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公开(公告)号：US20240319627A1
公开(公告)日：2024-09-26
申请号：US18582078
申请日：2024-02-20
Applicant: FUJIFILM BUSINESS INNOVATION CORP.
Inventor： Takahisa TATEKAWA , Yukiaki NAKAMURA , Kohei MANABE
CPC classification number: G03G9/0926 , C09K11/06 , G03G9/08755 , G03G9/0918 , G03G9/0928 , G03G15/08 , C09K2211/10
Abstract: A fluorescent green toner includes toner particles including a fluorescent yellow dye Sy, a peak wavelength of a spectral reflectance of the fluorescent yellow dye Sy being at 500 nm or more and 550 nm or less, a yellow pigment Py, and at least one pigment Pgc selected from the group consisting of a green pigment and a cyan pigment, wherein CSy/(CPy+CPgc) is 0.01 or more and 0.3 or less, and (CSy+CPy)/CPgc is 0.3 or more and 1.5 or less, where CSy, CPy, and CPgc represent contents of the fluorescent yellow dye Sy, the yellow pigment Py, and the pigment Pgc in the toner particles, respectively.
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公开(公告)号：US20230384700A1
公开(公告)日：2023-11-30
申请号：US18154049
申请日：2023-01-13
Applicant: FUJIFILM Business Innovation Corp.
Inventor： Takahisa TATEKAWA , Yukiaki NAKAMURA , Kohei MANABE
CPC classification number: G03G9/0926 , G03G9/0918 , G03G9/08782 , G03G9/0935 , G03G9/09307 , G03G15/0105 , C09K11/06 , C09K2211/10
Abstract: A fluorescent green toner contains toner particles containing a binder resin, a release agent, a fluorescent pigment having a hydrophilic group, and a pigment having a halogen atom.
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公开(公告)号：US20230152725A1
公开(公告)日：2023-05-18
申请号：US18053462
申请日：2022-11-08
Applicant: CANON KABUSHIKI KAISHA
Inventor： Kouichirou Ochi , Masayuki Hama , Yuka Gunji , Hayato Ida , Kaoru Yoshida
CPC classification number: G03G9/09733 , G03G9/08755 , G03G9/0918 , G03G9/0819 , G03G9/09708 , G03G9/081
Abstract: A toner comprising a toner particle comprising an organic pigment and a binder resin, wherein, in a solid-state NMR measurement at 60° C. using a solid fraction obtained by specific procedure for dissolving the toner in chloroform as a sample, a transverse relaxation time T2 of a peak observed between 1.5 and 2.5 ppm is from 0.08 to 0.13 ms.
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公开(公告)号：US09964876B2
公开(公告)日：2018-05-08
申请号：US15658161
申请日：2017-07-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noritaka Toyoizumi , Yusuke Kosaki , Tetsuya Kinumatsu , Kenji Aoki , Toshifumi Mori , Sakae Suda , Shinnosuke Koji , Shuntaro Watanabe , Kazumichi Nakahama , Atsushi Tani , Takashige Kasuya
CPC classification number: G03G9/0825 , G03G9/0819 , G03G9/0821 , G03G9/08755 , G03G9/08773 , G03G9/08795 , G03G9/08797 , G03G9/0918 , G03G9/09775
Abstract: A toner includes toner particles which contain a binder resin, a colorant, a wax, and a resin A having an organic polysiloxane structure; the amount of Si atoms of the toner particles is 4.5 to 10.0; in an analysis of a cross-section of each toner particle, in a surface layer region R from the periphery of the cross-section of the toner particle to the inside at a distance of 10.0% of the particle diameter in the cross-section of the toner particle, the content of Si atoms derived from the organic polysiloxane structure is 90.0% or more with respect to the total amount of Si atoms contained in the toner particle; and in a line analysis along a straight line between the periphery of the surface layer region R and a gravity center of the cross-section, an intensity count of Si atoms in the toner particle satisfies formula Si0>Si1>Si2>Si3≥0.
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公开(公告)号：US09915884B2
公开(公告)日：2018-03-13
申请号：US15274304
申请日：2016-09-23
Applicant: Konica Minolta, Inc.
Inventor： Satoshi Uchino , Shinya Obara , Futoshi Kadonome , Noriyuki Kimpara , Ikuko Sakurada , Takuya Takahashi
CPC classification number: G03G9/0827 , G03G9/0819 , G03G9/08711 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G9/0918 , G03G9/09716 , G03G9/09725 , G03G9/09791
Abstract: The toner of the present invention contains: a toner base particle, and a silica particle and a fatty acid metal salt particle adhering to a surface of the toner base particle. The toner base particle contains a crystalline polyester resin and an amorphous polyester resin. The toner particle has an average circularity of 0.945 to 0.965. The silica particle has a volume average particle size of 70 to 300 nm, and has an average circularity of 0.5 to 0.9. The fatty acid metal salt particle has a median diameter based on a volume of 0.50 to 2.00 μm.
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Patent Agency Ranking
公开(公告)号：US09910372B2
公开(公告)日：2018-03-06
申请号：US15335972
申请日：2016-10-27
Applicant: FUJI XEROX CO., LTD.
