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:
Dec. 12, 1989
Filed:
Jan. 25, 1988
Shigeru Hayashida, Hitachi, JP;
Seiji Tai, Hitachi, JP;
Nobuyuki Hayashi, Hitachi, JP;
Yasushi Iwakabe, Hitachi, JP;
Noriyuki Kinjo, Hitachi, JP;
Shunichi Numata, Hitachi, JP;
Hitachi Chemical Company, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
Disclosed are an electrophotographic plate comprising a photoconductive layer containing an organic photoconductive substance on an electroconductive support, characterized in that said photoconductive layer has a film containing as the organic photoconductive substance a metal naphthalocyanine derivative represented by the formula (I): ##STR1## wherein M represents germanium or tin; L and L' each independently represent a halogen, a hydroxyl group, an alkyl group, an alkoxy group or a siloxy group of the formula R.sub.1 R.sub.2 R.sub.3 SiO-- (wherein R.sub.1, R.sub.2 and R.sub.3 each independently represent a hydrogen atom, an alkyl group, an alkoxy group or an aryl group), a metal naphthalocyanine derivative defined above and a process for producing the same.