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:
Jun. 27, 1995
Filed:
Jun. 10, 1993
Applicant:
Inventors:
Shigeru Hayashida, Hitachi, JP;
Seiji Tai, Hitachi, JP;
Assignee:
Hitachi Chemical Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; G03C / ;
U.S. Cl.
CPC ...
540128 ; 430 78 ;
Abstract
Disclosed are naphthalocyanine compounds having siloxy groups bonded to a central metal silicon. The compounds can be used as a charge generating substance of an electrophotographic plate having high sensitivity to the longer wavelength light of about 800 nm without conducting a special treatment. The naphthalocyanine compounds are represented by the formula: ##STR1## wherein L is a group of the formula R.sub.1 R.sub.2 R.sub.3 SiO--, and R.sub.1, R.sub.2 and R.sub.3 are each a same alkyl group having 1-3 carbon atoms.