JPWO2021177468A1 - - Google Patents

Info

Publication number
JPWO2021177468A1
JPWO2021177468A1 JP2022504489A JP2022504489A JPWO2021177468A1 JP WO2021177468 A1 JPWO2021177468 A1 JP WO2021177468A1 JP 2022504489 A JP2022504489 A JP 2022504489A JP 2022504489 A JP2022504489 A JP 2022504489A JP WO2021177468 A1 JPWO2021177468 A1 JP WO2021177468A1
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
JP2022504489A
Other versions
JP7290792B2 (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 JPWO2021177468A1 publication Critical patent/JPWO2021177468A1/ja
Priority to JP2023091016A priority Critical patent/JP2023116570A/ja
Application granted granted Critical
Publication of JP7290792B2 publication Critical patent/JP7290792B2/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
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/021—Selecting or spacing of record carriers for introducing the heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B17/00—Guiding record carriers not specifically of filamentary or web form, or of supports therefor
    • G11B17/02—Details
    • G11B17/038—Centering or locking of a plurality of discs in a single cartridge
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/03—Containers for flat record 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
    • G11B5/62—Record carriers characterised by the selection of the material
    • G11B5/73—Base layers, i.e. all non-magnetic layers lying under a lowermost magnetic recording layer, e.g. including any non-magnetic layer in between a first magnetic recording layer and either an underlying substrate or a soft magnetic underlayer
    • G11B5/739—Magnetic recording media substrates
    • G11B5/73911—Inorganic substrates
    • G11B5/73921—Glass or ceramic substrates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Surface Treatment Of Glass (AREA)
JP2022504489A 2020-03-06 2021-03-08 ガラススペーサの製造方法、ガラススペーサ、及びハードディスクドライブ装置 Active JP7290792B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2023091016A JP2023116570A (ja) 2020-03-06 2023-06-01 ガラススペーサの製造方法、ガラススペーサ、及びハードディスクドライブ装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US202062986005P 2020-03-06 2020-03-06
US62/986,005 2020-03-06
PCT/JP2021/008935 WO2021177468A1 (ja) 2020-03-06 2021-03-08 ガラススペーサの製造方法、ガラススペーサ、及びハードディスクドライブ装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2023091016A Division JP2023116570A (ja) 2020-03-06 2023-06-01 ガラススペーサの製造方法、ガラススペーサ、及びハードディスクドライブ装置

Publications (2)

Publication Number Publication Date
JPWO2021177468A1 true JPWO2021177468A1 (ja) 2021-09-10
JP7290792B2 JP7290792B2 (ja) 2023-06-13

Family

ID=77614053

Family Applications (2)

Application Number Title Priority Date Filing Date
JP2022504489A Active JP7290792B2 (ja) 2020-03-06 2021-03-08 ガラススペーサの製造方法、ガラススペーサ、及びハードディスクドライブ装置
JP2023091016A Pending JP2023116570A (ja) 2020-03-06 2023-06-01 ガラススペーサの製造方法、ガラススペーサ、及びハードディスクドライブ装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP2023091016A Pending JP2023116570A (ja) 2020-03-06 2023-06-01 ガラススペーサの製造方法、ガラススペーサ、及びハードディスクドライブ装置

Country Status (4)

