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1.发明申请公开(公告)号：US20210343312A1
公开(公告)日：2021-11-04
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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公开(公告)号：US20240212708A1
公开(公告)日：2024-06-27
申请号：US18599062
申请日：2024-03-07
Applicant: FUJIFILM CORPORATION
Inventor： Toru NAKAO , Tetsuya KANEKO , Yoichi AKANO
CPC classification number: G11B5/5928 , G11B5/78 , G11B5/84 , G11B15/43 , G11B15/602
Abstract: A plurality of servo patterns are recorded in a magnetic tape along a longitudinal direction. The servo pattern is at least one linear magnetization region pair. The linear magnetization region pair includes a first linear magnetization region, which is linearly magnetized, and a second linear magnetization region, which is linearly magnetized. The first linear magnetization region and the second linear magnetization region are inclined in opposite directions with respect to a first imaginary straight line along a width direction of the magnetic tape. The first linear magnetization region has a steeper inclined angle with respect to the first imaginary straight line than the second linear magnetization region.
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公开(公告)号：US20240096351A1
公开(公告)日：2024-03-21
申请号：US18521162
申请日：2023-11-28
Applicant: FUJIFILM CORPORATION
Inventor： Toru NAKAO , Tetsuya KANEKO , Yoichi AKANO
CPC classification number: G11B5/3116 , G11B5/00826
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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4.发明公开公开(公告)号：US20230206948A1
公开(公告)日：2023-06-29
申请号：US18170683
申请日：2023-02-17
Applicant: FUJIFILM Corporation
Inventor： Toru NAKAO , Norihito Kasada , Tetsuya KANEKO , Atsushi MUSHA
IPC: G11B5/584 , G11B23/027 , G11B15/43
CPC classification number: G11B5/584 , G11B23/027 , G11B15/43
Abstract: A magnetic tape cartridge includes a case in which a magnetic tape is accommodated and a storage medium provided in the case. At least one of reading or writing of data is performed by a plurality of magnetic elements, which are linearly disposed, with respect to the magnetic tape pulled out from the case. A disposition direction of the plurality of magnetic elements is tilted toward an entire length direction side of the magnetic tape with respect to a width direction of the magnetic tape. The storage medium stores tilt feature information indicating a feature of tilt of the disposition direction with respect to the width direction.
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公开(公告)号：US20230206947A1
公开(公告)日：2023-06-29
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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Patent Agency Ranking
6.发明公开公开(公告)号：US20230186944A1
公开(公告)日：2023-06-15
申请号：US18163606
申请日：2023-02-02
Applicant: FUJIFILM Corporation
Inventor： Toru NAKAO , Norihito KASADA , Tetsuya KANEKO , Atsushi MUSHA
CPC classification number: G11B5/00813 , G11B5/78
Abstract: Provided is a magnetic tape cartridge including: a case in which a magnetic tape on which a plurality of servo bands are formed is accommodated; and a storage medium provided in the case, in which the plurality of servo bands are formed at positions spaced apart from each other in a width direction of the magnetic tape along an entire length direction of the magnetic tape, and the storage medium stores pitch information capable of specifying a pitch in the width direction between the plurality of servo bands and distance information capable of specifying a distance between a plurality of servo reading elements that have read the plurality of servo bands.
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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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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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9.发明公开公开(公告)号：US20230154494A1
公开(公告)日：2023-05-18
申请号：US18158048
申请日：2023-01-23
Applicant: FUJIFILM Corporation
Inventor： Toru NAKAO , Norihito KASADA , Tetsuya KANEKO , Atsushi MUSHA
IPC: G11B15/43
CPC classification number: G11B15/43
Abstract: Provided is a magnetic tape cartridge including: a case in which a magnetic tape is accommodated; and a storage medium provided in the case, in which the storage medium stores tension allowable range related information regarding an allowable range of tension applied to the magnetic tape.
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10.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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