公开(公告)号：EP2869130A4

公开(公告)日：2015-12-30

申请号：EP13809495

申请日：2013-06-25

Applicant: CANON KK

Inventor： YAMADA MASAKI ,  SAKURAI YUJI ,  ISHII TORU ,  KOYANAGI TAKASHI

IPC: G03G15/08

CPC classification number: G03G15/0806 ,  G03G15/0818 ,  Y10T29/49544

公开(公告)号：EP2816417A4

公开(公告)日：2015-07-08

申请号：EP12868465

申请日：2012-10-17

Applicant: CANON KK

Inventor： NAKAMURA MINORU ,  URUSHIHARA SHOHEI ,  KOYANAGI TAKASHI ,  KAWAMURA KUNIMASA ,  YAMADA MASAKI

IPC: G03G15/08 ,  C08L83/05

CPC classification number: G03G15/0865 ,  G03G15/0818

公开(公告)号：EP2660657A4

公开(公告)日：2016-07-06

申请号：EP11852903

申请日：2011-12-16

Applicant: CANON KK

Inventor： YAMADA MASAKI ,  KUSABA TAKASHI ,  KAWAMURA KUNIMASA ,  SAKURAI YUJI ,  ISHII TORU

IPC: G03G15/08

CPC classification number: G03G15/0818 ,  Y10T29/49544

公开(公告)号：EP2881797A4

公开(公告)日：2016-06-22

申请号：EP13825752

申请日：2013-07-26

Applicant: CANON KK

Inventor： ISHIDA KAZUTOSHI ,  YAMADA MASAKI ,  ITO MINORU ,  WAKABAYASHI KAZUHITO ,  UESUGI TOMOYA

IPC: G03G15/08 ,  C08G18/10 ,  G03G15/02

CPC classification number: G03G15/08 ,  G03G15/0233 ,  G03G15/0818 ,  Y10T428/31551 ,  Y10T428/31598 ,  Y10T428/31855

公开(公告)号：EP2287675A4

公开(公告)日：2013-09-04

申请号：EP09754631

申请日：2009-05-18

Applicant: CANON KK

Inventor： NAKAMURA MINORU ,  TAKAYAMA YOSHIYUKI ,  NAGAOKA KAZUAKI ,  YAMADA MASAKI

IPC: G03G15/08

CPC classification number: G03G15/0818 ,  Y10T29/49563 ,  Y10T29/49885

公开(公告)号：EP2937735A4

公开(公告)日：2016-07-13

申请号：EP13862651

申请日：2013-12-11

Applicant: CANON KK

Inventor： ARIMURA HIDEYA ,  YAMADA MASAKI ,  YAMAUCHI KAZUHIRO ,  NISHIOKA SATORU

IPC: G03G15/08

CPC classification number: G03G15/02 ,  G03G15/0818 ,  G03G21/18 ,  Y10T428/294

Abstract: Provided is an electrophotographic member with high conductivity and high adhesion to other layers, a process cartridge using the electrophotographic member as a developer carrier, and an electrophotography device. This electrophotographic member has a conductive shaft core and a conduction layer, wherein said conductive layer comprises anions and a resin having the structure indicated in structural formula (1).

公开(公告)号：EP2869129A4

公开(公告)日：2016-01-06

申请号：EP12880251

申请日：2012-10-18

Applicant: CANON KK

Inventor： YAMADA MASAKI ,  KOYANAGI TAKASHI ,  KAWAMURA KUNIMASA ,  NAKAMURA MINORU ,  SAKURAI YUJI ,  URUSHIHARA SHOHEI

IPC: G03G15/08 ,  C08K3/00 ,  C08L25/02 ,  C08L33/06 ,  C08L75/04

CPC classification number: G03G5/14708 ,  C08G18/10 ,  C08G18/4825 ,  C08G18/4854 ,  C08G18/7621 ,  C08G18/7664 ,  C09D175/04 ,  G03G15/0818 ,  G03G15/751 ,  Y10T428/31551 ,  Y10T428/31855 ,  C08G18/48 ,  C08L33/06

公开(公告)号：EP2869128A4

公开(公告)日：2015-07-08

申请号：EP12880129

申请日：2012-10-18

Applicant: CANON KK

Inventor： KAWAMURA KUNIMASA ,  NAKAMURA MINORU ,  URUSHIHARA SHOHEI ,  YAMADA MASAKI ,  KATSUTA YASUSHI

IPC: G03G15/08 ,  G03G9/08 ,  G03G9/087

CPC classification number: G03G15/0806 ,  G03G9/00 ,  G03G9/0821 ,  G03G9/08795 ,  G03G9/08797 ,  G03G15/0818

Abstract: Provided are a development device in which it is possible to reduce the occurrence of fogging in a low temperature environment, and an electrophotographic image formation device with which it is possible to stably form an image over a long period of time. The development device has a toner (1), a development roller (2), and a toner restriction member. The toner (1) satisfies the following conditions: 40‰¤Z(25)‰¤80 and 10‰¤Z(10)‰¤55 (wherein Z(Y) represents the percentile of (X 3(Y) -X 4(Y) ) relative to X 3(Y) at Y°C, X 3(Y) represents the displacement amount obtained after displacement amount (X 2(Y) ) is left to stand for 0.1 seconds, X 2(Y) represents the displacement amount when a 2.94×10 -4 N load is applied at 9.8×10 -5 N/sec, and X 4(Y) represents the displacement amount at 0N when the load is reduced by 9.8×10 -5 N/sec); 0.49×10 -3 ‰¤R(25)‰¤1.70×10 -3 (wherein R(25) represents the tilt from the starting point to the maximum load in the load displacement curve of the toner at 25°C); and 15°C‰¤(P1-TgA)‰¤70°C (wherein TgA represents a glass transition temperature between 40 and 60°C, and P1 represents the maximum heat absorption peak temperature between 70 and 110°C). The development roller (2) has a surface layer containing a urethane resin, wherein the urethane resin has at least one of the structures selected from among (a), and (b) and (c). €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ-CH 2 -CH 2 -CH 2 -CH 2 -O-€ƒ€ƒ€ƒ€ƒ€ƒStructural formula (a)

公开(公告)号：EP2733549A4

公开(公告)日：2014-12-31

申请号：EP12814342

申请日：2012-05-15

Applicant: CANON KK

Inventor： KOYANAGI TAKASHI ,  YAMADA MASAKI ,  KAWAMURA KUNIMASA ,  SAKURAI YUJI

IPC: G03G15/08

CPC classification number: G03G15/0818

公开(公告)号：DE102016116110A1

公开(公告)日：2017-03-02

申请号：DE102016116110

申请日：2016-08-30

Applicant: CANON KK

Inventor： YAMADA MASAKI ,  KAIHARA TAKANORI ,  KOYANAGI TAKASHI ,  YAMAGUCHI SOSUKE

IPC: G03G5/06 ,  G03G15/00

Abstract: Bereitgestellt wird ein elektrophotographisches Element, welches kaum eine Deformation durchläuft, selbst wenn es über eine längere Zeitdauer unter einer Hochtemperatur- und Hochfeuchtigkeitsumgebung einer Belastung ausgesetzt ist, und somit stabil ein qualitativ hochwertiges elektrophotographisches Bild erzeugen kann. Das elektrophotographische Element beinhaltet: ein elektrisch leitfähiges Substrat; und eine elektrisch leitfähige Harzschicht auf dem Substrat, wobei die Harzschicht ein Kation mit einer spezifischen Struktur und ein spezifisches Anion enthält.