CA1179771A - Perpendicular mode magnetic transducer head - Google Patents
Perpendicular mode magnetic transducer headInfo
- Publication number
- CA1179771A CA1179771A CA000399018A CA399018A CA1179771A CA 1179771 A CA1179771 A CA 1179771A CA 000399018 A CA000399018 A CA 000399018A CA 399018 A CA399018 A CA 399018A CA 1179771 A CA1179771 A CA 1179771A
- Authority
- CA
- Canada
- Prior art keywords
- magnetic
- coil
- auxiliary
- main
- magnetic pole
- 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 title claims abstract description 251
- 239000000696 magnetic material Substances 0.000 claims abstract description 32
- 239000010409 thin film Substances 0.000 claims abstract description 25
- 230000007423 decrease Effects 0.000 claims description 6
- 230000005415 magnetization Effects 0.000 description 15
- 239000000463 material Substances 0.000 description 9
- 238000004804 winding Methods 0.000 description 9
- 229910000859 α-Fe Inorganic materials 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000035699 permeability Effects 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 230000004907 flux Effects 0.000 description 4
- 229910000889 permalloy Inorganic materials 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- 229910052681 coesite Inorganic materials 0.000 description 3
- 229910052906 cristobalite Inorganic materials 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 3
- 229910000702 sendust Inorganic materials 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 235000012239 silicon dioxide Nutrition 0.000 description 3
- 229910052682 stishovite Inorganic materials 0.000 description 3
- 229910052905 tridymite Inorganic materials 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- -1 AQ2O3 Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000599 Cr alloy Inorganic materials 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000206 photolithography Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 235000019353 potassium silicate Nutrition 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 238000004544 sputter deposition 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
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4674681A JPS57162114A (en) | 1981-03-30 | 1981-03-30 | Magnetic head |
| JP46746/81 | 1981-03-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1179771A true CA1179771A (en) | 1984-12-18 |
Family
ID=12755893
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000399018A Expired CA1179771A (en) | 1981-03-30 | 1982-03-22 | Perpendicular mode magnetic transducer head |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS57162114A (enrdf_load_stackoverflow) |
| CA (1) | CA1179771A (enrdf_load_stackoverflow) |
| DE (1) | DE3211581A1 (enrdf_load_stackoverflow) |
| FR (1) | FR2502824B1 (enrdf_load_stackoverflow) |
| GB (1) | GB2095888B (enrdf_load_stackoverflow) |
| NL (1) | NL8201231A (enrdf_load_stackoverflow) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59157819A (ja) * | 1983-02-25 | 1984-09-07 | Sony Corp | 垂直磁気記録用ヘツド |
| WO1984003788A1 (en) * | 1983-03-22 | 1984-09-27 | Sony Corp | Single magnetic pole type of composite magnetic head for perpendicular recording |
| JPH07101483B2 (ja) * | 1983-08-29 | 1995-11-01 | ソニー株式会社 | 薄膜型磁気ヘッド |
| US4672494A (en) * | 1983-09-01 | 1987-06-09 | Matsushita Electric Industrial Co., Ltd. | Magnetic head for effecting perpendicular magnetic recording |
| JPS60197914A (ja) * | 1984-03-20 | 1985-10-07 | Olympus Optical Co Ltd | 垂直磁化型磁気ヘツド |
| JPS6134710A (ja) * | 1984-07-26 | 1986-02-19 | Akai Electric Co Ltd | 磁気ヘツド |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5810764B2 (ja) * | 1977-09-30 | 1983-02-28 | 岩崎 俊一 | 磁気記録再生装置 |
| JPS5584015U (enrdf_load_stackoverflow) * | 1978-12-07 | 1980-06-10 | ||
| JPS56165918A (en) * | 1980-05-23 | 1981-12-19 | Ricoh Co Ltd | Vertical magnetic recorder and reproducer |
-
1981
- 1981-03-30 JP JP4674681A patent/JPS57162114A/ja active Granted
-
1982
- 1982-03-22 CA CA000399018A patent/CA1179771A/en not_active Expired
- 1982-03-24 NL NL8201231A patent/NL8201231A/nl not_active Application Discontinuation
- 1982-03-29 GB GB8209188A patent/GB2095888B/en not_active Expired
- 1982-03-29 FR FR8205338A patent/FR2502824B1/fr not_active Expired
- 1982-03-29 DE DE19823211581 patent/DE3211581A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| GB2095888B (en) | 1984-09-26 |
| JPH0157405B2 (enrdf_load_stackoverflow) | 1989-12-05 |
| GB2095888A (en) | 1982-10-06 |
| NL8201231A (nl) | 1982-10-18 |
| FR2502824B1 (fr) | 1985-01-04 |
| JPS57162114A (en) | 1982-10-05 |
| FR2502824A1 (fr) | 1982-10-01 |
| DE3211581A1 (de) | 1982-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEC | Expiry (correction) | ||
| MKEX | Expiry |