DE3681111D1 - Nichtabrasives magnetisches aufzeichnungsband. - Google Patents

Nichtabrasives magnetisches aufzeichnungsband.

Info

Publication number: DE3681111D1
Authority: DE; Germany
Prior art keywords: magnetic recording; recording tape; abrasive magnetic; abrasive; tape
Prior art date: 1985-10-11
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

DE8686307874T

Other languages

English (en)

Inventor

Karen M Minnesota Mini Woolley

Chong-Yong J Minnesota Min Kim

Arthur J Minnesota M Ellsworth

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.)

3M Co

Original Assignee

Minnesota Mining and Manufacturing Co

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.)

1985-10-11

Filing date

1986-10-10

Publication date

1991-10-02

1986-10-10 Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co

1991-10-02 Application granted granted Critical

1991-10-02 Publication of DE3681111D1 publication Critical patent/DE3681111D1/de

2006-10-11 Anticipated expiration legal-status Critical

Status 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
- G11B5/62—Record carriers characterised by the selection of the material
- G11B5/68—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent
- G11B5/70—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer
- G11B5/708—Record carriers characterised by the selection of the material comprising one or more layers of magnetisable material homogeneously mixed with a bonding agent on a base layer characterised by addition of non-magnetic particles to the 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
- 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
- Y10T428/24983—Hardness
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/256—Heavy metal or aluminum or compound thereof
- Y10T428/257—Iron oxide or aluminum oxide
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/258—Alkali metal or alkaline earth metal or compound thereof
- 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
- Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
- Y10T428/259—Silicic material
- 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
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

DE8686307874T 1985-10-11 1986-10-10 Nichtabrasives magnetisches aufzeichnungsband. Expired - Fee Related DE3681111D1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US06/786,735 US4778714A (en)	1985-10-11	1985-10-11	Nonabrasive magnetic recording tape

Publications (1)

Publication Number	Publication Date
DE3681111D1 true DE3681111D1 (de)	1991-10-02

Family

ID=25139448

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE8686307874T Expired - Fee Related DE3681111D1 (de)	1985-10-11	1986-10-10	Nichtabrasives magnetisches aufzeichnungsband.

Country Status (6)

Country	Link
US (1)	US4778714A (de)
EP (1)	EP0219330B1 (de)
JP (1)	JPS6289225A (de)
BR (1)	BR8603966A (de)
CA (1)	CA1290199C (de)
DE (1)	DE3681111D1 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH07102505B2 (ja) *	1988-04-13	1995-11-08	富士写真フイルム株式会社	研磨テープ
KR900002242A (ko) *	1988-07-14	1990-02-28	나가이 아쯔시	자기디스크 카트리지
DE3840848A1 (de) *	1988-12-03	1990-06-07	Draegerwerk Ag	Werkstoff mit vorgebbarer magnetischer suszeptibilitaet
DE69023351T2 (de) *	1989-01-11	1996-04-04	Toray Industries	Biaxial orientierter Polyesterfilm.
US5284699A (en) *	1989-01-11	1994-02-08	Toray Industries, Inc.	Biaxially oriented polyester film
JPH06274839A (ja) *	1993-03-23	1994-09-30	Minnesota Mining & Mfg Co <3M>	ビデオカセットレコーダ要素クリーニングカセット
US6548160B2 (en) *	1999-12-01	2003-04-15	Fuji Photo Film Co., Ltd.	Magnetic recording media
US6506972B1 (en) *	2002-01-22	2003-01-14	Nanoset, Llc	Magnetically shielded conductor
US20040225213A1 (en)	2002-01-22	2004-11-11	Xingwu Wang	Magnetic resonance imaging coated assembly
US7162302B2 (en)	2002-03-04	2007-01-09	Nanoset Llc	Magnetically shielded assembly
US6846985B2 (en)	2002-01-22	2005-01-25	Nanoset, Llc	Magnetically shielded assembly
US20050247472A1 (en) *	2002-01-22	2005-11-10	Helfer Jeffrey L	Magnetically shielded conductor
US7091412B2 (en)	2002-03-04	2006-08-15	Nanoset, Llc	Magnetically shielded assembly
JP2005128771A (ja) *	2003-10-23	2005-05-19	Fujitsu Ltd	データファイルシステム、データアクセスサーバ、およびデータアクセスプログラム

