GB2043983B - Magnetic tape demagnetizing method and apparatus - Google Patents

Magnetic tape demagnetizing method and apparatus

Info

Publication number
GB2043983B
GB2043983B GB7942514A GB7942514A GB2043983B GB 2043983 B GB2043983 B GB 2043983B GB 7942514 A GB7942514 A GB 7942514A GB 7942514 A GB7942514 A GB 7942514A GB 2043983 B GB2043983 B GB 2043983B
Authority
GB
United Kingdom
Prior art keywords
magnetic tape
demagnetizing method
demagnetizing
tape
magnetic
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
GB7942514A
Other versions
GB2043983A (en
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.)
SANSHIN DENKI CO Ltd
Original Assignee
SANSHIN DENKI 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 SANSHIN DENKI CO Ltd filed Critical SANSHIN DENKI CO Ltd
Publication of GB2043983A publication Critical patent/GB2043983A/en
Application granted granted Critical
Publication of GB2043983B publication Critical patent/GB2043983B/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G11B5/024—Erasing
    • G11B5/0245—Bulk erasing
GB7942514A 1978-12-11 1979-12-10 Magnetic tape demagnetizing method and apparatus Expired GB2043983B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15329078A JPS5580806A (en) 1978-12-11 1978-12-11 Method and device for demagnetization of magnetic tape

Publications (2)

Publication Number Publication Date
GB2043983A GB2043983A (en) 1980-10-08
GB2043983B true GB2043983B (en) 1982-12-15

Family

ID=15559235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7942514A Expired GB2043983B (en) 1978-12-11 1979-12-10 Magnetic tape demagnetizing method and apparatus

Country Status (3)

Country Link
JP (1) JPS5580806A (en)
GB (1) GB2043983B (en)
NL (1) NL7908904A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5774808A (en) * 1980-10-27 1982-05-11 Denshi Jiki Kogyo Kk Demagnetizing method of magnetic tape
DE3736024C1 (en) * 1987-10-24 1989-03-23 Agfa Gevaert Ag Demagnetising device
FR2725866A1 (en) * 1994-10-13 1996-04-19 Muller Johannes Rotary loudspeaker platform for more realistic listening conditions, e.g. in concert hall
WO2007020970A1 (en) * 2005-08-19 2007-02-22 Orient Instrument Computer Co., Ltd. Data eraser, and data erasing method

Also Published As

Publication number Publication date
JPS5580806A (en) 1980-06-18
NL7908904A (en) 1980-06-13
GB2043983A (en) 1980-10-08

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee