JPS5769524A - Magnetic head - Google Patents

Magnetic head

Info

Publication number
JPS5769524A
JPS5769524A JP14509980A JP14509980A JPS5769524A JP S5769524 A JPS5769524 A JP S5769524A JP 14509980 A JP14509980 A JP 14509980A JP 14509980 A JP14509980 A JP 14509980A JP S5769524 A JPS5769524 A JP S5769524A
Authority
JP
Japan
Prior art keywords
head
recording
playback
magnetic
exerted
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.)
Granted
Application number
JP14509980A
Other languages
Japanese (ja)
Other versions
JPS6215930B2 (en
Inventor
Tetsuo Hirota
Masayuki Suzaki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP14509980A priority Critical patent/JPS5769524A/en
Publication of JPS5769524A publication Critical patent/JPS5769524A/en
Publication of JPS6215930B2 publication Critical patent/JPS6215930B2/ja
Granted 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

Landscapes

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

Abstract

PURPOSE:To prevent the occurrence of a readout error by installing a recording- playback and an erasing head as magnetic heads at an interval where the the influence of leakage flux by the erasing head is not exerted. CONSTITUTION:A magnetic head consists of a recording-playback head 1 and an erasing head 2, which has the 1st and 2nd erasure magnetic paths on both the sides of the magnetic path of the recording-playback head 1; and the heads 1 and 2 have an interval (d) where the influence of leakage flux by the erasure head 2 is not exerted. Then, this interval (d) is preferably 20-25 times the width gE of the erasure gap of the erasing head 2. Consequently, even if the off-track where the recording-playback head 1 relatively shifts for recording track position occurs, the influence of the leakage flux is not exerted and the output waveform of the recording-playback head 1 is prevented from causing distortion.
JP14509980A 1980-10-17 1980-10-17 Magnetic head Granted JPS5769524A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14509980A JPS5769524A (en) 1980-10-17 1980-10-17 Magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14509980A JPS5769524A (en) 1980-10-17 1980-10-17 Magnetic head

Publications (2)

Publication Number Publication Date
JPS5769524A true JPS5769524A (en) 1982-04-28
JPS6215930B2 JPS6215930B2 (en) 1987-04-09

Family

ID=15377344

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14509980A Granted JPS5769524A (en) 1980-10-17 1980-10-17 Magnetic head

Country Status (1)

Country Link
JP (1) JPS5769524A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7897219B2 (en) 2004-06-01 2011-03-01 Automated Packaging Systems, Inc. Web and method for making fluid filled units
WO2009058749A1 (en) 2007-10-31 2009-05-07 Automated Packaging Systems, Inc. Web and method for making fluid filled units

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015130A (en) * 1973-06-12 1975-02-18
JPS5040118A (en) * 1973-08-10 1975-04-12
JPS5093128A (en) * 1973-12-19 1975-07-25
JPS5093129A (en) * 1973-12-19 1975-07-25
JPS538118A (en) * 1976-07-10 1978-01-25 Sony Corp Composite type magnetic head
JPS5331763A (en) * 1976-09-04 1978-03-25 Ikegami Kaken Kogyo Molds for rotary molding made by electrocasting

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015130A (en) * 1973-06-12 1975-02-18
JPS5040118A (en) * 1973-08-10 1975-04-12
JPS5093128A (en) * 1973-12-19 1975-07-25
JPS5093129A (en) * 1973-12-19 1975-07-25
JPS538118A (en) * 1976-07-10 1978-01-25 Sony Corp Composite type magnetic head
JPS5331763A (en) * 1976-09-04 1978-03-25 Ikegami Kaken Kogyo Molds for rotary molding made by electrocasting

Also Published As

Publication number Publication date
JPS6215930B2 (en) 1987-04-09

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