Country Link
US (2) US11869538B2 (ja)
JP (2) JP7290792B2 (ja)
CN (1) CN115176310A (ja)
WO (1) WO2021177468A1 (ja)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009108419A (ja) * 2008-12-24 2009-05-21 Canon Anelva Corp インライン型基板処理装置
JP2019125413A (ja) * 2017-09-29 2019-07-25 Hoya株式会社 ガラススペーサ及びハードディスクドライブ装置
WO2019151459A1 (ja) * 2018-02-01 2019-08-08 Hoya株式会社 ガラススペーサ、ハードディスクドライブ装置、及びガラススペーサの製造方法
WO2019221102A1 (ja) * 2018-05-16 2019-11-21 Hoya株式会社 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2941691B2 (ja) * 1995-07-31 1999-08-25 京セラ株式会社 磁気ディスク保持部材および磁気ディスク装置
US5969902A (en) 1995-03-15 1999-10-19 Kyocera Corporation Support magnetic disk substrate and magnetic disk unit using the support member composed of Forsterite and an iron based component
JPH1074350A (ja) * 1996-04-30 1998-03-17 Soode Nagano:Kk メディア用スペーサとメディア用クランプおよびハードディスク装置
US5724208A (en) * 1996-04-30 1998-03-03 Kabushiki Kaisha Soode Nagano Hard disc spacer and hard disc clamp
JP2003272337A (ja) * 2002-03-18 2003-09-26 Asahi Glass Co Ltd 磁気ディスク用ガラス製スペーサリングの製造方法およびスペーサリング
JP2003272336A (ja) * 2002-03-18 2003-09-26 Asahi Glass Co Ltd 磁気ディスク用ガラス製取付け部材およびその製造方法
JP2003308672A (ja) * 2002-04-09 2003-10-31 Asahi Glass Co Ltd 磁気ディスク用リング状スペーサの加工方法および磁気ディスク用リング状スペーサ
JP2005103652A (ja) * 2003-09-26 2005-04-21 Asahi Glass Co Ltd ガラス製リングの製造方法及びその装置
JP2005320568A (ja) * 2004-05-07 2005-11-17 Olympus Corp 薄膜形成装置及び膜厚監視方法
JP2007095205A (ja) * 2005-09-29 2007-04-12 Hoya Corp 磁気記録ディスクの製造方法、磁気記録ディスク製造装置、および磁気記録ディスク製造用基板ホルダ
SG10201607848SA (en) 2012-05-16 2016-11-29 Hoya Corp Mask blank, transfer mask, and methods of manufacturing the same
JP6505960B1 (ja) * 2017-08-31 2019-04-24 Hoya株式会社 スペーサ及びハードディスクドライブ装置
US11227634B1 (en) * 2020-06-29 2022-01-18 Western Digital Technologies, Inc. Data storage device with composite spacer for disk stack assembly

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009108419A (ja) * 2008-12-24 2009-05-21 Canon Anelva Corp インライン型基板処理装置
JP2019125413A (ja) * 2017-09-29 2019-07-25 Hoya株式会社 ガラススペーサ及びハードディスクドライブ装置
WO2019151459A1 (ja) * 2018-02-01 2019-08-08 Hoya株式会社 ガラススペーサ、ハードディスクドライブ装置、及びガラススペーサの製造方法
WO2019221102A1 (ja) * 2018-05-16 2019-11-21 Hoya株式会社 磁気記録媒体基板用ガラス、磁気記録媒体基板、磁気記録媒体、磁気記録再生装置用ガラススペーサおよび磁気記録再生装置

Also Published As

Publication number Publication date
US20240071419A1 (en) 2024-02-29
CN115176310A (zh) 2022-10-11
US20230223047A1 (en) 2023-07-13
US11869538B2 (en) 2024-01-09
JP7290792B2 (ja) 2023-06-13
JP2023116570A (ja) 2023-08-22
WO2021177468A1 (ja) 2021-09-10

Similar Documents

Publication Publication Date Title
BR112023005462A2 (ja)
BR112021014123A2 (ja)
BR112022009896A2 (ja)
BR112022024743A2 (ja)
BR112023006729A2 (ja)
BR102021018859A2 (ja)
BR102021007058A2 (ja)
BR112023008622A2 (ja)
BR102020022030A2 (ja)
BR112023004146A2 (ja)
BR112023008976A2 (ja)
BR102021020147A2 (ja)
BR102021018926A2 (ja)
BR102021018167A2 (ja)
BR102021017576A2 (ja)
BR102021016837A2 (ja)
BR102021016551A2 (ja)
BR102021016375A2 (ja)
BR102021016200A2 (ja)
BR102021015220A2 (ja)
BR102021014044A2 (ja)
BR102021014056A2 (ja)
BR102021013929A2 (ja)
BR112021017747A2 (ja)
BR102021012571A2 (ja)

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20230303

A871 Explanation of circumstances concerning accelerated examination

Free format text: JAPANESE INTERMEDIATE CODE: A871

Effective date: 20230303

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: 20230404

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20230427

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20230601

R150 Certificate of patent or registration of utility model

Ref document number: 7290792

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150