[go: up one dir, main page]

JPWO2020203785A1 - - Google Patents

Info

Publication number
JPWO2020203785A1
JPWO2020203785A1 JP2021512009A JP2021512009A JPWO2020203785A1 JP WO2020203785 A1 JPWO2020203785 A1 JP WO2020203785A1 JP 2021512009 A JP2021512009 A JP 2021512009A JP 2021512009 A JP2021512009 A JP 2021512009A JP WO2020203785 A1 JPWO2020203785 A1 JP WO2020203785A1
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2021512009A
Other versions
JP7375813B2 (ja
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of JPWO2020203785A1 publication Critical patent/JPWO2020203785A1/ja
Priority to JP2023183843A priority Critical patent/JP7586266B2/ja
Application granted granted Critical
Publication of JP7375813B2 publication Critical patent/JP7375813B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G11B5/70605—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material metals or alloys
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
    • G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
    • G11B5/706—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by the composition of the magnetic material
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/78—Tape carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B5/584—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes
    • G11B5/588—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads
    • G11B5/592—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads
    • G11B5/5921—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads using auxiliary signals, e.g. pilot signals
    • G11B5/5926—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following on tapes by controlling the position of the rotating heads using bimorph elements supporting the heads using auxiliary signals, e.g. pilot signals recorded in separate tracks, e.g. servo tracks
    • G11B5/5928—Longitudinal tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Metallurgy (AREA)
  • Magnetic Record Carriers (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
  • Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
JP2021512009A 2019-03-29 2020-03-27 磁気記録媒体及びサーボ信号記録装置 Active JP7375813B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023183843A JP7586266B2 (ja) 2019-03-29 2023-10-26 磁気記録媒体

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019069206 2019-03-29
JP2019069206 2019-03-29
PCT/JP2020/014055 WO2020203785A1 (ja) 2019-03-29 2020-03-27 磁気記録媒体及びサーボ信号記録装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2023183843A Division JP7586266B2 (ja) 2019-03-29 2023-10-26 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPWO2020203785A1 true JPWO2020203785A1 (ja) 2020-10-08
JP7375813B2 JP7375813B2 (ja) 2023-11-08

Family

ID=72668441

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2021512009A Active JP7375813B2 (ja) 2019-03-29 2020-03-27 磁気記録媒体及びサーボ信号記録装置
JP2023183843A Active JP7586266B2 (ja) 2019-03-29 2023-10-26 磁気記録媒体

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2023183843A Active JP7586266B2 (ja) 2019-03-29 2023-10-26 磁気記録媒体

Country Status (4)

Country Link
US (1) US11862212B2 (ja)
JP (2) JP7375813B2 (ja)
DE (1) DE112020001677T5 (ja)
WO (1) WO2020203785A1 (ja)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7377182B2 (ja) * 2020-09-25 2023-11-09 富士フイルム株式会社 磁気記録ヘッドおよびその製造方法、磁気記録装置ならびに磁気記録媒体の製造方法
WO2022070964A1 (ja) * 2020-09-30 2022-04-07 富士フイルム株式会社 磁気記録媒体、磁気テープカートリッジおよび磁気記録再生装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009037700A (ja) * 2007-08-02 2009-02-19 Hitachi Maxell Ltd 磁気記録媒体
JP2017224365A (ja) * 2016-06-13 2017-12-21 富士フイルム株式会社 磁気テープおよび磁気テープ装置
JP2018005970A (ja) * 2013-03-15 2018-01-11 ソニー株式会社 磁気記録媒体、サーボ信号記録装置及び磁気記録媒体の製造方法
JP2018073454A (ja) * 2011-06-13 2018-05-10 ソニー株式会社 垂直異方性を有する磁気記録媒体のサーボ書き込み

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4085430A (en) * 1974-01-24 1978-04-18 U.S. Philips Corporation Thin film magnetic head with a gap formed between a loop shaped core part and a bridging core part
US7800862B1 (en) * 2004-02-18 2010-09-21 Advanced Research Corporation Magnetic recording head having secondary sub-gaps
JP6206252B2 (ja) * 2013-03-15 2017-10-04 ソニー株式会社 磁気記録媒体、サーボ信号記録装置及び磁気記録媒体の製造方法
US11302351B2 (en) * 2018-02-16 2022-04-12 Sony Corporation High density magnetic recording medium and cartridge including high density magnetic recording medium
JP7255674B2 (ja) * 2019-03-29 2023-04-11 ソニーグループ株式会社 データ再生装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009037700A (ja) * 2007-08-02 2009-02-19 Hitachi Maxell Ltd 磁気記録媒体
JP2018073454A (ja) * 2011-06-13 2018-05-10 ソニー株式会社 垂直異方性を有する磁気記録媒体のサーボ書き込み
JP2018005970A (ja) * 2013-03-15 2018-01-11 ソニー株式会社 磁気記録媒体、サーボ信号記録装置及び磁気記録媒体の製造方法
JP2017224365A (ja) * 2016-06-13 2017-12-21 富士フイルム株式会社 磁気テープおよび磁気テープ装置

Also Published As

Publication number Publication date
DE112020001677T5 (de) 2022-01-13
JP7586266B2 (ja) 2024-11-19
US20220189506A1 (en) 2022-06-16
WO2020203785A1 (ja) 2020-10-08
US11862212B2 (en) 2024-01-02
JP2023175039A (ja) 2023-12-08
JP7375813B2 (ja) 2023-11-08

Similar Documents

Publication Publication Date Title
BR112019017762A2 (ja)
BR112021017339A2 (ja)
BR112021017637A2 (ja)
BR112019016141A2 (ja)
BR112021008711A2 (ja)
BR112021016821A2 (ja)
BR112021017728A2 (ja)
BR112019016142A2 (ja)
BR112019016138A2 (ja)
BR112021017234A2 (ja)
BR112021017703A2 (ja)
BR112021017732A2 (ja)
BR112021017355A2 (ja)
BR112021017173A2 (ja)
BR112021017310A2 (ja)
BR112021016996A2 (ja)
BR112021017083A2 (ja)
BR112021013944A2 (ja)
BR112021013128A2 (ja)
BR112021015080A2 (ja)
BR112021012348A2 (ja)
JPWO2020203785A1 (ja)
BR112021017010A2 (ja)
BR112019016136A2 (ja)
BR112021016099A2 (ja)

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20230206

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20230926

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20231009

R151 Written notification of patent or utility model registration

Ref document number: 7375813

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151