DE68926413D1 - Seltene Erden enthaltende magnetische Trägerteilchen - Google Patents

Seltene Erden enthaltende magnetische Trägerteilchen

Info

Publication number: DE68926413D1
Authority: DE; Germany
Prior art keywords: particles containing; carrier particles; magnetic carrier; rare earths; containing rare
Prior art date: 1988-08-05
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

DE68926413T

Other languages

English (en)

Other versions

DE68926413T2 (de

Inventor

Bijay Shanker C O Eastman Saha

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.)

Eastman Kodak Co

Original Assignee

Eastman Kodak 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.)

1988-08-05

Filing date

1989-07-27

Publication date

1996-06-13

1989-07-27 Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co

1996-06-13 Publication of DE68926413D1 publication Critical patent/DE68926413D1/de

1997-01-02 Application granted granted Critical

1997-01-02 Publication of DE68926413T2 publication Critical patent/DE68926413T2/de

2009-07-28 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Links

Classifications

- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/10—Developers with toner particles characterised by carrier particles
- G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
- G03G9/108—Ferrite carrier, e.g. magnetite
- G03G9/1085—Ferrite carrier, e.g. magnetite with non-ferrous metal oxide, e.g. MgO-Fe2O3
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/10—Developers with toner particles characterised by carrier particles
- G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
- G03G9/1075—Structural characteristics of the carrier particles, e.g. shape or crystallographic structure
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G9/00—Developers
- G03G9/08—Developers with toner particles
- G03G9/10—Developers with toner particles characterised by carrier particles
- G03G9/107—Developers with toner particles characterised by carrier particles having magnetic components
- G03G9/1088—Binder-type carrier

DE68926413T 1988-08-05 1989-07-27 Seltene Erden enthaltende magnetische Trägerteilchen Expired - Fee Related DE68926413T2 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US07/229,382 US4855206A (en)	1988-08-05	1988-08-05	Rare earth containing magnetic carrier particles

Publications (2)

Publication Number	Publication Date
DE68926413D1 true DE68926413D1 (de)	1996-06-13
DE68926413T2 DE68926413T2 (de)	1997-01-02

Family

ID=22860995

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE68926413T Expired - Fee Related DE68926413T2 (de)	1988-08-05	1989-07-27	Seltene Erden enthaltende magnetische Trägerteilchen

Country Status (4)

Country	Link
US (1)	US4855206A (de)
EP (1)	EP0353630B1 (de)
JP (1)	JP2818444B2 (de)
DE (1)	DE68926413T2 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5061593A (en) *	1989-12-12	1991-10-29	Eastman Kodak Company	Coated carrier particles for electrographic developers
US5100754A (en) *	1989-12-12	1992-03-31	Eastman Kodak Company	Coated carrier particles and electrographic developers containing them
US5061586A (en) *	1990-04-05	1991-10-29	Eastman Kodak Company	Glass composite magnetic carrier particles
US5104761A (en) *	1990-09-14	1992-04-14	Eastman Kodak Company	Interdispersed three-phase ferrite composite and electrographic magnetic carrier particles therefrom
WO1993004408A1 (en) *	1991-08-16	1993-03-04	Eastman Kodak Company	Ferrite green beads and method of producing carrier particles
US5190841A (en) *	1991-12-19	1993-03-02	Eastman Kodak Company	Two-phase ferroelectric-ferromagnetic composite and carrier therefrom
US5190842A (en) *	1991-12-19	1993-03-02	Eastman Kodak Company	Two phase ferroelectric-ferromagnetic composite carrier
US5241327A (en) *	1992-06-01	1993-08-31	Eastman Kodak Company	Method and apparatus for removing untacked toner from images
US5306592A (en) *	1992-10-29	1994-04-26	Eastman Kodak Company	Method of preparing electrographic magnetic carrier particles
US5268249A (en) *	1992-10-29	1993-12-07	Eastman Kodak Company	Magnetic carrier particles
US5612131A (en) *	1993-04-26	1997-03-18	International Business Machines Corporation	Composite magneto-optic memory and media
US5500320A (en) *	1994-08-29	1996-03-19	Eastman Kodak Company	High speed developer compositions with ferrite carriers
US5512404A (en) *	1994-08-29	1996-04-30	Eastman Kodak Company	Developer compositions exhibiting high development speeds
US5998076A (en) *	1998-03-09	1999-12-07	Xerox Corporation	Carrier
US6528225B1 (en)	1998-03-09	2003-03-04	Xerox Corporation	Carrier
US6232026B1 (en)	2000-05-17	2001-05-15	Heidelberg Digital L.L.C.	Magnetic carrier particles
US6228549B1 (en)	2000-05-17	2001-05-08	Heidelberg Digital L.L.C.	Magnetic carrier particles
JP2003533745A (ja) *	2000-05-17	2003-11-11	ハイデルベルグ・ディジタル・エル・エル・シー	エレクトログラフ処理において硬質磁気キャリアを用いるための方法
US6723481B2 (en)	2000-05-17	2004-04-20	Heidelberger Druckmaschinen Ag	Method for using hard magnetic carriers in an electrographic process
US6391509B1 (en)	2000-08-17	2002-05-21	Xerox Corporation	Coated carriers
US6511780B1 (en)	2001-07-30	2003-01-28	Xerox Corporation	Carrier particles
US20060150902A1 (en) *	2004-03-09	2006-07-13	Eastman Kodak Company	Powder coating apparatus and method of powder coating using an electromagnetic brush
EP1723474A2 (de) *	2004-03-09	2006-11-22	Eastman Kodak Company	Pulverbeschichtung unter verwendung eines elektromagnetischen pinsels
US20060199094A1 (en)	2005-03-07	2006-09-07	Xerox Corporation	Carrier and developer compositions
US7426361B2 (en) *	2005-09-01	2008-09-16	Eastman Kodak Company	Developer mixing apparatus having four ribbon blenders
JP4803730B2 (ja) *	2006-03-30	2011-10-26	パウダーテック株式会社	強磁性材料粉、電子写真現像剤用キャリア及びこれらの製造方法、並びに電子写真現像剤

