公开(公告)号：US20080098416A1

公开(公告)日：2008-04-24

申请号：US11925509

申请日：2007-10-26

申请人： Naohiro NETSU ,  Yoshitaka AOKI ,  Tetsu WATANABE ,  Kazuhiko FUJIIE ,  Yasuaki MAEDA ,  Takuya KAERIYAMA

发明人： Naohiro NETSU ,  Yoshitaka AOKI ,  Tetsu WATANABE ,  Kazuhiko FUJIIE ,  Yasuaki MAEDA ,  Takuya KAERIYAMA

IPC分类号： G11B23/03 ,  G11B7/26

CPC分类号： B29C69/001 ,  B29C2793/0009 ,  B29L2017/005 ,  G11B7/007 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/24085 ,  G11B11/10508 ,  G11B11/10582 ,  G11B17/03 ,  G11B23/0035 ,  G11B23/0307 ,  G11B23/0308 ,  G11B23/0317

摘要： An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed. A magnetic-clamping hub is installed in the center hole and thus the medium is magnetically clamped to a rotation driving mechanism of an optical recording and/or reproducing apparatus. The compactness and high density of recording of the optical recording medium will contribute greatly to a further compact structure of a recording and/or reproducing apparatus in which the medium is to be used.

摘要翻译： 提供了一种光记录介质，其具有基板和设置在基板上的信号记录层，其中以微观凹坑的形式记录信息信号。 光束聚焦在信号记录层上，并且检测由来自信号记录层的返回光所携带的光束的一些变化，以读取记录在信号记录层上的信息信号。 光记录介质的直径为65mm以下，厚度为0.4〜0.7mm。 信息信号记录区域从介质中心的12.5mm或更小的径向位置向外延伸。 信息信号记录区域与非信号记录区域之间的面积比为3.4以上。 该介质的存储容量为2 GB或更多。 光记录介质在其中心处形成有中心孔，在该中心孔处形成有凸起到介质一侧的环形台面邻接。 磁性夹紧轮毂安装在中心孔中，因此介质被磁力夹紧到光学记录和/或再现装置的旋转驱动机构。 光记录介质的紧凑性和高密度记录对于使用介质的记录和/或再现装置的进一步紧凑结构将有很大的贡献。

公开(公告)号：US07154839B2

公开(公告)日：2006-12-26

申请号：US10610995

申请日：2003-07-01

申请人： Naohiro Netsu ,  Nobuhiko Ando

发明人： Naohiro Netsu ,  Nobuhiko Ando

IPC分类号： G11B7/00

CPC分类号： G11B7/1356 ,  G11B7/082 ,  G11B7/08582 ,  G11B7/12

摘要： While supporting an optical disc having a recording density that is higher than conventional optical discs by shortening the wavelength of the emitted light and increasing the numerical aperture (NA) of an objective lens, a reduction in the size of an optical pickup apparatus relative to the size of a disc cartridge that houses the optical disc is achieved. The present invention includes a fixed optical system having a built-in light source, and a movable optical system having an objective lens. A parallel light beam that enters the movable optical system from the fixed optical system enters the movable optical system via a light path that is parallel to the direction in which the objective lens is movable and from the side on which a spindle motor is provided.

摘要翻译： 通过缩短发射光的波长并增加物镜的数值孔径（NA）来支持具有高于常规光盘的记录密度的光盘，相对于光学拾取装置的尺寸的减小 实现容纳光盘的盘盒的尺寸。 本发明包括具有内置光源的固定光学系统和具有物镜的可移动光学系统。 从固定光学系统进入可移动光学系统的平行光束通过平行于物镜可移动方向的光路和从设置有主轴电机的一侧进入可移动光学系统。

公开(公告)号：US06741526B1

公开(公告)日：2004-05-25

申请号：US09507848

申请日：2000-02-22

申请人： Kazuhiko Fujiie ,  Naohiro Netsu ,  Tomohiro Koda

发明人： Kazuhiko Fujiie ,  Naohiro Netsu ,  Tomohiro Koda

IPC分类号： G11B1100

CPC分类号： G11B11/1058 ,  G11B5/105 ,  G11B5/1278 ,  G11B11/10534 ,  G11B11/10558

摘要： A magnetic head device comprising a head section 55 for applying a magnetic field to a disk. The head section 55 includes a magnetic field generating section 61 and a slider 62. The slider 62 supports the magnetic field generating section 61 and may be set in sliding contact with the disk. The magnetic field generating section 61 has a magnetic core 63 and a coil 64 wound around the magnetic core 63. The section 61 is designed to generate the magnetic field and embedded in and formed integral with the slider 62. The head section 55 excels in heat-radiating property.

