DE3669604D1 - Magnetischer aufzeichnungstraeger. - Google Patents

Magnetischer aufzeichnungstraeger.

Info

Publication number: DE3669604D1
Authority: DE; Germany
Prior art keywords: magnetic recording; recording carrier; carrier; magnetic; recording
Prior art date: 1985-06-17
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

Application number

DE8686107953T

Other languages

English (en)

Inventor

Yuichi Kokaku

Makoto Kitoh

Yoshinori Hagiwara-Sou Honda

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.)

Hitachi Ltd

Original Assignee

Hitachi Ltd

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.)

1985-06-17

Filing date

1986-06-11

Publication date

1990-04-19

1986-06-11 Application filed by Hitachi Ltd filed Critical Hitachi Ltd

1990-04-19 Application granted granted Critical

1990-04-19 Publication of DE3669604D1 publication Critical patent/DE3669604D1/de

2006-06-12 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/72—Protective coatings, e.g. anti-static or antifriction
- G11B5/726—Two or more protective coatings
- G11B5/7262—Inorganic protective coating
- G11B5/7264—Inorganic carbon protective coating, e.g. graphite, diamond like carbon or doped carbon
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S428/00—Stock material or miscellaneous articles
- Y10S428/90—Magnetic feature
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/26—Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
- Y10T428/263—Coating layer not in excess of 5 mils thick or equivalent
- Y10T428/264—Up to 3 mils
- Y10T428/265—1 mil or less
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/30—Self-sustaining carbon mass or layer with impregnant or other layer
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31678—Of metal
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31721—Of polyimide
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

Chemical & Material Sciences (AREA)
Inorganic Chemistry (AREA)
Magnetic Record Carriers (AREA)
Manufacturing Of Magnetic Record Carriers (AREA)
Paints Or Removers (AREA)

DE8686107953T 1985-06-17 1986-06-11 Magnetischer aufzeichnungstraeger. Expired - Lifetime DE3669604D1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP60129820A JPS61289530A (ja)	1985-06-17	1985-06-17	磁気記録媒体

Publications (1)

Publication Number	Publication Date
DE3669604D1 true DE3669604D1 (de)	1990-04-19

Family

ID=15019029

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8686107953T Expired - Lifetime DE3669604D1 (de)	1985-06-17	1986-06-11	Magnetischer aufzeichnungstraeger.

Country Status (4)

Country	Link
US (1)	US4713288A (de)
EP (1)	EP0206115B1 (de)
JP (1)	JPS61289530A (de)
DE (1)	DE3669604D1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4994321A (en) *	1986-01-24	1991-02-19	Fuji Photo Film Co., Ltd.	Perpendicular magnetic recording medium and the method for preparing the same
JP2791015B2 (ja) *	1986-12-24	1998-08-27	株式会社日立製作所	磁気記録媒体
DE3644823A1 (de) *	1986-12-31	1988-07-14	Basf Ag	Magnetische aufzeichnungstraeger
US4778582A (en) *	1987-06-02	1988-10-18	International Business Machines Corporation	Process for making a thin film metal alloy magnetic recording disk with a hydrogenated carbon overcoat
DE3719616A1 (de) *	1987-06-12	1988-12-29	Leybold Ag	Verfahren und vorrichtung zur beschichtung eines substrats
FR2622337B1 (fr) *	1987-10-27	1995-06-16	Thomson Csf	Tete d'enregistrement/lecture video, procede de realisation et appareil mettant en oeuvre ce procede
JPH01245417A (ja) *	1988-03-28	1989-09-29	Matsushita Electric Ind Co Ltd	磁気記録媒体
JPH02178630A (ja) *	1988-12-29	1990-07-11	Sharp Corp	ポリイミド薄膜の製法及びその装置
JPH03130919A (ja) *	1989-07-07	1991-06-04	Matsushita Electric Ind Co Ltd	磁気記録媒体
US5116685A (en) *	1990-02-14	1992-05-26	Memorex Telex, N.V.	Magnetic recording medium comprising a polyester polyurethane polymer and a small percentage of a low molecular weight polyol
JPH06145975A (ja) *	1992-03-20	1994-05-27	Komag Inc	炭素フィルムをスパタリングする方法及びその製造物
JP3008666B2 (ja) *	1992-04-30	2000-02-14	松下電器産業株式会社	金属薄膜型磁気記録媒体の製造方法
US5470447A (en) *	1992-08-19	1995-11-28	Stormedia, Inc.	Method for applying a protective coating on a magnetic recording head
US5563001A (en) *	1992-11-16	1996-10-08	General Motors Corporation	Encapsulated ferromagnetic particles suitable for high temperature use
JPH07161034A (ja) *	1993-04-13	1995-06-23	Matsushita Electric Ind Co Ltd	磁気記録媒体
US5589010A (en) *	1993-04-09	1996-12-31	General Motors Corporation	Annealed polymer-bonded soft magnetic body
US5595609A (en) *	1993-04-09	1997-01-21	General Motors Corporation	Annealed polymer-bonded soft magnetic body
JP4199913B2 (ja) *	2000-09-28	2008-12-24	株式会社日立グローバルストレージテクノロジーズ	磁気記録媒体の製造方法
JP4506953B2 (ja) *	2004-05-28	2010-07-21	日本電気株式会社	共重合高分子膜およびその作製方法
US9858956B2 (en)	2014-07-28	2018-01-02	International Business Machines Corporation	Conductive polymers for use in magnetic media

