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1. 发明授权

US06208610B1 Adjustable optical pickup device with means for removing stray light 失效
标题翻译：可调光学拾取装置，具有去除杂散光的装置
公开(公告)号：US06208610B1
公开(公告)日：2001-03-27
申请号：US09011019
申请日：1998-06-08
申请人： Takashi Kawakami , Tokio Kanada
发明人： Takashi Kawakami , Tokio Kanada
IPC分类号： G11B700
CPC分类号： G11B7/1356 , G11B7/1353 , G11B7/1381 , G11B7/22
摘要： An optical pickup device including a light source, an objective lens for converging a light beam outgoing from said light source, a beam splitter arranged between the light source and the objective lens for splitting the light beam radiated from the light source from a light beam incident thereon via the objective lens and a photodetector for receiving the light beam split by the beam splitter and incident on it via the objective lens. The optical pickup device also includes irregularities or an inclined surface for scattering stray light components produced when a light beam outgoing from the light source is passed through the beam splitter for preventing the stray light components from entering the photodetector for improving detection accuracy of the photodetector.
摘要翻译：一种光拾取装置，包括光源，用于会聚来自所述光源的光束的物镜，布置在光源和物镜之间的分束器，用于将从光源辐射的光束从入射光束通过物镜在其上，以及光电检测器，用于接收由分束器分离并通过物镜入射的光束。当从光源出射的光束通过光束分离器以防止杂散光成分进入光电检测器以提高光电检测器的检测精度时，光学拾取装置还包括不规则部分或用于散射杂散光成分的倾斜表面。

2. 发明授权

US5835475A Optical device and optical pickup device 失效
标题翻译：光学装置和光学拾取装置
公开(公告)号：US5835475A
公开(公告)日：1998-11-10
申请号：US815929
申请日：1997-03-13
申请人： Takashi Kawakami , Tokio Kanada , Takuya Kaeriyama
发明人： Takashi Kawakami , Tokio Kanada , Takuya Kaeriyama
IPC分类号： G11B7/135 , G11B7/125 , G11B7/12
CPC分类号： G11B7/1378 , G11B7/1365 , G11B7/1398
摘要： An optical pickup apparatus has an optical system and an objective lens. The optical system has a semiconductor laser and an optical element. The semiconductor laser has an astigmatic difference in which an oscillated light beam has a light emission point in a semiconductor junction plane different from that in a plane normal to the semiconductor junction plane. The optical element is arranged in a light path of a light beam radiated from the semiconductor laser for over-correcting the astigmatic aberration of the light beam radiated from the semiconductor laser. The objective lens converges the light beam radiated by the light source via the optical element.
摘要翻译：光学拾取装置具有光学系统和物镜。光学系统具有半导体激光器和光学元件。半导体激光器具有像散差，其中振荡的光束在半导体结面中具有与垂直于半导体结面的平面中的发光点不同的发光点。光学元件布置在从半导体激光器辐射的光束的光路中，用于对从半导体激光器辐射的光束的像散进行过度校正。物镜会聚由光源照射的光束经由光学元件。

3. 发明申请

US20060075410A1 Disk cartridge 失效
标题翻译：磁盘盒
公开(公告)号：US20060075410A1
公开(公告)日：2006-04-06
申请号：US10541456
申请日：2004-10-27
申请人： Takashi Ohgi , Takahiro Yamada , Kazuhito Kurita , Tokio Kanada , Toru Morikawa
发明人： Takashi Ohgi , Takahiro Yamada , Kazuhito Kurita , Tokio Kanada , Toru Morikawa
IPC分类号： G11B33/02
CPC分类号： G11B23/0308
摘要： A disk cartridge is provided which includes an optical disk (2), a cartridge body (5) having formed therein a head opening (13) through which a part of the optical disk (2) is exposed to outside in a range between the inner and outer radii thereof, a shutter member (15) supported movably on the cartridge body (5) to uncover and cover the head opening (13), and a two-way forcing mechanism (38) to force the shutter member (15) toward any selected one of positions to cover and uncover the head opening (13). The two-way forcing mechanism (38) forces the shutter member (15) toward any selected one of the positions to cover and uncover the head opening (13) correspondingly to a position of the shutter member (15) relative to the head opening (13).
摘要翻译：提供了一种盘盒，其包括光盘（2），其中形成有头部开口（13）的盒体（5），光盘（2）的一部分通过该头部开口暴露在外部的内部以及其外半径，可移动地支撑在盒主体（5）上以露出和覆盖头部开口（13）的活门构件（15），以及双向推动机构（38），以将活门构件（15）朝向任何选定的一个位置以覆盖和露出头部开口（13）。双向强制机构（38）迫使挡板部件（15）朝着与所述挡板部件（15）相对于头部开口（15）的位置相对应地覆盖和露出头部开口（13）的任何所选位置 13）。

