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1.发明公开公开(公告)号：US20230185210A1
公开(公告)日：2023-06-15
申请号：US18079050
申请日：2022-12-12
CPC分类号： G03G9/09385 , G03G9/0821 , G03G9/09328
摘要： A glittering toner includes: a flat metallic pigment having a surface coated with a resin; a polyester-styrene acrylic composite resin; and a polyester resin. When a solubility parameter of the polyester-styrene acrylic composite resin is represented by SP1 (cal/cm3)1/2 and a solubility parameter of the polyester resin is represented by SP2 (cal/cm3)1/2, the SP1 and the SP2 satisfy a relational expression (1): [SP2−SP1>0.3] and the SP1 satisfies a relational expression (2): [10
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公开(公告)号：US10895816B2
公开(公告)日：2021-01-19
申请号：US16569279
申请日：2019-09-12
申请人： Minoru Masuda , Hiroshi Yamashita , Ryota Inoue , Yuka Mizoguchi , Daichi Hisakuni , Tomomi Harashima
发明人： Minoru Masuda , Hiroshi Yamashita , Ryota Inoue , Yuka Mizoguchi , Daichi Hisakuni , Tomomi Harashima
摘要： An image forming apparatus is provided that includes: first and second electrostatic latent image bearers; first and second electrostatic latent image forming devices; first and second developing devices configured to develop first and second electrostatic latent images with a colored toner and a special-color toner to form a colored toner image and a special-color toner image, respectively; a primary transfer device configured to transfer the colored toner image and the special-color toner image onto an intermediate image bearer in an overlapping manner to form a composite toner image; a secondary transfer device configured to transfer the composite toner image onto a recording medium; and a fixing device configured to fix the composite toner image thereon. The special-color toner comprises plate-like and/or film-like pigments. An absolute difference in volume resistivity between the special-color toner and the colored toner is 0.30 log Ω cm or less.
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公开(公告)号：US20200285167A1
公开(公告)日：2020-09-10
申请号：US16793039
申请日：2020-02-18
申请人： Yuka MIZOGUCHI , Ryota INOUE , Hiroshi YAMASHITA , Minoru MASUDA , Daichi HISAKUNI , Tomomi HARASHIMA
发明人： Yuka MIZOGUCHI , Ryota INOUE , Hiroshi YAMASHITA , Minoru MASUDA , Daichi HISAKUNI , Tomomi HARASHIMA
摘要： A toner including: a plate-shaped pigment containing a metal as a main component; and a binder resin containing polyester resin (A) that is insoluble in THF, wherein: a weight average molecular weight (Mw) of a tetrahydrofuran (THF)-soluble component of the toner as determined by gel permeation chromatography (GPC) is 5,000 or higher but 14,000 or lower; and a glass transition temperature (Tg) of a THF-insoluble component of the toner as determined from a differential scanning colorimetry (DSC) curve at first heating in DSC is −60° C. or higher but 10° C. or lower.
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公开(公告)号：US20200089140A1
公开(公告)日：2020-03-19
申请号：US16569279
申请日：2019-09-12
申请人： Minoru MASUDA , Hiroshi YAMASHITA , Ryota INOUE , Yuka MIZOGUCHI , Daichi HISAKUNI , Tomomi HARASHIMA
发明人： Minoru MASUDA , Hiroshi YAMASHITA , Ryota INOUE , Yuka MIZOGUCHI , Daichi HISAKUNI , Tomomi HARASHIMA
摘要： An image forming apparatus is provided that includes: first and second electrostatic latent image bearers; first and second electrostatic latent image forming devices; first and second developing devices configured to develop first and second electrostatic latent images with a colored toner and a special-color toner to form a colored toner image and a special-color toner image, respectively; a primary transfer device configured to transfer the colored toner image and the special-color toner image onto an intermediate image bearer in an overlapping manner to form a composite toner image; a secondary transfer device configured to transfer the composite toner image onto a recording medium; and a fixing device configured to fix the composite toner image thereon. The special-color toner comprises plate-like and/or film-like pigments. An absolute difference in volume resistivity between the special-color toner and the colored toner is 0.30 log Ω cm or less.
