公开(公告)号：US20190219937A1

公开(公告)日：2019-07-18

申请号：US16368121

申请日：2019-03-28

Applicant: Mitsubishi Chemical Corporation

Inventor： Akiteru FUJII ,  Yuka NAGAO ,  Wataru MIYASHITA

IPC: G03G5/047 ,  G03G5/05 ,  G03G5/06

Abstract: The present invention aims to provide an electrophotographic photoreceptor including a charge transport layer and being excellent in electrical properties and adhesiveness while exhibiting sufficient abrasion resistance indispensable for prolonging the life, and an electrophotographic photoreceptor cartridge and an image forming apparatus including the electrophotographic photoreceptor, which is an electrophotographic photoreceptor including a charge transport layer including at least two layers, wherein an elastic deformation ratio of a binder resin contained in a first charge transport layer which is an outermost layer and an elastic deformation ratio of a binder resin contained in a second charge transport layer satisfy a predetermined relationship.

公开(公告)号：US20170285498A1

公开(公告)日：2017-10-05

申请号：US15622843

申请日：2017-06-14

Applicant: MITSUBISHI CHEMICAL CORPORATION

Inventor： Atsushi YOSHIZAWA ,  Wataru MIYASHITA ,  Mitsuo WADA ,  Akiteru FUJII ,  Takayuki SHOUDA

IPC: G03G5/06 ,  G03G5/047 ,  G03G5/05 ,  G03G5/14 ,  G03G15/00 ,  G03G5/10

CPC classification number: G03G5/0614 ,  G03G5/047 ,  G03G5/0542 ,  G03G5/056 ,  G03G5/0564 ,  G03G5/0603 ,  G03G5/0605 ,  G03G5/0607 ,  G03G5/0609 ,  G03G5/0616 ,  G03G5/0629 ,  G03G5/0637 ,  G03G5/0651 ,  G03G5/0657 ,  G03G5/0668 ,  G03G5/0672 ,  G03G5/0696 ,  G03G5/102 ,  G03G5/142 ,  G03G15/75 ,  G03G2215/00957

Abstract: The present invention relates to an electrophotographic photoreceptor comprising: a conductive support; and a photosensitive layer on the conductive support, wherein the photosensitive layer contains a charge transport substance, a binder resin, and a compound which has a molecular weight of equal to or less than 350, and is represented by General Formula (1).

公开(公告)号：US20220197162A1

公开(公告)日：2022-06-23

申请号：US17692927

申请日：2022-03-11

Applicant: Mitsubishi Chemical Corporation

Inventor： Mitsuo WADA ,  Wataru MIYASHITA ,  Takahiro CHODA ,  Akira ANDO ,  Hiroe FUCHIGAMI

IPC: G03G5/06 ,  G03G5/047 ,  G03G5/05

Abstract: An object of the present invention is to provide an electrophotographic photoreceptor which can prevent an increase in potential even using a fluorine resin in a charge transport layer, and can achieve both electrical properties and abrasion resistance, and present invention relates to a lamination type electrophotographic photoreceptor, in which a charge transport layer of the lamination type electrophotographic photoreceptor contains a compound having an E_homo of −4.550 eV or more based on structure optimization calculation by density functional calculation B3LYP/6-31G (d, p) and fluorine resin particles, and a content of the fluorine resin particles is 3% by weight to 20% by weight based on a total mass of the charge transport layer.