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. 30, 1999
Filed:
Sep. 25, 1997
Applicant:
Inventors:
Yukimasa Watanabe, Osaka, JP;
Sakae Saito, Osaka, JP;
Hirofumi Kawaguchi, Osaka, JP;
Akiyoshi Urano, Osaka, JP;
Fumio Sugai, Osaka, JP;
Atsushi Fujii, Osaka, JP;
Yasufumi Mizuta, Osaka, JP;
Toshiyuki Fukami, Osaka, JP;
Ichiro Yamazato, Osaka, JP;
Yuji Tanaka, Osaka, JP;
Eiichi Miyamoto, Osaka, JP;
Hideo Nakamori, Osaka, JP;
Mitsuo Ihara, Osaka, JP;
Assignee:
Mita Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ; G03G / ;
U.S. Cl.
CPC ...
430 5825 ; 430 83 ; 430132 ; 430133 ;
Abstract
The present invention provides a naphthoquinone derivative represented by the general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined in the specification. An electrophotosensitive material containing this naphthoquinone derivative as an electron transferring material has high sensitivity.