JPS6439612A - Magnetic head for high frequency - Google Patents

Magnetic head for high frequency

Info

Publication number
JPS6439612A
JPS6439612A JP62196715A JP19671587A JPS6439612A JP S6439612 A JPS6439612 A JP S6439612A JP 62196715 A JP62196715 A JP 62196715A JP 19671587 A JP19671587 A JP 19671587A JP S6439612 A JPS6439612 A JP S6439612A
Authority
JP
Japan
Prior art keywords
fe2o3
compsn
magnetic head
content
magnetic
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.)
Pending
Application number
JP62196715A
Other languages
Japanese (ja)
Inventor
Koichi Kugimiya
Mitsuo Satomi
Takeshi Hirota
Hideyuki Todaka
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 JP62196715A priority Critical patent/JPS6439612A/en
Publication of JPS6439612A publication Critical patent/JPS6439612A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Ceramics (AREA)
  • Magnetic Heads (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

PURPOSE:To provide a magnetic head which can deal with a high-coercive force tape by using a ferrite material, of which the molar ratios of Fe2O3/MnO/ ZnO are in the compsn. range enclosed by specific 4 points in the compsn. diagram and the content of bivalent iron is >=60% of the excess total iron content in which Fe2O3 exceeds 50mol.%. CONSTITUTION:The magnetic head is constituted by using the magnetic core consisting of the ferrite material, the molar ratios of Fe2O3/MnO/ZnO are in the compsn. range within the rectangle enclosed by the four points 61/21/18, 64/18/18, 61/15/24, 58/18/24, respectively, in the compsn. diagram and the content of the bivalent iron is >=60% in the excess total iron content in which Fe2O3 exceeds 50mol.%. The high-magnetic head which has a high magnetic flux density, has high coercive force even in a high-frequency range of >=5MHz and can lower sliding noises at >=1.5m/sec relative speed with a magnetic recording medium and in a frequency range inclusive of >=7MHz recording and reproducing frequency.
JP62196715A 1987-08-06 1987-08-06 Magnetic head for high frequency Pending JPS6439612A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62196715A JPS6439612A (en) 1987-08-06 1987-08-06 Magnetic head for high frequency

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62196715A JPS6439612A (en) 1987-08-06 1987-08-06 Magnetic head for high frequency

Publications (1)

Publication Number Publication Date
JPS6439612A true JPS6439612A (en) 1989-02-09

Family

ID=16362387

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62196715A Pending JPS6439612A (en) 1987-08-06 1987-08-06 Magnetic head for high frequency

Country Status (1)

Country Link
JP (1) JPS6439612A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6249202B1 (en) 1998-12-28 2001-06-19 Sumida Corporation Inductance element
JP2012142471A (en) * 2011-01-04 2012-07-26 Tdk Corp Ferrite composition and electronic component

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6249202B1 (en) 1998-12-28 2001-06-19 Sumida Corporation Inductance element
JP2012142471A (en) * 2011-01-04 2012-07-26 Tdk Corp Ferrite composition and electronic component

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