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1. 发明授权

US07050265B2 Negative pressure type rotary head drum unit and magnetic tape drive using the same 失效
标题翻译：负压型旋转磁头鼓单元和磁带驱动器使用相同
公开(公告)号：US07050265B2
公开(公告)日：2006-05-23
申请号：US10368727
申请日：2003-02-18
申请人： Masayuki Kondo , Tadashi Ozue
发明人： Masayuki Kondo , Tadashi Ozue
IPC分类号： G11B5/52
CPC分类号： G11B5/534
摘要： Disclosed herein is a rotary head drum unit including a cylindrical drum surface and a magnetic head for recording/reproducing a signal to/from a magnetic tape running along the drum surface. The magnetic head has a tape sliding surface adapted to come into sliding contact with the magnetic tape. The tape sliding surface of the magnetic head is positioned at a level lower than the height of the magnetic tape flying above the drum surface. The magnetic tape is brought into contact with the tape sliding surface by negative pressure. With this configuration, an increase in contact pressure of the magnetic tape sliding on the tape sliding surface of the magnetic head can be prevented and the contact pressure can be uniformed to thereby prevent a reduction and variations in magnetic recording or reproduction output.
摘要翻译：本文公开了一种旋转磁头鼓单元，其包括圆柱形鼓表面和用于向沿着磁鼓表面运行的磁带记录/再现信号的磁头。磁头具有适于与磁带滑动接触的磁带滑动面。磁头的磁带滑动面位于比磁带表面上方磁带高度低的位置。磁带通过负压与胶带滑动面接触。利用这种结构，可以防止滑动在磁头的磁带滑动表面上的磁带的接触压力的增加，并且可以使接触压力均匀，从而防止磁记录或再现输出的减小和变化。

2. 发明授权

US07457079B2 Magnetic head with rectangular-shaped planar spiral coil and leading core width smaller than trailing core width 失效
标题翻译：具有矩形平面螺旋线圈的磁头和引导芯宽小于后芯宽度
公开(公告)号：US07457079B2
公开(公告)日：2008-11-25
申请号：US10606108
申请日：2003-06-25
申请人： Kazushi Ogawa , Teiichi Miyauchi , Tadashi Ozue
发明人： Kazushi Ogawa , Teiichi Miyauchi , Tadashi Ozue
IPC分类号： G11B5/17 , G11B5/255 , G11B5/31 , G11B5/53 , G11B5/265 , G11B5/39
CPC分类号： G11B5/3967 , G11B5/23 , G11B5/2452 , G11B5/3106 , G11B5/3109 , G11B5/3116 , G11B5/312 , G11B5/313 , G11B5/3146 , G11B5/3156 , G11B5/3903 , G11B5/4886 , G11B5/4893 , G11B5/53
摘要： A thin film magnetic recording head comprises a substrate, a first magnetic core formed on the substrate, a second magnetic core having the front end face with a magnetic gap with respect to the front end face of the first magnetic core, and a coil for developing magnetic flux between the front end portions of the magnetic cores. A width of the second magnetic core at the front end portion thereof is chosen to be smaller than that of the first magnetic core. The second magnetic core is at a leading position relative to the second magnetic core in a traveling direction on a recording medium. In such configuration, it is possible to reduce side erase due to recording magnetic flux fringing and to achieve high density of magnetic recording while maintaining the conventional fabrication steps for the thin film magnetic recording head, thereby avoiding the problem in the fabrication.
摘要翻译：薄膜磁记录头包括基板，形成在基板上的第一磁芯，具有相对于第一磁芯的前端面具有磁隙的前端面的第二磁芯和用于显影的线圈磁芯的前端部之间的磁通量。第二磁芯在其前端部分的宽度被选择为小于第一磁芯的宽度。第二磁芯相对于第二磁芯在记录介质上的行进方向上处于前导位置。在这种结构中，由于记录磁通边缘而可能减少侧面擦除并且在保持薄膜磁记录头的常规制造步骤的同时实现高密度的磁记录，从而避免了制造中的问题。

