)号：US4235548A
公开(公告)日：1980-11-25
申请号：US8336
申请日：1979-01-31
Applicant: Osamu Miyamoto , Isao Iizaka , Toshio Yamamoto , Takashi Hikosaka , Shigemitsu Shimizu
Inventor： Osamu Miyamoto , Isao Iizaka , Toshio Yamamoto , Takashi Hikosaka , Shigemitsu Shimizu
CPC classification number: G03G15/6597 , G03G15/18 , G03G2215/00371 , G03G2215/00518
Abstract: An electrostatic latent image transfer type copying apparatus which has a photoconductive member, a system for forming an electrostatic latent image on the photoconductive member, an image transfer system for conducting transfer material having an insulating dielectric layer coated over an electrically conductive layer into contact with the photoconductive member for transferring the latent image onto said transfer material, a transporter for the transfer material to transport it along a predetermined path to the image transfer system, a member such as a relatively sharp edge member like a cutter provided along the path and below which the insulating dielectric layer side of the transfer material passes, and an insulating member provided adjacent the sharp edge member for preventing the surface of transfer material from contacting the sharp edge member as the transfer material is transported, whereby the contact of the sharp edge member with the surface of transfer material which causes frictional charging on the transfer material is substantially prevented.
Abstract translation: 具有感光体的静电潜像转印型复印装置，在感光体上形成静电潜像的系统，具有涂覆在导电层上的绝缘电介质层的转印材料的图像转印系统， 用于将潜像转印到所述转印材料上的光电导元件，用于转印材料的传送器，用于沿着预定路径将其传送到图像传送系统;诸如沿着路径设置的下方的沿切割器设置的相对锋利的边缘部件的部件， 转印材料的绝缘介电层侧通过，并且设置在尖锐边缘部件附近的绝缘部件，用于防止转印材料的表面在转印材料被输送时与锋利边缘部件接触，由此锐边部件与 转移材料的表面引起 基本上防止了对转印材料的摩擦充电。
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公开(公告)号：US3997262A
公开(公告)日：1976-12-14
申请号：US500171
申请日：1974-08-23
Applicant: Yasuhiko Doi , Shunji Yamamoto , Osamu Okada , Takashi Hikosaka , Masamichi Hayashi
Inventor： Yasuhiko Doi , Shunji Yamamoto , Osamu Okada , Takashi Hikosaka , Masamichi Hayashi
CPC classification number: G03G15/10 , G03G15/104 , G03G15/11 , G03G15/307 , G03G21/1628 , G03G2221/16 , G03G2221/1636 , G03G2221/1642 , G03G2221/1654 , G03G2221/1657 , G03G2221/1672 , G03G2221/1687
Abstract: A transfer type electrophotographic copying apparatus with a reciprocating platform to place an original to be copied thereon, which comprises a rotatable photoreceptor drum of a small diameter, and processing devices of small size disposed around the photoreceptor drum with minimum spaces necessary between the processing devices, so that the size and weight of the copying apparatus can be reduced to a large extent. The housing of the apparatus can be divided into an upper frame and a lower frame with the upper frame pivotally connected to the lower frame for easy access to the internal mechanisms in maintenance and replacing of the parts.
Abstract translation: 一种具有往复式平台的转印型电子照相复印装置，其中放置要复印的原稿，其包括小直径的可旋转的感光鼓，以及设置在感光鼓周围的小尺寸的处理装置，处理装置之间需要的空间最小， 从而可以在很大程度上降低复印装置的尺寸和重量。 设备的外壳可以分为上框架和下框架，上框架可枢转地连接到下框架，以便在维护和更换零件时便于访问内部机构。
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10.发明授权公开(公告)号：US07166375B2
公开(公告)日：2007-01-23
申请号：US10029204
申请日：2001-12-28
Applicant: Kenji Shimizu , Hiroshi Sakai , Takashi Hikosaka , Futoshi Nakamura
Inventor： Kenji Shimizu , Hiroshi Sakai , Takashi Hikosaka , Futoshi Nakamura
Abstract: A magnetic recording medium, a method for producing the same, and a magnetic recording and reproducing device are provided which can prevent spike noise and improve the error rate. The magnetic recording medium comprises at least one nonmagnetic substrate, a soft magnetic underlayer, an orientation control layer to control the orientation of the layer formed directly above the same, and a perpendicular magnetic layer having an axis of easy magnetization which is oriented mainly perpendicularly to the nonmagnetic substrate. The soft magnetic underlayer is formed with a multilayer structure having at least two soft magnetic layers and one or more separation layers interposed between the soft magnetic layers, and at least one of the soft magnetic layers comprises a material with a structure having no magnetic domain walls.
Abstract translation: 提供了一种磁记录介质，其制造方法和磁记录和再现装置，其可以防止尖峰噪声并提高误码率。 磁记录介质包括至少一个非磁性衬底，软磁性底层，用于控制其正上方形成的层的取向的取向控制层以及具有易于磁化的轴的垂直磁性层，其主要垂直于 非磁性基板。 软磁性底层形成为具有至少两个软磁性层和插入在软磁性层之间的一个或多个分离层的多层结构，并且至少一个软磁性层包括具有不具有磁畴壁的结构的材料 。
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