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公开(公告)号：US12125506B2
公开(公告)日：2024-10-22
申请号：US18483454
申请日：2023-10-09
发明人： Manabu Uehara , Yuu Kawai
CPC分类号： G11B33/122 , G11B19/2009 , G11B25/043 , G11B33/1446 , G11B5/4813 , G11B33/0472 , G11B33/126 , G11B33/128
摘要： According to one embodiment, a disk device includes a housing with a bottom wall, magnetic disks supported on a hub of a motor, a printed circuit board provided on an outer surface of the bottom wall, and a wiring board attached on the outer surface of the bottom wall. The bottom wall includes a recess formed in the outer surface, a step located on border between the outer surface and the recess, and through holes opened to the recess. The wiring board includes one end portion disposed in the recess and connection pads on the one end portion, connected to lead wires of a coil. An adhesive is filled into the recess and the through holes, and covers the one end and a solder joint and seals the through holes.
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公开(公告)号：US20240339126A1
公开(公告)日：2024-10-10
申请号：US18749497
申请日：2024-06-20
发明人： Naoto AKATSUKA
IPC分类号： G11B5/48
CPC分类号： G11B5/4833 , G11B5/486
摘要： A disk device includes magnetic disks, a magnetic head, a suspension, and a carriage. The suspension includes a flexible substrate on which the magnetic head is mounted. The carriage includes an arm to which the suspension is attached. The arm includes opposing first and second end surfaces, a side surface extending between the first end surface and the second end surface, and a protruding body that protrudes from the side surface and has a first surface parallel to and spaced apart from the first end surface and a second surface parallel to and spaced apart from the second end surface. The flexible substrate includes a strip extending along the side surface. The strip includes a portion positioned between the first end surface and the protruding body in the axial direction and is positioned between the first end surface and the second end surface in the axial direction.
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公开(公告)号：US12106771B2
公开(公告)日：2024-10-01
申请号：US18371146
申请日：2023-09-21
IPC分类号： G11B5/48 , G11B13/08 , G11B5/00 , G11B5/60 , G11B11/105
CPC分类号： G11B13/08 , G11B5/4866 , G11B2005/0021 , G11B5/6088 , G11B11/105
摘要： A recording head includes a channel waveguide that delivers light to a media-facing surface. A near-field transducer (NFT) is at an end of the channel waveguide and proximate to the media-facing surface. A laser including an active region has a longitudinal axis corresponding to a propagation direction of the channel waveguide. The active region includes a back facet and a front facet proximate the NFT. The front facet has a surface shape configured to suppress back reflection of the light.
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公开(公告)号：US20240321298A1
公开(公告)日：2024-09-26
申请号：US18464111
申请日：2023-09-08
发明人： Yusuke NOJIMA , Takuma KIDO
IPC分类号： G11B5/48
CPC分类号： G11B5/4833 , G11B5/483 , G11B2220/2516
摘要： According to one embodiment, a disk device includes a load beam, a first protrusion, a flexure, a slider, and a second element. The first protrusion protrudes from the load beam away from a rotation axis in a first direction. The flexure includes a mounting part supported by the first protrusion. The slider is mounted on the mounting part, and includes a first element that reads and writes information from and to a magnetic disk, and a floating surface facing the magnetic disk. The second element is attached to the slider apart from a geometric center of the floating surface in the first direction. On a projection plane as viewed in a direction orthogonal to the floating surface, a contact position between the first protrusion and the mounting part is located between a geometric center of the slider and a center of gravity of the second element.
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5.发明授权公开(公告)号：US12100430B2
公开(公告)日：2024-09-24
申请号：US18364747
申请日：2023-08-03
发明人： Kazuaki Okamoto , Yousuke Isowaki
CPC分类号： G11B5/09 , G11B5/4886 , G11B5/59627
摘要： According to one embodiment, a data processor includes an interface section and a processor. The interface section is configured to acquire partial data relating to a control condition of a magnetic recording/reproducing device. The processor is configured to process the partial data. The processor is configured to derive a first data by processing the partial data with a first model based on characteristics of the partial data, a first resolution of the first data being higher than a partial resolution of the partial data. The processor is configured to derive a second data by processing the partial data with a second model based on the characteristic. The second model is different from the first model. A second resolution of the second data being higher than the partial resolution.
