JPS51114112A - Tape recorder erasing heads and method of manufacture thereof - Google Patents

Tape recorder erasing heads and method of manufacture thereof

Info

Publication number
JPS51114112A
JPS51114112A JP3890875A JP3890875A JPS51114112A JP S51114112 A JPS51114112 A JP S51114112A JP 3890875 A JP3890875 A JP 3890875A JP 3890875 A JP3890875 A JP 3890875A JP S51114112 A JPS51114112 A JP S51114112A
Authority
JP
Japan
Prior art keywords
manufacture
tape recorder
erasing heads
heads
erasing
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
JP3890875A
Other languages
Japanese (ja)
Inventor
Takeaki Nakamura
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.)
Olympus Corp
Original Assignee
Olympus Optical 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 Olympus Optical Co Ltd filed Critical Olympus Optical Co Ltd
Priority to JP3890875A priority Critical patent/JPS51114112A/en
Publication of JPS51114112A publication Critical patent/JPS51114112A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127Structure or manufacture of heads, e.g. inductive
    • G11B5/325Erasing heads using permanent magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To form erasing heads in the shape of discs, and then facilitate polishing a multiple number of them simultaneously by employing a simple supporting device.
JP3890875A 1975-03-31 1975-03-31 Tape recorder erasing heads and method of manufacture thereof Pending JPS51114112A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3890875A JPS51114112A (en) 1975-03-31 1975-03-31 Tape recorder erasing heads and method of manufacture thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3890875A JPS51114112A (en) 1975-03-31 1975-03-31 Tape recorder erasing heads and method of manufacture thereof

Publications (1)

Publication Number Publication Date
JPS51114112A true JPS51114112A (en) 1976-10-07

Family

ID=12538288

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3890875A Pending JPS51114112A (en) 1975-03-31 1975-03-31 Tape recorder erasing heads and method of manufacture thereof

Country Status (1)

Country Link
JP (1) JPS51114112A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193310U (en) * 1982-06-16 1983-12-22 松下電器産業株式会社 Permanent magnet erase head
JPS6051612U (en) * 1983-09-14 1985-04-11 松下電器産業株式会社 Permanent magnet erase head

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58193310U (en) * 1982-06-16 1983-12-22 松下電器産業株式会社 Permanent magnet erase head
JPH0244328Y2 (en) * 1982-06-16 1990-11-26
JPS6051612U (en) * 1983-09-14 1985-04-11 松下電器産業株式会社 Permanent magnet erase head

Similar Documents

Publication Publication Date Title
GB1552008A (en) Information reproducing apparatus
AU498076B2 (en) Magnetic disk information storage apparatus
AU508422B2 (en) Recording method
AU502879B2 (en) Magnetic recording method
AU1948276A (en) Phonograph record player
GB1545234A (en) Information play-back apparatus
JPS5241534A (en) Resersible data recording method
GB1544253A (en) Phonographs for use in toys
JPS51114112A (en) Tape recorder erasing heads and method of manufacture thereof
JPS52106706A (en) Magnetic recording device
JPS51114113A (en) Tape recorder erasing heads and method of manufacture thereof
JPS52150604A (en) Disk player
JPS5321913A (en) Magnetic recording and reproducing apparatus
JPS5233506A (en) Control device of the revolving component of the magnetic recording reproduction device
JPS52125303A (en) Record disk
JPS52135702A (en) Disk player
JPS5211010A (en) Method of producing the capstan spindle of tape recorder and tape play er
JPS5233703A (en) Method of evaluating boundary lubrication conditions of magnetic disk
JPS5334504A (en) Disk record player
JPS527230A (en) Rapid wind-back recording and reproducing device for tape recorder
JPS5339106A (en) Magnetic disc memory device
JPS52135703A (en) Disk player
JPS5219509A (en) Magnetic recording reproducing device
JPS5269605A (en) Card type recording and playback device
AU488575B2 (en) Method for preparing stable beta-lactam-type-antibiotic susceptibility test discs