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:
Feb. 27, 1996
Filed:
Jan. 25, 1994
Applicant:
Inventors:
Mikio Itagaki, Ibaraki, JP;
Shigeru Hayashida, Ibaraki, JP;
Megumi Matsui, Ibaraki, JP;
Hiroko Ishikawa, Ibaraki, JP;
Yoshii Morishita, Tochigi, JP;
Takayuki Akimoto, Ibaraki, JP;
Assignee:
Hitachi Chemical Company Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 78 ; 430 58 ; 430 59 ; 430135 ; 540140 ; 540141 ; 540143 ;
Abstract
Disclosed are a phthalocyanine composition which comprises having main diffraction peaks at 7.5.degree., 22.5.degree., 24.3.degree., 25.3.degree. and 28.6.degree. of Bragg angles (2.theta..+-.0.2.degree.) in an X-ray diffraction spectrum with Cu K.alpha., a process for preparing the same, an electrophotographic photoreceptor using the same and a coating solution for a charge generation layer containing the same.