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1. 再颁专利

USRE40928E1 Optical pickup 有权
公开(公告)号：USRE40928E1
公开(公告)日：2009-10-06
申请号：US11645328
申请日：2006-12-26
申请人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi
发明人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi
IPC分类号： G11B7/00
CPC分类号： G11B7/0932 , G11B7/093 , G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B7/22
摘要： An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted. An inclining fulcrum and a height adjusting means for inclining the objective-lens driving device about the inclining fulcrum are provided in the vicinities of the through hole.

2. 再颁专利

USRE38648E1 Magneto-optical recording/reproducing pickup head with a diffraction grating and a wollaston prism 失效
$Magneto-optical recording/reproducing pickup head with a diffraction grating and a wollaston prism$
标题翻译：具有衍射光栅和渥拉斯顿棱镜的磁光记录/再现拾取头
公开(公告)号：USRE38648E1
公开(公告)日：2004-11-09
申请号：US09060877
申请日：1998-04-16
申请人： Kazunori Hirose , Mitsuru Kinouchi
发明人： Kazunori Hirose , Mitsuru Kinouchi
IPC分类号： G11B700
CPC分类号： G11B7/1356 , G11B7/22 , G11B11/10543
摘要： A light source for generating light beams, a diffraction grating for splitting the light beam emitted from the light source into at least three light beams, and an objective lens for receiving the reflecting light beams from the recording medium, the magnification of the objective lens being −6.0 to less than −12.0, make up a collimatorless optical system. The reflecting light beams emanating from the objective lens are split by a beam splitter, these split light beams are each split into at least three light beams by a Wollaston prism, and are incident on a photo detecting element. A tracking error signal, a focusing error signal, and a magneto-optical signal are generated using the light beams received by the photo detecting element. The beam splitter and the Wollaston prism may be substituted by a multifunctional Wollaston prism. If the nine split light beams are all received by the photo detecting element, the signals produced by the photo detecting element are large in amplitude.

3. 发明授权

US6084834A Optical pickup with a compact design 失效
标题翻译：光学拾音器设计紧凑
公开(公告)号：US6084834A
公开(公告)日：2000-07-04
申请号：US994560
申请日：1997-12-19
申请人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi
发明人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi
IPC分类号： G11B7/08 , G11B7/09 , G11B7/095 , G11B7/22 , G11B17/04 , G11B7/00
CPC分类号： G11B17/04 , G11B7/082 , G11B7/093 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/22 , G11B7/0956
摘要： An optical pickup includes an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted. An inclining fulcrum and a height adjusting means for inclining the objective-lens driving device about the inclining fulcrum are provided in the vicinities of the through hole.
摘要翻译：光拾取器包括物镜驱动装置，该物镜驱动装置包括设置有物镜的可移动部分，聚焦线圈和跟踪线圈，以及设置有具有磁隙的单个磁路的固定部分，聚焦线圈和跟踪线圈设置在磁隙中。跟踪驱动力的应用点，发生在磁隙内外的聚焦驱动力的结果力的施加点和可移动部分的重心位置基本上与彼此。此外，物镜和磁路设置在光盘的下壳体内的窗口的区域内。此外，用于容纳磁路的磁轭的下部的通孔设置在安装有物镜驱动装置的安装基座中。在通孔附近设置倾斜支点和用于使物镜驱动装置围绕倾斜支点倾斜的高度调节装置。

