JPH0152809B2 - - Google Patents

Info

Publication number
JPH0152809B2
JPH0152809B2 JP56017248A JP1724881A JPH0152809B2 JP H0152809 B2 JPH0152809 B2 JP H0152809B2 JP 56017248 A JP56017248 A JP 56017248A JP 1724881 A JP1724881 A JP 1724881A JP H0152809 B2 JPH0152809 B2 JP H0152809B2
Authority
JP
Japan
Prior art keywords
groove
gap
glass
welding
forming
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.)
Expired
Application number
JP56017248A
Other languages
English (en)
Japanese (ja)
Other versions
JPS57133516A (en
Inventor
Toshiaki Wada
Yoshiaki Katsuyama
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.)
Proterial Ltd
Original Assignee
Sumitomo Special Metals 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 Sumitomo Special Metals Co Ltd filed Critical Sumitomo Special Metals Co Ltd
Priority to JP1724881A priority Critical patent/JPS57133516A/ja
Publication of JPS57133516A publication Critical patent/JPS57133516A/ja
Publication of JPH0152809B2 publication Critical patent/JPH0152809B2/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
    • G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
    • G11B5/23—Gap features
    • G11B5/232—Manufacture of gap

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)
JP1724881A 1981-02-06 1981-02-06 Production of magnetic head core Granted JPS57133516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1724881A JPS57133516A (en) 1981-02-06 1981-02-06 Production of magnetic head core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1724881A JPS57133516A (en) 1981-02-06 1981-02-06 Production of magnetic head core

Publications (2)

Publication Number Publication Date
JPS57133516A JPS57133516A (en) 1982-08-18
JPH0152809B2 true JPH0152809B2 (enrdf_load_html_response) 1989-11-10

Family

ID=11938642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1724881A Granted JPS57133516A (en) 1981-02-06 1981-02-06 Production of magnetic head core

Country Status (1)

Country Link
JP (1) JPS57133516A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60239905A (ja) * 1984-05-15 1985-11-28 Hitachi Ltd 磁気ヘツド

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53108409A (en) * 1977-03-03 1978-09-21 Matsushita Electric Ind Co Ltd Magnetic head and preparation thereof

Also Published As

Publication number Publication date
JPS57133516A (en) 1982-08-18

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