JPS5542351A - Compound magnetic head and its manufacture - Google Patents

Compound magnetic head and its manufacture

Info

Publication number
JPS5542351A
JPS5542351A JP11557778A JP11557778A JPS5542351A JP S5542351 A JPS5542351 A JP S5542351A JP 11557778 A JP11557778 A JP 11557778A JP 11557778 A JP11557778 A JP 11557778A JP S5542351 A JPS5542351 A JP S5542351A
Authority
JP
Japan
Prior art keywords
magnetic
core
groove
width
highly
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
JP11557778A
Other languages
Japanese (ja)
Other versions
JPS6259365B2 (en
Inventor
Yoshiji Nakagawa
Kazuo Nakamura
Eishiyou Sawai
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP11557778A priority Critical patent/JPS5542351A/en
Publication of JPS5542351A publication Critical patent/JPS5542351A/en
Publication of JPS6259365B2 publication Critical patent/JPS6259365B2/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

Landscapes

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

Abstract

PURPOSE:To increase reproduction efficiency and to make a video head hard to saturate in recording by combining a high-permeability magnetic material such as ferrite with a highly-saturable magnetic-flux density material such as Sendust. CONSTITUTION:Yoke part 3 consisting of high-permeability and high-resistivity magnetic materials and constituting at least a back core part is provided at the center part of Wc in core thickness with cut groove 4 of width W' nearly equal to track width W. In this groove 4, 1st head core 1 is buried and fixed which has highly- saturable magnetic-flux density and fixed width W and is made of a magnetic material, and the groove 5 is also charged with a nonmagnetic material. Further, there is no need to provide it to back core part 7 under winding window 6 like core 1 and burying only pole piece part 1' is recommendable. A closed magnetic circuit of a ring type magnetic head consists of two those core half bodies.
JP11557778A 1978-09-19 1978-09-19 Compound magnetic head and its manufacture Granted JPS5542351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11557778A JPS5542351A (en) 1978-09-19 1978-09-19 Compound magnetic head and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11557778A JPS5542351A (en) 1978-09-19 1978-09-19 Compound magnetic head and its manufacture

Publications (2)

Publication Number Publication Date
JPS5542351A true JPS5542351A (en) 1980-03-25
JPS6259365B2 JPS6259365B2 (en) 1987-12-10

Family

ID=14666013

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11557778A Granted JPS5542351A (en) 1978-09-19 1978-09-19 Compound magnetic head and its manufacture

Country Status (1)

Country Link
JP (1) JPS5542351A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152516A (en) * 1983-02-18 1984-08-31 Sony Corp Magnetic head and its production
FR2606920A1 (en) * 1986-11-18 1988-05-20 Europ Composants Electron MAGNETIC HEAD FOR MAGNETIC TRACKS WITH HIGH COERCITIVE FIELD AND MANUFACTURING METHOD

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871215A (en) * 1971-12-25 1973-09-27
JPS52128115A (en) * 1976-04-20 1977-10-27 Matsushita Electric Ind Co Ltd Magnetic head and its production

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871215A (en) * 1971-12-25 1973-09-27
JPS52128115A (en) * 1976-04-20 1977-10-27 Matsushita Electric Ind Co Ltd Magnetic head and its production

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59152516A (en) * 1983-02-18 1984-08-31 Sony Corp Magnetic head and its production
FR2606920A1 (en) * 1986-11-18 1988-05-20 Europ Composants Electron MAGNETIC HEAD FOR MAGNETIC TRACKS WITH HIGH COERCITIVE FIELD AND MANUFACTURING METHOD

Also Published As

Publication number Publication date
JPS6259365B2 (en) 1987-12-10

Similar Documents

Publication Publication Date Title
JPS55117723A (en) Magnetic head
ATE41256T1 (en) MAGNETIC HEAD.
JPS545417A (en) Magnetic head
JPS53116809A (en) Magnetic head core
JPS5496013A (en) Compound magnetic head
JPS5542351A (en) Compound magnetic head and its manufacture
JPS6482310A (en) Composite type magnetic head
JPS56114115A (en) Magnetic head
JPS5674809A (en) Vertical recording/reproducing magnetic head
JPS57162116A (en) Compound magnetic head and its manufacture
JPS5545101A (en) Multi-element magnetic head and its manufacture
JPS52137313A (en) Magnetic head
JPS6442012A (en) Magnetic head
JPS57130221A (en) Vertical magnetization recording and reproducing head
JPS5558827A (en) Manufacture for magnetic head
JPS5616931A (en) Magnetic video recording and reproducing head
JPS5651019A (en) Composite type magnetic head
JPS5634A (en) Magnetic recording medium
JPS5313906A (en) Magnetic recording material
JPS5567926A (en) Magnetic erase head
JPS56169215A (en) Magnetic erasing head and its manufacture
JPS5629828A (en) Magnetic recording and reproduction head
JPS57210419A (en) Erasing head
JPS5528513A (en) Erasion magnetic head
JPS5463808A (en) Multi-channel magnetic head