DE69827690D1 - Spherische zusammengesetzte Teilchen und elektrophotographische magnetische Trägerteilchen - Google Patents

Spherische zusammengesetzte Teilchen und elektrophotographische magnetische Trägerteilchen

Info

Publication number
DE69827690D1
DE69827690D1 DE69827690T DE69827690T DE69827690D1 DE 69827690 D1 DE69827690 D1 DE 69827690D1 DE 69827690 T DE69827690 T DE 69827690T DE 69827690 T DE69827690 T DE 69827690T DE 69827690 D1 DE69827690 D1 DE 69827690D1
Authority
DE
Germany
Prior art keywords
particles
magnetic carrier
spherical composite
electrophotographic magnetic
composite particles
Prior art date
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
DE69827690T
Other languages
English (en)
Inventor
Toshiyuki Hakata
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.)
Toda Kogyo Corp
Original Assignee
Toda Kogyo 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.)
Filing date
Publication date
Application filed by Toda Kogyo Corp filed Critical Toda Kogyo Corp
Application granted granted Critical
Publication of DE69827690D1 publication Critical patent/DE69827690D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • 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
    • G03G9/108—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
    • G03G9/1088—Binder-type carrier
    • G03G9/10884—Binder is obtained other than by reactions only involving carbon-carbon unsaturated bonds
    • 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
    • G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
    • G03G9/1132—Macromolecular components of coatings
    • G03G9/1133—Macromolecular components of coatings obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • 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
    • G03G9/113—Developers with toner particles characterised by carrier particles having coatings applied thereto
    • G03G9/1132—Macromolecular components of coatings
    • G03G9/1135—Macromolecular components of coatings obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
DE69827690T 1997-03-27 1998-03-25 Spherische zusammengesetzte Teilchen und elektrophotographische magnetische Trägerteilchen Expired - Lifetime DE69827690D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP09472197A JP3397229B2 (ja) 1997-03-27 1997-03-27 球状複合体粒子粉末及び該粒子粉末からなる電子写真用磁性キャリア

Publications (1)

Publication Number Publication Date
DE69827690D1 true DE69827690D1 (de) 2004-12-30

Family

ID=14118000

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69827690T Expired - Lifetime DE69827690D1 (de) 1997-03-27 1998-03-25 Spherische zusammengesetzte Teilchen und elektrophotographische magnetische Trägerteilchen

Country Status (4)

