JPS5718015A - Production of magnetic head chip - Google Patents

Production of magnetic head chip

Info

Publication number
JPS5718015A
JPS5718015A JP9274480A JP9274480A JPS5718015A JP S5718015 A JPS5718015 A JP S5718015A JP 9274480 A JP9274480 A JP 9274480A JP 9274480 A JP9274480 A JP 9274480A JP S5718015 A JPS5718015 A JP S5718015A
Authority
JP
Japan
Prior art keywords
track width
grooves
working
cut
groove
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
JP9274480A
Other languages
Japanese (ja)
Inventor
Kaoru Sakamoto
Shigeki Yamamura
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 JP9274480A priority Critical patent/JPS5718015A/en
Publication of JPS5718015A publication Critical patent/JPS5718015A/en
Pending 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
    • G11B5/1871—Shaping or contouring of the transducing or guiding surface

Landscapes

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

Abstract

PURPOSE:To increase both the working precision and the productivity and at the same time suppress the crosstalk, by carrying out just a groove working to obtain the track width. CONSTITUTION:The grooves 13a and 13b are formed on the working gap forming surfaces 1 and 3 of core blocks 2 and 5 to decide the track width. These grooves are cut from the lengthwise upper edges of the surfaces 1 and 3 and with use of an edged tool having the blade thickness A whose tip is formed like a sawtooth in a single direction and with the depth D so as to obtain the linearity of the track width. Then the edged tool is fed by an extent equivalent to the track width to obtain a prescribed track width, and then the grooves 13a and 13b are cut again with depth D. This working is successively repeated. The core blocks 2 and 5 are butted to each other to make the grooves 13a and 13b opposite to each other, and then glass bonding is given to obtain a prescribes core thickness t with every pitch P. For this purpose, the groove part filled up with the glass 8 is cut successively with the cut groove H having a width of angle theta in the right-angled direction to the working gap. Thus the head chips are produced.
JP9274480A 1980-07-09 1980-07-09 Production of magnetic head chip Pending JPS5718015A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9274480A JPS5718015A (en) 1980-07-09 1980-07-09 Production of magnetic head chip

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9274480A JPS5718015A (en) 1980-07-09 1980-07-09 Production of magnetic head chip

Publications (1)

Publication Number Publication Date
JPS5718015A true JPS5718015A (en) 1982-01-29

Family

ID=14062917

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9274480A Pending JPS5718015A (en) 1980-07-09 1980-07-09 Production of magnetic head chip

Country Status (1)

Country Link
JP (1) JPS5718015A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62189608A (en) * 1986-02-14 1987-08-19 Alps Electric Co Ltd Production of magnetic head
JPS62288794A (en) * 1987-05-15 1987-12-15 株式会社クボタ Collecting pipe for drainage
US4731017A (en) * 1984-11-01 1988-03-15 Mitsubishi Petrochemical Engineering Co. Ltd. Radiation heating apparatus
JPS63122005A (en) * 1986-11-12 1988-05-26 Ngk Insulators Ltd Magnetic head core and its manufacture
JPH06206238A (en) * 1993-01-12 1994-07-26 Sodick Co Ltd Injection molding machine
EP0725387A2 (en) * 1991-04-19 1996-08-07 Sony Corporation Magnetic head producing method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731017A (en) * 1984-11-01 1988-03-15 Mitsubishi Petrochemical Engineering Co. Ltd. Radiation heating apparatus
JPS62189608A (en) * 1986-02-14 1987-08-19 Alps Electric Co Ltd Production of magnetic head
JPS63122005A (en) * 1986-11-12 1988-05-26 Ngk Insulators Ltd Magnetic head core and its manufacture
JPS62288794A (en) * 1987-05-15 1987-12-15 株式会社クボタ Collecting pipe for drainage
JPH0587719B2 (en) * 1987-05-15 1993-12-17 Kubota Kk
EP0725387A2 (en) * 1991-04-19 1996-08-07 Sony Corporation Magnetic head producing method
EP0725387A3 (en) * 1991-04-19 1996-08-14 Sony Corporation Magnetic head producing method
US6014291A (en) * 1991-04-19 2000-01-11 Sony Corporation Composite magnetic head having thin conductor film
JPH06206238A (en) * 1993-01-12 1994-07-26 Sodick Co Ltd Injection molding machine

Similar Documents

Publication Publication Date Title
JPS5718015A (en) Production of magnetic head chip
JPS5764323A (en) Magnetic head and its manufacture
JPS5497008A (en) Floating type magnetic head
JPS5676357A (en) Cutting method of chip
JPS57141012A (en) Magnetic head with azimuth gap
SU434456A1 (en) METHOD OF MANUFACTURING A BLOCK OF FERRITICAL MAGNETIC HEADS
JPS56119914A (en) Production of magnetic head
SU1185383A1 (en) Method of manufacturing multitrack ferrite heads
JPS6446207A (en) Production of magnetic head
JPS5512559A (en) Manufacture for magnetic head
SU1219357A1 (en) Method of producing glued components of l- and u-shaped cross sections
JPS57200924A (en) Manufacture of magnetic head core
JPS5514548A (en) Magnetic head and its manufacture
JPS5368499A (en) Method of shaping laser beam used for machining
JPS54103333A (en) Production of magnetic head
JPS5284720A (en) Production of magnetic head
JPS5729461A (en) Manufacture of plural needle electrodes for electrostatic recording head
JPS5746646A (en) Manufacture of commutator segment
PT80883B (en) METHOD FOR THE PREPARATION OF 1,3-DIHYDRO-4-PYRIDOYL-2H-IMIDAZOLE-2-ONES
JPS52136494A (en) Process for grooving brittle material
JPS5715439A (en) Dicing method
JPS578059A (en) Cutting method for block body
JPS57212616A (en) Manufacture of magnetic head
JPS56117318A (en) Manufacture of magnetic head
JPS53120413A (en) Production of core of narrowed track