4. 发明授权

US5877904A Optical pickup 失效
标题翻译：光学拾音
公开(公告)号：US5877904A
公开(公告)日：1999-03-02
申请号：US888232
申请日：1997-07-03
申请人： Noriyuki Kawano , Mitsuru Kinouchi , Nobuo Uekusa , Hiroyuki Matsuura
发明人： Noriyuki Kawano , Mitsuru Kinouchi , Nobuo Uekusa , Hiroyuki Matsuura
IPC分类号： G11B7/08 , G11B7/09 , G11B7/095 , G11B7/22 , G11B17/04 , G02B7/02
CPC分类号： G11B17/04 , G11B7/082 , G11B7/093 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/22 , G11B7/0956
摘要： An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted. An inclining fulcrum and a height adjusting component for inclining the objective-lens driving device about the inclining fulcrum are provided in the vicinities of the through hole.
摘要翻译：光拾取器包括物镜驱动装置，该物镜驱动装置包括设置有物镜的可移动部分，聚焦线圈和跟踪线圈，以及设置有具有磁隙的单个磁路的固定部分，聚焦线圈和跟踪线圈设置在磁隙中。跟踪驱动力的应用点，发生在磁隙内外的聚焦驱动力的结果力的施加点和可移动部分的重心位置基本上与彼此。此外，物镜和磁路设置在光盘的下壳体内的窗口的区域内。此外，用于容纳磁路的磁轭的下部的通孔设置在安装有物镜驱动装置的安装基座中。在通孔附近设置倾斜支点和用于使物镜驱动装置围绕倾斜支点倾斜的高度调节部件。

5. 发明授权

US06463019B2 Optical pickup 有权
标题翻译：光学拾音
公开(公告)号：US06463019B2
公开(公告)日：2002-10-08
申请号：US09905870
申请日：2001-07-17
申请人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi , Nobuo Uekusa , Hiroyuki Matsuura
发明人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi , Nobuo Uekusa , Hiroyuki Matsuura
IPC分类号： G11B700
CPC分类号： G11B17/04 , G11B7/082 , G11B7/093 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B7/22
摘要： An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted. An inclining fulcrum and a height adjusting means for inclining the objective-lens driving device about the inclining fulcrum are provided in the vicinities of the through hole.
摘要翻译：光拾取器包括物镜驱动装置，该物镜驱动装置包括设置有物镜的可移动部分，聚焦线圈和跟踪线圈，以及设置有具有磁隙的单个磁路的固定部分，聚焦线圈和跟踪线圈设置在磁隙中。跟踪驱动力的应用点，发生在磁隙内外的聚焦驱动力的结果力的施加点和可移动部分的重心位置基本上与彼此。此外，物镜和磁路设置在光盘的下壳体内的窗口的区域内。此外，用于容纳磁路的磁轭的下部的通孔设置在安装有物镜驱动装置的安装基座中。在通孔附近设置倾斜支点和用于使物镜驱动装置围绕倾斜支点倾斜的高度调节装置。

6. 发明授权

US5724337A Optical pickup with a compact design 失效
标题翻译：光学拾音器设计紧凑
公开(公告)号：US5724337A
公开(公告)日：1998-03-03
申请号：US810340
申请日：1997-02-27
申请人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi , Nobuo Uekusa , Hiroyuki Matsuura
发明人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi , Nobuo Uekusa , Hiroyuki Matsuura
IPC分类号： G11B7/08 , G11B7/09 , G11B7/095 , G11B7/22 , G11B17/04 , G11B17/00 , G11B7/00 , G11B21/16
CPC分类号： G11B17/04 , G11B7/082 , G11B7/093 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/22 , G11B7/0956
摘要： An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted. An inclining fulcrum and a height adjusting means for inclining the objective-lens driving device about the inclining fulcrum are provided in the vicinities of the through hole.
摘要翻译：光拾取器包括物镜驱动装置，该物镜驱动装置包括设置有物镜的可移动部分，聚焦线圈和跟踪线圈，以及设置有具有磁隙的单个磁路的固定部分，聚焦线圈和跟踪线圈设置在磁隙中。跟踪驱动力的应用点，发生在磁隙内外的聚焦驱动力的结果力的施加点和可移动部分的重心位置基本上与彼此。此外，物镜和磁路设置在光盘的下壳体内的窗口的区域内。此外，用于容纳磁路的磁轭的下部的通孔设置在安装有物镜驱动装置的安装基座中。在通孔附近设置倾斜支点和用于使物镜驱动装置围绕倾斜支点倾斜的高度调节装置。

