Radiation imagery chemistry: process – composition – or product th – Electric or magnetic imagery – e.g. – xerography,... – Radiation-sensitive composition or product
Reexamination Certificate
2006-05-16
2006-05-16
Chapman, Mark A. (Department: 1756)
Radiation imagery chemistry: process, composition, or product th
Electric or magnetic imagery, e.g., xerography,...
Radiation-sensitive composition or product
C430S058150, C430S058350, C430S058500, C430S058600, C430S058700, C399S159000
Reexamination Certificate
active
07045261
ABSTRACT:
In an electrophotographic photosensitive member having a support, and provided thereon a photosensitive layer, a surface layer of the electrophotographic photosensitive member contains a high-molecular-weight charge-transporting material having a weight-average molecular weight Mw of from 1,000 or more to 9,000 or less, and the ratio of the weight-average molecular weight Mw of the high-molecular-weight charge-transporting material to a number-average molecular weight Mn of the high-molecular-weight charge-transporting material, Mw/Mn, is from more than 1.00 to 1.10 or less. Also disclosed are a process cartridge and an electrophotographic apparatus which have such an electrophotographic photosensitive member.
REFERENCES:
patent: 4806443 (1989-02-01), Yanus et al.
patent: 5116708 (1992-05-01), Shikatani et al.
patent: 5654119 (1997-08-01), Ishii et al.
patent: 5733697 (1998-03-01), Endoh et al.
patent: 6258499 (2001-07-01), Itami
patent: 64-9964 (1989-01-01), None
patent: 2-282263 (1990-11-01), None
patent: 3-221522 (1991-09-01), None
patent: 8-208820 (1996-08-01), None
Kaku Kenichi
Ogaki Harunobu
Takaya Itaru
Tanaka Takakazu
Canon Kabushiki Kaisha
Chapman Mark A.
Fitzpatrick ,Cella, Harper & Scinto
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