摘要翻译： 一种磁头装置，包括用于向磁盘施加磁场的磁头部分55。 头部55包括磁场产生部分61和滑块62.滑块62支撑磁场产生部分61，并且可以设置成与盘滑动接触。 磁场产生部分61具有磁芯63和卷绕在磁芯63周围的线圈64.部分61被设计成产生磁场并嵌入并与滑块62一体形成。头部55在热 辐射属性。

公开(公告)号：US07007292B2

公开(公告)日：2006-02-28

申请号：US10802847

申请日：2004-03-18

申请人： Yotaro Sanada ,  Yoshio Kusui ,  Naohiro Netsu

发明人： Yotaro Sanada ,  Yoshio Kusui ,  Naohiro Netsu

IPC分类号： G11B23/03

CPC分类号： G11B17/0434 ,  G11B17/0463

摘要： A disk cartridge device includes first and second disk cartridges of different sizes for housing therein disks of different disk diameters and a cassette compartment onto which the first and second disk cartridges are selectively loaded, the cassette compartment including a pair of positioning pins having height-deciding bases for properly placing the first disk cartridge and a pair of positioning pins having height-deciding bases for properly placing the second disk cartridge, wherein the first disk cartridge has stepped escape holes formed on its lower surface to enable itself to escape from the positioning pins by which the second disk cartridge is properly positioned in the loading state when positioning holes of the first disk cartridge are properly fitted into positioning pins and the height is properly decided.

摘要翻译： 磁盘盒装置包括不同尺寸的第一和第二磁盘盒，用于容纳不同磁盘直径的磁盘，以及盒式磁带室，第一和第二磁盘盒被选择性地装载在磁带室上，盒室包括一对具有高度决定性的定位销 用于正确放置第一盘盒的基座和一对具有用于正确放置第二盘盒的高度确定底座的定位销，其中第一盘盒具有形成在其下表面上的阶梯式排泄孔，以使其能够从定位销 当第一盘盒的定位孔适当地装配到定位销中并且适当地确定高度时，第二盘盒被正确地定位在装载状态。

公开(公告)号：US06785222B2

公开(公告)日：2004-08-31

申请号：US10040110

申请日：2001-10-29

申请人： Naohiro Netsu ,  Yoshitaka Aoki ,  Tetsu Watanabe ,  Kazuhiko Fujiie ,  Yasuaki Maeda ,  Takuya Kaeriyama

发明人： Naohiro Netsu ,  Yoshitaka Aoki ,  Tetsu Watanabe ,  Kazuhiko Fujiie ,  Yasuaki Maeda ,  Takuya Kaeriyama

IPC分类号： G11B2300

CPC分类号： B29C69/001 ,  B29C2793/0009 ,  B29L2017/005 ,  G11B7/007 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/24085 ,  G11B11/10508 ,  G11B11/10582 ,  G11B17/03 ,  G11B23/0035 ,  G11B23/0307 ,  G11B23/0308 ,  G11B23/0317

摘要： An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed. A magnetic-clamping hub is installed in the center hole and thus the medium is magnetically clamped to a rotation driving mechanism of an optical recording and/or reproducing apparatus. The compactness and high density of recording of the optical recording medium will contribute greatly to a further compact structure of a recording and/or reproducing apparatus in which the medium is to be used.

摘要翻译： 提供了一种光记录介质，其具有基板和设置在基板上的信号记录层，其中以微观凹坑的形式记录信息信号。 光束聚焦在信号记录层上，并且检测由来自信号记录层的返回光所携带的光束的一些变化，以读取记录在信号记录层上的信息信号。 光记录介质的直径为65mm以下，厚度为0.4〜0.7mm。 信息信号记录区域从介质中心的12.5mm或更小的径向位置向外延伸。 信息信号记录区域与非信号记录区域之间的面积比为3.4以上。 该介质的存储容量为2 GB或更多。 光记录介质在其中心处形成有中心孔，在该中心孔处形成有凸起到介质一侧的环形台面邻接。 磁性夹紧轮毂安装在中心孔中，因此介质被磁力夹紧到光学记录和/或再现装置的旋转驱动机构。 光记录介质的紧凑性和高密度记录对于使用介质的记录和/或再现装置的进一步紧凑结构将有很大的贡献。

