公开(公告)号：US5646807A

公开(公告)日：1997-07-08

申请号：US707420

申请日：1996-09-04

申请人： Takeshi Ohnuki ,  Minoru Fujita ,  Osamu Ishizaki ,  Kazuyoshi Adachi

发明人： Takeshi Ohnuki ,  Minoru Fujita ,  Osamu Ishizaki ,  Kazuyoshi Adachi

IPC分类号： G11B17/04 ,  G11B23/03

CPC分类号： G11B17/0436 ,  G11B23/0308

摘要： A head shutter is mounted on casing of a magnetic disk cartridge to openably cover a head insertion opening, and a spindle shutter is mounted on the cartridge casing to openably cover a spindle insertion opening. A shutter operating member is mounted on the cartridge casing, and is operable from the outside of the cartridge casing. When the insertion openings are closed, the shutter operating member is engaged with the head shutter and the spindle shutter to hold them against their opening movements, and when the insertion openings are to be opened, the shutter operating member is disengaged from the spindle shutter, and also acts on the head shutter to open the head shutter. A shutter opening-closing mechanism is provided in a disk drive unit, and includes a first shutter opening member for operating the shutter operating member, and a second shutter opening member for moving the head shutter from its half-opened position to its fully-opened position.

摘要翻译： 磁头快门安装在磁盘盒的壳体上，以可打开地覆盖磁头插入口，并且主轴挡板安装在盒壳体上以可打开地覆盖主轴插入口。 快门操作构件安装在盒壳体上，并且可从盒壳体的外部操作。 当插入开口关闭时，快门操作构件与头快门和主轴快门接合以将其保持抵抗其打开动作，并且当插入开口打开时，快门操作构件与主轴快门脱离， 并且还作用在头快门上以打开头快门。 一个挡板打开 - 关闭机构设置在盘驱动单元中，并且包括用于操作挡板操作构件的第一闸板开启构件和用于将挡板从其半开位置移动到其完全打开的第二挡板打开构件 位置。

公开(公告)号：US06333900B1

公开(公告)日：2001-12-25

申请号：US09625177

申请日：2000-07-25

申请人： Tsuyoshi Maro ,  Hideo Daimon ,  Osamu Ishizaki ,  Tatsuo Araki ,  Takeshi Ohnuki

发明人： Tsuyoshi Maro ,  Hideo Daimon ,  Osamu Ishizaki ,  Tatsuo Araki ,  Takeshi Ohnuki

IPC分类号： G11B700

CPC分类号： G11B11/1058 ,  G11B7/122 ,  G11B7/24059 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B11/10584 ,  G11B2007/24306 ,  G11B2007/2571 ,  G11B2007/25713 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

摘要： A magneto-optical recording medium comprises, on a substrate, a reflective layer, a first dielectric layer, a recording layer, and a second dielectric layer successively in this order, for being irradiated with a recording or reproducing light beam coming from a side of the second dielectric layer. A diamond-like carbon layer as a self-lubricating layer is formed on the second dielectric layer. An optical head comprises a floating type slider installed with a solid immersion lens. A protective film having a self-lubricating property may be also formed on a bottom surface of the slider opposing to the optical recording medium. Even when the floating position of the optical head is varied, and the optical head contacts with the surface of the optical recording medium, then the sliding scratch scarcely occurs, because the optical head smoothly glides on the recording medium surface. A lubricating layer may be further formed on the self-lubricating layer.

摘要翻译： 磁光记录介质依次包括反射层，第一介电层，记录层和第二介质层，用于照射来自侧面的记录或再现光束 第二电介质层。 在第二电介质层上形成作为自润滑层的类金刚石碳层。 光学头包括安装有固体浸没透镜的浮动型滑块。 具有自润滑性的保护膜也可以形成在滑动件的与光学记录介质相对的底面上。 即使当光学头的浮动位置改变并且光学头与光学记录介质的表面接触时，由于光学头平滑地滑动在记录介质表面上，所以几乎不发生滑动刮痕。 润滑层可以进一步形成在自润滑层上。

公开(公告)号：US06217968B1

公开(公告)日：2001-04-17

申请号：US09063048

申请日：1998-04-21

申请人： Tsuyoshi Maro ,  Hideo Daimon ,  Osamu Ishizaki ,  Tatsuo Araki ,  Takeshi Ohnuki

发明人： Tsuyoshi Maro ,  Hideo Daimon ,  Osamu Ishizaki ,  Tatsuo Araki ,  Takeshi Ohnuki