4. 发明授权

US07003786B2 Recording medium driving device 失效
公开(公告)号：US07003786B2
公开(公告)日：2006-02-21
申请号：US11105034
申请日：2005-04-12
申请人： Tokio Kanada , Mikinori Matsuda
发明人： Tokio Kanada , Mikinori Matsuda
IPC分类号： G11B17/03
CPC分类号： G11B17/043 , G11B17/051
摘要： A driving device includes a holder (16) movably carried by a chassis (5) and adapted for transporting a disc cartridge the holder holds between an insertion/ejection position and a loading position, and an ejection lever (39) for ejecting the disc cartridge from the holder (16). The driving device also includes a slider (31) movable in a direction of inserting the disc cartridge into the holder (16) and in a direction of ejecting the disc cartridge from the holder. The slider causes the holder (16) to be moved to the loading position when the slider is moved in the disc cartridge inserting direction, while causing the holder (16) to be moved to the insertion/ejection position when the slider is moved in the disc cartridge ejecting direction. The driving device also includes a spring member (45) provided between the ejection lever (39) and the slider (31) for biasing the ejection lever (39) in a direction of ejecting the disc cartridge from the holder (16) and for biasing the slider (31) in the disc cartridge inserting direction.

5. 发明申请

US20050180046A1 Recording medium driving device 失效
公开(公告)号：US20050180046A1
公开(公告)日：2005-08-18
申请号：US11105129
申请日：2005-04-12
申请人： Tokio Kanada , Mikinori Matsuda
发明人： Tokio Kanada , Mikinori Matsuda
IPC分类号： G11B17/04
CPC分类号： G11B17/043 , G11B17/051
摘要： A driving device includes a holder (16) movably carried by a chassis (5) and adapted for transporting a disc cartridge the holder holds between an insertion/ejection position and a loading position, and an ejection lever (39) for ejecting the disc cartridge from the holder (16). The driving device also includes a slider (31) movable in a direction of inserting the disc cartridge into the holder (16) and in a direction of ejecting the disc cartridge from the holder. The slider causes the holder (16) to be moved to the loading position when the slider is moved in the disc cartridge inserting direction, while causing the holder (16) to be moved to the insertion/ejection position when the slider is moved in the disc cartridge ejecting direction. The driving device also includes a spring member (45) provided between the ejection lever (39) and the slider (31) for biasing the ejection lever (39) in a direction of ejecting the disc cartridge from the holder (16) and for biasing the slider (31) in the disc cartridge inserting direction.

