DE69721871D1 - Magnetkopf - Google Patents
MagnetkopfInfo
- Publication number
- DE69721871D1 DE69721871D1 DE69721871T DE69721871T DE69721871D1 DE 69721871 D1 DE69721871 D1 DE 69721871D1 DE 69721871 T DE69721871 T DE 69721871T DE 69721871 T DE69721871 T DE 69721871T DE 69721871 D1 DE69721871 D1 DE 69721871D1
- Authority
- DE
- Germany
- Prior art keywords
- magnetic head
- 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 - Fee Related
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
- G11B5/187—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
-
- 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
- G11B5/1871—Shaping or contouring of the transducing or guiding surface
-
- 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
- G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
- Magnetic Record Carriers (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5799496 | 1996-03-14 | ||
JP5799496 | 1996-03-14 | ||
JP33393296A JP3612906B2 (ja) | 1996-03-14 | 1996-12-13 | 磁気ヘッド |
JP33393296 | 1996-12-13 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69721871D1 true DE69721871D1 (de) | 2003-06-18 |
DE69721871T2 DE69721871T2 (de) | 2004-05-13 |
Family
ID=26399085
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69721871T Expired - Fee Related DE69721871T2 (de) | 1996-03-14 | 1997-03-13 | Magnetkopf |
Country Status (5)
Country | Link |
---|---|
US (1) | US5852536A (de) |
EP (1) | EP0795852B1 (de) |
JP (1) | JP3612906B2 (de) |
KR (1) | KR100454382B1 (de) |
DE (1) | DE69721871T2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1091912A (ja) * | 1996-09-17 | 1998-04-10 | Sony Corp | 磁気ヘッド |
US6125803A (en) | 1997-09-22 | 2000-10-03 | Toyota Jidosha Kabushiki Kaisha | Electromagnetically driven valve for an internal combustion engine |
JP2003288704A (ja) * | 2002-03-28 | 2003-10-10 | Sony Corp | 磁気ヘッドとその製造方法および磁気記録再生装置 |
JP2005085361A (ja) * | 2003-09-09 | 2005-03-31 | Fuji Photo Film Co Ltd | サーボライタ |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55105818A (en) * | 1979-01-31 | 1980-08-13 | Matsushita Electric Ind Co Ltd | Magnetic head |
JPS5760524A (en) * | 1980-09-29 | 1982-04-12 | Hitachi Ltd | Magnetic head with low sliding noise |
JPS6015810A (ja) * | 1983-07-05 | 1985-01-26 | Mitsubishi Electric Corp | 磁気ヘツド |
JPS60107710A (ja) * | 1983-11-15 | 1985-06-13 | Sanyo Electric Co Ltd | 磁気ヘッド |
JPS6196506A (ja) * | 1984-10-17 | 1986-05-15 | Fuji Photo Film Co Ltd | 磁気記録再生装置 |
JPS61129715A (ja) * | 1984-11-29 | 1986-06-17 | Toshiba Corp | フエライトヘツド |
JPS63146202A (ja) * | 1986-12-09 | 1988-06-18 | Canon Electronics Inc | 磁気ヘツド及びその製造方法 |
JPH05128421A (ja) * | 1991-10-31 | 1993-05-25 | Sony Corp | 接合型磁気ヘツド |
JPH05210817A (ja) * | 1992-01-31 | 1993-08-20 | Hitachi Ltd | 複合型磁気ヘッド |
JPH0628613A (ja) * | 1992-07-13 | 1994-02-04 | Matsushita Electric Ind Co Ltd | 複合型磁気ヘッド |
JP2599830Y2 (ja) * | 1992-12-24 | 1999-09-20 | ミツミ電機株式会社 | 磁気ヘッド |
JPH06314408A (ja) * | 1993-04-30 | 1994-11-08 | Sony Corp | 磁気ヘッド |
JP3538930B2 (ja) * | 1994-09-21 | 2004-06-14 | ソニー株式会社 | 磁気ヘッド |
-
1996
- 1996-12-13 JP JP33393296A patent/JP3612906B2/ja not_active Expired - Fee Related
-
1997
- 1997-03-13 DE DE69721871T patent/DE69721871T2/de not_active Expired - Fee Related
- 1997-03-13 EP EP97104310A patent/EP0795852B1/de not_active Expired - Lifetime
- 1997-03-14 KR KR1019970008758A patent/KR100454382B1/ko not_active IP Right Cessation
- 1997-03-14 US US08/818,121 patent/US5852536A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP0795852A2 (de) | 1997-09-17 |
EP0795852B1 (de) | 2003-05-14 |
JPH09305912A (ja) | 1997-11-28 |
EP0795852A3 (de) | 1999-04-07 |
US5852536A (en) | 1998-12-22 |
KR100454382B1 (ko) | 2004-12-31 |
KR970067113A (ko) | 1997-10-13 |
DE69721871T2 (de) | 2004-05-13 |
JP3612906B2 (ja) | 2005-01-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |