EP0945766A3 - Schwarze nicht-magnetische zusammengesetzte Teilchen für schwarze Toner und schwarze Toner, worin sie eingesetzt werden - Google Patents

Schwarze nicht-magnetische zusammengesetzte Teilchen für schwarze Toner und schwarze Toner, worin sie eingesetzt werden Download PDF

Info

Publication number
EP0945766A3
EP0945766A3 EP99302317A EP99302317A EP0945766A3 EP 0945766 A3 EP0945766 A3 EP 0945766A3 EP 99302317 A EP99302317 A EP 99302317A EP 99302317 A EP99302317 A EP 99302317A EP 0945766 A3 EP0945766 A3 EP 0945766A3
Authority
EP
European Patent Office
Prior art keywords
black
black toner
hematite
iron oxide
magnetic composite
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.)
Granted
Application number
EP99302317A
Other languages
English (en)
French (fr)
Other versions
EP0945766A2 (de
EP0945766B1 (de
Inventor
Kazuyuki Hayashi
Hiroko Morii
Yasuyuki Tanaka
Seiji Ishitani
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
Publication of EP0945766A2 publication Critical patent/EP0945766A2/de
Publication of EP0945766A3 publication Critical patent/EP0945766A3/de
Priority to US10/073,362 priority Critical patent/US20020182525A1/en
Application granted granted Critical
Publication of EP0945766B1 publication Critical patent/EP0945766B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G03G9/083—Magnetic toner particles
    • G03G9/0838—Size of magnetic components
    • 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
    • G03G9/083—Magnetic toner particles
    • G03G9/0839—Treatment of the magnetic components; Combination of the magnetic components with non-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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0902—Inorganic compounds
    • 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
    • G03G9/09—Colouring agents for toner particles
    • G03G9/0902—Inorganic compounds
    • G03G9/0904—Carbon black

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Developing Agents For Electrophotography (AREA)
EP19990302317 1998-03-26 1999-03-25 Schwarze nicht-magnetische zusammengesetzte Teilchen für schwarze Toner und schwarze Toner, worin sie eingesetzt werden Expired - Lifetime EP0945766B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/073,362 US20020182525A1 (en) 1998-03-26 2002-02-13 Black toner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP10013698 1998-03-26
JP10013698 1998-03-26

Publications (3)

Publication Number Publication Date
EP0945766A2 EP0945766A2 (de) 1999-09-29
EP0945766A3 true EP0945766A3 (de) 2000-02-23
EP0945766B1 EP0945766B1 (de) 2003-05-14

Family

ID=14265911

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990302317 Expired - Lifetime EP0945766B1 (de) 1998-03-26 1999-03-25 Schwarze nicht-magnetische zusammengesetzte Teilchen für schwarze Toner und schwarze Toner, worin sie eingesetzt werden

Country Status (2)

Country Link
EP (1) EP0945766B1 (de)
DE (1) DE69907795T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6420030B1 (en) 1997-10-31 2002-07-16 Toda Kogyo Corporation Black iron-based composite particles, process for producing the same, paint and rubber or resin composition containing the same
US6352776B1 (en) 1997-12-12 2002-03-05 Toda Kogyo Corporation Magnetic recording medium, non-magnetic acicular black iron-based composite particles and process for producing the particles
JP4366551B2 (ja) * 1999-08-03 2009-11-18 戸田工業株式会社 磁気記録媒体の非磁性下地層用針状非磁性粒子粉末並びに磁気記録媒体
EP1102245A1 (de) * 1999-11-15 2001-05-23 Toda Kogyo Corporation Schwarzes Füllmaterial und dieses enthaltendes magnetisches Aufzeichnungsmedium
JP2002087821A (ja) * 2000-07-14 2002-03-27 Toda Kogyo Corp 黒色トナー用黒色非磁性粒子粉末及び該黒色非磁性粒子粉末を用いた黒色トナー
EP1205811B9 (de) * 2000-11-01 2008-10-08 Fuji Xerox Co., Ltd. Schwarzer elektrophotographischer Toner, elektrophotographischer Entwickler und Bildherstellungsverfahren
JP2003057879A (ja) * 2001-06-07 2003-02-28 Toda Kogyo Corp 黒色トナー用黒色複合粒子粉末及び黒色トナー、該黒色トナーを用いた現像方式

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55147638A (en) * 1979-05-08 1980-11-17 Canon Inc Magnetic toner
JPH0297968A (ja) * 1988-10-05 1990-04-10 Canon Inc 磁性トナー
EP0453261A1 (de) * 1990-04-18 1991-10-23 Toda Kogyo Corp. Alterungsbeständiges Eisenoxid als Färbungsmittel für Kunstharze
EP0582472A1 (de) * 1992-08-07 1994-02-09 Toda Kogyo Corp. Nicht magnetische Teilchen
US5324571A (en) * 1992-02-05 1994-06-28 Konica Corporation Magnetic recording medium comprising a support and a plurality of layers in which the magnetic layer has a specified plastic deformation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55147638A (en) * 1979-05-08 1980-11-17 Canon Inc Magnetic toner
JPH0297968A (ja) * 1988-10-05 1990-04-10 Canon Inc 磁性トナー
EP0453261A1 (de) * 1990-04-18 1991-10-23 Toda Kogyo Corp. Alterungsbeständiges Eisenoxid als Färbungsmittel für Kunstharze
US5324571A (en) * 1992-02-05 1994-06-28 Konica Corporation Magnetic recording medium comprising a support and a plurality of layers in which the magnetic layer has a specified plastic deformation
EP0582472A1 (de) * 1992-08-07 1994-02-09 Toda Kogyo Corp. Nicht magnetische Teilchen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199020, Derwent World Patents Index; Class E05, AN 1990-152560, XP002124764 *
PATENT ABSTRACTS OF JAPAN vol. 5, no. 21 (P - 048) 7 February 1981 (1981-02-07) *

Also Published As

Publication number Publication date
DE69907795T2 (de) 2004-04-01
EP0945766A2 (de) 1999-09-29
EP0945766B1 (de) 2003-05-14
DE69907795D1 (de) 2003-06-18

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