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. 05, 1993
Filed:
Feb. 19, 1992
Applicant:
Inventors:
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ; C07D / ;
U.S. Cl.
CPC ...
564308 ; 548410 ; 548411 ;
Abstract
Benzylideneindene compounds, which are useful not only as the photoconductive material for electrophotography, but also as a charge transporting material employed in a function-separating type photoconductor in which an organic or inorganic pigment is used as a charge generating material, and an electrophotographic photoconductor containing at least one of the above benzylideneindene compounds in a photoconductive layer thereof, are disclosed.