-
公开(公告)号：US06396662B1
公开(公告)日：2002-05-28
申请号：US09521362
申请日：2000-03-08
申请人： Tomohiko Osaka , Norikazu Kudo
发明人： Tomohiko Osaka , Norikazu Kudo
IPC分类号： G11B560
CPC分类号： G11B5/6005 , G11B5/00 , G11B5/016 , G11B5/10 , G11B5/48 , G11B5/4886 , G11B5/58 , G11B17/32
摘要： A magnetic head has a first magnetic head unit for recording and reproducing information to and from a first flexible rotating recording medium; a second magnetic head unit for recording and reproducing information to and from a second flexible rotating recording medium having a coercive force lower than a coercive force of the first flexible rotating recording medium; and a slider supporting the first and second magnetic head units, the slider having a central groove separating a first air bearing surface at which the first magnetic head unit is provided and a second air bearing surface at which the second magnetic head unit is provided, the slider generating an elevating force from an air flow generated in a space between the first and second air bearing surfaces and the flexible rotating recording medium, the first air bearing surface having a width on a leading edge side thereof perpendicular to a direction of approach of the flexible rotating recording medium and a width on a trailing edge side thereof disposed opposite the leading edge side, the width of the leading edge side being greater than the width of the trailing edge side.
摘要翻译： 磁头具有用于向第一柔性旋转记录介质记录和再现信息的第一磁头单元; 第二磁头单元，用于向具有低于第一柔性旋转记录介质的矫顽力的矫顽力的第二柔性旋转记录介质记录和再现信息; 以及滑动器，其支撑所述第一和第二磁头单元，所述滑块具有分离设置有所述第一磁头单元的第一空气轴承表面的中心槽和设置所述第二磁头单元的第二空气支承表面， 滑块产生从在第一和第二空气轴承表面之间的空间中产生的空气流和柔性旋转记录介质的升力，第一空气轴承表面在其前缘侧上具有垂直于接近的方向的宽度 柔性旋转记录介质和与前缘侧相对设置的后缘侧的宽度，前缘侧的宽度大于后缘侧的宽度。
-
2.发明授权Magnetic head for reading from and writing to a rotated magnetic disc in an elevated state produced by air flow and structure for supporting same 失效用于在由气流产生的升高状态下读取和写入旋转磁盘的磁头和用于支撑其的结构的磁头公开(公告)号：US06222703B1
公开(公告)日：2001-04-24
申请号：US09232127
申请日：1999-01-15
申请人： Tomohiko Osaka , Norikazu Kudo
发明人： Tomohiko Osaka , Norikazu Kudo
IPC分类号： G11B560
CPC分类号： G11B5/6005 , G11B5/016 , G11B5/488 , G11B5/4886 , G11B5/581 , G11B17/32
摘要： A slider of a magnetic head is provided with first and second magnetic head parts, and a central groove so that first and second air bearing surfaces separate from each other are formed. An air flow produced between the air bearing surfaces, and a magnetic disk creates an elevating force. A width of the first air bearing surface at the leading edge is controlled to be larger than a width at the trailing edge.
摘要翻译： 磁头的滑动件设置有第一和第二磁头部分以及中心凹槽，从而形成彼此分开的第一和第二空气轴承表面。 在空气轴承表面和磁盘之间产生的空气流产生升力。 前缘处的第一空气轴承表面的宽度被控制为大于后缘处的宽度。
-
公开(公告)号：US06400528B1
公开(公告)日：2002-06-04
申请号：US09488804
申请日：2000-01-21
申请人： Tomohiko Osaka , Norikazu Kudo
发明人： Tomohiko Osaka , Norikazu Kudo
IPC分类号： G11B560
CPC分类号： G11B5/6005 , G11B21/21
摘要： A magnetic head is provided with first and second magnetic head units and a slider on which is formed a central groove that divides the slider into first and second air bearing surfaces and which generates an air flow between a rotating magnetic disk and the first and second air bearing surfaces. Further, the magnetic head is characterized in that a distance YH from a center of a track of the first magnetic head unit to an edge of the first air bearing surface in a direction of travel of the recording medium, and a distance XH from a center of a track of the first magnetic head unit to an edge of the first air bearing surface in a direction perpendicular to the direction of travel of the recording medium, are such that 0.01 mm≦YH≦0.1 mm and 0.01 mm≦XH0.1 mm.