IPC分类号： B32B300

CPC分类号： G11B11/1058 ,  G11B7/122 ,  G11B7/24059 ,  G11B7/252 ,  G11B7/2534 ,  G11B7/2542 ,  G11B7/2585 ,  G11B11/10584 ,  G11B2007/24306 ,  G11B2007/2571 ,  G11B2007/25713 ,  Y10S428/913 ,  Y10S430/146 ,  Y10T428/21

摘要： A magneto-optical recording medium comprises, on a substrate, a reflective layer, a first dielectric layer, a recording layer, and a second dielectric layer successively in this order, for being irradiated with a recording or reproducing light beam coming from a side of the second dielectric layer. A diamond-like carbon layer as a self-lubricating layer is formed on the second dielectric layer. An optical head comprises a floating type slider installed with a solid immersion lens. A protective film having a self-lubricating property may be also formed on a bottom surface of the slider opposing to the optical recording medium. Even when the floating position of the optical head is varied, and the optical head contacts with the surface of the optical recording medium, then the sliding scratch scarcely occurs, because the optical head smoothly glides on the recording medium surface. A lubricating layer may be further formed on the self-lubricating layer.

摘要翻译： 磁光记录介质依次包括反射层，第一介电层，记录层和第二介质层，用于照射来自侧面的记录或再现光束 第二电介质层。 在第二电介质层上形成作为自润滑层的类金刚石碳层。 光学头包括安装有固体浸没透镜的浮动型滑块。 具有自润滑性的保护膜也可以形成在滑动件的与光学记录介质相对的底面上。 即使当光学头的浮动位置改变并且光学头与光学记录介质的表面接触时，由于光学头平滑地滑动在记录介质表面上，所以几乎不发生滑动刮痕。 润滑层可以进一步形成在自润滑层上。

公开(公告)号：US20080260985A1

公开(公告)日：2008-10-23

申请号：US12068531

申请日：2008-02-07

申请人： Hiroshi Shirai ,  Kazuyoshi Adachi ,  Osamu Ishizaki ,  Tsuyoshi Onuma

发明人： Hiroshi Shirai ,  Kazuyoshi Adachi ,  Osamu Ishizaki ,  Tsuyoshi Onuma

IPC分类号： G11B7/24

CPC分类号： G11B7/24038 ,  G11B2007/24312 ,  G11B2007/24314 ,  G11B2007/24316

摘要： An information-recording medium includes first and second recording layers each of which is formed of a phase-change material containing Bi, Ge, and Te, wherein the first recording layer is arranged nearer to a light-incident side of the laser beam than the second recording layer; a composition of Bi, Ge, and Te contained in the second recording layer is within a composition range surrounded by composition points B2, C2, D2, D6, C6, and B6 on a triangular composition diagram of Bi, Ge, and Te; and a difference (α−δ) between a composition α of Bi in the first recording layer and a composition δ of Bi in the second recording layer is −1.0 to 3.0 at. %. Thus, there is provided a two-layered information-recording medium with high recording-data reliability and excellent repeated-data recording durability.

摘要翻译： 信息记录介质包括第一和第二记录层，每个记录层由包含Bi，Ge和Te的相变材料形成，其中第一记录层被布置成比激光束的光入射侧更靠近激光束的光入射侧 第二记录层; 包含在第二记录层中的Bi，Ge和Te的组成在组成点B 2，C 2，D 2，D 6，C 6和B 6的组成范围内，Bi的三角形组成图上， Ge，Te; 并且第一记录层中Bi的组成α和第二记录层中Bi的组成δ之差（α-δ）为-1.0至3.0at。 ％。 因此，提供了具有高记录数据可靠性和优异的重复数据记录耐久性的双层信息记录介质。

公开(公告)号：US20060087959A1

公开(公告)日：2006-04-27

申请号：US11250486

申请日：2005-10-17

申请人： Kazuyoshi Adachi ,  Osamu Ishizaki ,  Akemi Hirotsune ,  Junko Ushiyama

发明人： Kazuyoshi Adachi ,  Osamu Ishizaki ,  Akemi Hirotsune ,  Junko Ushiyama

IPC分类号： G11B7/24

CPC分类号： G11B7/24079 ,  G11B7/00718

摘要： An optical disk of a land-and-groove recording system capable of reducing a track pitch while suppressing the drop of an S/N ratio of reproduction signals is provided. The optical disk includes guide groove portions and space portions between the groove portions and is loaded to an optical disk recording/reproduction apparatus having a mechanism for removing or reducing leakage signals from adjacent tracks by using three or more light beam spots and signals are recorded to the groove portions and the space portions between the groove portions, wherein a wavelength λ of reproduction light irradiated from the optical disk recording/reproduction apparatus and a refractive index n of a cover layer on an incidence side of reproduction light or a substrate are from λ/12n to λ/6n.

