公开(公告)号：US10274854B2

公开(公告)日：2019-04-30

申请号：US15681580

申请日：2017-08-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Masahide Yamada ,  Akinori Terada ,  Keiichi Ishikawa ,  Kenichi Miyamoto

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/093

Abstract: A toner for developing an electrostatic charge image, the toner including: elemental iron, wherein a content of the elemental iron is in a range of 1.0×103 to 1.0×104 ppm, based on a total weight of the toner; elemental silicon, wherein a content of the elemental silicon is in a range of 1.0×103 to 5.0×103 ppm, based on a total weight of the toner; elemental sulfur, wherein a content of the elemental sulfur is in a range of 500 to 3,000 ppm, based on a total weight of the toner; optionally elemental fluorine, wherein a content of the elemental fluorine, if present, is in a range of 1.0×103 to 1.0×104 ppm; and a binder resin.

公开(公告)号：US10234780B2

公开(公告)日：2019-03-19

申请号：US15200710

申请日：2016-07-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Akinori Terada ,  Keiichi Ishikawa ,  Kenichi Miyamoto ,  Masahide Yamada

IPC: G03G9/093 ,  G03G9/087 ,  G03G9/08

Abstract: A toner for developing an electrostatic charge image includes three or more elements selected from a group including an iron element, a silicon element, a sulfur element and a fluorine element and a binder resin including an amorphous polyester-based resin.

公开(公告)号：US10261430B2

公开(公告)日：2019-04-16

申请号：US15403421

申请日：2017-01-11

Applicant: Samsung Electronics Co., Ltd.

Inventor： Tomohito Chokan ,  Keiichi Ishikawa ,  Manabu Takezawa

IPC: G03G5/147

Abstract: An electrophotographic photoreceptor includes a conductive support, a photosensitive layer on the conductive support, and a protective layer on the photosensitive layer. The protective layer includes a binder resin, metal oxide particles, and fluororesin particles. The metal oxide particles include, on a surface thereof, a first surface-treating agent including fluorine atoms, and a second surface-treating agent including a polymerizable reactive group and a hydrophobic group. At least some of the metal oxide particles are supported on a surface of the fluororesin particles. The fluororesin particles are fixed to the binder resin via the at least some of the metal oxide particles supported on the surface of the fluororesin particles.

公开(公告)号：US09740125B2

公开(公告)日：2017-08-22

申请号：US15046822

申请日：2016-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Masahide Yamada ,  Akinori Terada ,  Keiichi Ishikawa ,  Kenichi Miyamoto

IPC: G03G9/087 ,  G03G9/08 ,  G03G9/093

CPC classification number: G03G9/08755 ,  G03G9/0804 ,  G03G9/0806 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/08797 ,  G03G9/09328

Abstract: A toner for developing an electrostatic charge image, the toner including: elemental iron, wherein a content of the elemental iron is in a range of 1.0×103 to 1.0×104 ppm, based on a total weight of the toner; elemental silicon, wherein a content of the elemental silicon is in a range of 1.0×103 to 5.0×103 ppm, based on a total weight of the toner; elemental sulfur, wherein a content of the elemental sulfur is in a range of 500 to 3,000 ppm, based on a total weight of the toner; optionally elemental fluorine, wherein a content of the elemental fluorine, if present, is in a range of 1.0×103 to 1.0×104 ppm; and a binder resin.