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公开(公告)号：US11810602B2
公开(公告)日：2023-11-07
申请号：US17470977
申请日：2021-09-09
发明人： Icko E..T. Iben , Jason Liang , Hoodin Hamidi
CPC分类号： G11B5/3103 , G11B5/00826 , G11B5/265 , G11B5/29 , G11B5/3958 , G11B5/3977 , G11B5/4893
摘要： Provided are a magnetic tape head, a magnetic tape drive, and a computational device in which the magnetic tape head is comprised of a plurality of elements, wherein a pitch between adjacent elements of the plurality of elements is not identical. Selected elements of the plurality of elements that are shifted from a nominal position are selected in a symmetrical manner in the plurality of elements. A total of shifts of the elements of the plurality of elements that are shifted add up to a desired total shift to realign a plurality of modules, such that the median head span of each module type match as closely as possible to a desired value of a head span for all module types.
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公开(公告)号：US20230169993A1
公开(公告)日：2023-06-01
申请号：US17860496
申请日：2022-07-08
发明人： Kaori KIMURA , Masaya OHTAKE , Akihiko TAKEO
CPC分类号： G11B5/29 , G11B5/4866 , G11B2005/0024
摘要： According to one embodiment, a magnetic recording/reproducing device includes a plurality of magnetic recording medium each including a recording surface, a plurality of assisted magnetic recording heads each provided with the recording surface in order to perform assisted recording, and an assisting amount adjustment part connected to the assisted magnetic recording heads in order to adjust an assisting amount of each assisted magnetic recording head corresponding to a recording capacity of the recording surface.
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公开(公告)号：US11646053B2
公开(公告)日：2023-05-09
申请号：US17355590
申请日：2021-06-23
CPC分类号： G11B5/3967 , G11B5/00817 , G11B5/23 , G11B5/265 , G11B5/29 , G11B5/3958 , G11B5/4893 , G11B5/11 , G11B15/46
摘要： The present disclosure generally relates to a tape drive including a tape head. The tape head comprises at least one same gap verify (SGV) module comprising a plurality of write transducer and read transducer pairs disposed on a substrate. In each pair, the write transducer comprises a write pole having a height, and the read transducer comprises a first shield disposed adjacent to the write pole. The write pole and the first shield of each pair are spaced apart a distance greater than or equal to about 20% of the height of the write pole. The SGV module is configured to write data to a tape using the write transducer of each pair and read verify the data written on the tape using the read transducer of each pair such that the write transducer and read transducer of each pair are concurrently operable.
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公开(公告)号：US10811036B2
公开(公告)日：2020-10-20
申请号：US16154596
申请日：2018-10-08
IPC分类号： G11B5/187 , G11B5/23 , G11B5/29 , G11B5/008 , G11B5/31 , G11B5/265 , G11B5/10 , G11B5/255 , G11B5/40
摘要： A magnetic head, according to one embodiment, includes a rowbar substrate having a tape support surface and a gap surface at a substrate edge. A closure is positioned opposite the gap surface of the rowbar substrate, the closure forming a portion of the tape support surface. A recessed gap region is interposed between the gap surface of the rowbar substrate and the closure, the recessed gap region having a recessed gap profile that extends between the gap surface of the rowbar substrate and the closure, the recessed gap region having a transducer row with at least one magnetic sensor on the gap surface of the rowbar substrate. An insulation layer is positioned over the recessed gap profile of the recessed gap region.
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公开(公告)号：US10679654B2
公开(公告)日：2020-06-09
申请号：US16019386
申请日：2018-06-26
发明人： Robert G. Biskeborn , Jason Liang , Calvin S. Lo
IPC分类号： G11B5/29 , G11B5/40 , G11B5/48 , G11B15/60 , G11B5/187 , G11B15/62 , G11B5/008 , G11B5/31 , G11B5/72
摘要： An apparatus according to one embodiment includes a module having a tape bearing surface, a magnetic transducer in a thin film region, and an edge closest to the transducer. A guide is positioned relative to the edge for inducing tenting of a moving magnetic recording tape above a tape tenting region of the tape bearing surface. The magnetic transducer is positioned along the tape tenting region. The magnetic transducer is positioned a distance from a location on the tape bearing surface directly under a peak that is more than one-fourth the length from the location directly under the peak to the edge closest thereto.
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公开(公告)号：US10665257B2
公开(公告)日：2020-05-26
申请号：US15919123
申请日：2018-03-12
发明人： Thorsten Schmidt , Gary W. Calfee , Gabor Szita , Hieu Pham
摘要： A self servo-write process in performed on two or more recording surfaces simultaneously. In a dual-stage servo system, a first fine positioning servo system that includes a first microactuator independently controls the position of a first read/write head over a first recording surface of a hard disk drive, while a second fine positioning servo system that includes a second microactuator independently controls the position of a second read/write head over a second recording surface of the hard disk drive.
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公开(公告)号：US20190279675A1
公开(公告)日：2019-09-12
申请号：US15919123
申请日：2018-03-12
发明人： Thorsten SCHMIDT , Gary W. CALFEE , Gabor SZITA , Hieu PHAM
摘要： A self servo-write process in performed on two or more recording surfaces simultaneously. In a dual-stage servo system, a first fine positioning servo system that includes a first microactuator independently controls the position of a first read/write head over a first recording surface of a hard disk drive, while a second fine positioning servo system that includes a second microactuator independently controls the position of a second read/write head over a second recording surface of the hard disk drive.
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公开(公告)号：US10395682B2
公开(公告)日：2019-08-27
申请号：US15802344
申请日：2017-11-02
发明人： David H. F. Harper
摘要： An apparatus, according to one embodiment, includes: a first module and a second module each having an array of transducers oriented orthogonal to an intended direction of tape travel thereacross, where the first module is movable relative to the second module. The apparatus also includes an actuator configured to exert a force on one of the modules for causing a relative movement of the first module with respect to the second module for aligning the transducers of the first module with the transducers of the second module in a direction of tape travel thereacross. Moreover, longitudinal axes of the arrays of the first and second modules are not pivotable from orthogonal to the intended direction of tape travel thereacross. Other systems, methods, and computer program products are described in additional embodiments.
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公开(公告)号：US20190180775A1
公开(公告)日：2019-06-13
申请号：US16274829
申请日：2019-02-13
摘要： An apparatus, according to one embodiment, includes: an array of write transducers. Each of the write transducer include: a first write pole having a pole tip extending from a media facing side of the first write pole, and a second write pole having a pole tip extending from a media facing side of the second write pole. Each of the write transducers also include a nonmagnetic write gap between the pole tips of the write poles, a first high moment layer between the write gap and the pole tip of the second write pole, and a second high moment layer between the write gap and the pole tip of the first write pole. The first and second high moment layers each have a higher magnetic moment than magnetic moments of the pole tips of the second and first write poles, respectively.
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公开(公告)号：US20190180774A1
公开(公告)日：2019-06-13
申请号：US16274805
申请日：2019-02-13
摘要： An apparatus, according to one embodiment, includes: an array of write transducers. Each of the write transducers include: a first write pole having a pole tip extending from a media facing side of the first write pole, and a second write pole having a pole tip extending from a media facing side of the second write pole. Each of the write transducers also include a nonmagnetic write gap between the pole tips of the write poles, and a first high moment layer between the write gap and the pole tip of the second write pole. The first high moment layer further includes a higher magnetic moment than a magnetic moment of the pole tip of the second write pole. Other systems, methods, and computer program products are described in additional embodiments.
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