JPS5522205A - Erase head - Google Patents

Erase head

Info

Publication number
JPS5522205A
JPS5522205A JP9144578A JP9144578A JPS5522205A JP S5522205 A JPS5522205 A JP S5522205A JP 9144578 A JP9144578 A JP 9144578A JP 9144578 A JP9144578 A JP 9144578A JP S5522205 A JPS5522205 A JP S5522205A
Authority
JP
Japan
Prior art keywords
gap
magnetic
sheets
shorter
flux density
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
JP9144578A
Other languages
Japanese (ja)
Other versions
JPS6248287B2 (en
Inventor
Shinji Yasuda
Kazuhiko Sato
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP9144578A priority Critical patent/JPS5522205A/en
Publication of JPS5522205A publication Critical patent/JPS5522205A/en
Publication of JPS6248287B2 publication Critical patent/JPS6248287B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a semidouble gap composite type erase head featiring a simple constitution with a high erasing effect by forming the gap part with three sheets of high magnetic flux density material one of which is shorter than rest two at the center to the direction vertical to the sliding of the magnetic tape.
CONSTITUTION: Three sheets of high magnetic flux density material 21, 2 and 21 are fixed together by bonding via gap formation spacer 3 and then cut out into the necessary track width to be inserted into the gap formation part of magnetic core 1 with fixture by bonding. In this case, the center material 2 is cut shorter than the right and left materials. The ferrite featuring a high intrinsic resistance is used for core 1, and the Sendust of a high abrasive resistance is used for materials 21 and 2. As a result, the magnetic field in the gap can be increased up to the saturation density of the formed chip at the gap part, securing erasion of the magnetic tape even with Hc1000 Oe or more.
COPYRIGHT: (C)1980,JPO&Japio
JP9144578A 1978-07-28 1978-07-28 Erase head Granted JPS5522205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9144578A JPS5522205A (en) 1978-07-28 1978-07-28 Erase head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9144578A JPS5522205A (en) 1978-07-28 1978-07-28 Erase head

Publications (2)

Publication Number Publication Date
JPS5522205A true JPS5522205A (en) 1980-02-16
JPS6248287B2 JPS6248287B2 (en) 1987-10-13

Family

ID=14026559

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9144578A Granted JPS5522205A (en) 1978-07-28 1978-07-28 Erase head

Country Status (1)

Country Link
JP (1) JPS5522205A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547318A (en) * 1977-06-17 1979-01-20 Canon Inc Erase head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547318A (en) * 1977-06-17 1979-01-20 Canon Inc Erase head

Also Published As

Publication number Publication date
JPS6248287B2 (en) 1987-10-13

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