JPS6240140B2 - - Google Patents

Info

Publication number
JPS6240140B2
JPS6240140B2 JP54030252A JP3025279A JPS6240140B2 JP S6240140 B2 JPS6240140 B2 JP S6240140B2 JP 54030252 A JP54030252 A JP 54030252A JP 3025279 A JP3025279 A JP 3025279A JP S6240140 B2 JPS6240140 B2 JP S6240140B2
Authority
JP
Japan
Prior art keywords
polishing
magnetic disk
substrate
disk substrate
surface roughness
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.)
Expired
Application number
JP54030252A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55125976A (en
Inventor
Masanari Mihashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NEC Corp
Original Assignee
Nippon Electric Co Ltd
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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP3025279A priority Critical patent/JPS55125976A/ja
Publication of JPS55125976A publication Critical patent/JPS55125976A/ja
Publication of JPS6240140B2 publication Critical patent/JPS6240140B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Thin Magnetic Films (AREA)
JP3025279A 1979-03-15 1979-03-15 Method for finishing base plate to mirror finished surface Granted JPS55125976A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3025279A JPS55125976A (en) 1979-03-15 1979-03-15 Method for finishing base plate to mirror finished surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3025279A JPS55125976A (en) 1979-03-15 1979-03-15 Method for finishing base plate to mirror finished surface

Publications (2)

Publication Number Publication Date
JPS55125976A JPS55125976A (en) 1980-09-29
JPS6240140B2 true JPS6240140B2 (cs) 1987-08-26

Family

ID=12298512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3025279A Granted JPS55125976A (en) 1979-03-15 1979-03-15 Method for finishing base plate to mirror finished surface

Country Status (1)

Country Link
JP (1) JPS55125976A (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57144654A (en) * 1981-03-03 1982-09-07 Nec Corp Polishing method for high density magnetic disk substrate
JPS6148123A (ja) * 1984-08-15 1986-03-08 Sumitomo Special Metals Co Ltd 記録デイスク用基板の製造方法
US6236542B1 (en) 1994-01-21 2001-05-22 International Business Machines Corporation Substrate independent superpolishing process and slurry
CN115139191B (zh) * 2022-09-05 2022-11-22 歌尔光学科技有限公司 光学镜片模仁的抛光方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5380897A (en) * 1976-12-27 1978-07-17 Fujitsu Ltd Method for grinding ferrite sintered bodies

Also Published As

Publication number Publication date
JPS55125976A (en) 1980-09-29

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