3. 发明授权

US07324303B2 Magnetic recording/reproducing head with head elements displaced in both head width and lamination directions 失效
标题翻译：磁头记录/再现头，其头部元件在头部宽度和层压方向上移位
公开(公告)号：US07324303B2
公开(公告)日：2008-01-29
申请号：US11653806
申请日：2007-01-16
申请人： Tadashi Ozue , Yutaka Soda
发明人： Tadashi Ozue , Yutaka Soda
IPC分类号： G11B5/265 , G11B5/29 , G11B5/31 , G11B5/39
CPC分类号： G11B5/3951 , G11B5/115 , G11B5/295 , G11B5/3103 , G11B5/3116 , G11B5/3163 , G11B5/3903 , G11B5/3912 , G11B5/3967 , G11B5/488 , G11B5/4886 , G11B5/4893 , G11B5/4976 , G11B5/531 , G11B5/534
摘要： A magnetic recording/reproducing head having a plurality of magnetic head elements for multi-channeling capable of achieving high density recording/reproducing capability, including: a plurality of magnetic recording/reproducing head layers each including magnetic recording/reproducing head elements fabricated by a thin film process and interposed between two insulating/magnetic shielding layers laminated on a non-magnetic substrate; the total of magnetic recording/reproducing head elements formed therein are displaced from each other in a head width direction, and each magnetic recording/reproducing head layer has a plurality of magnetic recording/reproducing head elements formed at a predetermined pitch.
摘要翻译：一种具有多个能够实现高密度记录/再现能力的多通道磁头元件的磁记录/再现头，包括：多个磁记录/再现头层，每个磁记录/再现头层包括由薄的并且介于层叠在非磁性基板上的两个绝缘/磁屏蔽层之间; 形成在其中的磁记录/再现头元件的总和在磁头宽度方向上彼此偏移，并且每个磁记录/再现磁头层具有以预定间距形成的多个磁记录/再现磁头元件。

4. 发明申请

US20070109682A1 Magnetic recording/reproducing head with head elements displaced in both head width and lamination directions 失效
标题翻译：磁头记录/再现头，其头部元件在头部宽度和层压方向上移位
公开(公告)号：US20070109682A1
公开(公告)日：2007-05-17
申请号：US11653806
申请日：2007-01-16
申请人： Tadashi Ozue , Yutaka Soda
发明人： Tadashi Ozue , Yutaka Soda
IPC分类号： G11B5/127 , G11B5/265
CPC分类号： G11B5/3951 , G11B5/115 , G11B5/295 , G11B5/3103 , G11B5/3116 , G11B5/3163 , G11B5/3903 , G11B5/3912 , G11B5/3967 , G11B5/488 , G11B5/4886 , G11B5/4893 , G11B5/4976 , G11B5/531 , G11B5/534
摘要： A magnetic recording/reproducing head having a plurality of magnetic head elements for multi-channeling capable of achieving high density recording/reproducing capability, including: a plurality of magnetic recording/reproducing head layers each including magnetic recording/reproducing head elements fabricated by a thin film process and interposed between two insulating/magnetic shielding layers laminated on a non-magnetic substrate; the total of magnetic recording/reproducing head elements formed therein are displaced from each other in a head width direction, and each magnetic recording/reproducing head layer has a plurality of magnetic recording/reproducing head elements formed at a predetermined pitch.
摘要翻译：一种具有多个能够实现高密度记录/再现能力的多通道磁头元件的磁记录/再现头，包括：多个磁记录/再现头层，每个磁记录/再现头层包括由薄的并且介于层叠在非磁性基板上的两个绝缘/磁屏蔽层之间; 形成在其中的磁记录/再现头元件的总和在磁头宽度方向上彼此偏移，并且每个磁记录/再现磁头层具有以预定间距形成的多个磁记录/再现磁头元件。

5. 发明授权

US07002777B2 Tape drive head with lower core layer side inclined at angle equal to or greater than azimuth angle and aligned with upper core layer edge 失效
标题翻译：带驱动头，下芯层侧倾斜角度等于或大于方位角，并与上芯层边缘对齐
公开(公告)号：US07002777B2
公开(公告)日：2006-02-21
申请号：US10673004
申请日：2003-09-26
申请人： Kazushi Ogawa , Tadashi Ozue , Teiichi Miyauchi
发明人： Kazushi Ogawa , Tadashi Ozue , Teiichi Miyauchi
IPC分类号： G11B5/31 , G11B5/52 , G11B21/04
CPC分类号： G11B5/3116 , G11B5/00813 , G11B5/187
摘要： A thin film magnetic head, in which: a magnetic gap thereof is disposed slantingly relative to a direction orthogonal to a scanning direction of the head corresponding to an azimuth angle; an upper magnetic core layer is positioned on a leading side preceding a lower magnetic core layer in a scanning direction of the head, a protrusion on the lower magnetic core layer has an inclined side surface inclined at an angle equal to or greater than the azimuth angle at least on one side surface in a direction of a track width thereof, and at least one edge of a side adjacent to the magnetic gap of a protrusion on the upper magnetic core layer is aligned on a line drawn extending from the inclined side surface of the lower magnetic core layer, thereby suppressing occurrence of side erasing in a magnetic recording medium during azimuth recording.
摘要翻译：一种薄膜磁头，其中：其磁隙相对于与方位角对应的扫描方向正交的方向倾斜地设置; 上磁芯层位于头部扫描方向上的下磁芯层前方的前方，下磁芯层上的突起具有以等于或大于方位角的角度倾斜的倾斜侧面至少在其一个侧表面上在其轨道宽度的方向上，并且与上磁芯层上的突起的磁隙相邻的一侧的至少一个边缘对准在从倾斜侧表面延伸的线上下磁芯层，从而在方位记录期间抑制磁记录介质中的边擦除的发生。

