JPS57210403A - Magnetic disc unit - Google Patents

Magnetic disc unit

Info

Publication number
JPS57210403A
JPS57210403A JP8999882A JP8999882A JPS57210403A JP S57210403 A JPS57210403 A JP S57210403A JP 8999882 A JP8999882 A JP 8999882A JP 8999882 A JP8999882 A JP 8999882A JP S57210403 A JPS57210403 A JP S57210403A
Authority
JP
Japan
Prior art keywords
magnetic disc
disc unit
unit
magnetic
disc
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.)
Pending
Application number
JP8999882A
Other languages
Japanese (ja)
Inventor
Mashiyuu Gurogan Jiyon
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.)
International Business Machines Corp
Original Assignee
International Business Machines 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 International Business Machines Corp filed Critical International Business Machines Corp
Publication of JPS57210403A publication Critical patent/JPS57210403A/en
Pending legal-status Critical Current

Links

Landscapes

  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Recording Or Reproducing By Magnetic Means (AREA)
JP8999882A 1981-05-29 1982-05-28 Magnetic disc unit Pending JPS57210403A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26841481A 1981-05-29 1981-05-29

Publications (1)

Publication Number Publication Date
JPS57210403A true JPS57210403A (en) 1982-12-24

Family

ID=23022900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8999882A Pending JPS57210403A (en) 1981-05-29 1982-05-28 Magnetic disc unit

Country Status (1)

Country Link
JP (1) JPS57210403A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5109311A (en) * 1988-03-23 1992-04-28 Hitachi, Ltd. Magnetic disk device and method of recording/retrieving information
US5671107A (en) * 1989-12-13 1997-09-23 Hitachi, Ltd. Large capacity magnetic disc apparatus with a particular relationship between pole thickness, saturated flux density, and recording wavelength

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5392109A (en) * 1977-01-25 1978-08-12 Nippon Telegr & Teleph Corp <Ntt> Magnetic disk storage unit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5392109A (en) * 1977-01-25 1978-08-12 Nippon Telegr & Teleph Corp <Ntt> Magnetic disk storage unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5109311A (en) * 1988-03-23 1992-04-28 Hitachi, Ltd. Magnetic disk device and method of recording/retrieving information
US5671107A (en) * 1989-12-13 1997-09-23 Hitachi, Ltd. Large capacity magnetic disc apparatus with a particular relationship between pole thickness, saturated flux density, and recording wavelength

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