摘要翻译： 磁头设置有第一和第二磁头单元和滑块，在该滑块上形成有将滑块分成第一和第二空气轴承表面并在旋转磁盘与第一和第二空气之间产生空气流的中心凹槽 轴承表面。 此外，磁头的特征在于，从第一磁头单元的轨道的中心到记录介质的行进方向上的第一空气轴承表面的边缘的距离YH以及距离中心的距离XH 第一磁头单元的轨迹沿着与记录介质的行进方向垂直的方向到第一空气轴承表面的边缘，使得0.01mm <= YH <= 0.1mm和0.01mm <= XH0 .1毫米。
-
公开(公告)号：US10746957B2
公开(公告)日：2020-08-18
申请号：US16091559
申请日：2016-04-05
申请人： Tomohiko Osaka , Norikazu Kudo
发明人： Tomohiko Osaka , Norikazu Kudo
摘要： A lens driving device according to the present invention is a lens driving device that includes an auto-focus coil and an auto-focus magnet and that moves a movable auto-focus unit including the auto-focus coil in the direction of an optical axis relative to a fixed auto-focus unit including the auto-focus magnet by using a driving force of a voice coil motor constituted of the auto-focus coil and the auto-focus magnet. The fixed auto-focus unit includes a case formed of a non-magnetic material and having a rectangular shape in plan view and a base on which the case is fixed. The auto-focus magnet has the shape of a flat plate disposed on a side face of the case, and at least one of the four side faces of the case is a non-magnet-disposed face, on which the auto-focus magnet is not disposed.
-
公开(公告)号：US06359753B1
公开(公告)日：2002-03-19
申请号：US09458127
申请日：1999-12-09
申请人： Tomohiko Osaka , Norikazu Kudo
发明人： Tomohiko Osaka , Norikazu Kudo
IPC分类号： G11B560
CPC分类号： G11B5/6005 , G11B21/21
摘要： A magnetic head including first and second magnetic head units for recording to and reproducing from a first and second flexible rotating recording medium; the second flexible rotating recording medium having a coercive force lower than a coercive force of the first flexible rotating recording medium; a slider, supporting the first magnetic head unit, and having a central groove separating first and second air bearing surfaces, at which the first and second magnetic heads, respectively, are provided. The slider generates an elevating force from air currents generated in a space between the first and second air bearing surfaces and the flexible rotating recording media. The first air bearing surface has a width dimension A1 located on a leading edge side of the magnetic head and substantially perpendicular to a rotating direction from which the first or second flexible rotating recording medium approaches the magnetic head, and a width dimension A2 located on a trailing edge side thereof and substantially perpendicular to the rotating direction, the width dimension A1 being larger than the width dimension A2. An elevating force control slot formed on at least the first air bearing surface can extend in a direction substantially perpendicular to the rotating direction, from which the first or second flexible rotating recording medium approaches the magnetic head, which is essentially identical to the direction from the leading edge toward the trailing edge of the magnetic head, the elevating force control slot having a depth D1, adjacent the central groove, and a depth D2, adjacent the leading edge, the dimension of D2 being greater than the dimension D1.
摘要翻译： 一种磁头，包括用于记录到第一和第二柔性旋转记录介质并从其再现的第一和第二磁头单元; 所述第二柔性旋转记录介质具有低于所述第一柔性旋转记录介质的矫顽力的矫顽力; 支撑第一磁头单元的滑块，并且具有分别设置第一和第二磁头的第一和第二空气支承表面的中心槽。 滑块产生从在第一和第二空气轴承表面之间的空间和柔性旋转记录介质中产生的气流的升力。 第一空气轴承表面具有位于磁头的前缘侧上的大致垂直于第一或第二柔性旋转记录介质接近磁头的旋转方向的宽度尺寸A1，以及位于 其后缘侧并且大致垂直于旋转方向，宽度尺寸A1大于宽度尺寸A2。 形成在至少第一空气支承表面上的升降力控制槽可以在基本上垂直于旋转方向的方向上延伸，第一或第二柔性旋转记录介质从该方向接近磁头，该磁头基本上等于从 前缘朝向磁头的后缘，升降力控制槽具有与中心槽相邻的深度D1和与前缘相邻的深度D2，D2的尺寸大于尺寸D1。
-
公开(公告)号：US06243232B1
公开(公告)日：2001-06-05
申请号：US09456705
申请日：1999-12-09
申请人： Tomohiko Osaka , Norikazu Kudo
发明人： Tomohiko Osaka , Norikazu Kudo
IPC分类号： G11B2121
CPC分类号： G11B5/6005 , G11B21/21
摘要： A magnetic head has first and second magnetic head units for recording to and reproducing from first and second flexible rotating recording media; a slider supporting the first magnetic head unit, the slider having a central groove separating a first air bearing surface at which the first magnetic head unit is provided and a second air bearing surface at which the second magnetic head unit is provided, the slider generating an elevating force from an air flow generated in a space between the first and second air bearing surfaces and the flexible rotating recording media; an elevating force control slot formed on at least the first air bearing surface so as to extend in a direction substantially perpendicular to the direction from which the first or second flexible rotating recording medium approaches the magnetic head; the first air bearing surface having a width dimension A1 located on a leading edge side of the magnetic head, and a width dimension A2 located on a trailing edge side, the width dimension A1 being larger than the width dimension A2; and an incision formed on the slider so as to penetrate in a direction of a height of the slider and determine the width dimension A2 of the trailing edge side of the first air bearing surface, the incision, elevating force control slot and central groove forming a single continuous structure, a leading edge of the incision positioned within a formation region of the elevating force control slot.
