JPS6140044B2 - - Google Patents

Info

Publication number
JPS6140044B2
JPS6140044B2 JP1561279A JP1561279A JPS6140044B2 JP S6140044 B2 JPS6140044 B2 JP S6140044B2 JP 1561279 A JP1561279 A JP 1561279A JP 1561279 A JP1561279 A JP 1561279A JP S6140044 B2 JPS6140044 B2 JP S6140044B2
Authority
JP
Japan
Prior art keywords
head
output
magnetic disk
disk
pulse motor
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
JP1561279A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55108931A (en
Inventor
Akira Minami
Kenichi Ito
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP1561279A priority Critical patent/JPS55108931A/ja
Publication of JPS55108931A publication Critical patent/JPS55108931A/ja
Publication of JPS6140044B2 publication Critical patent/JPS6140044B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
  • Measuring Magnetic Variables (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
JP1561279A 1979-02-13 1979-02-13 Inspection method of magnetic disc surface Granted JPS55108931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1561279A JPS55108931A (en) 1979-02-13 1979-02-13 Inspection method of magnetic disc surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1561279A JPS55108931A (en) 1979-02-13 1979-02-13 Inspection method of magnetic disc surface

Publications (2)

Publication Number Publication Date
JPS55108931A JPS55108931A (en) 1980-08-21
JPS6140044B2 true JPS6140044B2 (enExample) 1986-09-06

Family

ID=11893520

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1561279A Granted JPS55108931A (en) 1979-02-13 1979-02-13 Inspection method of magnetic disc surface

Country Status (1)

Country Link
JP (1) JPS55108931A (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5737207A (en) * 1980-08-19 1982-03-01 Nippon Telegr & Teleph Corp <Ntt> Detecting mechanism for projection part on recording medium
JPS617480A (ja) * 1984-06-21 1986-01-14 Hitachi Electronics Eng Co Ltd ディスク型記録媒体テスタ
JPS62134555A (ja) * 1985-12-06 1987-06-17 Fujitsu Ltd 磁気記録媒体の試験方法
CN105403179B (zh) * 2015-11-21 2018-01-02 中北大学 超声深孔直线度检测方法及装置

Also Published As

Publication number Publication date
JPS55108931A (en) 1980-08-21

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