JPH0156448B2 - - Google Patents
Info
- Publication number
- JPH0156448B2 JPH0156448B2 JP56013047A JP1304781A JPH0156448B2 JP H0156448 B2 JPH0156448 B2 JP H0156448B2 JP 56013047 A JP56013047 A JP 56013047A JP 1304781 A JP1304781 A JP 1304781A JP H0156448 B2 JPH0156448 B2 JP H0156448B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic head
- expansion
- pole piece
- ferromagnetic
- 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
- 230000005291 magnetic effect Effects 0.000 claims description 37
- 239000003302 ferromagnetic material Substances 0.000 claims description 17
- 229910010293 ceramic material Inorganic materials 0.000 claims description 15
- 150000001875 compounds Chemical class 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 239000000945 filler Substances 0.000 claims 2
- 239000000463 material Substances 0.000 description 13
- 229910000859 α-Fe Inorganic materials 0.000 description 9
- 239000011810 insulating material Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
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
- G11B5/133—Structure or manufacture of heads, e.g. inductive with cores composed of particles, e.g. with dust cores, with ferrite cores with cores composed of isolated magnetic particles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Soft Magnetic Materials (AREA)
- Compositions Of Oxide Ceramics (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56013047A JPS57127909A (en) | 1981-02-02 | 1981-02-02 | Magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56013047A JPS57127909A (en) | 1981-02-02 | 1981-02-02 | Magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57127909A JPS57127909A (en) | 1982-08-09 |
| JPH0156448B2 true JPH0156448B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1989-11-30 |
Family
ID=11822199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56013047A Granted JPS57127909A (en) | 1981-02-02 | 1981-02-02 | Magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57127909A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
-
1981
- 1981-02-02 JP JP56013047A patent/JPS57127909A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57127909A (en) | 1982-08-09 |
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