The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 04, 1994
Filed:
Jun. 08, 1992
Yoshii Morishita, Hitachi, JP;
Yasushi Sugimoto, Hitachi, JP;
Shigeru Hayashida, Hitachi, JP;
Hiroko Ishikawa, Katsuta, JP;
Yoshiaki Noda, Ichikawa, JP;
Shigeru Murakami, Tokyo, JP;
Munehiro Sato, Ichikawa, JP;
Yoshinori Saito, Ichikawa, JP;
Naoji Kurata, Nishinomiya, JP;
Yoshio Sugita, Chiba, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Abstract
Disclosed is an electrophotographic member containing as a charge transport material a fluorine-containing N,N,N',N'-tetraarylbenzidine derivative which is remarkably excellent in solubility in an organic solvent and/or a binder such as polycarbonate resin, etc., can show very excellent electrophotographic properties such as high sensitivity, low residual potential and high durability. Further, a fluorine-containing N,N,N',N'-tetraarylbenzidine derivative usable as a charge transport material, and a process for producing the same are disclosed. Furthermore, a fluorine-containing diarylamine usable for producing the fluorine-containing N,N,N',N'-tetraarylbenzidine derivative, and a process for producing the same are disclosed.