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:
Mar. 16, 1999
Filed:
Jul. 15, 1997
Applicant:
Inventors:
Yoshimasa Matsushima, Kanagawa, JP;
Tohru Kobayashi, Kanagawa, JP;
Hiroshi Sugiyama, Kanagawa, JP;
Yoko Takahashi, Kanagawa, JP;
Toshimitsu Hagiwara, Kanagawa, JP;
Assignee:
Takasago International Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 59 ; 430 83 ;
Abstract
An electrophotographic photoreceptor comprising a charge transporting material containing at least one triphenylamine compound represented by general formula (1) and at least one compound selected from the group consisting of a hydrazone compound, a triphenylamine dimer compound and a distyryl compound: ##STR1## said charge transporting material being able to express high carrier mobility, being high in solubility in a binder polymer, and being able to form a homogeneous charge transporting layer.