6. 发明申请

US20050282039A1 Recording and reproducing apparatus having magnetic recording medium possessing a specific range of surface resistivity for GMR head 审中-公开
标题翻译：具有磁记录介质的记录和再现装置，其具有用于GMR头的特定表面电阻率范围
公开(公告)号：US20050282039A1
公开(公告)日：2005-12-22
申请号：US11209378
申请日：2005-08-23
申请人： Hiroki Tetsukawa , Tadashi Ozue , Yutaka Souda
发明人： Hiroki Tetsukawa , Tadashi Ozue , Yutaka Souda
IPC分类号： G11B5/64 , G11B5/85 , G11B5/127
CPC分类号： G11B5/64 , G11B5/85
摘要： Disclosed is a magnetic recording medium, which comprises a metal magnetic thin film formed on a nonmagnetic support member, surface resistivity of the metal magnetic thin film is in the range of 1×103 Ω/sq.-1×107 Ω/sq., a value of Mr·t (a product of amount of residual magnetization (Mr) and film thickness (t)) is within the range of 4 mA-13 mA, and amount of residual magnetization (Mr) is within the range of 160 kA/m-360 kA/m. As a result, in the reproduction using GMR head, it is possible to suppress noise and to prevent saturation of GMR head and electrostatic destruction.
摘要翻译：公开了一种磁记录介质，其包括形成在非磁性支撑构件上的金属磁性薄膜，金属磁性薄膜的表面电阻率在1×10 3Ω/ sq.-1×10 -3的范围内， SUP≥7Ω/ sq，Mrt（剩余磁化量（Mr）和膜厚度（t）的乘积）的值在4mA-13mA的范围内，剩余磁化强度（Mr）在160kA / m-360kA / m的范围内。结果，在使用GMR头的再现中，可以抑制噪声并防止GMR头的饱和和静电破坏。

7. 发明申请

US20050174689A1 Magnetic recording head, magnetic reproducing head, magnetic head, tape drive and disk drive 审中-公开
公开(公告)号：US20050174689A1
公开(公告)日：2005-08-11
申请号：US11103211
申请日：2005-04-11
申请人： Tadashi Ozue , Yutaka Soda
发明人： Tadashi Ozue , Yutaka Soda
IPC分类号： G11B5/115 , G11B5/29 , G11B5/31 , G11B5/39 , G11B5/48 , G11B5/49 , G11B5/53 , G11B5/11
CPC分类号： G11B5/3951 , G11B5/115 , G11B5/295 , G11B5/3103 , G11B5/3116 , G11B5/3163 , G11B5/3903 , G11B5/3912 , G11B5/3967 , G11B5/488 , G11B5/4886 , G11B5/4893 , G11B5/4976 , G11B5/531 , G11B5/534
摘要： A magnetic recording/reproducing head having a plurality of magnetic head elements for multi-channeling capable of achieving high density recording/reproducing capability, including: a plurality of magnetic recording/reproducing head layers each including magnetic recording/reproducing head elements fabricated by a thin film process and interposed between two insulating/magnetic shielding layers laminated on a non-magnetic substrate; the total of magnetic recording/reproducing head elements formed therein are displaced from each other in a head width direction, and each magnetic recording/reproducing head layer has a plurality of magnetic recording/reproducing head elements formed at a predetermined pitch.