6. 发明申请

US20060123442A1 Disk cartridge and recording and/or reproducing device 失效
标题翻译：磁盘盒和记录和/或再现装置
公开(公告)号：US20060123442A1
公开(公告)日：2006-06-08
申请号：US10528112
申请日：2004-07-23
申请人： Kazuhito Kurita , Mikinori Matsuda , Takahiro Yamada , Tokio Kanada , Takashi Fukushima
发明人： Kazuhito Kurita , Mikinori Matsuda , Takahiro Yamada , Tokio Kanada , Takashi Fukushima
IPC分类号： G11B23/03
CPC分类号： G11B23/0308
摘要： Disclosed is a disc cartridge in which is housed an optical disc (2). The disc cartridge includes a main cartridge body unit (5), rotatably housing an optical disc, and having an aperture for a head part (13) for exposing a part of the optical disc to outside across the inner and outer rims of the optical disc, and a shutter unit (15) mounted for movement to this main cartridge body unit for opening/closing the aperture for the head part (13). A recess (31) into which is introduced a portion of a head part of the recording and/or reproducing apparatus is formed in continuation to the aperture for the head part in a surface of the main cartridge body unit on which slides a shutter unit in an area opposite to the area of movement of the shutter unit with the aperture for the head part in-between.
摘要翻译：公开了一种盘盒，其中容纳有光盘（2）。盘盒包括主盒主体单元（5），其可旋转地容纳光盘，并且具有用于头部（13）的孔，用于将光盘的一部分暴露在光盘的内周和外轮缘外部以及安装用于移动到该主盒体单元以用于打开/关闭头部（13）的孔的快门单元（15）。导入记录和/或再现装置的头部的一部分的凹部（31）形成为连续到主盒体单元的表面中的头部的孔，其中，快门单元与快门单元的运动区域相对的区域，其中具有头部部分的孔。

7. 发明申请

US20060031859A1 Recording medium, recording/reproduction device, and recording/reproduction method 失效
标题翻译：记录介质，记录/再现装置和记录/再现方法
公开(公告)号：US20060031859A1
公开(公告)日：2006-02-09
申请号：US11246363
申请日：2005-10-11
申请人： Mikinori Matsuda , Tokio Kanada , Kazuhito Kurita , Minoru Tobita , Akihiro Noda , Yoshiro Arikawa , Shinichi Nakao
发明人： Mikinori Matsuda , Tokio Kanada , Kazuhito Kurita , Minoru Tobita , Akihiro Noda , Yoshiro Arikawa , Shinichi Nakao
IPC分类号： G11B17/04
CPC分类号： G11B23/285 , G11B11/10578 , G11B11/10584 , G11B11/10597 , G11B19/12 , G11B23/0303
摘要： A recording medium enabling type determination and writing possibility determination for various types of disks. Opening and closing means for opening and closing a detection hole of a cartridge forms a plane substantially horizontal level with a reference plane of the cartridge at a position of the detection hole when the detection hole is in a closed state. The cartridge has at least a first detection hole and a second detection hole formed therein. The second detection hole (H1) is opened and closed by the opening and closing means, and the first detection hole (H0) is in an open state at all times. A disk drive apparatus or a disk determining method determines, together with a disk type, determining information contents (for example writing possibility) based on one or a plurality of detection holes formed in the cartridge, on the basis of an open/closed state of the detection hole and a result of the disk type using a signal based on reflected light from the loaded recording medium.
摘要翻译：一种能够对各种类型的盘进行类型确定和写入可能性确定的记录介质。当检测孔处于关闭状态时，用于打开和关闭盒的检测孔的打开和关闭装置在检测孔的位置处形成具有与盒的基准平面基本水平的平面。该盒具有形成在其中的至少第一检测孔和第二检测孔。第二检测孔（H 1）由打开和关闭装置打开和关闭，并且第一检测孔（H 0）始终处于打开状态。磁盘驱动装置或磁盘确定方法基于盘的类型，基于打开/关闭状态确定基于形成在盒中的一个或多个检测孔的信息内容（例如书写可能性）检测孔和使用基于来自加载的记录介质的反射光的信号的盘类型的结果。