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公开(公告)号：US20180224763A1
公开(公告)日：2018-08-09
申请号：US15889461
申请日：2018-02-06
申请人： Akira TANAKA , Hiroyuki TAKEDA , Junichi AWAMURA , Hiroshi YAMADA , Daichi HISAKUNI , Yasuo KAMADA
发明人： Akira TANAKA , Hiroyuki TAKEDA , Junichi AWAMURA , Hiroshi YAMADA , Daichi HISAKUNI , Yasuo KAMADA
IPC分类号： G03G9/087 , C08G63/42 , C08G63/195 , C08G63/20 , G03G15/00
CPC分类号： G03G9/08755 , C08G18/4219 , C08G18/4255 , C08G18/755 , C08G63/16 , C08G63/195 , C08G63/20 , C08G63/42 , C08G63/66 , G03G9/08795 , G03G9/08797 , G03G15/00 , G03G2215/0607 , C08G18/10 , C08G18/3256 , C08G18/42
摘要： A toner is provided. The toner contains a polyester resin. The toner has a glass transition temperature (Tg1st) at first temperature rising of differential scanning calorimetry (DSC) of from 45° C. to 65° C. The toner includes a component insoluble in tetrahydrofuran (THF) having two glass transition temperatures (Tga1st and Tgb1st) at the first temperature rising of DSC, where Tga1st is in a range of −45° C. to 5° C. and Tgb1st is in a range of 45° C. to 70° C. The toner includes a component soluble in THF having a glass transition temperature (Tg2nd) at second temperature rising of DSC of from 40° C. to 65° C.
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公开(公告)号：US11061345B2
公开(公告)日：2021-07-13
申请号：US16798977
申请日：2020-02-24
摘要： A toner including toner particles, each toner particle including a toner base particle, and inorganic particles, wherein the inorganic particles include particles of a fluorine-containing aluminium compound, and a liberation ratio of the inorganic particles is 10% or greater but 60% or less.
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公开(公告)号：US11061343B2
公开(公告)日：2021-07-13
申请号：US16793039
申请日：2020-02-18
申请人： Yuka Mizoguchi , Ryota Inoue , Hiroshi Yamashita , Minoru Masuda , Daichi Hisakuni , Tomomi Harashima
发明人： Yuka Mizoguchi , Ryota Inoue , Hiroshi Yamashita , Minoru Masuda , Daichi Hisakuni , Tomomi Harashima
摘要： A toner including: a plate-shaped pigment containing a metal as a main component; and a binder resin containing polyester resin (A) that is insoluble in THF, wherein: a weight average molecular weight (Mw) of a tetrahydrofuran (THF)-soluble component of the toner as determined by gel permeation chromatography (GPC) is 5,000 or higher but 14,000 or lower; and a glass transition temperature (Tg) of a THF-insoluble component of the toner as determined from a differential scanning colorimetry (DSC) curve at first heating in DSC is −60° C. or higher but 10° C. or lower.
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8.发明申请公开(公告)号：US20200301298A1
公开(公告)日：2020-09-24
申请号：US16822078
申请日：2020-03-18
摘要： A toner for developing an electrostatic image is provided. The toner comprises a binder resin and a glitter pigment having an average surface roughness Ra of 100 nm or less.
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9.发明申请公开(公告)号：US20200272066A1
公开(公告)日：2020-08-27
申请号：US16798977
申请日：2020-02-24
摘要： A toner including toner particles, each toner particle including a toner base particle, and inorganic particles, wherein the inorganic particles include particles of a fluorine-containing aluminium compound, and a liberation ratio of the inorganic particles is 10% or greater but 60% or less.
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公开(公告)号：US09791794B2
公开(公告)日：2017-10-17
申请号：US15052160
申请日：2016-02-24
申请人： Junichi Watanabe , Kenji Yoneda , Kohsuke Satoh , Tsuneyasu Nagatomo , Keiji Makabe , Daichi Hisakuni
发明人： Junichi Watanabe , Kenji Yoneda , Kohsuke Satoh , Tsuneyasu Nagatomo , Keiji Makabe , Daichi Hisakuni
CPC分类号： G03G9/0819 , G03G9/0821 , G03G9/0827 , G03G9/08755 , G03G9/09725
摘要： A toner includes a base particle comprising a crystalline polyester resin; and an external additive which is a group of silica particles having a number-average particle diameter of from 0.01 μm to 0.11 μm on the surface of the toner. A number ratio of the silica particles having a circularity not less than 0.8 is 20% or more in the total number of the silica particles.
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