Global Patent Index - EP 0397146 A3

EP 0397146 A3 19910424 - LAMINATE TYPE PHOTOSENSITIVE MATERIAL FOR ELECTROPHOTOGRAPHY

Title (en)

LAMINATE TYPE PHOTOSENSITIVE MATERIAL FOR ELECTROPHOTOGRAPHY

Publication

EP 0397146 A3 19910424 (EN)

Application

EP 90108738 A 19900509

Priority

  • JP 11430889 A 19890509
  • JP 31364589 A 19891130

Abstract (en)

[origin: EP0397146A2] Disclosed is a laminate type photosensitive material for the electrophotography, which comprises a charge-generating layer and a charge-transporting layer, which are formed on an electroconductive substrate, wherein the charge-transporting layer comprises a first charge-transporting material having an ionization potential smaller than that of a charge-generating material used for the charge-generating layer and a second charge-transporting material having an ionization potential larger than that of the charge-generating material. In this photosensitive material, by using a charge-transporting material having an ionization potential larger than that of the charge-generating material in combination with the charge-transporting material having an ionization potential smaller than that of the charge-generating material, a good residual potential can be maintained without disturbing injection of holes in the charge-transporting layer, the stability of the surface potential at the repeated use is improved and a good charging capacity can be attained.

IPC 1-7

G03G 5/047

IPC 8 full level

G03G 5/047 (2006.01)

CPC (source: EP KR)

G03G 5/00 (2013.01 - KR); G03G 5/047 (2013.01 - EP)

Citation (search report)

  • [A] DE 3141049 A1 19820603 - KONISHIROKU PHOTO IND [JP]
  • [A] PATENT ABSTRACTS OF JAPAN vol. 10, no. 132 (P-456)(2189) 16 May 1986, & JP-A-60 254044 (TOSHIBA K.K.) 14 December 1985,
  • [A] PATENT ABSTRACTS OF JAPAN vol. 07, no. 238 (P-231)(1383) 22 October 1983, & JP-A-58 125044 (RICOH K.K.) 25 July 1983,
  • [A] PATENT ABSTRACTS OF JAPAN vol. 07, no. 238 (P-231)(1383) 22 October 1983, & JP-A-58 123546 (RICOH K.K.) 22 July 1983,
  • [A] PATENT ABSTRACTS OF JAPAN vol. 07, no. 210 (P-223)(1355) 16 September 1983, & JP-A-58 105234 (KONISHIROKU SHASHIN KOGYO K.K.) 23 June 1983,
  • [A] PATENT ABSTRACTS OF JAPAN vol. 12, no. 494 (P-805)(3341) 23 December 1988, & JP-A-63 205659 (HITACHI CHEM. CO., LTD.) 25 August 1988,

Designated contracting state (EPC)

CH DE FR GB IT LI NL

DOCDB simple family (publication)

EP 0397146 A2 19901114; EP 0397146 A3 19910424; EP 0397146 B1 19940803; CA 2016257 A1 19901109; CA 2016257 C 19950905; DE 69011185 D1 19940908; DE 69011185 T2 19941208; KR 900018749 A 19901222; KR 960010180 B1 19960726

DOCDB simple family (application)

EP 90108738 A 19900509; CA 2016257 A 19900508; DE 69011185 T 19900509; KR 900006505 A 19900509