8. 发明申请

US20050201216A1 Recording medium driving device 失效
公开(公告)号：US20050201216A1
公开(公告)日：2005-09-15
申请号：US11105034
申请日：2005-04-12
申请人： Tokio Kanada , Mikinori Matsuda
发明人： Tokio Kanada , Mikinori Matsuda
IPC分类号： G11B17/04 , G11B7/00
CPC分类号： G11B17/043 , G11B17/051
摘要： A driving device includes a holder (16) movably carried by a chassis (5) and adapted for transporting a disc cartridge the holder holds between an insertion/ejection position and a loading position, and an ejection lever (39) for ejecting the disc cartridge from the holder (16). The driving device also includes a slider (31) movable in a direction of inserting the disc cartridge into the holder (16) and in a direction of ejecting the disc cartridge from the holder. The slider causes the holder (16) to be moved to the loading position when the slider is moved in the disc cartridge inserting direction, while causing the holder (16) to be moved to the insertion/ejection position when the slider is moved in the disc cartridge ejecting direction. The driving device also includes a spring member (45) provided between the ejection lever (39) and the slider (31) for biasing the ejection lever (39) in a direction of ejecting the disc cartridge from the holder (16) and for biasing the slider (31) in the disc cartridge inserting direction.

9. 发明授权

US5485445A Disc driving apparatus having means for placing a read record head at a predetermined position in the innermost region of a disc 失效
标题翻译：盘驱动装置具有用于将读记录头放置在盘的最内区域中的预定位置的装置
公开(公告)号：US5485445A
公开(公告)日：1996-01-16
申请号：US252069
申请日：1994-06-01
申请人： Hiroshi Oinoue , Tokio Kanada
发明人： Hiroshi Oinoue , Tokio Kanada
IPC分类号： G11B7/085 , G11B21/08 , G11B3/90
CPC分类号： G11B7/08505
摘要： A disc driving apparatus comprising an optical head as a record/reproduce means for recording information on and/or reproduce the same optically from a disc type recording medium;a feed motor as a feed means for moving the optical head toward the innermost or outermost region of the disc; a limit switch as a detector means for detecting that the optical head is placed at a first position proximate to the innermost region of the disc; and a butt member as a positioning means formed to butt against the optical head for limiting the motion of the optical head at a second position in the innermost region of the disc. The speed of the optical head being moved toward the innermost region of the disc by means of the feed motor is changed to a lower speed in synchronism with turn-on of the limit switch, and then the optical head is brought to a halt at the predetermined position limited by the butt member, whereby the optical head is placed exactly at the desired position.
摘要翻译：一种盘驱动装置，包括光头作为记录/再现装置，用于从盘式记录介质光学地记录信息和/或从光盘类型记录介质再现光学头;和作为进给装置的进给电机，用于将光头朝向最内侧或最外侧区域移动的光盘作为用于检测光学头被放置在靠近盘的最内区域的第一位置处的检测器装置的限位开关; 以及作为定位装置的对接构件，其形成为抵靠光学头，用于限制光学头在盘的最内部区域中的第二位置的运动。通过进给电动机将光头移动到盘的最内区域的速度与限位开关的接通同步地变为较低速度，然后使光头在由对接构件限制的预定位置，由此将光学头准确地放置在所需位置。

10. 发明授权

US5091812A Stabilizing apparatus for recording and/or reproducing apparatus of flexible rotary recording medium 失效
标题翻译：用于记录和/或复制柔性旋转记录介质装置的稳定装置
公开(公告)号：US5091812A
公开(公告)日：1992-02-25
申请号：US388850
申请日：1989-08-03
申请人： Tokio Kanada
发明人： Tokio Kanada
IPC分类号： G11B17/32 , G11B17/34
CPC分类号： G11B17/32
摘要： A disk stabilizing apparatus employs a low friction pad for restricting the magnitude of curving of the radially outward portion of the disk. The low friction pad is oriented at an upstream portion of a stabilizer plate in a rotating direction of the disk. In addition, the apparatus further employs a stabilizer plate which is tilted upwardly toward the downstream direction in the rotating direction of the disk.
摘要翻译：盘稳定装置采用低摩擦垫来限制盘径向向外部分弯曲的大小。低摩擦垫沿着盘的旋转方向定向在稳定板的上游部分。此外，该装置还采用在盘的旋转方向上朝向下游方向向上倾斜的稳定板。

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