7. 发明授权

US06288984B1 Optical pickup 有权
公开(公告)号：US06288984B1
公开(公告)日：2001-09-11
申请号：US09576907
申请日：2000-05-23
申请人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi , Nobuo Uekusa , Hiroyuki Matsuura
发明人： Noriyuki Kawano , Kouichi Ogura , Yoshio Saito , Mitsuru Kinouchi , Nobuo Uekusa , Hiroyuki Matsuura
IPC分类号： G11B700
CPC分类号： G11B17/04 , G11B7/082 , G11B7/093 , G11B7/0932 , G11B7/0933 , G11B7/0935 , G11B7/0956 , G11B7/22
摘要： An optical pickup comprises an objective-lens driving device including a movable section provided with an objective lens, a focusing coil, and tracking coils, and a fixed section provided with a single magnetic circuit having a magnetic gap, the focusing coil and the tracking coils being disposed in the magnetic gap. The point of application of a tracking-driving force, the point of application of a result force of focusing-driving forces occurring in and outside the magnetic gap, and the position of the center of gravity of the movable section are made to substantially coincide with each other. In addition, the objective lens and the magnetic circuit are disposed within an area of a window in a lower shell of a optical disk. Further, a through hole for accommodating a lower portion of a yoke of the magnetic circuit is provided in a mounting base on which the objective-lens driving device is mounted. An inclining fulcrum and a height adjusting means for inclining the objective-lens driving device about the inclining fulcrum are provided in the vicinities of the through hole.

8. 发明授权

US5508992A Magneto-optical recording/reproducing pickup head with a diffraction grating and a wollaston prism 失效
$Magneto-optical recording/reproducing pickup head with a diffraction grating and a wollaston prism$
标题翻译：具有衍射光栅和渥拉斯顿棱镜的磁光记录/再现拾取头
公开(公告)号：US5508992A
公开(公告)日：1996-04-16
申请号：US314716
申请日：1994-09-29
申请人： Kazunori Hirose , Mitsuru Kinouchi
发明人： Kazunori Hirose , Mitsuru Kinouchi
IPC分类号： G11B7/00 , G11B7/135 , G11B7/22 , G11B11/105 , G11B7/08 , G11B11/10
CPC分类号： G11B7/1356 , G11B11/10543 , G11B7/22
摘要： A light source for generating light beams, a diffraction grating for splitting the light beam emitted from the light source into at least three light beams, and an objective lens for receiving the reflecting light beams from the recording medium, the magnification of the objective lens being -6.0 to -12.0, make up a collimatorless optical system. The reflecting light beams emanating from the objective lens are split by a beam splitter, these split light beams are each split into at least three light beams by a Wollaston prism, and are incident on a photo detecting element. A tracking error signal, a focusing error signal, and a magneto-optical signal are generated using the light beams received by the photo detecting element. The beam splitter and the Wollaston prism may be substituted by a multifunctional Wollaston prism. If the nine split light beams are all received by the photo detecting element, the signals produced by the photo detecting element are large in amplitude.
摘要翻译：用于产生光束的光源，用于将从光源发射的光束分成至少三个光束的衍射光栅以及用于接收来自记录介质的反射光束的物镜，物镜的放大倍率为 -6.0至-12.0，组成一个无准直光学系统。从物镜发出的反射光束被分束器分开，这些分束光束通过Wollaston棱镜分成至少三个光束，并入射到光检测元件上。使用由光检测元件接收的光束产生跟踪误差信号，聚焦误差信号和磁光信号。分束器和Wollaston棱镜可以被多功能Wollaston棱镜代替。如果九个分离光束全部被光电检测元件接收，则由光电检测元件产生的信号幅度大。

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