公开(公告)号：US11884816B2

公开(公告)日：2024-01-30

申请号：US16935435

申请日：2020-07-22

申请人： FUJIFILM BUSINESS INNOVATION CORP.

发明人： Yukiaki Nakamura ,  Masaru Takahashi ,  Ryutaro Kembo

IPC分类号： C08L67/00 ,  C08L75/04 ,  C08K5/00 ,  G03G9/09 ,  G03G9/08 ,  G03G9/087

CPC分类号： C08L67/00 ,  C08L75/04 ,  C08K5/0041

摘要： A resin particle includes a binder resin; a fluorescent colorant A; and a colorant B other than the fluorescent colorant A, in which the resin particle includes a region RA in which a content of the fluorescent colorant A is larger than a content of the colorant B and a region RB in which a content of the colorant B is larger than a content of the fluorescent colorant A.

公开(公告)号：US11965043B2

公开(公告)日：2024-04-23

申请号：US16921885

申请日：2020-07-06

申请人： FUJIFILM Business Innovation Corp.

发明人： Ryutaro Kembo ,  Masaru Takahashi ,  Yukiaki Nakamura ,  Tomoaki Tanaka ,  Satomi Hara

IPC分类号： C08G65/34 ,  C08F12/08 ,  C08G63/672 ,  C08K5/32 ,  C08K5/3437

CPC分类号： C08F12/08 ,  C08G63/672 ,  C08G65/34 ,  C08K5/32 ,  C08K5/3437

摘要： A resin particle includes a fluorescent colorant and a color pigment. A hue angle of the resin particle and a hue angle of the fluorescent colorant are different from each other. When a fluorescence peak wavelength in a spectral reflectance of the fluorescent colorant is represented by A (nm), an integrated value of a spectral reflectance (%) of the color pigment in a wavelength range of from A−30 (nm) to A+30 (nm) is 2,500 or more.

公开(公告)号：US11693339B2

公开(公告)日：2023-07-04

申请号：US17397232

申请日：2021-08-09

申请人： FUJIFILM Business Innovation Corp.

发明人： Masato Ono ,  Masayuki Seko ,  Tomoaki Tanaka ,  Yukiaki Nakamura ,  Ryutaro Kembo

IPC分类号： G03G15/16 ,  G03G15/00

CPC分类号： G03G15/1605 ,  G03G15/162 ,  G03G15/6585

摘要： A unit includes: a developing device configured to develop an electrostatic charge image that is formed on a surface of an image carrier, as a toner image with a developer including a flat toner containing a flat pigment, the developer being accommodated in the developing device; and a transfer device including an intermediate transfer belt onto which the toner image formed on the surface of the image carrier is primarily transferred, a primary transfer device configured to primarily transfer the toner image formed on the surface of the image carrier to a surface of the intermediate transfer belt, and a secondary transfer device configured to secondarily transfer the toner image on the surface of the intermediate transfer belt to a surface of a recording medium, wherein the intermediate transfer belt contains a resin and conductive carbon particles, and after the flat toner adheres to an outer circumferential surface of the intermediate transfer belt in a loading amount of 3 g/cm2, in a case where air is blown to the outer circumferential surface from an upper side of the outer circumferential surface while increasing a blowing pressure, all the flat toner adhering to the outer circumferential surface is separated from the outer circumferential surface at a blowing pressure of 25 kPa or less.