公开(公告)号：US07305689B2

公开(公告)日：2007-12-04

申请号：US10833540

申请日：2004-07-15

申请人： Naohiro Netsu ,  Yoshitaka Aoki ,  Tetsu Watanabe ,  Kazuhiko Fujiie ,  Yasuaki Maeda ,  Takuya Kaeriyama

发明人： Naohiro Netsu ,  Yoshitaka Aoki ,  Tetsu Watanabe ,  Kazuhiko Fujiie ,  Yasuaki Maeda ,  Takuya Kaeriyama

IPC分类号： G11B7/24

CPC分类号： B29C69/001 ,  B29C2793/0009 ,  B29L2017/005 ,  G11B7/007 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/24085 ,  G11B11/10508 ,  G11B11/10582 ,  G11B17/03 ,  G11B23/0035 ,  G11B23/0307 ,  G11B23/0308 ,  G11B23/0317

摘要： An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed. A magnetic-clamping hub is installed in the center hole and thus the medium is magnetically clamped to a rotation driving mechanism of an optical recording and/or reproducing apparatus. The compactness and high density of recording of the optical recording medium will contribute greatly to a further compact structure of a recording and/or reproducing apparatus in which the medium is to be used.

摘要翻译： 提供了一种光记录介质，其具有基板和设置在基板上的信号记录层，其中以微观凹坑的形式记录信息信号。 光束聚焦在信号记录层上，并且检测由来自信号记录层的返回光所携带的光束的一些变化，以读取记录在信号记录层上的信息信号。 光记录介质的直径为65mm以下，厚度为0.4〜0.7mm。 信息信号记录区域从介质中心的12.5mm或更小的径向位置向外延伸。 信息信号记录区域与非信号记录区域之间的面积比为3.4以上。 该介质的存储容量为2 GB或更多。 光记录介质在其中心处形成有中心孔，在该中心孔处形成有凸起到介质一侧的环形台面邻接。 磁性夹紧轮毂安装在中心孔中，因此介质被磁力夹紧到光学记录和/或再现装置的旋转驱动机构。 光记录介质的紧凑性和高密度记录对于使用介质的记录和/或再现装置的进一步紧凑结构将有很大的贡献。

公开(公告)号：US06700851B1

公开(公告)日：2004-03-02

申请号：US09711266

申请日：2000-11-09

申请人： Yotaro Sanada ,  Yoshio Kusui ,  Naohiro Netsu

发明人： Yotaro Sanada ,  Yoshio Kusui ,  Naohiro Netsu

IPC分类号： G11B2303

CPC分类号： G11B17/054 ,  G11B17/0545

摘要： A disk cartridge device includes a plurality of disk cartridges with disks having different disk diameters and each being stored in cartridge housings having different sizes, a recording and reproducing device with the plurality of disk cartridges having different sizes selectively mounted, pairs of positioning pins having a base for determining the height for positioning each of the disk cartridges having different sizes onto the recording and reproducing device and positioning holes on one surface of the disk cartridges having different sizes, to be respectively engaged with the pairs of the positioning pins so as to be positioned. The position of the positioning holes of the disk cartridge having a small disk diameter is disposed outside the disk circumference of the disk cartridge having a large disk diameter.

摘要翻译： 磁盘盒装置包括具有不同磁盘直径的磁盘的多个磁盘盒，并且每个磁盘盒都存储在具有不同尺寸的盒壳体中，具有选择性地安装的具有不同尺寸的多个磁盘盒的记录和再现装置，成对的定位销具有 用于确定用于将具有不同尺寸的每个盘盒定位到记录和再现装置上的高度的基座以及具有不同尺寸的盘盒的一个表面上的定位孔，以分别与成对的定位销接合，以便成为 定位。 具有小盘直径的盘盒的定位孔的位置设置在具有大的盘直径的盘盒的盘圆周的外侧。

公开(公告)号：US07454771B2

公开(公告)日：2008-11-18

申请号：US11925509

申请日：2007-10-26

申请人： Naohiro Netsu ,  Yoshitaka Aoki ,  Tetsu Watanabe ,  Kazuhiko Fujiie ,  Yasuaki Maeda ,  Takuya Kaeriyama

发明人： Naohiro Netsu ,  Yoshitaka Aoki ,  Tetsu Watanabe ,  Kazuhiko Fujiie ,  Yasuaki Maeda ,  Takuya Kaeriyama

IPC分类号： G11B7/24

CPC分类号： B29C69/001 ,  B29C2793/0009 ,  B29L2017/005 ,  G11B7/007 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/24085 ,  G11B11/10508 ,  G11B11/10582 ,  G11B17/03 ,  G11B23/0035 ,  G11B23/0307 ,  G11B23/0308 ,  G11B23/0317

摘要： An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed. A magnetic-clamping hub is installed in the center hole and thus the medium is magnetically clamped to a rotation driving mechanism of an optical recording and/or reproducing apparatus. The compactness and high density of recording of the optical recording medium will contribute greatly to a further compact structure of a recording and/or reproducing apparatus in which the medium is to be used.