8. 发明申请

US20050174688A1 Magnetic recording head, magnetic reproducing head, magnetic head, tape drive and disk drive 审中-公开
标题翻译：磁记录头，磁再现头，磁头，磁带驱动器和磁盘驱动器
公开(公告)号：US20050174688A1
公开(公告)日：2005-08-11
申请号：US11103210
申请日：2005-04-11
申请人： Tadashi Ozue , Yutaka Soda
发明人： Tadashi Ozue , Yutaka Soda
IPC分类号： G11B5/115 , G11B5/29 , G11B5/31 , G11B5/39 , G11B5/48 , G11B5/49 , G11B5/53 , G11B5/147
CPC分类号： G11B5/3951 , G11B5/115 , G11B5/295 , G11B5/3103 , G11B5/3116 , G11B5/3163 , G11B5/3903 , G11B5/3912 , G11B5/3967 , G11B5/488 , G11B5/4886 , G11B5/4893 , G11B5/4976 , G11B5/531 , G11B5/534
摘要： A magnetic recording/reproducing head having a plurality of magnetic head elements for multi-channeling capable of achieving high density recording/reproducing capability, including: a plurality of magnetic recording/reproducing head layers each including magnetic recording/reproducing head elements fabricated by a thin film process and interposed between two insulating/magnetic shielding layers laminated on a non-magnetic substrate; the total of magnetic recording/reproducing head elements formed therein are displaced from each other in a head width direction, and each magnetic recording/reproducing head layer has a plurality of magnetic recording/reproducing head elements formed at a predetermined pitch.
摘要翻译：一种具有多个能够实现高密度记录/再现能力的多通道磁头元件的磁记录/再现头，包括：多个磁记录/再现头层，每个磁记录/再现头层包括由薄的并且介于层叠在非磁性基板上的两个绝缘/磁屏蔽层之间; 形成在其中的磁记录/再现头元件的总和在磁头宽度方向上彼此偏移，并且每个磁记录/再现磁头层具有以预定间距形成的多个磁记录/再现磁头元件。

9. 发明授权

US06704174B2 Magnetic recording and playback device with ESD protection 失效
标题翻译：具有ESD保护功能的磁记录和播放装置
公开(公告)号：US06704174B2
公开(公告)日：2004-03-09
申请号：US10013859
申请日：2001-12-13
申请人： Yutaka Soda , Nobuyuki Nagai , Katsuhiro Kasuga , Hiroshi Meguro , Tadashi Ozue
发明人： Yutaka Soda , Nobuyuki Nagai , Katsuhiro Kasuga , Hiroshi Meguro , Tadashi Ozue
IPC分类号： G11B539
CPC分类号： G11B33/1493
摘要： A head substrate and a projection substrate of a head drum comprise a conductive material having a resistance of 1×1010&OHgr; or less and are connected to a metal base so as to be at the ground potential via the metal base and a rotating drum. These antistatic treatments allow static electricity charged on a magnetic tape to be discharged to the head substrate and the protection substrate without flowing to a magneto-resistive (MR) element, thereby preventing the electrostatic discharge breakdown of the MR element.
摘要翻译：磁头基板和磁头鼓的投影基板包括具有1×10 10Ω或更小的电阻的导电材料，并且通过金属底座和旋转滚筒连接到金属基底以便处于地电位。这些抗静电处理允许在磁带上充电的静电被排放到头基板和保护基板，而不流到磁阻（MR）元件，从而防止MR元件的静电放电击穿。

10. 发明授权

US06411473B1 Rotary drum device and magnetic recording/reproducing apparatus having a more protruding inductive magnetic head relative to magnetoresistive head 失效
标题翻译：旋转鼓装置和磁记录/再现装置相对于磁阻头具有更突出的感应磁头
公开(公告)号：US06411473B1
公开(公告)日：2002-06-25
申请号：US09262328
申请日：1999-03-04
申请人： Tadashi Ozue , Toshio Shirai , Yoshiteru Kamatani
发明人： Tadashi Ozue , Toshio Shirai , Yoshiteru Kamatani
IPC分类号： G11B1561
CPC分类号： G11B15/61 , G11B5/0086 , G11B5/534
摘要： A rotary drum device and a helical scan magnetic recording/reproducing apparatus employing an MR head as a playback magnetic head. The rotary drum device and the helical scan magnetic recording/reproducing apparatus each include a cylindrically-shaped rotary drum, an inductive magnetic head loaded on the rotary drum so that its portion is protruded from the outer periphery of the rotary drum and a magneto-resistive effect magnetic head loaded on the rotary drum so that its portion is protruded from the outer periphery of the rotary drum. An amount of protrusion from the outer periphery of the rotary drum of the magneto-resistive effect magnetic head is smaller than an amount of protrusion from the outer periphery of the rotary drum of the inductive magnetic head.
摘要翻译：旋转鼓装置和使用MR头作为重放磁头的螺旋扫描磁记录/再现装置。旋转鼓装置和螺旋扫描磁记录/再现装置各自包括圆柱形旋转鼓，负载在旋转磁鼓上的感应磁头，使得其部分从旋转磁鼓的外周突出并具有磁阻将磁头加载到旋转磁鼓上，使其部分从旋转磁鼓的外周突出。来自磁阻效应磁头的旋转磁鼓的外周的突出量小于从感应磁头的旋转磁鼓的外周突出的量。

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