Country Link
US (1) US6017667A (de)
EP (1) EP0867779B1 (de)
JP (1) JP3397229B2 (de)
DE (1) DE69827690D1 (de)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6689485B2 (en) * 1997-01-17 2004-02-10 The Penn State Research Foundation Powerful reductant for decontamination of groundwater and surface streams
US6372338B1 (en) * 1997-12-12 2002-04-16 Eastman Kodak Company Spherical magnetic particles for magnetic recording media
JP4086433B2 (ja) * 1998-11-06 2008-05-14 キヤノン株式会社 二成分系現像剤及び画像形成方法
EP0999477B1 (de) * 1998-11-06 2005-11-02 Toda Kogyo Corporation Elektrophotographischer magnetischer Träger
US6312862B1 (en) 1998-11-06 2001-11-06 Canon Kabushiki Kaisha Two-component type developer and image forming method
KR100686991B1 (ko) * 2000-03-08 2007-02-27 마쯔시다덴기산교 가부시키가이샤 노이즈 필터 및 노이즈 필터를 이용한 전자 기기
JP4422857B2 (ja) * 2000-03-28 2010-02-24 キヤノン株式会社 画像形成装置
JP3925835B2 (ja) * 2000-04-10 2007-06-06 株式会社日立製作所 電磁波吸収材とその製造法及びそれを用いた各種用途
US6936394B2 (en) * 2001-02-28 2005-08-30 Canon Kabushiki Kaisha Replenishing developer and developing method
US6617089B2 (en) * 2001-11-29 2003-09-09 Xerox Corporation Developer composition for non-interactive magnetic brush development
US6677098B2 (en) * 2001-11-29 2004-01-13 Xerox Corporation Developer composition for non-interactive magnetic brush development
JP2003323007A (ja) * 2002-04-26 2003-11-14 Toda Kogyo Corp 電子写真現像剤用磁性キャリア
JP4168248B2 (ja) * 2002-11-01 2008-10-22 戸田工業株式会社 電子写真現像剤用磁性キャリア
WO2005033790A1 (ja) * 2003-10-06 2005-04-14 Kabushiki Kaisha Pilot Corporation (Also Trading As Pilot Corporation) 磁気泳動反転表示パネルおよび磁気泳動反転表示方法
JP4512919B2 (ja) * 2004-03-16 2010-07-28 香川県 酸化鉄含有廃棄物を用いた高周波帯域用電磁波吸収材料
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
JP5326464B2 (ja) * 2008-09-25 2013-10-30 富士ゼロックス株式会社 静電荷現像用キャリア、静電荷現像用現像剤、静電荷現像用現像剤カートリッジ、プロセスカートリッジ、及び画像形成装置
CN101572143B (zh) * 2009-03-11 2011-04-06 南京信息工程大学 复合永磁粉及其制备方法
JP5461870B2 (ja) * 2009-04-06 2014-04-02 Ｄｏｗａエレクトロニクス株式会社 磁性粒子、キャリア芯材、およびその製造方法、並びに、キャリアおよび電子写真現像剤
WO2010140677A1 (ja) * 2009-06-04 2010-12-09 戸田工業株式会社 電子写真現像剤用磁性キャリア及びその製造方法、並びに二成分系現像剤
JP5773118B2 (ja) * 2010-12-08 2015-09-02 戸田工業株式会社 電子写真現像剤用磁性キャリア及びその製造方法、並びに二成分系現像剤
JP6121675B2 (ja) * 2012-09-27 2017-04-26 Ｄｏｗａエレクトロニクス株式会社 焼結粒子及びそれを用いた電子写真現像剤用キャリア、電子写真用現像剤並びに焼結粒子の製造方法
JP6814056B2 (ja) * 2017-01-24 2021-01-13 パウダーテック株式会社 フェライト粉および樹脂組成物
CN108172356A (zh) * 2018-01-30 2018-06-15 广州新莱福磁电有限公司 一种双性磁性材料及其制作方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4336546A (en) * 1977-03-15 1982-06-22 E. I. Du Pont De Nemours And Company Magnetic printing apparatus
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−
US4546060A (en) * 1982-11-08 1985-10-08 Eastman Kodak Company Two-component, dry electrographic developer compositions containing hard magnetic carrier particles and method for using the same
JPS60196777A (ja) * 1984-03-21 1985-10-05 Hitachi Metals Ltd 静電荷像現像剤用キヤリア
US5108862A (en) * 1989-02-21 1992-04-28 Toda Kogyo Corp. Composite carrier particles for electrophotography and process for producing the same
US5118587A (en) * 1989-07-28 1992-06-02 Toda Kogyo Corporation Magnetic particles used for electrostatic latent image developer and process for producing the same
EP0559250B1 (de) * 1992-02-29 1997-05-07 Agfa-Gevaert N.V. Magnetische Trägerteilchen
DE69309801T2 (de) * 1992-07-22 1997-10-30 Canon Kk Trägerteilchen für die Elektrophotographie, Zweikomponententypentwickler und Bildherstellungsverfahren
EP0708379B1 (de) * 1994-10-05 1999-08-04 Toda Kogyo Corp. Magnetischer Träger für Elektrophotographie

Also Published As

Publication number Publication date
EP0867779A2 (de) 1998-09-30
JPH10268575A (ja) 1998-10-09
EP0867779A3 (de) 1998-12-30
EP0867779B1 (de) 2004-11-24
US6017667A (en) 2000-01-25
JP3397229B2 (ja) 2003-04-14

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Legal Events

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8332 No legal effect for de