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5515771B1 (de) *	1967-01-12	1980-04-25
DE1804393A1 (de) *	1968-10-22	1970-05-27	Basf Ag	Verfahren zur Herstellung von magnetischen Aufzeichnungstraegern
JPS503926B1 (de) *	1968-10-23	1975-02-12
US3929658A (en) *	1972-11-02	1975-12-30	Du Pont	Magnetic recording compositions and elements of low abrasiveness and process for making them
JPS54143608A (en) *	1978-04-29	1979-11-09	Victor Co Of Japan Ltd	Magnetic recording medium
JPS5613525A (en) *	1979-07-16	1981-02-09	Tdk Corp	Magnetic recording medium
JPS576439A (en) *	1980-06-13	1982-01-13	Tdk Corp	Magnetic recording medium
JPS58203626A (ja) *	1982-05-20	1983-11-28	Tdk Corp	磁気記録媒体
JPS5928232A (ja) *	1982-08-09	1984-02-14	Victor Co Of Japan Ltd	磁気記録媒体

1985
- 1985-10-11 US US06/786,735 patent/US4778714A/en not_active Expired - Fee Related
1986
- 1986-07-14 CA CA000513673A patent/CA1290199C/en not_active Expired - Fee Related
- 1986-08-20 BR BR8603966A patent/BR8603966A/pt not_active IP Right Cessation
- 1986-09-10 JP JP61213693A patent/JPS6289225A/ja active Pending
- 1986-10-10 EP EP86307874A patent/EP0219330B1/de not_active Expired - Lifetime
- 1986-10-10 DE DE8686307874T patent/DE3681111D1/de not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US4778714A (en)	1988-10-18
BR8603966A (pt)	1987-11-17
EP0219330B1 (de)	1991-08-28
EP0219330A2 (de)	1987-04-22
CA1290199C (en)	1991-10-08
JPS6289225A (ja)	1987-04-23
EP0219330A3 (en)	1989-02-15

Legal Events

Date	Code	Title	Description
1992-09-24	8364	No opposition during term of opposition
1993-10-07	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE3675802D1 (de)	1991-01-10	Magnetbandgeraet.
DE3585466D1 (de)	1992-04-09	Magnetische aufzeichnungsvorrichtung.
DE68917535D1 (de)	1994-09-22	Magnetbandkassetten - Identifizierung.
DE3678811D1 (de)	1991-05-23	Magnetband-aufzeichnungs-/wiedergabegeraet.
DE3650146D1 (de)	1995-01-05	Magnetisches Wiedergabegerät.
NL194137B (nl)	2001-03-01	Magneetbandcassette.
DE3669604D1 (de)	1990-04-19	Magnetischer aufzeichnungstraeger.
DE3586171D1 (de)	1992-07-09	Magnetische aufnahme-/wiedergabevorrichtung.
DE3681111D1 (de)	1991-10-02	Nichtabrasives magnetisches aufzeichnungsband.
KR870001199U (ko)	1987-02-20	자기테이프 카세트
DE3871267D1 (de)	1992-06-25	Magnetbandkassette.
DE3577490D1 (de)	1990-06-07	Magnetischer aufzeichnungstraeger.
DE3575627D1 (de)	1990-03-01	Magnetischer aufzeichnungstraeger.
DE3672325D1 (de)	1990-08-02	Bandkassette.
DE3683824D1 (de)	1992-03-19	Magnetischer aufzeichnungstraeger.
DE3863982D1 (de)	1991-09-05	Magnetbandkassetten.
DE3682692D1 (de)	1992-01-16	Magnetbandspeichergeraet.
DE3685164D1 (de)	1992-06-11	Magnetbandkassette.
DE3682731D1 (de)	1992-01-16	Magnetbandkassette.
DE3676639D1 (de)	1991-02-07	Magnetischer aufzeichnungstraeger.
DE69012226D1 (de)	1994-10-13	Magnetbandkassette.
DE3575034D1 (de)	1990-02-01	Magnetischer aufzeichnungstraeger.
DE3575626D1 (de)	1990-03-01	Spurnachgesteuertes magnetbandgerat mit querspuraufzeichnung.
DE3688971D1 (de)	1993-10-07	Magnetisches Aufnahmegerät.
DE3482833D1 (de)	1990-08-30	Magnetische bandkassette.