MY207080A - Glass for magnetic recording medium substrates, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus - Google Patents

Glass for magnetic recording medium substrates, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus

Info

Publication number
MY207080A
MY207080A MYPI2022000413A MYPI2022000413A MY207080A MY 207080 A MY207080 A MY 207080A MY PI2022000413 A MYPI2022000413 A MY PI2022000413A MY PI2022000413 A MYPI2022000413 A MY PI2022000413A MY 207080 A MY207080 A MY 207080A
Authority
MY
Malaysia
Prior art keywords
magnetic recording
recording medium
reproducing apparatus
glass
mol
Prior art date
Application number
MYPI2022000413A
Other languages
English (en)
Inventor
Koichi Sato
Kazuaki Hashimoto
Original Assignee
Hoya Corp
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 by Hoya Corp filed Critical Hoya Corp
Publication of MY207080A publication Critical patent/MY207080A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C15/00—Surface treatment of glass, not in the form of fibres or filaments, by etching
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
    • C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
    • C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/089—Glass compositions containing silica with 40% to 90% silica, by weight containing boron
    • C03C3/091—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium
    • C03C3/093—Glass compositions containing silica with 40% to 90% silica, by weight containing boron containing aluminium containing zinc or zirconium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/095—Glass compositions containing silica with 40% to 90% silica, by weight containing rare earths
    • 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
    • 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
    • G11B23/0014—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 record carriers not specifically of filamentary or web form
    • G11B23/0021—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 record carriers not specifically of filamentary or web form discs
    • G11B23/0028—Details
    • 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
    • G11B5/596—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 disks
    • 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
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/8404—Processes or apparatus specially adapted for manufacturing record carriers manufacturing base layers
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/85—Coating a support with a magnetic layer by vapour deposition
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/851—Coating a support with a magnetic layer by sputtering
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/858—Producing a magnetic layer by electro-plating or electroless plating

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Glass Compositions (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Magnetic Record Carriers (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
MYPI2022000413A 2019-07-22 2020-07-22 Glass for magnetic recording medium substrates, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus MY207080A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2019134578 2019-07-22
JP2019205993 2019-11-14
PCT/JP2020/028450 WO2021015240A1 (ja) 2019-07-22 2020-07-22 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

Publications (1)

Publication Number Publication Date
MY207080A true MY207080A (en) 2025-01-29

Family

ID=74192987

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2022000413A MY207080A (en) 2019-07-22 2020-07-22 Glass for magnetic recording medium substrates, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus

Country Status (5)

Country Link
US (3) US11688424B2 (2)
JP (4) JP7229357B2 (2)
CN (2) CN120441191A (2)
MY (1) MY207080A (2)
WO (1) WO2021015240A1 (2)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY204452A (en) 2018-05-16 2024-08-29 Hoya Corp Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus
CN120441191A (zh) * 2019-07-22 2025-08-08 Hoya株式会社 玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置
CN114787093A (zh) * 2019-12-13 2022-07-22 豪雅株式会社 磁记录介质基板用或磁记录再生装置用玻璃间隔物用的玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置
US11276716B2 (en) * 2019-12-17 2022-03-15 Taiwan Semiconductor Manufacturing Company, Ltd. Image sensor with improved near-infrared (NIR) radiation phase-detection autofocus (PDAF) performance
CN116964013A (zh) * 2021-03-05 2023-10-27 豪雅株式会社 磁记录介质基板用玻璃或磁记录再生装置用玻璃间隔物用的玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置
US20240158281A1 (en) * 2021-03-05 2024-05-16 Hoya Corporation Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device
US11851367B1 (en) 2022-02-14 2023-12-26 Corning Incorporated Precursor glasses and glass-ceramics comprising a crystalline phase having a jeffbenite crystalline structure
US11964907B2 (en) * 2022-02-14 2024-04-23 Corning Incorporated Glasses and glass-ceramics, and method of making the same
WO2024053056A1 (ja) * 2022-09-08 2024-03-14 Hoya株式会社 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、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
JP7766206B2 (ja) * 2022-09-08 2025-11-07 Hoya株式会社 磁気記録媒体基板用ガラス、磁気記録媒体基板および磁気記録再生装置

