DE68914741D1 - Magnetkopf und Herstellungsverfahren. - Google Patents
Magnetkopf und Herstellungsverfahren.Info
- Publication number
- DE68914741D1 DE68914741D1 DE68914741T DE68914741T DE68914741D1 DE 68914741 D1 DE68914741 D1 DE 68914741D1 DE 68914741 T DE68914741 T DE 68914741T DE 68914741 T DE68914741 T DE 68914741T DE 68914741 D1 DE68914741 D1 DE 68914741D1
- Authority
- DE
- Germany
- Prior art keywords
- manufacturing process
- magnetic head
- magnetic
- head
- manufacturing
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63185971A JPH0235609A (ja) | 1988-07-26 | 1988-07-26 | 磁気ヘッドおよびその製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68914741D1 true DE68914741D1 (de) | 1994-05-26 |
DE68914741T2 DE68914741T2 (de) | 1994-08-18 |
Family
ID=16180082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68914741T Expired - Fee Related DE68914741T2 (de) | 1988-07-26 | 1989-06-08 | Magnetkopf und Herstellungsverfahren. |
Country Status (4)
Country | Link |
---|---|
US (1) | US4985796A (de) |
EP (1) | EP0352889B1 (de) |
JP (1) | JPH0235609A (de) |
DE (1) | DE68914741T2 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03259407A (ja) * | 1990-02-07 | 1991-11-19 | Mitsubishi Electric Corp | 複合型磁気ヘッド |
JPH0430308A (ja) * | 1990-05-25 | 1992-02-03 | Hitachi Ltd | 磁気ヘッドおよびその製造方法 |
US5220473A (en) * | 1991-05-08 | 1993-06-15 | Eastman Kodak Company | Multitrack magnetic head assembly having a tape-engaging surface contoured for continuous in-contact recording |
JPH05325135A (ja) * | 1992-05-25 | 1993-12-10 | Matsushita Electric Ind Co Ltd | 薄膜型磁気ヘッド |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5542380A (en) * | 1978-09-20 | 1980-03-25 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic head |
JPS60224109A (ja) * | 1984-04-20 | 1985-11-08 | Hitachi Ltd | 複合型磁気ヘツドを用いた磁気記録再生装置 |
KR910000790B1 (ko) * | 1985-04-30 | 1991-02-08 | 마쯔시다덴기산교 가부시기가이샤 | 자기헤드 및 그 제조방법 |
JPH0640370B2 (ja) * | 1985-08-06 | 1994-05-25 | 松下電器産業株式会社 | 磁気ヘツドの製造法 |
JPH0664696B2 (ja) * | 1985-10-04 | 1994-08-22 | 松下電器産業株式会社 | 磁気ヘツドおよびその製造方法 |
DE3689534T2 (de) * | 1985-10-14 | 1994-05-05 | Hitachi Ltd | Dünnschichtmagnetkopf. |
JPS62267912A (ja) * | 1986-05-15 | 1987-11-20 | Victor Co Of Japan Ltd | 磁気ヘツド |
JPS62271213A (ja) * | 1986-05-20 | 1987-11-25 | Victor Co Of Japan Ltd | 複合型磁気ヘツドの製造方法 |
JPS63806A (ja) * | 1986-06-20 | 1988-01-05 | Nec Home Electronics Ltd | 複合型磁気ヘツド及びその製造方法 |
-
1988
- 1988-07-26 JP JP63185971A patent/JPH0235609A/ja active Pending
-
1989
- 1989-05-31 US US07/359,312 patent/US4985796A/en not_active Expired - Fee Related
- 1989-06-08 DE DE68914741T patent/DE68914741T2/de not_active Expired - Fee Related
- 1989-06-08 EP EP89305798A patent/EP0352889B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4985796A (en) | 1991-01-15 |
DE68914741T2 (de) | 1994-08-18 |
JPH0235609A (ja) | 1990-02-06 |
EP0352889B1 (de) | 1994-04-20 |
EP0352889A2 (de) | 1990-01-31 |
EP0352889A3 (en) | 1990-12-05 |
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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 |