FR2538594B1 - Perfectionnements aux supports d'enregistrement magnetiques - Google Patents

Perfectionnements aux supports d'enregistrement magnetiques

Info

Publication number: FR2538594B1
Authority: FR; France
Prior art keywords: magnetic recording; recording media; media; magnetic; recording
Prior art date: 1982-12-25
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

Application number

FR8320646A

Other languages

English (en)

Other versions

FR2538594A1 (fr

Inventor

Osamu Kohmoto

Yasufumi Takasugi

Hiroshi Sugihara

Masaharu Nishimatsu

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.)

TDK Corp

Original Assignee

TDK 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.)

1982-12-25

Filing date

1983-12-23

Publication date

1987-01-23

1983-12-23 Application filed by TDK Corp filed Critical TDK Corp

1984-06-29 Publication of FR2538594A1 publication Critical patent/FR2538594A1/fr

1987-01-23 Application granted granted Critical

1987-01-23 Publication of FR2538594B1 publication Critical patent/FR2538594B1/fr

Status Expired 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
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
- 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
- Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
- Y10T428/24942—Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
- Y10T428/2495—Thickness [relative or absolute]
- Y10T428/24967—Absolute thicknesses specified
- Y10T428/24975—No layer or component greater than 5 mils thick
- 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

FR8320646A 1982-12-25 1983-12-23 Perfectionnements aux supports d'enregistrement magnetiques Expired FR2538594B1 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
JP57234817A JPS59119538A (ja)	1982-12-25	1982-12-25	磁気記録媒体

Publications (2)

Publication Number	Publication Date
FR2538594A1 FR2538594A1 (fr)	1984-06-29
FR2538594B1 true FR2538594B1 (fr)	1987-01-23

Family

ID=16976844

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR8320646A Expired FR2538594B1 (fr)	1982-12-25	1983-12-23	Perfectionnements aux supports d'enregistrement magnetiques

Country Status (6)

Country	Link
US (1)	US4592948A (fr)
JP (1)	JPS59119538A (fr)
DE (1)	DE3346770C2 (fr)
FR (1)	FR2538594B1 (fr)
GB (1)	GB2133315B (fr)
NL (1)	NL189219C (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS60138720A (ja) *	1983-12-27	1985-07-23	Sharp Corp	垂直磁気記録媒体
US5013583A (en) *	1984-02-11	1991-05-07	Teijin Limited	Method of producing a magnetic recording medium
CA1235808A (fr) *	1984-03-22	1988-04-26	Tetsuo Oka	Support d'enregistrement magnetique vertical et methode de fabrication de ce support
JPH0762892B2 (ja) *	1984-06-08	1995-07-05	ティーディーケイ株式会社	画像記録用磁気記録媒体
KR890004257B1 (ko) *	1984-10-29	1989-10-28	니뽕 빅터 가부시끼가이샤	자기 기록매체 및 그 제조법
JPH0610871B2 (ja) *	1984-12-25	1994-02-09	ティーディーケイ株式会社	磁気記録媒体
DE3546325C2 (de) *	1985-01-17	1994-06-01	Hitachi Metals Ltd	Magnetisches Aufzeichnungsmedium
JPH0724104B2 (ja) *	1985-03-20	1995-03-15	日立マクセル株式会社	磁気記録媒体
JPH0777018B2 (ja) *	1985-05-27	1995-08-16	住友金属鉱山株式会社	磁気記録媒体
US4769282A (en) *	1985-06-21	1988-09-06	Sumitomo Metal Mining Co., Ltd.	Magnetic recording medium
US4677032A (en) *	1985-09-23	1987-06-30	International Business Machines Corporation	Vertical magnetic recording media with multilayered magnetic film structure
JPS6289220A (ja) *	1985-10-15	1987-04-23	Hitachi Maxell Ltd	磁気記録媒体
JP2523279B2 (ja) *	1986-05-02	1996-08-07	ティーディーケイ株式会社	磁気記録媒体およびその製造方法
EP0513418B1 (fr) *	1991-05-16	1995-04-19	Sony Corporation	Milieu d'enregistrement magnétique
JPH071537B2 (ja) *	1991-09-24	1995-01-11	インターナショナル・ビジネス・マシーンズ・コーポレイション	磁気記録ディスク、基板及びその製造方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5939812B2 (ja) *	1980-09-29	1984-09-26	日本ビクター株式会社	磁気記録媒体
JPS57135441A (en) *	1981-02-13	1982-08-21	Sony Corp	Magnetic recording medium
GB2096920B (en) *	1981-02-19	1984-06-06	Fuji Photo Film Co Ltd	Metallic magnetic medium and process for its production
JPS5829119A (ja) *	1981-08-14	1983-02-21	Shin Etsu Chem Co Ltd	帯電防止性磁気テ−プ
DE3278980D1 (en) *	1982-04-30	1988-10-06	Matsushita Electric Ind Co Ltd	Magnetic recording medium