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1124995C (zh) * 1997-07-30 2003-10-22 保谷株式会社 信息记录媒体用玻璃基板的制造方法
SG98415A1 (en) * 1999-07-07 2003-09-19 Hoya Corp Process for preparation of crystallized glass for information recording disk
US6627565B1 (en) * 1999-07-27 2003-09-30 Hoya Corporation Crystallized glass substrate for information recording medium
WO2001021539A1 (en) * 1999-09-21 2001-03-29 Kabushiki Kaisha Ohara Holding member for information storage disk and information storage disk drive device
JP4785274B2 (ja) 2001-05-29 2011-10-05 日本板硝子株式会社 ガラス物品およびそれを用いた磁気記録媒体用ガラス基板
JP4446683B2 (ja) * 2002-05-24 2010-04-07 Ｈｏｙａ株式会社 磁気記録媒体用ガラス基板
EP2465828A4 (en) * 2009-08-10 2014-03-26 Hoya Corp GLASS FOR MAGNETIC RECORDING MEDIUM SUBSTRATE, MAGNETIC RECORDING MEDIUM SUBSTRATE AND METHOD FOR PRODUCING THE SAME, AND MAGNETIC RECORDING MEDIUM
MY163632A (en) * 2010-08-31 2017-10-13 Hoya Corp Method for manufacturing glass substrate for magnetic disk and method for manufacturing magnetic disk
WO2012093516A1 (ja) 2011-01-07 2012-07-12 旭硝子株式会社 情報記録媒体用ガラス基板、その製造方法および磁気記録媒体
JPWO2013001841A1 (ja) * 2011-06-30 2015-02-23 Hoya株式会社 磁気ディスク用ガラス基板及びその製造方法
SG10201605515PA (en) * 2012-05-16 2016-09-29 Hoya Corp Glass for magnetic recording medium substrate and usage thereof
CN105517966B (zh) * 2013-09-09 2017-12-19 Hoya株式会社 玻璃基板
JP6131154B2 (ja) * 2013-09-11 2017-05-17 Hoya株式会社 磁気記録媒体基板用ガラスおよび磁気記録媒体基板
CN107709256B (zh) * 2015-06-30 2021-09-14 Hoya株式会社 磁记录介质基板用玻璃、磁记录介质基板和磁记录介质
JPWO2017061501A1 (ja) 2015-10-05 2018-07-26 旭硝子株式会社 データ記憶媒体基板用ガラス、データ記憶媒体用ガラス基板および磁気ディスク
US11081133B2 (en) 2016-11-14 2021-08-03 Hoya Corporation Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium and glass spacer for magnetic recording and reproducing apparatus
WO2018225725A1 (ja) * 2017-06-09 2018-12-13 Hoya株式会社 情報記録媒体基板用ガラス、情報記録媒体基板、情報記録媒体および記録再生装置用ガラススペーサ
JP7276645B2 (ja) * 2017-08-08 2023-05-18 日本電気硝子株式会社 磁気記録媒体用ガラス基板
MY204452A (en) * 2018-05-16 2024-08-29 Hoya Corp Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus
TW202545844A (zh) * 2019-02-07 2025-12-01 日商Ａｇｃ股份有限公司 無鹼玻璃
CN120441191A (zh) * 2019-07-22 2025-08-08 Hoya株式会社 玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置
CN114787093A (zh) * 2019-12-13 2022-07-22 豪雅株式会社 磁记录介质基板用或磁记录再生装置用玻璃间隔物用的玻璃、磁记录介质基板、磁记录介质、磁记录再生装置用玻璃间隔物和磁记录再生装置

Also Published As

Publication number Publication date
CN114144384A (zh) 2022-03-04
US11688424B2 (en) 2023-06-27
JP7229357B2 (ja) 2023-02-27
US20250140290A1 (en) 2025-05-01
JP2024170658A (ja) 2024-12-10
US20220277768A1 (en) 2022-09-01
CN114144384B (zh) 2025-05-16
JPWO2021015240A1 (2) 2021-01-28
JP2025183389A (ja) 2025-12-16
JP7559105B2 (ja) 2024-10-01
US12211533B2 (en) 2025-01-28
WO2021015240A1 (ja) 2021-01-28
JP2023065457A (ja) 2023-05-12
JP7748523B2 (ja) 2025-10-02
CN120441191A (zh) 2025-08-08
US20230306996A1 (en) 2023-09-28

Similar Documents

Publication Publication Date Title
MY207080A (en) Glass for magnetic recording medium substrates, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus
MY208742A (en) Glass for magnetic recording medium substrate or for glass spacer to be used in magnetic recording/reproducing device, magnetic recording medium substrate, magnetic recording medium, glass spacer to be used in magnetic recording/reproducing device, and magnetic recording/reproducing device
MY204452A (en) Glass for magnetic recording medium substrate, magnetic recording medium substrate, magnetic recording medium, glass spacer for magnetic recording and reproducing apparatus, and magnetic recording and reproducing apparatus
MY177073A (en) Method for producing magnetic disk, and glass substrate for information recording medium
MY154012A (en) Glass for data storage medium substrate, glass substrate for data storage medium and magnetic disk
SG152186A1 (en) Glass for information recording media substrate, glass substrate for magnetic disk and magnetic disk
JP5837492B2 (ja) 情報記録媒体用ガラス基板
US20090191331A1 (en) Perpendicular magnetic recording medium manufacturing method
MY169203A (en) Glass substrate for magnetic disk and magnetic recording medium
CN102898022A (zh) 基板用玻璃及玻璃基板
MY166878A (en) Glass for magnetic recording medium substrate and usage thereof
JPWO2021015240A5 (ja) 磁気記録媒体基板用または磁気記録再生装置用ガラススペーサ用のガラス、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
MY157935A (en) Glass for information recording media substrate
JP2023065457A5 (2)
MY158789A (en) Glass for magnetic recording media substrates, magnetic recording media substrates, magnetic recording media and method for preparation thereof
SG171527A1 (en) Glass substrate for information recording medium and magnetic disk
EP4091997A4 (en) GLASS COMPOSITION, GLASS PLATE AND RELATED PRODUCTION METHOD, AND SUBSTRATE FOR INFORMATION RECORDING MEDIUM
SG10201403647PA (en) Alkali-free glass for magnetic recording medium and glass substrate for magnetic recording medium using same
JPWO2022186393A5 (2)
JP2024102290A5 (2)
JP7165655B2 (ja) 情報記録媒体基板用ガラス、情報記録媒体基板、情報記録媒体および記録再生装置用ガラススペーサ
MY188043A (en) Glass substrate for information recording medium
SG11201806169UA (en) Sputtering target for magnetic recording medium, and magnetic thin film
SG10201403648QA (en) Alkali-free glass for magnetic recording medium and glass substrate for magnetic recording medium using same
TH2001006343A (th) แก้วสำหรับเป็นสับสเตรทของสื่อบันทึกแบบแบบแม่เหล็ก,สับสเตรทของสื่อบันทึกแบบแบบแม่เหล็ก,สื่อบันทึกแบบแบบแม่เหล็ก,ตัวคั่นแก้วสำหรับชุดเครื่องมือบันทึกและทำซ้ำแบบแม่เหล็ก,และชุดเครื่องมือบันทึกและทำซ้ำแบบแม่เหล็ก