Inventor： Moegi Iguchi , Sakon Takahashi , Takeshi Tanabe , Hiroshi Kamada , Yasuaki Hashimoto , Masaaki Usami , Yuka Zenitani , Yuta Saeki , Hiroaki Saijo
CPC classification number: G03G9/0819 , G03G9/0808 , G03G9/0827 , G03G9/08755 , G03G9/08795 , G03G9/08797 , G03G9/0918 , G03G9/09716 , G03G9/09725 , G03G9/09791 , G03G9/1075 , G03G9/1133 , G03G15/0865
Abstract: An electrostatic charge image developing toner includes: toner particles; first silica particles having an average circularity of 0.9 to 1.0, a particle size distribution index of 1.05 to 1.25, and a compression aggregation degree of 60% to 95%; and second silica particles having an average circularity of 0.9 to 1.0, a particle size distribution index of 1.05 to 1.25, and a compression aggregation degree of 60% to 95%, wherein, when an average primary particle diameter of the first silica particles is set as Da (nm) and an average primary particle diameter of the second silica particles is set as Db (nm), relationships of the following Expressions (A1) to (A3) are satisfied: Expression (A1): 80≦Da≦120, Expression (A2): 120≦Db≦200, and Expression (A3): 10≦Db−Da≦120.
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公开(公告)号：US20180031988A1
公开(公告)日：2018-02-01
申请号：US15658161
申请日：2017-07-24
Applicant: CANON KABUSHIKI KAISHA
Inventor： Noritaka Toyoizumi , Yusuke Kosaki , Tetsuya Kinumatsu , Kenji Aoki , Toshifumi Mori , Sakae Suda , Shinnosuke Koji , Shuntaro Watanabe , Kazumichi Nakahama , Atsushi Tani , Takashige Kasuya
CPC classification number: G03G9/0825 , G03G9/0819 , G03G9/0821 , G03G9/08755 , G03G9/08773 , G03G9/08795 , G03G9/08797 , G03G9/0918 , G03G9/09775
Abstract: A toner includes toner particles which contain a binder resin, a colorant, a wax, and a resin A having an organic polysiloxane structure; the amount of Si atoms of the toner particles is 4.5 to 10.0; in an analysis of a cross-section of each toner particle, in a surface layer region R from the periphery of the cross-section of the toner particle to the inside at a distance of 10.0% of the particle diameter in the cross-section of the toner particle, the content of Si atoms derived from the organic polysiloxane structure is 90.0% or more with respect to the total amount of Si atoms contained in the toner particle; and in a line analysis along a straight line between the periphery of the surface layer region R and a gravity center of the cross-section, an intensity count of Si atoms in the toner particle satisfies formula Si0>Si1>Si2>Si3≧0.
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公开(公告)号：US09817327B2
公开(公告)日：2017-11-14
申请号：US15279962
申请日：2016-09-29
Applicant: CANON KABUSHIKI KAISHA
Inventor： Toru Takahashi , Daisuke Tsujimoto , Yoshihiro Ogawa , Hiroki Watanabe , Wakashi Iida
CPC classification number: G03G9/09733 , G03G9/08711 , G03G9/08755 , G03G9/0918
Abstract: A toner comprises a binder resin, a colorant, and a compound represented by the following general formula [1]: (in the formula, R1 to R8 each independently represent a group selected from the hydrogen atom, fluorine atom, bromine atom, iodine atom, hydroxy group, acetyl group, aldehyde group, C1 to C6 hydrocarbon groups, and amino group; X represents a group selected from the oxygen atom, sulfur atom, carbonyl group, and —CR9R10—; and R9 and R10 each independently represent a group selected from the hydrogen atom, bromine atom, C1 to C3 hydroxyalkyl groups, hydroxy group, phenyl group, and C1 to C6 hydrocarbon groups).
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公开(公告)号：US20170242359A1
公开(公告)日：2017-08-24
申请号：US15435455
申请日：2017-02-17
Applicant: KYOCERA Document Solutions Inc.
Inventor： Yusuke WASHINO
CPC classification number: G03G9/09321 , G03G9/0918 , G03G9/09314 , G03G9/09335 , G03G9/0935 , G03G9/09371 , G03G9/09392
Abstract: An electrostatic latent image developing toner includes a plurality of toner particles each including a core and a shell layer covering a surface of the core. The shell layer includes a resin film and a plurality of resin particles. The shell layer contains a first resin forming the resin film, a second resin forming the resin particles, and an alkyl benzene sulfonic acid compound. The first resin is more hydrophobic than the second resin. The second resin is more positively chargeable than the first resin. The second resin has a repeating unit capable of forming a salt with the alkyl benzene sulfonic acid compound.
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公开(公告)号：US20170219944A1
公开(公告)日：2017-08-03
申请号：US15415397
申请日：2017-01-25
Applicant: CANON KABUSHIKI KAISHA
Inventor： Sara Yoshida , Katsuyuki Nonaka , Koji Abe , Toshihiko Katakura , Akane Masumoto , Maho Tanaka
CPC classification number: G03G9/08702 , G03G9/0819 , G03G9/08711 , G03G9/08755 , G03G9/08773 , G03G9/0918 , G03G9/09328
Abstract: Provided is a toner that is excellent in development durability and has excellent solid followability even when the amount of the toner in a toner cartridge is small. The toner includes toner particles each having a surface layer containing an organosilicon polymer, in which: the organosilicon polymer includes a siloxane-based polymer having partial structures represented by the following formulae (1) and (2); and in a chart obtained by 29Si-NMR measurement of a tetrahydrofuran-insoluble matter of the toner particles, an area RT3 of a peak assigned to the partial structure represented by the following formula (1) and an area RfT3 of a peak assigned to the partial structure represented by the following formula (2) satisfy the following formula (3). 0.300>(RfT3/RT3)≧0.010 (3) R—SiO3/2 (1) Rf—SiO3/2 (2)
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