JPH048844B2 - - Google Patents
Info
- Publication number
- JPH048844B2 JPH048844B2 JP58195347A JP19534783A JPH048844B2 JP H048844 B2 JPH048844 B2 JP H048844B2 JP 58195347 A JP58195347 A JP 58195347A JP 19534783 A JP19534783 A JP 19534783A JP H048844 B2 JPH048844 B2 JP H048844B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- recording
- medium
- magnetic head
- substance
- 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 - Lifetime
Links
- 230000004907 flux Effects 0.000 claims description 40
- 239000000463 material Substances 0.000 claims description 27
- 239000000696 magnetic material Substances 0.000 claims description 12
- 229910000859 α-Fe Inorganic materials 0.000 claims description 12
- 239000002223 garnet Substances 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910000531 Co alloy Inorganic materials 0.000 claims 1
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 claims 1
- KCZFLPPCFOHPNI-UHFFFAOYSA-N alumane;iron Chemical compound [AlH3].[Fe] KCZFLPPCFOHPNI-UHFFFAOYSA-N 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 48
- 230000000052 comparative effect Effects 0.000 description 23
- 230000000694 effects Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- VZSRBBMJRBPUNF-UHFFFAOYSA-N 2-(2,3-dihydro-1H-inden-2-ylamino)-N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]pyrimidine-5-carboxamide Chemical compound C1C(CC2=CC=CC=C12)NC1=NC=C(C=N1)C(=O)NCCC(N1CC2=C(CC1)NN=N2)=O VZSRBBMJRBPUNF-UHFFFAOYSA-N 0.000 description 7
- 230000005415 magnetization Effects 0.000 description 7
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 4
- YLZOPXRUQYQQID-UHFFFAOYSA-N 3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]propan-1-one Chemical compound N1N=NC=2CN(CCC=21)CCC(=O)N1CCN(CC1)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F YLZOPXRUQYQQID-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- 229910002796 Si–Al Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000889 permalloy Inorganic materials 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
- 239000002356 single layer Substances 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
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/1875—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers
- G11B5/1877—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film
- G11B5/1878—"Composite" pole pieces, i.e. poles composed in some parts of magnetic particles and in some other parts of magnetic metal layers including at least one magnetic thin film disposed immediately adjacent to the transducing gap, e.g. "Metal-In-Gap" structure
-
- 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
-
- 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
- G11B5/245—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track
- G11B5/2452—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features comprising means for controlling the reluctance of the magnetic circuit in a head with single gap, for co-operation with one track where the dimensions of the effective gap are controlled
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19534783A JPS6087411A (ja) | 1983-10-20 | 1983-10-20 | 磁気ヘッド |
| US06/653,094 US4646184A (en) | 1983-09-21 | 1984-09-21 | Magnetic head for recording and reproduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19534783A JPS6087411A (ja) | 1983-10-20 | 1983-10-20 | 磁気ヘッド |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6087411A JPS6087411A (ja) | 1985-05-17 |
| JPH048844B2 true JPH048844B2 (ko) | 1992-02-18 |
Family
ID=16339653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19534783A Granted JPS6087411A (ja) | 1983-09-21 | 1983-10-20 | 磁気ヘッド |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6087411A (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2553494B2 (ja) * | 1985-05-09 | 1996-11-13 | 日立マクセル株式会社 | 磁気ヘッド |
| JPS6257110A (ja) * | 1985-09-04 | 1987-03-12 | Matsushita Electric Ind Co Ltd | 磁気ヘツド及び磁気記録方法 |
| JPS62185212A (ja) * | 1986-02-10 | 1987-08-13 | Matsushita Electric Ind Co Ltd | 磁気記録ヘツド |
| JP2600841B2 (ja) * | 1988-09-02 | 1997-04-16 | 三菱電機株式会社 | 磁気ヘッド |
| JPH02105309A (ja) * | 1988-10-13 | 1990-04-17 | Mitsubishi Electric Corp | 薄膜磁気ヘッド |
| US5729413A (en) * | 1995-12-20 | 1998-03-17 | Ampex Corporation | Two-gap magnetic read/write head |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49117011A (ko) * | 1973-03-10 | 1974-11-08 | ||
| JPS5619A (en) * | 1979-06-11 | 1981-01-06 | Canon Inc | Magnetic head |
| JPS59227015A (ja) * | 1983-06-08 | 1984-12-20 | Anelva Corp | 垂直磁化磁気ヘツド |
-
1983
- 1983-10-20 JP JP19534783A patent/JPS6087411A/ja active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49117011A (ko) * | 1973-03-10 | 1974-11-08 | ||
| JPS5619A (en) * | 1979-06-11 | 1981-01-06 | Canon Inc | Magnetic head |
| JPS59227015A (ja) * | 1983-06-08 | 1984-12-20 | Anelva Corp | 垂直磁化磁気ヘツド |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6087411A (ja) | 1985-05-17 |
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