JPS6414703A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- JPS6414703A JPS6414703A JP17034087A JP17034087A JPS6414703A JP S6414703 A JPS6414703 A JP S6414703A JP 17034087 A JP17034087 A JP 17034087A JP 17034087 A JP17034087 A JP 17034087A JP S6414703 A JPS6414703 A JP S6414703A
- Authority
- JP
- Japan
- Prior art keywords
- effective track
- track
- core part
- read
- outside
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
PURPOSE:To accurately erase the outside of an effective track and to improve off-track overwrite by arranging a core part wider than an effective track and a core part formed by narrowing both side edges to determine the effective track on a read-write abutting part. CONSTITUTION:The edges 3 of the core part 1 which are wider than the width of the effective track (t) are abutted on the edge 5 of the core part 2 obtained by narrowing the edges 4 on both the sides at an angle alpha to determine the effective track (t) at a fixed interval to form the read-write gap part 8 and the angle alpha is set up to the range of 0 deg.<alpha<90 deg.. Thereby, off-track overwrite can be improved by generating much leakage magnetic field to the outside of the effective track (t). Since the outside of the effective track (t) can be accurately and efficiently erased, physical mismatch between a preceding erase head and a read/write head is not generated and the reading accuracy can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17034087A JPS6414703A (en) | 1987-07-08 | 1987-07-08 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17034087A JPS6414703A (en) | 1987-07-08 | 1987-07-08 | Magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6414703A true JPS6414703A (en) | 1989-01-18 |
Family
ID=15903111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17034087A Pending JPS6414703A (en) | 1987-07-08 | 1987-07-08 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6414703A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203547A (en) * | 1990-11-29 | 1993-04-20 | Canon Kabushiki Kaisha | Vacuum attraction type substrate holding device |
| US5329126A (en) * | 1991-03-22 | 1994-07-12 | Canon Kabuhiki Kaisha | Apparatus and process for vacuum-holding an object |
-
1987
- 1987-07-08 JP JP17034087A patent/JPS6414703A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5203547A (en) * | 1990-11-29 | 1993-04-20 | Canon Kabushiki Kaisha | Vacuum attraction type substrate holding device |
| US5329126A (en) * | 1991-03-22 | 1994-07-12 | Canon Kabuhiki Kaisha | Apparatus and process for vacuum-holding an object |
| US5680428A (en) * | 1991-03-22 | 1997-10-21 | Canon Kabushiki Kaisha | Process for holding an object |
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