DE3786554T2 - Magnetkopf zur senkrechten aufzeichnung/wiedergabe. - Google Patents
Magnetkopf zur senkrechten aufzeichnung/wiedergabe.Info
- Publication number
- DE3786554T2 DE3786554T2 DE87905796T DE3786554T DE3786554T2 DE 3786554 T2 DE3786554 T2 DE 3786554T2 DE 87905796 T DE87905796 T DE 87905796T DE 3786554 T DE3786554 T DE 3786554T DE 3786554 T2 DE3786554 T2 DE 3786554T2
- Authority
- DE
- Germany
- Prior art keywords
- playback
- magnetic head
- vertical recording
- recording
- vertical
- 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
- G11B5/1278—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 (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP61215457A JPH0693288B2 (ja) | 1986-09-11 | 1986-09-11 | 垂直磁気記録再生用ヘツド |
JP30142086A JPH065565B2 (ja) | 1986-12-19 | 1986-12-19 | 垂直磁気記録再生用ヘツド |
JP2045387A JPH0636243B2 (ja) | 1987-02-02 | 1987-02-02 | 垂直磁気記録再生用ヘツド |
Publications (2)
Publication Number | Publication Date |
---|---|
DE3786554D1 DE3786554D1 (de) | 1993-08-19 |
DE3786554T2 true DE3786554T2 (de) | 1993-12-16 |
Family
ID=27283045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE87905796T Expired - Fee Related DE3786554T2 (de) | 1986-09-11 | 1987-09-09 | Magnetkopf zur senkrechten aufzeichnung/wiedergabe. |
Country Status (5)
Country | Link |
---|---|
US (1) | US5014148A (de) |
EP (1) | EP0317633B1 (de) |
KR (1) | KR920008214B1 (de) |
DE (1) | DE3786554T2 (de) |
WO (1) | WO1988002166A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2613906B2 (ja) * | 1987-12-28 | 1997-05-28 | 日本放送協会 | 薄膜磁気ヘッド及びその製造方法 |
CA1323695C (en) * | 1988-12-30 | 1993-10-26 | Shyam Chandra Das | Recording heads with side shields |
US6813115B2 (en) | 2002-04-18 | 2004-11-02 | Seagate Technology Llc | Perpendicular magnetic recording head with improved write field gradient |
JP3799322B2 (ja) * | 2002-11-15 | 2006-07-19 | 株式会社日立グローバルストレージテクノロジーズ | 磁気ディスク装置 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5687220A (en) * | 1979-12-14 | 1981-07-15 | Toshiba Corp | Vertical magnetization type magnetic head |
JPS57205810A (en) * | 1981-06-15 | 1982-12-17 | Matsushita Electric Ind Co Ltd | Vertical magnetization type magnetic head |
DE3149619A1 (de) * | 1981-12-15 | 1983-07-21 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von, als trennmittel fuer forminnenlacke geeigneten, polyisocyanat-additionsprodukten, sowie ihre verwendung als formtrennmittel fuer forminnenlacke bei der herstellung von mit einer lackschicht versehenen formkunststoffen |
JPH0232682B2 (ja) * | 1982-03-04 | 1990-07-23 | Sony Corp | Jikihetsudo |
JPS58166522A (ja) * | 1982-03-26 | 1983-10-01 | Matsushita Electric Ind Co Ltd | 垂直磁化記録用ヘツド |
JPS5940314A (ja) * | 1982-08-30 | 1984-03-06 | Sony Corp | 磁気ヘツド |
JPS59152515A (ja) * | 1983-02-18 | 1984-08-31 | Victor Co Of Japan Ltd | 垂直磁化型磁気ヘツド |
JPS60508A (ja) * | 1983-06-04 | 1985-01-05 | Senyo Kiko Kk | 移動体の屋外自動操舵装置 |
JPS6052908A (ja) * | 1983-09-02 | 1985-03-26 | Matsushita Electric Ind Co Ltd | 垂直磁気記録ヘッド |
JPS6089804A (ja) * | 1983-10-24 | 1985-05-20 | Olympus Optical Co Ltd | 垂直磁気ヘツド |
JPS6151606A (ja) * | 1984-08-20 | 1986-03-14 | Olympus Optical Co Ltd | 垂直磁化型磁気ヘツドおよびその製造方法 |
JPS61284809A (ja) * | 1985-06-10 | 1986-12-15 | Fuji Xerox Co Ltd | 垂直磁気ヘツド |
JPS6214309A (ja) * | 1985-07-11 | 1987-01-22 | Nec Home Electronics Ltd | 垂直磁気ヘツド |
JPH0693287B2 (ja) * | 1986-09-11 | 1994-11-16 | 日本放送協会 | 垂直磁気記録再生用ヘツド |
-
1987
- 1987-09-09 WO PCT/JP1987/000668 patent/WO1988002166A1/ja active IP Right Grant
- 1987-09-09 DE DE87905796T patent/DE3786554T2/de not_active Expired - Fee Related
- 1987-09-09 EP EP87905796A patent/EP0317633B1/de not_active Expired - Lifetime
- 1987-09-09 US US07/329,780 patent/US5014148A/en not_active Expired - Fee Related
- 1987-09-09 KR KR1019880700479A patent/KR920008214B1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP0317633A4 (en) | 1991-05-15 |
DE3786554D1 (de) | 1993-08-19 |
KR880701937A (ko) | 1988-11-07 |
EP0317633B1 (de) | 1993-07-14 |
KR920008214B1 (ko) | 1992-09-25 |
US5014148A (en) | 1991-05-07 |
WO1988002166A1 (en) | 1988-03-24 |
EP0317633A1 (de) | 1989-05-31 |
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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 |