JPWO2023027140A1 - - Google Patents
Info
- Publication number
- JPWO2023027140A1 JPWO2023027140A1 JP2023543973A JP2023543973A JPWO2023027140A1 JP WO2023027140 A1 JPWO2023027140 A1 JP WO2023027140A1 JP 2023543973 A JP2023543973 A JP 2023543973A JP 2023543973 A JP2023543973 A JP 2023543973A JP WO2023027140 A1 JPWO2023027140 A1 JP WO2023027140A1
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/04—Lapping machines or devices; Accessories designed for working plane surfaces
- B24B37/07—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool
- B24B37/08—Lapping machines or devices; Accessories designed for working plane surfaces characterised by the movement of the work or lapping tool for double side lapping
-
- 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
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- 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
-
- 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
- G11B5/82—Disk 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
- G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2021137728 | 2021-08-26 | ||
PCT/JP2022/032021 WO2023027140A1 (ja) | 2021-08-26 | 2022-08-25 | 磁気ディスク用基板及びその製造方法並びに磁気ディスク |
Publications (1)
Publication Number | Publication Date |
---|---|
JPWO2023027140A1 true JPWO2023027140A1 (ja) | 2023-03-02 |
Family
ID=85322911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2023543973A Pending JPWO2023027140A1 (ja) | 2021-08-26 | 2022-08-25 |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPWO2023027140A1 (ja) |
CN (1) | CN117897766A (ja) |
WO (1) | WO2023027140A1 (ja) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013046583A1 (ja) * | 2011-09-28 | 2013-04-04 | コニカミノルタアドバンストレイヤー株式会社 | Hdd用ガラス基板、hdd用ガラス基板の製造方法及びhdd用情報記録媒体の製造方法 |
WO2013047190A1 (ja) * | 2011-09-30 | 2013-04-04 | コニカミノルタアドバンストレイヤー株式会社 | 情報記録媒体用ガラス基板の製造方法 |
WO2014156189A1 (ja) * | 2013-03-28 | 2014-10-02 | Hoya株式会社 | ハードディスク用ガラス基板及びその製造方法 |
-
2022
- 2022-08-25 WO PCT/JP2022/032021 patent/WO2023027140A1/ja active Application Filing
- 2022-08-25 JP JP2023543973A patent/JPWO2023027140A1/ja active Pending
- 2022-08-25 CN CN202280057631.XA patent/CN117897766A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
CN117897766A (zh) | 2024-04-16 |
WO2023027140A1 (ja) | 2023-03-02 |