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
Application number
DE87905796T
Other languages
English (en)
Other versions
DE3786554D1 (de
Inventor
Junji Nippon Hoso Kyo Numazawa
Yoshiro Nippon Hoso Kyo Yoneda
Fusayoshi Aruga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Sankyo Corp
Japan Broadcasting Corp
Original Assignee
Nidec Sankyo Corp
Nippon Hoso Kyokai NHK
Japan Broadcasting Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP61215457A external-priority patent/JPH0693288B2/ja
Priority claimed from JP30142086A external-priority patent/JPH065565B2/ja
Priority claimed from JP2045387A external-priority patent/JPH0636243B2/ja
Application filed by Nidec Sankyo Corp, Nippon Hoso Kyokai NHK, Japan Broadcasting Corp filed Critical Nidec Sankyo Corp
Application granted granted Critical
Publication of DE3786554D1 publication Critical patent/DE3786554D1/de
Publication of DE3786554T2 publication Critical patent/DE3786554T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
DE87905796T 1986-09-11 1987-09-09 Magnetkopf zur senkrechten aufzeichnung/wiedergabe. Expired - Fee Related DE3786554T2 (de)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
EP0317633A4 (en) 1991-05-15
US5014148A (en) 1991-05-07
KR880701937A (ko) 1988-11-07
KR920008214B1 (ko) 1992-09-25
WO1988002166A1 (en) 1988-03-24
DE3786554D1 (de) 1993-08-19
EP0317633B1 (de) 1993-07-14
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