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3193502A (en) *	1960-09-16	1965-07-06	Weizmann Inst Of Science	Rare earth ferrites
JPS51124434A (en) *	1975-04-22	1976-10-29	Ricoh Co Ltd	Duplicating method for plural sheets
JPS57130403A (en) *	1981-02-05	1982-08-12	Daido Steel Co Ltd	Magnetic powder and magnet
JPS58202456A (ja) *	1982-04-07	1983-11-25	Hitachi Metals Ltd	電子写真用フエライトキヤリア−
WO1984001837A1 (en) *	1982-11-08	1984-05-10	Eastman Kodak Co	Electrographic developer composition and method for using the same
JPS5994763A (ja) *	1982-11-22	1984-05-31	Mita Ind Co Ltd	磁気ブラシ現像用二成分系現像剤
US4540645A (en) *	1983-01-31	1985-09-10	Mita Industrial Co Ltd	Magnetic brush development method
JPS6087352A (ja) *	1983-10-19	1985-05-17	Canon Inc	トナ−塗布方法
JPH0690969B2 (ja) *	1984-11-30	1994-11-14	株式会社東芝	磁気記録媒体用磁性粉及びそれを用いた磁気記録媒体
JPS61177469A (ja) *	1985-02-04	1986-08-09	Victor Co Of Japan Ltd	磁性カラ−トナ−
JPS61236560A (ja) *	1985-04-13	1986-10-21	Konishiroku Photo Ind Co Ltd	磁性トナ−
US4855205A (en) *	1988-08-05	1989-08-08	Eastman Kodak Company	Interdispersed two-phase ferrite composite and carrier therefrom

1988
- 1988-08-05 US US07/229,382 patent/US4855206A/en not_active Expired - Lifetime
1989
- 1989-07-27 DE DE68926413T patent/DE68926413T2/de not_active Expired - Fee Related
- 1989-07-27 EP EP89113846A patent/EP0353630B1/de not_active Expired - Lifetime
- 1989-08-04 JP JP1201475A patent/JP2818444B2/ja not_active Expired - Lifetime

Also Published As

Publication number	Publication date
EP0353630B1 (de)	1996-05-08
JP2818444B2 (ja)	1998-10-30
US4855206A (en)	1989-08-08
EP0353630A3 (en)	1990-07-11
JPH0287166A (ja)	1990-03-28
EP0353630A2 (de)	1990-02-07
DE68926413T2 (de)	1997-01-02

Legal Events

Date	Code	Title	Description
1997-06-05	8364	No opposition during term of opposition
2007-05-16	8339	Ceased/non-payment of the annual fee

Publication	Publication Date	Title
DE68926413D1 (de)	1996-06-13	Seltene Erden enthaltende magnetische Trägerteilchen
DE69307755D1 (de)	1997-03-13	Magnetischer Aufzeichnungsträger
EP0296072A3 (en)	1989-11-15	Electrostatic magnetic carrier particles
DE69213115T2 (de)	1997-03-06	Magnetischer Aufzeichnungsträger
DE69314672D1 (de)	1997-11-27	Magnetischer Aufzeichnungsträger
EP0344018A3 (en)	1990-03-14	Rare earth permanent magnet
DE69326124D1 (de)	1999-09-30	Magnetischer Aufzeichnungsträger
DE69332536T2 (de)	2003-09-04	Magnetischer aufzeichnungsträger
DE3888949T2 (de)	1994-07-21	Permanent-Magnet aus seltenen Erden.
DE68925792D1 (de)	1996-04-04	Magnetischer Aufzeichnungsträger
DE3780036T2 (de)	1993-06-09	Magnetische traegerteilchen.
DE3784245T2 (de)	1993-09-02	Magnetische traegerteilchen.
DE68928218D1 (de)	1997-09-04	Magnetischer Aufzeichnungsträger
DE69310417T2 (de)	1997-12-18	Magnetische Trägerteilchen
GB8917559D0 (en)	1989-09-13	Magnetic devices
DE68925045T2 (de)	1996-08-22	Magnetischer Aufzeichnungsträger
DE69024587D1 (de)	1996-02-15	Magnetischer Aufzeichnungsträger
DE69216780D1 (de)	1997-02-27	Magnetischer aufzeichnungsträger
EP0418023A3 (en)	1992-02-05	Cobalt-based magnet free of rare earths
GB2236430B (en)	1993-11-17	Magnetic holding devices
DE69323128T2 (de)	1999-05-27	Magnetischer Aufzeichnungsträger
DE69317038T2 (de)	1998-06-10	Magnetischer Aufzeichnungsträger
GB2198665B (en)	1991-02-13	Magnetic particle detection
DE69325214D1 (de)	1999-07-15	Magnetischer Aufzeichnungsträger
DE68927210T2 (de)	1997-02-06	Magnetischer Aufzeichnungsträger