JPS5623A - Magnetic head and its manufacture - Google Patents

Magnetic head and its manufacture

Info

Publication number
JPS5623A
JPS5623A JP7462179A JP7462179A JPS5623A JP S5623 A JPS5623 A JP S5623A JP 7462179 A JP7462179 A JP 7462179A JP 7462179 A JP7462179 A JP 7462179A JP S5623 A JPS5623 A JP S5623A
Authority
JP
Japan
Prior art keywords
groove
magnetic head
width
gap
length
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
JP7462179A
Other languages
Japanese (ja)
Other versions
JPS6331850B2 (en
Inventor
Teizo Tamura
Kaoru Sakamoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP7462179A priority Critical patent/JPS5623A/en
Publication of JPS5623A publication Critical patent/JPS5623A/en
Publication of JPS6331850B2 publication Critical patent/JPS6331850B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Heads (AREA)

Abstract

PURPOSE: To reduce the crosstalk for adjacent and further adjacent tracks, by manufacturing the magnetic head so that the line part forming the ridge of concave groove and the gap can not be parallel, in the magnetic head providing the concave groove regulating the track width near the gap.
CONSTITUTION: To the first core 1a and the second core 1b incorporated with glass bonding, the first groove 2a having semisphere part at the tip, specified width B and length l1 is machined with the first grindstone, and next at least one of the second groove 2b having the semisphere shape at the tip, width D smaller than the width B of the groove 2a and length l2 longer than the length l1 of the first groove 2a is machined with the second grindstone, to form the concave groove 2 without almost parallel line parts with the gap 3 and having ridge consisting of a plurality of discontinuous curves, to obtain the objective magnetic head by filling in nonmagnetic substance glass.
COPYRIGHT: (C)1981,JPO&Japio
JP7462179A 1979-06-15 1979-06-15 Magnetic head and its manufacture Granted JPS5623A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7462179A JPS5623A (en) 1979-06-15 1979-06-15 Magnetic head and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7462179A JPS5623A (en) 1979-06-15 1979-06-15 Magnetic head and its manufacture

Publications (2)

Publication Number Publication Date
JPS5623A true JPS5623A (en) 1981-01-06
JPS6331850B2 JPS6331850B2 (en) 1988-06-27

Family

ID=13552428

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7462179A Granted JPS5623A (en) 1979-06-15 1979-06-15 Magnetic head and its manufacture

Country Status (1)

Country Link
JP (1) JPS5623A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223012A (en) * 1984-04-18 1985-11-07 Sony Corp Magnetic head
JPS63149807A (en) * 1986-12-12 1988-06-22 Ngk Insulators Ltd Magnetic head core and its manufacture
US4758916A (en) * 1985-09-10 1988-07-19 Victor Company Of Japan, Ltd. Multi-head transducer assembly for helical scan video tape recorders

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147310A (en) * 1975-06-12 1976-12-17 Matsushita Electric Ind Co Ltd Production method of magnetic head
JPS53129018A (en) * 1977-04-18 1978-11-10 Victor Co Of Japan Ltd Production of magnetic head core
JPS5463806A (en) * 1977-10-31 1979-05-23 Sony Corp Production of magnetic head

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51147310A (en) * 1975-06-12 1976-12-17 Matsushita Electric Ind Co Ltd Production method of magnetic head
JPS53129018A (en) * 1977-04-18 1978-11-10 Victor Co Of Japan Ltd Production of magnetic head core
JPS5463806A (en) * 1977-10-31 1979-05-23 Sony Corp Production of magnetic head

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60223012A (en) * 1984-04-18 1985-11-07 Sony Corp Magnetic head
JPH0475564B2 (en) * 1984-04-18 1992-12-01 Sony Corp
US4758916A (en) * 1985-09-10 1988-07-19 Victor Company Of Japan, Ltd. Multi-head transducer assembly for helical scan video tape recorders
JPS63149807A (en) * 1986-12-12 1988-06-22 Ngk Insulators Ltd Magnetic head core and its manufacture

Also Published As

Publication number Publication date
JPS6331850B2 (en) 1988-06-27

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