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公开(公告)号：US20240363143A1
公开(公告)日：2024-10-31
申请号：US18768322
申请日：2024-07-10
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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12.发明公开公开(公告)号：US20240135975A1
公开(公告)日：2024-04-25
申请号：US18405166
申请日：2024-01-05
Applicant: FUJIFILM Corporation
Inventor： Toru NAKAO , Tetsuya KANEKO , Yoichi AKANO
IPC: G11B27/36
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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13.发明申请公开(公告)号：US20210098018A1
公开(公告)日：2021-04-01
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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14.发明申请公开(公告)号：US20210098016A1
公开(公告)日：2021-04-01
申请号：US17029095
申请日：2020-09-23
Applicant: FUJIFILM CORPORATION
Inventor： Hodaka SUZUKI , Toru NAKAO , Yoichi AKANO
Abstract: A magnetic tape cartridge including: a magnetic tape; and a recording medium including a predetermined area for recording defect information, which is information regarding a defect of the magnetic tape detected in a production process of the magnetic tape.
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15.发明公开公开(公告)号：US20240363142A1
公开(公告)日：2024-10-31
申请号：US18768256
申请日：2024-07-10
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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Patent Agency Ranking
16.发明公开公开(公告)号：US20240233778A9
公开(公告)日：2024-07-11
申请号：US18405166
申请日：2024-01-05
Applicant: FUJIFILM Corporation
Inventor： Toru NAKAO , Tetsuya KANEKO , Yoichi AKANO
IPC: G11B27/36
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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17.发明公开公开(公告)号：US20230317106A1
公开(公告)日：2023-10-05
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：US20230098320A1
公开(公告)日：2023-03-30
申请号：US17950142
申请日：2022-09-22
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：US20230095712A1
公开(公告)日：2023-03-30
申请号：US17950143
申请日：2022-09-22
Applicant: FUJIFILM CORPORATION
Inventor： Toru NAKAO , Tetsuya KANEKO , Yoichi AKANO
Abstract: A plurality of gap patterns are formed on a front surface of a substrate along a direction corresponding to a width direction of a magnetic tape. 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. Positions of the plurality of gap patterns are aligned in a longitudinal direction of the magnetic tape. A pulse signal is supplied to each of the plurality of gap patterns with a delay of a predetermined time from one side to the other side in a direction in which the plurality of gap patterns are arranged.
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20.发明申请公开(公告)号：US20190074031A1
公开(公告)日：2019-03-07
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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