摘要翻译： 提供了一种能够在抑制再现信号的S / N比的下降的同时减小轨道间距的纹间记录系统的光盘。 光盘包括引导槽部分和凹槽部分之间的空间部分，并被装载到具有通过使用三个或更多个光束点从相邻轨道移除或减少泄漏信号的机构的光盘记录/再现装置，并且将信号记录到 凹槽部分和凹槽部分之间的空间部分，其中从光盘记录/再现装置照射的再现光的波长λ和再现光或基底的入射侧的覆盖层的折射率n来自λ / 12n到λ/ 6n。

公开(公告)号：US6027801A

公开(公告)日：2000-02-22

申请号：US54491

申请日：1998-04-03

申请人： Tsuyoshi Maro ,  Kazuyoshi Adachi ,  Naoki Kitagaki ,  Osamu Ishizaki ,  Hideo Daimon

发明人： Tsuyoshi Maro ,  Kazuyoshi Adachi ,  Naoki Kitagaki ,  Osamu Ishizaki ,  Hideo Daimon

IPC分类号： G11B5/73 ,  G11B5/66

CPC分类号： G11B5/7325 ,  Y10S428/90 ,  Y10T428/26 ,  Y10T428/265

摘要： The present invention provides a magnetic recording medium with distinguished SNR and mechanical characteristics, which comprises an underlayer, a ferromagnetic thin film metallic layer and a protective film layer successively and continuously laminated on a non-magnetic resin substrate, where (A) at least one layer selected from the group consisting of an Si layer, an Si.sub.w N.sub.x C.sub.y O.sub.z layer and an Al.sub.w N.sub.x C.sub.y O.sub.z layer and (B) at least one layer selected from the group consisting of silicides, nitrides, oxides or their mixtures of Ti, Ta, Mo, V, Zr and their alloys are laminated on the non-magnetic resin substrate in the order of (A) and (B) or (i) a layer composed of at least one material selected from the group consisting of Ti, Ta, Mo, V, Zr, Nb and their alloys, (ii) at least one layer selected from the group consisting of an Si layer, an Si.sub.w N.sub.x C.sub.y O.sub.z layer and an Al.sub.w N.sub.x C.sub.y O.sub.z layer (where w+x+y+z=100 at. %, w.gtoreq.30 at. %, 0 .ltoreq.z.ltoreq.50 at. % and x+y.gtoreq.20 at. %), and (iii) a layer composed of at least one material selected from the group consisting of Ti, Ta, Mo, V, Zr and their alloys are laminated on the non-magnetic resin substrate in the order of (i), (ii) and (iii), between the non-magnetic resin substrate and the underlayer.

摘要翻译： 本发明提供了具有卓越的SNR和机械特性的磁记录介质，其包括在非磁性树脂基板上连续层压的底层，铁磁薄膜金属层和保护膜层，其中（A）至少一个 选自Si层，SiwNxCyOz层和AlwNxCyOz层的层，以及（B）选自由Ti，Ta，Mo，V，Zr的硅化物，氮化物，氧化物或它们的混合物组成的组中的至少一个层 并且以（A）和（B）的顺序将它们的合金层叠在非磁性树脂基板上，或者（i）由选自Ti，Ta，Mo，V，Zr中的至少一种材料构成的层 ，Nb及其合金，（ii）至少一层选自Si层，SiwNxCyOz层和AlwNxCyOz层（其中w + x + y + z = 100原子％，w> / = 30 在％，0≤z≤50at。％和x + y> / = 20 at。％），和（iii）至少由 在非磁性树脂基板上以（i），（ii）和（iii）的顺序将非磁性材料选自Ti，Ta，Mo，V，Zr及其合金中的一种材料， 树脂基材和底层。

公开(公告)号：US06654338B2

公开(公告)日：2003-11-25

申请号：US09878975

申请日：2001-06-13

申请人： Osamu Ishizaki ,  Minoru Fujita ,  Satoshi Yamagata

发明人： Osamu Ishizaki ,  Minoru Fujita ,  Satoshi Yamagata

IPC分类号： G11B2303

CPC分类号： G11B33/0422

摘要： There is provided a disk cartridge adaptable to an enlarged head by exposing an information recording disk extensively out of a cartridge case. In the disk cartridge, a cartridge case is divided on its plane into at least a first case portion and a second case portion, and the second case portion is arranged to be slidable relative to the first case portion. When the disk cartridge is not in use, the information recording disk is enabled to be covered by the first case portion and the second case portion by keeping the first case portion and the second case portion in a parallel state, and a disk freeing portion is so formed that, when the disk cartridge is in use, exposes parts of both inside face and outside face of the information recording disk are exposed from the cartridge case by moving the second case portion relative to the first case portion and overlapping the first case portion and the second case portion.

