JPS5362516A - Multipolar magnetism erasing head and its manufacture - Google Patents
Multipolar magnetism erasing head and its manufactureInfo
- Publication number
- JPS5362516A JPS5362516A JP13688876A JP13688876A JPS5362516A JP S5362516 A JPS5362516 A JP S5362516A JP 13688876 A JP13688876 A JP 13688876A JP 13688876 A JP13688876 A JP 13688876A JP S5362516 A JPS5362516 A JP S5362516A
- Authority
- JP
- Japan
- Prior art keywords
- multipolar
- magnetism
- manufacture
- erasing head
- erasing
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- 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
- G11B5/325—Erasing heads using permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13688876A JPS5362516A (en) | 1976-11-16 | 1976-11-16 | Multipolar magnetism erasing head and its manufacture |
GB3737477A GB1575680A (en) | 1976-11-16 | 1977-09-07 | Tape recording apparatus including a multipolar erasing head and a manufacturing method for a multipolar erasing head |
US05/831,253 US4146956A (en) | 1976-04-09 | 1977-09-07 | Method for manufacturing a multipolar erasing head |
DE19772740563 DE2740563C2 (de) | 1976-11-16 | 1977-09-08 | Mehrpoliger permanentmagnetischer Löschkopf sowie Verfahren und Vorrichtung zu seiner Magnetisierung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13688876A JPS5362516A (en) | 1976-11-16 | 1976-11-16 | Multipolar magnetism erasing head and its manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5362516A true JPS5362516A (en) | 1978-06-05 |
JPS579123B2 JPS579123B2 (ja) | 1982-02-19 |
Family
ID=15185885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13688876A Granted JPS5362516A (en) | 1976-04-09 | 1976-11-16 | Multipolar magnetism erasing head and its manufacture |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5362516A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11690750B2 (en) | 2016-11-09 | 2023-07-04 | Djo, Llc | Orthopedic walking boot having a mechanically adjustable ramp insert |
-
1976
- 1976-11-16 JP JP13688876A patent/JPS5362516A/ja active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11690750B2 (en) | 2016-11-09 | 2023-07-04 | Djo, Llc | Orthopedic walking boot having a mechanically adjustable ramp insert |
Also Published As
Publication number | Publication date |
---|---|
JPS579123B2 (ja) | 1982-02-19 |
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