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1. 发明专利

DE60037564D1 未知
公开(公告)号：DE60037564D1
公开(公告)日：2008-02-07
申请号：DE60037564
申请日：2000-10-25
申请人： CANON KK
发明人： KOMOTO KEIJI , KUKIMOTO TSUTOMU , CHIBA TATSUHIKO , HASHIMOTO AKIRA
IPC分类号： G03G9/087 , G03G9/08
摘要： A dry toner has toner particles containing at least a binder resin, a colorant and a wax component, and an external additive. The binder resin contains a component derived from a monomer selected from the group consisting of butadiene, isoprene and chloroprene. The toner has a main Tg of front 40 DEG C to 70 DEG C as measured by DSC. When specific surface area measured by the BET method when the toner is left for 72 hours in an environment of 23 DEG C atmospheric temperature and 65% relative humidity is represented by A (m /g) and specific surface area measured by the BET method when the toner is left for 72 hours in an environment of 50 DEG C atmospheric temperature and 3% relative humidity is represented by B (m /g), the toner satisfies the following relationship: 0.8 ≤ A ≤ 4.0, 0.80 ≤ (B/A) ≤ 1.05. In a toner's number-based circle-corresponding diameter/circularity scatter diagram as measured with a flow type particle image analyzer, the toner has a circle-corresponding number-average particle diameter D1 of from 2 to 10 mu m and has an average circularity of from 0.950 to 0.995 and a circularity standard deviation of less than 0.040. The toner has, in its molecular-weight distribution of THF-soluble matter as measured by GPC, a main-peak molecular weight in the region of from 2,000 to 100,000 and contains a THF-insoluble matter in an amount of from 5 to 60% by weight.

2. 发明专利

DE69834986D1 未知
公开(公告)号：DE69834986D1
公开(公告)日：2006-08-03
申请号：DE69834986
申请日：1998-09-04
申请人： CANON KK
发明人： HASHIMOTO AKIRA , KUKIMOTO TSUTOMU , OHNO MANABU , TAKIGUCHI TSUYOSHI , AYAKI YASUKAZU , HANDA SATOSHI , ITO MASANORI , KOMOTO KEIJI
IPC分类号： G03G9/087
摘要： A toner is comprised of a binder resin, a colorant and a wax. The binder resin has a polycarbonate resin in an amount of from 0.1% by weight to 50.0% by weight and a resin other than the polycarbonate resin in an amount of from 50.0% by weight to 99.9% by weight, based on the weight of the binder resin. In molecular weight distribution as measured by gel permeation chromatography of tetrahydrofuran-soluble matter, the toner contains in an amount of 15.0% by weight or less based on the weight of the toner a component which has in its structure a repeating unit of the polycarbonate resin and is contained in components having a molecular weight of 1,000 or less.

3. 发明专利

DE60115737T2 未知
公开(公告)号：DE60115737T2
公开(公告)日：2006-07-27
申请号：DE60115737
申请日：2001-02-20
申请人： CANON KK
发明人： MAGOME MICHIHISA , KUKIMOTO TSUTOMU , TAKIGUCHI TSUYOSHI , CHIBA TATSUHIKO , HASHIMOTO AKIRA , KOMOTO KEIJI
IPC分类号： G03G9/083 , G03G9/08 , G03G9/087
摘要： A magnetic toner comprising magnetic toner particles containing at least a binder resin, a magnetic material containing a magnetic ion oxide, and a release agent. The magnetic toner has a weight-average particle diameter of from 3 mu m to 10 mu m, a magnetization intensity (saturation magnetization) of from-10 Am /kg to 50 Am /kg (emu/g) under application of a magnetic field of 79.6 kA/m (1,000 oersteds), an average circularity of 0.970 or more, a ratio of weight-average particle diameter to number-average particle diameter, of 1.40 or less, iron and an iron compound which stand liberated from the magnetic toner particles at a liberation percentage of from O.05% to 3.00%, and a resin component having a tetrahydrofuran-insoluble matter in an amount of from 3% by weight to 60% by weight. Also disclosed is an image-forming method making use of the magnetic toner.

4. 发明专利

AU761106B2 Magnetic toner, process for production thereof, and image forming method, apparatus and process cartridge using the toner 未知
公开(公告)号：AU761106B2
公开(公告)日：2003-05-29
申请号：AU2491501
申请日：2001-03-07
申请人： CANON KK
发明人： HASHIMOTO AKIRA , OKADO KENJI , KUKIMOTO TSUTOMU , NAKAMURA TATSUYA , TAKIGUCHI TSUYOSHI , CHIBA TATSUHIKO , MAGOME MICHIHISA , KOMOTO KEIJI
IPC分类号： G03G9/08 , G03G9/083 , G03G9/087
摘要： A magnetic toner includes: magnetic toner particles each comprising at least a binder resin and magnetic toner, and inorganic fine powder. The magnetic toner has an average circularity of at least 0.970, and a magnetization of 10 - 50 Am /kg at a magnetic field of 79.6 kA/m. The magnetic powder comprises at least magnetic iron oxide. The magnetic toner particles retain carbon in an amount of A and iron in an amount of B at surfaces thereof as measured by X-ray photoelectron spectroscopy, satisfying: B/A