摘要翻译： 磁头具有用于记录到第一和第二柔性旋转记录介质并从其再现的第一和第二磁头单元; 支撑第一磁头单元的滑块，滑块具有分隔设置有第一磁头单元的第一空气轴承表面的中心槽和设置有第二磁头单元的第二空气轴承表面，滑块产生一个 来自在第一和第二空气轴承表面之间的空间中产生的空气流和柔性旋转记录介质的升力; 形成在至少所述第一空气支承面上的升降力控制槽，以沿与所述第一或第二柔性旋转记录介质接近所述磁头的方向基本垂直的方向延伸; 第一空气轴承表面具有位于磁头的前缘侧的宽度尺寸A1和位于后缘侧的宽度尺寸A2，宽度尺寸A1大于宽度尺寸A2; 以及形成在所述滑块上以沿所述滑块的高度方向穿透的切口，并且确定所述第一空气轴承表面的后缘侧的宽度尺寸A2，所述切口，升降力控制槽和形成一个 单个连续结构，切口的前缘位于升降力控制槽的形成区域内。
-
公开(公告)号：US12111460B2
公开(公告)日：2024-10-08
申请号：US17595524
申请日：2020-05-22
申请人： Tomohiko Osaka , Ichiro Hayashi , Atsushi Kikuchi
发明人： Tomohiko Osaka , Ichiro Hayashi , Atsushi Kikuchi
CPC分类号： G02B26/0875 , G02B3/14 , G02B26/004 , G03B13/36 , G03B30/00 , H02K41/0356 , G02B27/646 , G03B2205/0007 , G03B2205/0069
摘要： This lens driving device is configured separately from a lens unit including a liquid lens, and is provided with: a fixed part; a movable part; a support part that supports the movable part with respect to the fixed part; a driving unit that is formed from a voice coil motor comprising a coil and a magnet and that moves the movable part in an optical axis direction with respect to the fixed part; and a lens deformation unit that is connected to the movable part and that applies, in association with the movement of the movable part, a force to the liquid lens in the optical axis direction. The movable part has a plurality of movable units, and the driving unit drives the movable units independently so as to change the curvature of the liquid lens or to change the optical axis of the liquid lens.
-
公开(公告)号：US10750062B2
公开(公告)日：2020-08-18
申请号：US16011669
申请日：2018-06-19
申请人： Tomohiko Osaka , Takashi Ishizawa
发明人： Tomohiko Osaka , Takashi Ishizawa
摘要： Provided are a lens driving device, a camera module, and a camera-mounted device for which the miniaturization and weight reduction can be achieved and the reliability can also be improved. The lens driving device includes auto-focusing and shake-correcting driving parts utilizing a voice coil motor. An autofocus fixing part includes a Hall element configured to detect a position of an autofocus movable part in the optical-axis direction, and the autofocus movable part includes a position-detecting magnet arranged near the Hall element. Both of an auto-focusing magnet part and the position-detecting magnet are radially magnetized.
-
公开(公告)号：US10451834B2
公开(公告)日：2019-10-22
申请号：US15318388
申请日：2015-05-27
申请人： Tomohiko Osaka , Takashi Ishizawa
发明人： Tomohiko Osaka , Takashi Ishizawa
IPC分类号： G02B7/09 , H04N5/225 , G02B7/08 , H02K41/035 , G02B27/64
摘要： In a lens holder driving device, each of an upper plate spring and a lower plate spring, which are respectively provided on an upper side and a lower side of a lens holder, has an inner peripheral side end fixed to the lens holder, an outer peripheral side end fixed to a fixing part, and a plurality of arms. The plurality of arms of the upper plate spring and the plurality of arms of the lower plate spring have substantially identical shapes in a plan view. Each of the plurality of arms includes at least one U-turn shaped portion that is folded over. Either the upper plate spring or the lower plate spring has at least one stretchable and flexible resin that is provided so as to straddle over the mutually opposing parts of the U-turn shaped portion of the plurality of arms.
-
公开(公告)号：US08531789B2
公开(公告)日：2013-09-10
申请号：US13031764
申请日：2011-02-22
申请人： Tomohiko Osaka , Keiichi Sato , Takashi Uemura
发明人： Tomohiko Osaka , Keiichi Sato , Takashi Uemura
IPC分类号： G02B27/00
摘要： A leaf spring supports a pillar shaped movable portion disposed in a center portion with respect to a cylindrical fixed portion disposed around the movable portion in the direction of a center axis shiftably so as to position the movable portion in a radial direction. The leaf spring is made of stainless steel having relative magnetic permeability which is not less than 1.1.
摘要翻译： 板簧支撑相对于可移动部分设置在可移动部分周围的圆柱形固定部分的中心部分的可移动的支柱形可动部分，以便可移动部分沿径向定位。 板簧由不锈钢制成，具有不小于1.1的相对导磁率。
-
-
-
-
-
-
-
-
-
搜索结果
51 条记录 (耗时 0.202 秒)
