GB1132227A - Magnetic head - Google Patents
Magnetic headInfo
- Publication number
- GB1132227A GB1132227A GB4925865A GB4925865A GB1132227A GB 1132227 A GB1132227 A GB 1132227A GB 4925865 A GB4925865 A GB 4925865A GB 4925865 A GB4925865 A GB 4925865A GB 1132227 A GB1132227 A GB 1132227A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nov
- coil
- ferrite
- tape
- magnetic head
- 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
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
- G11B5/17—Construction or disposition of windings
-
- 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
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/11—Shielding of head against electric or magnetic fields
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
1,132,227. Magnetic recording &c. heads. SONY CORP. 19 Nov., 1965 [21 Nov., 1964 (3)], No. 49258/65. Heading G5R. A ferrite head, intended for video-frequency signals is so proportioned that: (a) the area of the window 4 is h and 9h = 9α##l À # (b) the gap-depth d#l and (c) the cross-sectional area k of the coil 5a is given by 0À4h#k. In all the embodiments described, Fig. 2 (and Figs. 3-7, not shown) there is only one coil 5a facing up-stream relative to the tape movement and a conducting plate 9 on one or both sides of the core members conducts away any electrostatic charges created by tape-friction which otherwise might reach troublesome levels where the ferrite is of high electrical resistance.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6570264 | 1964-11-21 | ||
JP6570064 | 1964-11-21 | ||
JP6570164 | 1964-11-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1132227A true GB1132227A (en) | 1968-10-30 |
Family
ID=27298883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4925865A Expired GB1132227A (en) | 1964-11-21 | 1965-11-19 | Magnetic head |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1474505B2 (en) |
FR (1) | FR1454390A (en) |
GB (1) | GB1132227A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1376546A1 (en) * | 2002-06-21 | 2004-01-02 | O-Mass AS | Head used in combination with wide tape media |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4317149A (en) * | 1980-06-02 | 1982-02-23 | International Business Machines Corporation | Magnetic head having static discharge means |
-
1965
- 1965-11-19 FR FR39166A patent/FR1454390A/en not_active Expired
- 1965-11-19 GB GB4925865A patent/GB1132227A/en not_active Expired
- 1965-11-22 DE DE1965S0100612 patent/DE1474505B2/en not_active Ceased
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1376546A1 (en) * | 2002-06-21 | 2004-01-02 | O-Mass AS | Head used in combination with wide tape media |
Also Published As
Publication number | Publication date |
---|---|
DE1474505A1 (en) | 1969-07-10 |
DE1474505B2 (en) | 1977-04-07 |
FR1454390A (en) | 1966-09-30 |
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