5. 发明专利

DE69612892T2 未知
公开(公告)号：DE69612892T2
公开(公告)日：2001-10-25
申请号：DE69612892
申请日：1996-02-09
申请人： CANON KK
发明人： KUKIMOTO TSUTOMU , URAWA MOTOO , OKADO KENJI , UGAI TOSHIYUKI , NOZAWA KEITA , YOSHIDA SATOSHI , KARAKI YUKI
IPC分类号： G03G9/08 , G03G9/09 , G03G9/097
摘要： A toner kit comprises a yellow toner comprising i) yellow toner particles containing a yellow colorant and a binder resin and ii) an inorganic fine powder, a magenta toner comprising i) magenta toner particles containing a magenta colorant and a binder resin and ii) an inorganic fine powder, a cyan toner comprising i) cyan toner particles containing a cyan colorant and a binder resin and ii) an inorganic fine powder, and a black toner comprising i) black toner particles containing at least one of carbon black and magnetic material and a binder resin and ii) an inorganic fine powder. The black toner has the value of shape factor SF-2 of 140 or less, and greater than the values of shape factors SF-2 of said yellow toner, magenta toner and cyan toner.

6. 发明专利

DE69032762D1 未知
公开(公告)号：DE69032762D1
公开(公告)日：1998-12-17
申请号：DE69032762
申请日：1990-07-27
申请人： CANON KK
发明人： OHNO MANABU , OCHI HISAYUKI , KUWASHIMA TETSUHITO , SUEMATSU HIROYUKI , IMAI EIICHI , TAKIGUCHI TSUYOSHI , TOMIYAMA KOICHI , KUKIMOTO TSUTOMU , YUSA HIROSHI
IPC分类号： G03G15/02 , G03G9/08 , G03G9/083 , G03G9/087 , G03G9/097 , G03G13/02 , G03G13/09 , G03G15/08 , H04N1/29 , G03G9/16 , G03G15/09
摘要： An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

7. 发明专利

DE69129973D1 未知
公开(公告)号：DE69129973D1
公开(公告)日：1998-09-17
申请号：DE69129973
申请日：1991-11-29
申请人： CANON KK
发明人： TSUCHIYA KIYOKO , TOMIYAMA KOICHI , KATO MASAYOSHI , KUKIMOTO TSUTOMU , YUSA HIROSHI
IPC分类号： G03G9/087
摘要： A toner for developing an electrostatic image is provided as a pulverized mixture which includes a binder resin and a colorant. The binder resin is characterized by the following molecular weight distribution on a GPC chromatogram for that part of the resin which is soluble in tetrahydrofuran (THF). This soluble part includes: 15% to 35% of a resin component in a molecular weight region of at most 5000 and at least 3 wt. % of a resin component in a molecular weight region of at least 5x10 and showing a main peak in a molecular weight region of 5000 to 10 . The binder resin also has an acid value of 2 - 100 mg KOH/g. The THF-soluble resin component in the molecular weight region of at least 5x10 is enriched during a melt-kneading step during the toner production.

8. 发明专利

HK150396A Image forming apparatus 未知
公开(公告)号：HK150396A
公开(公告)日：1996-08-16
申请号：HK150396
申请日：1996-08-08
申请人： CANON KK
发明人： OHNO MANABU , OCHI HISAYUKI , KUWASHIMA TETSUHITO , SUEMATSU HIROYUKO , IMAI EIICHI , TAKIGUCHI TSUYOSHI , TOMIYAMA KOICHI , KUKIMOTO TSUTOMU , YUSA HIROSHI
IPC分类号： G03G15/02 , G03G9/08 , G03G9/083 , G03G9/087 , G03G9/097 , G03G13/02 , G03G13/09 , G03G15/08 , H04N1/29 , G03G15/09 , G03B9/08 , G03G9/16
摘要： An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

9. 发明专利

ES2074499T3 未知
公开(公告)号：ES2074499T3
公开(公告)日：1995-09-16
申请号：ES90114485
申请日：1990-07-27
申请人： CANON KK
发明人： OHNO MANABU , OCHI HISAYUKI , KUWASHIMA TETSUHITO , SUEMATSU HIROYUKI , IMAI EIICHI , TAKIGUCHI TSUYOSHI , TOMIYAMA KOICHI , KUKIMOTO TSUTOMU , YUSA HIROSHI
IPC分类号： G03G15/02 , G03G9/08 , G03G9/083 , G03G9/087 , G03G9/097 , G03G13/02 , G03G13/09 , G03G15/08 , H04N1/29 , G03G15/09 , G03G9/16
摘要： An image forming apparatus includes a member to be charged for carrying an electrostatic image, a contact-charging means for charging the member to be charged in contact with the member to be charged, and a developing means for developing the electrostatic image carried on the member to be charged. The developing means includes a developer for developing the electrostatic image comprising a toner and hydrophobic inorganic fine powder. The hydrophobic inorganic fine powder not only improves the fluidity of the developer and adjusts the chargeability of the developer but also prevents difficulties due to interaction between the member to be charged and the contact charging means in the presence of residual developer, such as damages of the member to be charged and toner-sticking onto the member to be charged.

10. 发明专利

CA2029468A1 TONER, IMAGE FORMING APPARATUS, APPARATUS UNIT AND FACSIMILE APPARATUS 未知
公开(公告)号：CA2029468A1
公开(公告)日：1991-05-10
申请号：CA2029468
申请日：1990-11-07
申请人： CANON KK
发明人： KUKIMOTO TSUTOMU , YUSA HIROSHI , TAKIGUCHI TSUYOSHI , TOMIYAMA KOICHI , KUWASHIMA TETSUHITO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/097

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