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4411963A (en) *	1976-10-29	1983-10-25	Aine Harry E	Thin film recording and method of making
JPS54138409A (en) *	1978-04-19	1979-10-26	Tdk Corp	Magnetic recording medium
DE3024918A1 (de) *	1979-07-02	1981-01-22	Fuji Photo Film Co Ltd	Magnetisches aufzeichnungsmaterial und verfahren zu dessen herstellung
DE3068960D1 (en) *	1979-10-01	1984-09-20	Datapoint Corp	Magnetic recording disc and method for forming a protective overcoating thereon
US4503125A (en) *	1979-10-01	1985-03-05	Xebec, Inc.	Protective overcoating for magnetic recording discs and method for forming the same
DE3117931C2 (de) *	1980-05-06	1985-07-25	Nippon Electric Co., Ltd., Tokio/Tokyo	Magnetischer Aufzeichnungsträger und Verfahren zu seiner Herstellung
JPS57164432A (en) *	1981-04-02	1982-10-09	Fuji Photo Film Co Ltd	Magnetic recording medium
JPS5919229A (ja) *	1982-07-22	1984-01-31	Matsushita Electric Ind Co Ltd	磁気記録媒体
JPS59119536A (ja) *	1982-12-27	1984-07-10	Konishiroku Photo Ind Co Ltd	磁気記録媒体およびその製造法
JPS6168725A (ja) *	1984-09-10	1986-04-09	Shin Etsu Chem Co Ltd	磁気記録媒体およびその製造方法

1985
- 1985-06-17 JP JP60129820A patent/JPS61289530A/ja active Pending
1986
- 1986-06-04 US US06/910,141 patent/US4713288A/en not_active Expired - Fee Related
- 1986-06-11 EP EP86107953A patent/EP0206115B1/de not_active Expired - Lifetime
- 1986-06-11 DE DE8686107953T patent/DE3669604D1/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0206115B1 (de)	1990-03-14
EP0206115A2 (de)	1986-12-30
JPS61289530A (ja)	1986-12-19
US4713288A (en)	1987-12-15
EP0206115A3 (en)	1987-05-27

Publication	Publication Date	Title
DE3668391D1 (de)	1990-02-22	Metallischer magnetischer aufzeichnungstraeger.
DE3781712D1 (de)	1992-10-22	Magnetischer aufzeichnungstraeger.
DE3784948D1 (de)	1993-04-29	Magnetischer aufzeichnungstraeger.
DE3888860D1 (de)	1994-05-11	Magnetischer Aufzeichnungsträger.
DE3850833D1 (de)	1994-09-01	Magnetischer Aufzeichnungsträger.
DE3866314D1 (de)	1992-01-02	Magnetooptischer aufzeichnungstraeger.
DE3669604D1 (de)	1990-04-19	Magnetischer aufzeichnungstraeger.
DE3784085D1 (de)	1993-03-25	Magnetischer aufzeichnungstraeger.
DE3650146D1 (de)	1995-01-05	Magnetisches Wiedergabegerät.
DE3675726D1 (de)	1991-01-03	Aufzeichnungstraeger.
DE3677942D1 (de)	1991-04-11	Magnetischer aufzeichnungstraeger mit vertikaler aufzeichnung.
DE3854990D1 (de)	1996-03-21	Magnetischer Aufzeichnungsträger
DE3788972D1 (de)	1994-03-17	Magnetischer Aufzeichnungsträger.
DE3681111D1 (de)	1991-10-02	Nichtabrasives magnetisches aufzeichnungsband.
DE3577490D1 (de)	1990-06-07	Magnetischer aufzeichnungstraeger.
DE3575627D1 (de)	1990-03-01	Magnetischer aufzeichnungstraeger.
DE3683824D1 (de)	1992-03-19	Magnetischer aufzeichnungstraeger.
DE3776688D1 (de)	1992-03-26	Magnetischer aufzeichnungstraeger.
DE3789130D1 (de)	1994-03-31	Magnetischer Aufzeichnungsträger.
DE3681146D1 (de)	1991-10-02	Optisch-magnetischer aufzeichnungstraeger.
DE3676639D1 (de)	1991-02-07	Magnetischer aufzeichnungstraeger.
DE3575034D1 (de)	1990-02-01	Magnetischer aufzeichnungstraeger.
DE3788295D1 (de)	1994-01-13	Magnetischer Aufzeichnungsträger.
DE3778424D1 (de)	1992-05-27	Magnetischer aufzeichnungstraeger.
DE3688971D1 (de)	1993-10-07	Magnetisches Aufnahmegerät.

Legal Events

Date	Code	Title	Description
1991-04-04	8364	No opposition during term of opposition
1995-06-08	8339	Ceased/non-payment of the annual fee