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:
Nov. 03, 1998
Filed:
May. 29, 1997
Eiichi Miyamoto, Osaka, JP;
Mikio Kakui, Osaka, JP;
Hideo Nakamori, Osaka, JP;
Yukikatsu Imanaka, Osaka, JP;
Tadashi Sakuma, Osaka, JP;
Maki Uchida, Osaka, JP;
Hiroaki Iwasaki, Osaka, JP;
Yasuyuki Hanatani, Osaka, JP;
Nariaki Tanaka, Osaka, JP;
Yuka Nakamura, Osaka, JP;
Mita Industrial Co., Ltd., Osaka, JP;
Abstract
The present invention provides a novel naphthylenediamine derivative which is superior in electric charge transferring capability, compatibility with binding resin and stability, and an electrophotosensitive material which has a higher sensitivity and an excellent durability. The above naphthylenediamine derivative is represented by the following general formula (1), and the electrophotosensitive material is formed by providing a photosensitive layer having this naphthylenediamine derivative as an electric charge transferring material on a conductive substrate. ##STR1## wherein R.sup.1 to R.sup.4, R.sup.5a to R.sup.5f and a to d are as defined.