公开(公告)号：US06319580B1

公开(公告)日：2001-11-20

申请号：US09333960

申请日：1999-06-16

申请人： Tatsuo Araki ,  Hiroyuki Ohta ,  Susumu Shibasaki ,  Hiroyuki Hirata ,  Osamu Ishizaki ,  Tsuyoshi Maro

发明人： Tatsuo Araki ,  Hiroyuki Ohta ,  Susumu Shibasaki ,  Hiroyuki Hirata ,  Osamu Ishizaki ,  Tsuyoshi Maro

IPC分类号： B32B302

CPC分类号： G11B5/8408 ,  G11B7/24 ,  G11B7/24047 ,  G11B7/26 ,  G11B7/268 ,  G11B9/00 ,  G11B11/00 ,  G11B11/10584 ,  G11B23/0021 ,  Y10S428/913 ,  Y10T428/21

摘要： A recording disk comprises a substrate including a plastic material, and an overlay arranged over the substrate and including a recording substance for recording therein an information, and a radially-outer periphery of the overlay is received within a radially-outer periphery of the substrate as seen in an axial direction of the recording disk.

摘要翻译： 记录盘包括一个包括塑料材料的基片和布置在该基片上的覆盖层，并包括用于在其中记录信息的记录物质，该覆盖物的一个径向外周被接收在该基片的一个径向外周边内， 在记录盘的轴向看到。

公开(公告)号：US20050240532A1

公开(公告)日：2005-10-27

申请号：US11110759

申请日：2005-04-21

申请人： Tamotsu Iida ,  Reiji Tamura ,  Osamu Ishizaki

发明人： Tamotsu Iida ,  Reiji Tamura ,  Osamu Ishizaki

IPC分类号： G11B19/04 ,  G11B19/12 ,  G11B20/00 ,  G11B20/10 ,  H04K1/00 ,  H04L9/00 ,  G06F17/60

CPC分类号： G11B20/10 ,  G11B19/122 ,  G11B20/00086

摘要： An optical disk recording and reproducing method. In a system for reproducing unique information which specifies a medium vendor and prohibits use by a third party in a control information area of an optical disk, this method reproduces the control information during a start-up period for recording or reproduction after the optical disk is loaded into a drive unit and displays the unique information on a display unit which is connected to the drive unit.

摘要翻译： 一种光盘记录和再现方法。 在用于再现指定中型供应商并且禁止第三方在光盘的控制信息区域中使用的唯一信息的系统中，该方法在光盘为光盘之后在用于记录或再现的启动周期期间再现控制信息 加载到驱动单元中并在连接到驱动单元的显示单元上显示唯一信息。

公开(公告)号：US20050044559A1

公开(公告)日：2005-02-24

申请号：US10920380

申请日：2004-08-18

申请人： Jun Kanehira ,  Osamu Ishizaki

发明人： Jun Kanehira ,  Osamu Ishizaki

IPC分类号： G11B7/24 ,  G11B7/26 ,  G11B23/00

CPC分类号： G11B7/24097 ,  G11B7/266 ,  G11B23/0035

摘要： An optical recording medium includes a plane ring-shaped substrate in which a center hole is opened at the center thereof, a recording-retrieving function layer and a cover layer each having an outer diameter approximately equal to that of the substrate and an inner diameter larger than an outer diameter of the center hole, are stacked on the substrate, and as a separate entity from the cover layer, a clamp portion which is for holding and fixing the substrate and which has an outer diameter smaller than inner diameters of the recording-retrieving function layer and the cover layer, is provided around the center hole in a region where the cover layer is not formed.

摘要翻译： 光记录介质包括其中心孔在其中心开口的平面环形基底，记录检索功能层和覆盖层，每个外围具有与基底相近的外径，内径较大 与中心孔的外径相比，堆叠在基板上，并且作为与覆盖层分离的实体，具有用于保持和固定基板的夹紧部分，该夹持部分的外径小于记录层的内径， 提取功能层和覆盖层，设置在未形成覆盖层的区域中的中心孔周围。