1982
- 1982-12-25 JP JP57234817A patent/JPS59119538A/ja active Pending
1983
- 1983-12-20 US US06/563,512 patent/US4592948A/en not_active Expired - Fee Related
- 1983-12-22 GB GB08334186A patent/GB2133315B/en not_active Expired
- 1983-12-23 FR FR8320646A patent/FR2538594B1/fr not_active Expired
- 1983-12-23 DE DE3346770A patent/DE3346770C2/de not_active Expired
- 1983-12-23 NL NLAANVRAGE8304424,A patent/NL189219C/xx not_active IP Right Cessation

Also Published As

Publication number	Publication date
GB2133315A (en)	1984-07-25
NL189219C (nl)	1993-02-01
FR2538594A1 (fr)	1984-06-29
DE3346770C2 (de)	1987-02-19
DE3346770A1 (de)	1984-07-05
GB8334186D0 (en)	1984-02-01
NL8304424A (nl)	1984-07-16
GB2133315B (en)	1986-02-26
US4592948A (en)	1986-06-03
NL189219B (nl)	1992-09-01
JPS59119538A (ja)	1984-07-10

Publication	Publication Date	Title
GB2101911B (en)	1984-08-01	Magnetic recording media
DE3278980D1 (en)	1988-10-06	Magnetic recording medium
DE3370711D1 (en)	1987-05-07	Magnetic recording medium
DE3379082D1 (en)	1989-03-02	Magnetic recording medium
DE3172556D1 (en)	1985-11-07	Magnetic recording media
DE3375616D1 (en)	1988-03-10	Magnetic recording medium
DE3377755D1 (en)	1988-09-22	Magnetic recording media
FR2532074B1 (fr)	1986-12-26	Support d'enregistrement
DE3371260D1 (en)	1987-06-04	Magnetic recording medium
DE3380753D1 (en)	1989-11-23	Magnetic recording medium
GB2142043B (en)	1986-12-10	Magnetic recording media
DE3277147D1 (en)	1987-10-08	Magnetic recording media
DE3379613D1 (en)	1989-05-18	Magnetic head for perpendicular recording media
DE3480239D1 (en)	1989-11-23	Magnetic recording media
DE3370710D1 (en)	1987-05-07	Magnetic recording medium
GB2096647B (en)	1985-07-17	Magnetic recording media
FR2533345B1 (fr)	1986-03-21	Disque d'enregistrement d'information
GB2131594B (en)	1986-06-11	Information recording media
FR2517099B1 (fr)	1986-04-04	Support d'enregistrement magnetique
FR2538594B1 (fr)	1987-01-23	Perfectionnements aux supports d'enregistrement magnetiques
DE3378237D1 (en)	1988-11-17	Magnetic recording medium
GB2069874B (en)	1983-10-19	Magnetic recording media
DE3379923D1 (en)	1989-06-29	Magnetic recording medium
KR840006710A (ko)	1984-12-01	자기기록 재생장치
DE3373584D1 (en)	1987-10-15	Magnetic recording medium

Legal Events

Date	Code	Title	Description
1994-10-28	ST	Notification of lapse