DE69110117D1 - Magnetischer Aufzeichnungsträger. - Google Patents

Magnetischer Aufzeichnungsträger.

Info

Publication number: DE69110117D1
Authority: DE; Germany
Prior art keywords: record carrier; magnetic record; magnetic; carrier; record
Prior art date: 1990-12-25
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 - Fee Related

Application number

DE69110117T

Other languages

English (en)

Other versions

DE69110117T2 (de

DE69110117T3 (de

Inventor

Yasunobu Sugyo

Haruhiko Narusawa

Takeshi Yatsuka

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.)

Toyobo Co Ltd

Original Assignee

Toyobo Co 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.)

1990-12-25

Filing date

1991-12-22

Publication date

1995-07-06

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26422610&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69110117(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1991-03-20 Priority claimed from JP03081598A external-priority patent/JP3085408B2/ja

1991-12-22 Application filed by Toyobo Co Ltd filed Critical Toyobo Co Ltd

1995-07-06 Publication of DE69110117D1 publication Critical patent/DE69110117D1/de

1996-02-15 Publication of DE69110117T2 publication Critical patent/DE69110117T2/de

1998-10-22 Application granted granted Critical

1998-10-22 Publication of DE69110117T3 publication Critical patent/DE69110117T3/de

2011-12-23 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
- G11B5/702—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 the bonding agent
- G11B5/7021—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 the bonding agent containing a polyurethane or a polyisocyanate
- 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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T428/31609—Particulate metal or metal compound-containing

DE69110117T 1990-12-25 1991-12-22 Magnetischer Aufzeichnungsträger. Expired - Fee Related DE69110117T3 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP41419690		1990-12-25
JP03081598A JP3085408B2 (ja)	1991-03-20	1991-03-20	磁気記録媒体

Publications (3)

Publication Number	Publication Date
DE69110117D1 true DE69110117D1 (de)	1995-07-06
DE69110117T2 DE69110117T2 (de)	1996-02-15
DE69110117T3 DE69110117T3 (de)	1998-10-22

Family

ID=26422610

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69110117T Expired - Fee Related DE69110117T3 (de)	1990-12-25	1991-12-22	Magnetischer Aufzeichnungsträger.

Country Status (3)

Country	Link
US (1)	US5415941A (de)
EP (1)	EP0492568B2 (de)
DE (1)	DE69110117T3 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPH05298662A (ja) *	1992-04-14	1993-11-12	Fuji Photo Film Co Ltd	磁気記録媒体用結合剤および磁気記録媒体
KR100304157B1 (ko) *	1993-08-05	2001-11-22	시바타 미노루	자기기록매체
JP3494309B2 (ja) *	1994-04-07	2004-02-09	富士写真フイルム株式会社	磁気記録媒体
US6376083B1 (en) *	1994-09-22	2002-04-23	Fuji Photo Film, Ltd.	Magnetic recording medium
US5876833A (en) *	1995-05-10	1999-03-02	Fuji Photo Film Co., Ltd.	Magnetic recording medium containing magnetic powder and a polyurethane binder having a specified radius of gyration

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS6234326A (ja) *	1985-08-07	1987-02-14	Toyobo Co Ltd	磁気記録媒体
US4855377A (en) *	1987-08-04	1989-08-08	Asahi Kasei Kogyo Kabushiki Kaisha	Novel copolycarbonate
JPH02618A (ja) *	1987-12-16	1990-01-05	Toyobo Co Ltd	放射線硬化型樹脂及びそれを用いた磁気記録媒体
AU616516B2 (en) *	1988-05-27	1991-10-31	Takeda Chemical Industries Ltd.	Binders for magnetic recording media and magnetic recording media
JPH024736A (ja) *	1988-06-22	1990-01-09	Hitachi Maxell Ltd	ポリカーボネートポリオール、芳香族ポリカーボネートポリウレタン樹脂、コーティング材、キャストフィルム、磁気記録媒体
DE69030981T2 (de) *	1989-03-30	1997-10-23	Toyo Boseki	Strahlungshärtbares Harz und dieses enthaltende Zusammensetzung
US5124424A (en) *	1989-04-26	1992-06-23	Nippon Polyurethane Industry Co., Ltd.	Polyurethane resin binder for magnetic recording mediums comprising a polycarbonate polyol

1991
- 1991-12-19 US US07/810,952 patent/US5415941A/en not_active Expired - Lifetime
- 1991-12-22 DE DE69110117T patent/DE69110117T3/de not_active Expired - Fee Related
- 1991-12-22 EP EP19910122095 patent/EP0492568B2/de not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0492568A1 (de)	1992-07-01
DE69110117T2 (de)	1996-02-15
EP0492568B1 (de)	1995-05-31
DE69110117T3 (de)	1998-10-22
EP0492568B2 (de)	1998-03-11
US5415941A (en)	1995-05-16

Legal Events

Date	Code	Title
1996-05-15	8363	Opposition against the patent
1998-05-14	8366	Restricted maintained after opposition proceedings
2004-10-21	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE69213115D1 (de)	1996-10-02	Magnetischer Aufzeichnungsträger
DE3888860D1 (de)	1994-05-11	Magnetischer Aufzeichnungsträger.
DE3850833D1 (de)	1994-09-01	Magnetischer Aufzeichnungsträger.
DE69307755D1 (de)	1997-03-13	Magnetischer Aufzeichnungsträger
DE69013099D1 (de)	1994-11-10	Magnetischer Aufzeichnungsträger.
DE69314672D1 (de)	1997-11-27	Magnetischer Aufzeichnungsträger
DE69020224D1 (de)	1995-07-27	Magnetischer Aufzeichnungsträger.
DE69020711D1 (de)	1995-08-10	Magnetischer Aufzeichnungsträger.
DE69128215D1 (de)	1998-01-02	Magnetischer Aufzeichnungsträger
DE69111130D1 (de)	1995-08-17	Magnetisch aufzeichnendes Plattensystem.
DE3788972D1 (de)	1994-03-17	Magnetischer Aufzeichnungsträger.
DE69110362D1 (de)	1995-07-20	Magnetischer Aufzeichnungsträger.
DE69226355D1 (de)	1998-08-27	Magnetischer aufzeichnungsträger
DE3789130D1 (de)	1994-03-31	Magnetischer Aufzeichnungsträger.
DE69005471D1 (de)	1994-02-10	Magnetischer Aufzeichnungsträger.
DE69105810D1 (de)	1995-01-26	Magnetischer Aufzeichnungsträger.
DE68909002D1 (de)	1993-10-14	Magnetischer Aufzeichnungsträger.
DE69110117D1 (de)	1995-07-06	Magnetischer Aufzeichnungsträger.
DE3788295D1 (de)	1994-01-13	Magnetischer Aufzeichnungsträger.
DE69110085D1 (de)	1995-07-06	Magnetischer Aufzeichnungsträger.
DE59106529D1 (de)	1995-10-26	Magnetischer Aufzeichnungsträger.
DE3889137D1 (de)	1994-05-26	Magnetischer Aufzeichnungsträger.
DE59203037D1 (de)	1995-08-31	Magnetischer Aufzeichnungsträger.
DE69015269D1 (de)	1995-02-02	Magnetischer Aufzeichnungsträger.
DE59006121D1 (de)	1994-07-21	Magnetischer Aufzeichnungsträger.