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11.发明授权公开(公告)号：US12068011B2
公开(公告)日：2024-08-20
申请号：US18171919
申请日：2023-02-21
Applicant: FUJIFILM Corporation
Inventor： Toru Nakao , Tetsuya Kaneko , Yoichi Akano
CPC classification number: G11B5/5508 , G11B5/5928
Abstract: A magnetic head includes a first servo reading element pair, a second servo reading element pair, and a plurality of magnetic elements. The first servo reading element pair consists of a first servo reading element and a second servo reading element, the second servo reading element pair consists of a third servo reading element and a fourth servo reading element, the first servo reading element and the third servo reading element are disposed on one end side of the plurality of magnetic elements and read one servo band of the pair of servo bands, and the second servo reading element and the fourth servo reading element are disposed on the other end side of the plurality of magnetic elements and read the other servo band of the pair of servo bands.
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公开(公告)号：US11900976B2
公开(公告)日：2024-02-13
申请号：US18145558
申请日：2022-12-22
Applicant: FUJIFILM Corporation
Inventor： Yoichi Akano , Toru Nakao , Tetsuya Kaneko
CPC classification number: G11B5/584 , G11B5/00817
Abstract: A processing device stores a result of reading a reference servo pattern by a servo reading element from a magnetic tape in which the reference servo pattern is recorded, in the storage medium as an ideal waveform signal indicating an ideal waveform, acquires a servo band signal which is a result of reading a servo pattern recorded in a servo band of the magnetic tape by the servo reading element, and detects a servo pattern signal which is a result of reading the servo pattern by the servo reading element by comparing the ideal waveform signal stored in the storage medium with the servo band signal. The magnetic tape has a data band. The reference servo pattern is recorded in the data band.
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公开(公告)号：US11900969B2
公开(公告)日：2024-02-13
申请号：US18050231
申请日：2022-10-27
Applicant: FUJIFILM Corporation
Inventor： Toru Nakao , Tetsuya Kaneko , Yoichi Akano
CPC classification number: G11B27/36
Abstract: A detection device includes a processing device and a storage medium. An ideal waveform signal indicating an ideal waveform of a servo pattern signal which is a result of reading a servo pattern recorded in a servo band of a magnetic tape by a servo reading element is stored in advance in the storage medium. The processing device acquires a servo band signal which is a result of reading the servo band by the servo reading element, and detects the servo pattern signal by comparing the servo band signal with the ideal waveform signal.
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公开(公告)号：US20230206956A1
公开(公告)日：2023-06-29
申请号：US18145539
申请日：2022-12-22
Applicant: FUJIFILM Corporation
Inventor： Yoichi Akano , Toru Nakao , Tetsuya Kaneko
CPC classification number: G11B27/36 , G11B5/00813
Abstract: A detection device includes a processing device and a storage medium. The processing device stores a result of reading a servo pattern by a servo reading element from a magnetic tape in which the servo pattern is recorded in a servo band, in the storage medium as an ideal waveform signal indicating an ideal waveform, acquires a servo band signal which is a result of reading the servo band by the servo reading element, and detects a servo pattern signal indicating the servo pattern by comparing the ideal waveform signal stored in the storage medium with the servo band signal.
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15.发明授权公开(公告)号：US11551718B2
公开(公告)日：2023-01-10
申请号：US17374006
申请日：2021-07-13
Applicant: FUJIFILM CORPORATION
Inventor： Toru Nakao , Hodaka Suzuki , Yoichi Akano
Abstract: A recording and reproducing device includes: a reading unit that reads production information from a recording medium of a magnetic tape cartridge, the magnetic tape cartridge including a magnetic tape, and the recording medium other than the magnetic tape and on which the production information is recorded, the production information being information regarding the magnetic tape obtained in a production process of the magnetic tape cartridge; and a control unit that performs, as an initialization process of the magnetic tape cartridge, control of recording the production information on the magnetic tape and invalidating the production information in the recording medium.
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Patent Agency Ranking
公开(公告)号：US12176014B2
公开(公告)日：2024-12-24
申请号：US18400011
申请日：2023-12-29
Applicant: FUJIFILM CORPORATION
Inventor： Toru Nakao , Tetsuya Kaneko , Yoichi Akano
Abstract: A first straight line region and a second straight line region of the straight line region pair are inclined in opposite directions with respect to a first imaginary straight line. The first straight line region has a steeper inclined angle with respect to the first imaginary straight line than the second straight line region. Positions of both ends of the first straight line region and positions of both ends of the second straight line region are aligned in a direction corresponding to a width direction of a magnetic tape. A plurality of gap patterns deviate from each other by a predetermined interval in a direction corresponding to a longitudinal direction of the magnetic tape, between the gap patterns adjacent to each other along the direction corresponding to the width direction of the magnetic tape. A substrate is inclined with respect to the first imaginary straight line.
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公开(公告)号：US12057148B2
公开(公告)日：2024-08-06
申请号：US18172693
申请日：2023-02-22
Applicant: FUJIFILM Corporation
Inventor： Toru Nakao , Tetsuya Kaneko , Yoichi Akano
CPC classification number: G11B5/56 , G11B5/00821
Abstract: A magnetic head includes a pair of servo reading elements corresponding to a pair of servo bands adjacent to each other in a width direction. A processor acquires a first signal based on a first result obtained by reading a servo pattern in a first servo band by a first servo reading element included in a pair of servo reading elements, acquires a second signal based on a second result obtained by reading the servo pattern in a second servo band by a second servo reading element included in the pair of servo reading elements, and outputs a deviation amount signal corresponding to a deviation amount in time between the first signal and the second signal.
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公开(公告)号：US12027185B2
公开(公告)日：2024-07-02
申请号：US18145539
申请日：2022-12-22
Applicant: FUJIFILM Corporation
Inventor： Yoichi Akano , Toru Nakao , Tetsuya Kaneko
CPC classification number: G11B27/36 , G11B5/00813
Abstract: A detection device includes a processing device and a storage medium. The processing device stores a result of reading a servo pattern by a servo reading element from a magnetic tape in which the servo pattern is recorded in a servo band, in the storage medium as an ideal waveform signal indicating an ideal waveform, acquires a servo band signal which is a result of reading the servo band by the servo reading element, and detects a servo pattern signal indicating the servo pattern by comparing the ideal waveform signal stored in the storage medium with the servo band signal.
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19.发明授权公开(公告)号：US11120832B2
公开(公告)日：2021-09-14
申请号：US17022112
申请日：2020-09-16
Applicant: FUJIFILM CORPORATION
Inventor： Toru Nakao , Hodaka Suzuki , Yoichi Akano
Abstract: A recording and reproducing device includes: a reading unit that reads production information from a recording medium of a magnetic tape cartridge, the magnetic tape cartridge including a magnetic tape, and the recording medium other than the magnetic tape and on which the production information is recorded, the production information being information regarding the magnetic tape obtained in a production process of the magnetic tape cartridge; and a control unit that performs, as an initialization process of the magnetic tape cartridge, control of recording the production information on the magnetic tape and invalidating the production information in the recording medium.
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公开(公告)号：US10896691B2
公开(公告)日：2021-01-19
申请号：US16120328
申请日：2018-09-03
Applicant: FUJIFILM CORPORATION
Inventor： Yoichi Akano
Abstract: A recording device, a control device, a recording method, a recording tape cartridge, and a data recording and reproducing system capable of accurately positioning a data recording and reproducing head are obtained. A recording device includes a recording unit that records information on linearity of a servo signal recorded on a magnetic tape included in a recording tape cartridge on an RFID tag included in the recording tape cartridge.
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