JPS5623A - Magnetic head and its manufacture - Google Patents
Magnetic head and its manufactureInfo
- 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
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
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)
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)
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 |
-
1979
- 1979-06-15 JP JP7462179A patent/JPS5623A/en active Granted
Patent Citations (3)
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)
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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