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公开(公告)号：US12094501B1
公开(公告)日：2024-09-17
申请号：US18225084
申请日：2023-07-21
发明人： David P. Druist
CPC分类号： G11B5/4853 , G11B5/455
摘要： A hard disk drive head slider housing a read-write transducer includes electrical pads for bonding with a suspension flexure, electrically conductive bonding studs each extending into the slider body from a corresponding bonding pad, electrical pads for testing where each is positioned proximate to and at a distance from a corresponding bonding pad, electrically conductive testing studs each extending into the slider body from a corresponding testing pad, and a conductive layer within the slider body for electrically connecting a bonding pad with a corresponding testing pad via respective bonding and testing studs. This arrangement accomplishes the effects of a commonly-employed anti-wetting overlay separating the testing pad from the bonding pad, without the added cost, capital expenditure, process and yield difficulties associated with the anti-wetting overlay.
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公开(公告)号：US12094500B2
公开(公告)日：2024-09-17
申请号：US18222953
申请日：2023-07-17
发明人： Yoshiyuki Hirono , Andre Chan
IPC分类号： G11B5/48
CPC分类号： G11B5/4813
摘要： A hard disk drive carriage arm includes a top depressed portion or indentation extending from a top surface toward a bottom surface and a bottom depressed portion or indentation extending from the bottom surface toward the top surface and opposing the top depressed portion. As such, a separating structure between the depressed portions partitions a corresponding balance hole, preferably at or near a mid-plane between the top and bottom surfaces. This configuration does not notably increase windage-based power loss while suppressing fluid force fluctuation, thereby stabilizing and balancing the airflow inside of the depressed portions.
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8.发明公开公开(公告)号：US20240304214A1
公开(公告)日：2024-09-12
申请号：US18232003
申请日：2023-08-09
发明人： Bernd Lamberts , Bernhard E. Knigge , Erhard Schreck , Qing Dai
CPC分类号： G11B5/607 , G11B5/4866
摘要： Various illustrative aspects are directed to a data storage device, comprising one or more disks; an actuator mechanism configured to position one or more heads proximate to a corresponding disk surface of the one or more disks; and one or more processing devices. The one or more processing devices are configured to receive signals indicative of conditions of a write operation by the selected head. The one or more processing devices are further configured to determine, based on the signals, a verification status indicating whether the write operation was successful. The one or more processing devices are further configured to output the verification status within a selected time limit.
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公开(公告)号：US20240304211A1
公开(公告)日：2024-09-12
申请号：US18630195
申请日：2024-04-09
发明人： Hiroshi ISOKAWA
CPC分类号： G11B5/012 , G11B25/043 , G11B2005/0018 , G11B2005/0024 , G11B5/23 , G11B5/3116 , G11B5/3912 , G11B5/3983 , G11B5/4813
摘要： According to one embodiment, among a plurality of magnetic heads, the larger the magnetic pole width of the magnetic pole of the magnetic head in the width direction of a recording track formed in a recording layer or the larger an area width of the magnetic head capable of reading the magnetic characteristics of an area of the recording layer on which magnetic recording has been carried out by means of the magnetic head, the farther is the magnetic head arranged outwardly from the vicinity of the center in the parallel arrangement direction of the magnetic disks.
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公开(公告)号：US20240257829A1
公开(公告)日：2024-08-01
申请号：US18354959
申请日：2023-07-19
CPC分类号： G11B5/11 , G11B5/1272 , G11B5/486
摘要： According to one embodiment, a magnetic head includes first to fourth shields, first to fourth terminals, and first magnetic member. The third shield includes a first partial region and a second partial region. The fourth shield includes a third partial region and a fourth partial region. The first magnetic member is provided between a portion of the first shield and a portion of the second shield in a first direction from the first shield to the second shield. The first magnetic member is provided between the first partial region and the third partial region in a second direction crossing the first direction. The portion of the first shield is located between the second partial region and the fourth partial region in the second direction.
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