摘要翻译： 提供了一种光记录介质，其具有基板和设置在基板上的信号记录层，其中以微观凹坑的形式记录信息信号。 光束聚焦在信号记录层上，并且检测由来自信号记录层的返回光所携带的光束的一些变化，以读取记录在信号记录层上的信息信号。 光记录介质的直径为65mm以下，厚度为0.4〜0.7mm。 信息信号记录区域从介质中心的12.5mm或更小的径向位置向外延伸。 信息信号记录区域与非信号记录区域之间的面积比为3.4以上。 该介质的存储容量为2 GB或更多。 光记录介质在其中心处形成有中心孔，在该中心孔处形成有凸起到介质一侧的环形台面邻接。 磁性夹紧轮毂安装在中心孔中，因此介质被磁力夹紧到光学记录和/或再现装置的旋转驱动机构。 光记录介质的紧凑性和高密度记录对于使用介质的记录和/或再现装置的进一步紧凑结构将有很大的贡献。

公开(公告)号：US06747943B2

公开(公告)日：2004-06-08

申请号：US10040205

申请日：2001-10-29

申请人： Naohiro Netsu ,  Yoshitaka Aoki ,  Tetsu Watanabe ,  Kazuhiko Fujiie ,  Yasuaki Maeda ,  Takuya Kaeriyama

发明人： Naohiro Netsu ,  Yoshitaka Aoki ,  Tetsu Watanabe ,  Kazuhiko Fujiie ,  Yasuaki Maeda ,  Takuya Kaeriyama

IPC分类号： G11B2303

CPC分类号： B29C69/001 ,  B29C2793/0009 ,  B29L2017/005 ,  G11B7/007 ,  G11B7/24 ,  G11B7/24038 ,  G11B7/24085 ,  G11B11/10508 ,  G11B11/10582 ,  G11B17/03 ,  G11B23/0035 ,  G11B23/0307 ,  G11B23/0308 ,  G11B23/0317

摘要： An optical recording medium is provided which has a substrate and a signal recording layer provided on the substrate and in which an information signal is recorded in the form of microscopic pits. A light beam is focused on the signal recording layer and some change of the light beam carried by a return light from the signal recording layer is detected to read the information signal recorded on the signal recording layer. The optical recording medium has a diameter of 65 mm or less and a thickness of 0.4 to 0.7 mm. An information signal recording area extends outwardly from a radial position of 12.5 mm or less from the center of the medium. The ratio in area between the information signal recording area and non-signal recording area is 3.4 or more. The storage capacity of this medium is 2 gigabytes or more. The optical recording medium has formed at the center thereof a center hole around which an annular table-abutment convexing to one side of the medium is formed. A magnetic-clamping hub is installed in the center hole and thus the medium is magnetically clamped to a rotation driving mechanism of an optical recording and/or reproducing apparatus. The compactness and high density of recording of the optical recording medium will contribute greatly to a further compact structure of a recording and/or reproducing apparatus in which the medium is to be used.

公开(公告)号：US06538984B2

公开(公告)日：2003-03-25

申请号：US09775200

申请日：2001-02-01

申请人： Yotaro Sanada ,  Yoshio Kusui ,  Naohiro Netsu

发明人： Yotaro Sanada ,  Yoshio Kusui ,  Naohiro Netsu

IPC分类号： G11B370

CPC分类号： G11B17/043 ,  G11B23/0308 ,  G11B23/0311

摘要： A disk cartridge and its loading method in which loading recessed portions can easily be secured and mis-loading and mis-insertion of the disk cartridge can be prevented, wherein the disk cartridge has at its left and right side end portions on the insertion side formed as a pair of loading recess portions and one loading recess portion is hidden by a shutter plate that has been placed in the closed state.

摘要翻译： 一种盘盒及其装载方法，其中可以容易地确保装载凹部，并且可以防止盘盒的错误装入和错误插入，其中盘盒在其插入侧的左侧和右侧端部形成 因为一对加载凹部和一个装载凹部被已经处于关闭状态的挡板遮住。