GB2274018B - Magnetic head - Google Patents

Magnetic head

Info

Publication number
GB2274018B
GB2274018B GB9402110A GB9402110A GB2274018B GB 2274018 B GB2274018 B GB 2274018B GB 9402110 A GB9402110 A GB 9402110A GB 9402110 A GB9402110 A GB 9402110A GB 2274018 B GB2274018 B GB 2274018B
Authority
GB
United Kingdom
Prior art keywords
magnetic head
magnetic
head
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 - Fee Related
Application number
GB9402110A
Other versions
GB2274018A (en
GB9402110D0 (en
Inventor
Masaru Nishimura
Takeshi Terazawa
Naoto Sugawa
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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
Priority claimed from JP3367790A external-priority patent/JPH03238607A/en
Priority claimed from JP3367890A external-priority patent/JPH03238608A/en
Priority claimed from JP4788190A external-priority patent/JPH03250410A/en
Priority claimed from JP18452190A external-priority patent/JPH03278305A/en
Priority claimed from GB9103010A external-priority patent/GB2242774B/en
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Publication of GB9402110D0 publication Critical patent/GB9402110D0/en
Publication of GB2274018A publication Critical patent/GB2274018A/en
Application granted granted Critical
Publication of GB2274018B publication Critical patent/GB2274018B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/265—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track
    • G11B5/2652—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative
    • G11B5/2654—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing
    • G11B5/2655—Structure or manufacture of a head with more than one gap for erasing, recording or reproducing on the same track with more than one gap simultaneously operative for recording or erasing with all the gaps disposed within the track or "guard band" between tracks, e.g. with erase gaps operative on track edges, with wide erase gap followed by narrow write gap

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
GB9402110A 1990-02-16 1994-02-03 Magnetic head Expired - Fee Related GB2274018B (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP3367790A JPH03238607A (en) 1990-02-16 1990-02-16 Magnetic head
JP3367890A JPH03238608A (en) 1990-02-16 1990-02-16 Magnetic head
JP4788190A JPH03250410A (en) 1990-02-28 1990-02-28 Magnetic head
JP7471490 1990-03-23
JP18452190A JPH03278305A (en) 1990-03-23 1990-07-10 Magnetic head
GB9103010A GB2242774B (en) 1990-02-16 1991-02-13 Magnetic head

Publications (3)

Publication Number Publication Date
GB9402110D0 GB9402110D0 (en) 1994-03-30
GB2274018A GB2274018A (en) 1994-07-06
GB2274018B true GB2274018B (en) 1994-09-21

Family

ID=27547126

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9402110A Expired - Fee Related GB2274018B (en) 1990-02-16 1994-02-03 Magnetic head

Country Status (1)

Country Link
GB (1) GB2274018B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2009483A (en) * 1977-12-05 1979-06-13 Ibm Magnetic erase head and method of producing same
GB1565301A (en) * 1977-01-20 1980-04-16 Data Recording Instr Co Magnetic materials
GB2099204A (en) * 1981-05-18 1982-12-01 Tokyo Shibaura Electric Co Combination magnetic head
US4768120A (en) * 1986-09-08 1988-08-30 Alps Electric Co., Ltd. Complex magnetic head having non-magnetic center core

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1565301A (en) * 1977-01-20 1980-04-16 Data Recording Instr Co Magnetic materials
GB2009483A (en) * 1977-12-05 1979-06-13 Ibm Magnetic erase head and method of producing same
GB2099204A (en) * 1981-05-18 1982-12-01 Tokyo Shibaura Electric Co Combination magnetic head
US4768120A (en) * 1986-09-08 1988-08-30 Alps Electric Co., Ltd. Complex magnetic head having non-magnetic center core

Also Published As

Publication number Publication date
GB2274018A (en) 1994-07-06
GB9402110D0 (en) 1994-03-30

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 19960611

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20080213