JPWO2023136242A5 - - Google Patents

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Publication number
JPWO2023136242A5
JPWO2023136242A5 JP2023574033A JP2023574033A JPWO2023136242A5 JP WO2023136242 A5 JPWO2023136242 A5 JP WO2023136242A5 JP 2023574033 A JP2023574033 A JP 2023574033A JP 2023574033 A JP2023574033 A JP 2023574033A JP WO2023136242 A5 JPWO2023136242 A5 JP WO2023136242A5
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JP
Japan
Prior art keywords
magnetic disk
disk substrate
principal surfaces
back principal
substrate according
Prior art date
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
JP2023574033A
Other languages
English (en)
Japanese (ja)
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JPWO2023136242A1 (cg-RX-API-DMAC7.html
JP7717846B2 (ja
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Priority claimed from PCT/JP2023/000342 external-priority patent/WO2023136242A1/ja
Publication of JPWO2023136242A1 publication Critical patent/JPWO2023136242A1/ja
Publication of JPWO2023136242A5 publication Critical patent/JPWO2023136242A5/ja
Application granted granted Critical
Publication of JP7717846B2 publication Critical patent/JP7717846B2/ja
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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JP2023574033A 2022-01-11 2023-01-10 磁気ディスク用基板及びこれを用いた磁気ディスク Active JP7717846B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2022002122 2022-01-11
JP2022002122 2022-01-11
PCT/JP2023/000342 WO2023136242A1 (ja) 2022-01-11 2023-01-10 磁気ディスク用基板及びこれを用いた磁気ディスク

Publications (3)

Publication Number Publication Date
JPWO2023136242A1 JPWO2023136242A1 (cg-RX-API-DMAC7.html) 2023-07-20
JPWO2023136242A5 true JPWO2023136242A5 (cg-RX-API-DMAC7.html) 2024-06-24
JP7717846B2 JP7717846B2 (ja) 2025-08-04

Family

ID=87279116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2023574033A Active JP7717846B2 (ja) 2022-01-11 2023-01-10 磁気ディスク用基板及びこれを用いた磁気ディスク

Country Status (4)

Country Link
US (1) US20240355357A1 (cg-RX-API-DMAC7.html)
JP (1) JP7717846B2 (cg-RX-API-DMAC7.html)
CN (1) CN118435279A (cg-RX-API-DMAC7.html)
WO (1) WO2023136242A1 (cg-RX-API-DMAC7.html)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07226044A (ja) * 1994-02-08 1995-08-22 Sony Corp 磁気ディスク
SG11201503250RA (en) 2012-10-31 2015-06-29 Hoya Corp Method for manufacturing glass substrate for magnetic disk and method for manufacturing magnetic disk
JP6505959B1 (ja) 2017-09-29 2019-04-24 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
MY208527A (en) 2018-08-07 2025-05-14 Hoya Corp Substrate for magnetic disk and magnetic disk
JP7037600B2 (ja) 2020-07-03 2022-03-16 株式会社Uacj 磁気ディスク用基板及び当該磁気ディスク用基板を用いた磁気ディスク

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